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共用题干
Cell Phones
I Believe it or not,cell phones have been around for over a quarter of a century.The first commercial
cell phone systemfl was developed by the Japancoc in I 979.But cell phones have changed a lot
since that
time.The early cell phones were big and heavy but they have developed into small and light palm-sized mod-
els.There have been huge (lcveloprnents in their functions,too;we have had call forwarding,text messaging,
answering services and hands-free use for years,but now there are countless new facilities,su,ch as instant ac-
cess to the Internet and receiving and sending photos.
2 Cell phones have become very common in our lives;recent statistics suggest as many as one in three
people cii the planet now have a cell phone,and most of them say they couldn't live without one.Cell phones
are used in every area of our lives and have become a necessary tool,used for essential arrangements,social
contact and business.They have made it easier to call for help on the highway.They have made it possible to
keep in touch with people"on the move”一when people are traveling.
3 Cell phones have made communication easier and have reduced the need for family arguments.We
can use cell phones to let our family know we'11 be late or if there’。a sudden change of tian or an emergen-
cy.Cell phones have eased the worries of millions of parents when their teenagers are out late,they can now
contact their children at any time.
4 This does not mean that cell phones are all good news.They have brought with them a number of
new headaches for their owners;it costs a lot to replace stolen phones,something that is becoming a frequent
occurrence,and have you ever seen such huge phone bills? More serious,however,is the potential health
problem they bring:there are fears that radiation from the phones may cause brain tumor（肿瘤）.This may be
a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can't
live without!
Cell Phones
I Believe it or not,cell phones have been around for over a quarter of a century.The first commercial
cell phone systemfl was developed by the Japancoc in I 979.But cell phones have changed a lot
since that
time.The early cell phones were big and heavy but they have developed into small and light palm-sized mod-
els.There have been huge (lcveloprnents in their functions,too;we have had call forwarding,text messaging,
answering services and hands-free use for years,but now there are countless new facilities,su,ch as instant ac-
cess to the Internet and receiving and sending photos.
2 Cell phones have become very common in our lives;recent statistics suggest as many as one in three
people cii the planet now have a cell phone,and most of them say they couldn't live without one.Cell phones
are used in every area of our lives and have become a necessary tool,used for essential arrangements,social
contact and business.They have made it easier to call for help on the highway.They have made it possible to
keep in touch with people"on the move”一when people are traveling.
3 Cell phones have made communication easier and have reduced the need for family arguments.We
can use cell phones to let our family know we'11 be late or if there’。a sudden change of tian or an emergen-
cy.Cell phones have eased the worries of millions of parents when their teenagers are out late,they can now
contact their children at any time.
4 This does not mean that cell phones are all good news.They have brought with them a number of
new headaches for their owners;it costs a lot to replace stolen phones,something that is becoming a frequent
occurrence,and have you ever seen such huge phone bills? More serious,however,is the potential health
problem they bring:there are fears that radiation from the phones may cause brain tumor（肿瘤）.This may be
a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can't
live without!
We can use cell phones to communicate with others when we encounter__________.
A:a necessity
B:an emergency
C:a number of new hcadaches
D:family arguments
F:big and light palm-sized models
F:countless new facilities
A:a necessity
B:an emergency
C:a number of new hcadaches
D:family arguments
F:big and light palm-sized models
F:countless new facilities
参考答案
参考解析
解析：第一段开篇就说从手机发明到现在已过去了四分之一多个世纪，又对比了手机早期和 近期在功能一上的不同，由此可知是在叙述手机的历史。
第二段讲手机在人们的生活中十分常见，许多人离不开手机，手机用于各个场合，因而 意在说明手机存在于日常生活中。
第三段列举了手机对于家人联系上的作用，有助于减少家庭的误会纠纷，有助于父母 联系孩子，因而讲的是手机同家庭的关系。
最后一段第一句就说明了该段要讲的是手机带来的问题，段中虽举了青少年的例子，但 不局限于描写青少年，因此选F。
根据第一段末尾可知答案。
根据第二段第三行可知答案。
根据第三段第二句可知答案。
根据第四段第二句可知答案。第4部分；阅读理解第一篇 本文主要介绍了北极冰川融化的情况、原因和科学家们的担心。
第二段讲手机在人们的生活中十分常见，许多人离不开手机，手机用于各个场合，因而 意在说明手机存在于日常生活中。
第三段列举了手机对于家人联系上的作用，有助于减少家庭的误会纠纷，有助于父母 联系孩子，因而讲的是手机同家庭的关系。
最后一段第一句就说明了该段要讲的是手机带来的问题，段中虽举了青少年的例子，但 不局限于描写青少年，因此选F。
根据第一段末尾可知答案。
根据第二段第三行可知答案。
根据第三段第二句可知答案。
根据第四段第二句可知答案。第4部分；阅读理解第一篇 本文主要介绍了北极冰川融化的情况、原因和科学家们的担心。
更多 “共用题干 Cell PhonesI Believe it or not,cell phones have been around for over a quarter of a century.The first commercial cell phone systemfl was developed by the Japancoc in I 979.But cell phones have changed a lotsince that time.The early cell phones were big and heavy but they have developed into small and light palm-sized mod- els.There have been huge (lcveloprnents in their functions,too;we have had call forwarding,text messaging, answering services and hands-free use for years,but now there are countless new facilities,su,ch as instant ac- cess to the Internet and receiving and sending photos.2 Cell phones have become very common in our lives;recent statistics suggest as many as one in three people cii the planet now have a cell phone,and most of them say they couldn't live without one.Cell phones are used in every area of our lives and have become a necessary tool,used for essential arrangements,socialcontact and business.They have made it easier to call for help on the highway.They have made it possible tokeep in touch with people"on the move”一when people are traveling.3 Cell phones have made communication easier and have reduced the need for family arguments.Wecan use cell phones to let our family know we'11 be late or if there’。a sudden change of tian or an emergen- cy.Cell phones have eased the worries of millions of parents when their teenagers are out late,they can nowcontact their children at any time.4 This does not mean that cell phones are all good news.They have brought with them a number of new headaches for their owners;it costs a lot to replace stolen phones,something that is becoming a frequent occurrence,and have you ever seen such huge phone bills? More serious,however,is the potential healthproblem they bring:there are fears that radiation from the phones may cause brain tumor（肿瘤）.This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can'tlive without!We can use cell phones to communicate with others when we encounter__________. A:a necessityB:an emergencyC:a number of new hcadachesD:family argumentsF:big and light palm-sized models F:countless new facilities” 相关考题
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Many people driving around the suburbs in their giant SUVs while taking on their new cell phones are, in fact, deeply ____.
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There's no doubt that work has found its way into every hour of our day, thanks to beepers, cell phones and e-mail.
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According to the passage, which of the following statements is TRUE?()
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第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.On the safety issue of mobile phones,the manufacturing companies_________.A:deny the existence of mobile phone radiationB:develop new technology to reduce mobile phone radiationC:try to prove that mobile phones are not harmful to healthD:hold that the amount of radiation is too small to worry about
考题
共用题干
第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The writer's purpose of writing this article is to advise people_________.A:to buy mobile phonesB:to use mobile phones less oftenC:to update regular phones D:to stop using mobile phones
考题
共用题干
第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The word"detected"in Paragraph 3 could be best replaced by_________.A:curedB:removedC:discoveredD:caused
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第二篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.People buy cell phones for the following reasons EXCEPT that_________.A:they're popularB:they're usefulC:they're cheapD:they're convenient
考题
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Cell Phone Lets Your Secret OutYour cell phone holds secrets about you.Besides the names and________(51)that you'ye pro- grammed into it,traces of your DNA linger on the device,according to a new study.DNA is genetic material that_________(52)in every cell.Like your fingerprint, your DNA is unique to you一_______(53)you have an identical twin.Scientists today routinely analyze DNA in blood, saliva,or hair left__________(54)at the scene of a crime.The results often help detectives identify________(55)and their victims.Your cell phone can reveal more about you ________(56)you mightthink.Meghan J.McFadden,a scientist at McMaster University in Hamilton,Ontario,heard about a crime in which the suspect bled onto a cell phone and later dropped the_________(57).This made her wonder whether traces of DNA lingered on cell phones even when no blood was involved._________(58)she and colleague Margaret Wallace of the City University of New York analyzed the flip一open phones of 10 volun- teers.They used swabs to collect__________( 59)traces of the users from two parts of the phone:the outside,where the user holds it,and the_________(60),which is placed at the user's ear.The scientists scrubbed the phones using a solution made mostly________(61)alcohol.The aim of washing was to remove all detectable traces of DNA.The owners got their phones__________(62)foranother week.Then the researchers collected the phones and repeated the swabbing of each phone once more。The scientists discovered DNA that_________ (63)to the phone's speaker on each of the phones. Better samples were collected from the outside of each phone,but those swabs also picked up DNA that be- longed to other people who had apparently also handled the phone.________(64),DNA showed up even in swabs that were taken immediately after the phones were scrubbed.That suggests that washing won't removeall traces of evidence from a criminal's device.So cell phones can now be added to the.__________(65)of clues that can clinch a crime-scene investigation._________(63)A:was givenB:belongedC:was ownedD:became
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共用题干
第三篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue.Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning （扫描）equipment. In one case , a traveling salesman had to retire at a young age because of serious memory Loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man usedto talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years.His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it.Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.People buy cell phones for the following reasons EXCEPT that__________.A:they're convenientB:they're usefulC:they're popularD:they're cheap
考题
Cell Phone Lets Your Secrets Out
Your cell phone holds secrets about you.Besides the names and numbers that you've programmed into it, ______traces____(51) of your DNA linger (遗留) on thedevice according to a new study
DNA is genetic (遗传的)material _____that_____ (52) appears in every cell. Like your fingerprint, yourDNA is _____unique______ (53) to you——unless you have an identical twin. Scientiststoday analyze DNA in blood, saliva (唾液), orhair left ____behind_______ (54) at the scene of a crime. The results oftenhelp detectives identify ____criminals______ (55) and their victims. Your cellphone can reveal more about you ____than_____ (56) you might think.
Meghan J. McFadden, a scientist at McMasterUniversity in Hamilton, Ontario, heard about a crime in which the suspect bledonto a cell phone and later dropped the____device_____ (57). This made herwonder whether traces of DNA lingered on cell phones一evenwhen no blood was___involved_____(58). She and colleague Margaret Wallace ofthe City University of NewYork analyzed the flip-open phones(翻盖手机)of10 volunteers. They used swabs (药签) tocollect _____invisible___ (59) traces of the users from two parts of the phone:the outside, where the user ____holds_____(60) it, and the speaker which isplaced at the user's ear
The scientists cleaned the phones using asolution made mostly__of____(61) alcohol. The aim of washing was to remove alldetectable traces of DNA. The owners got their phones back for another week.Then the researchers ___returned________ (62) the phones and cleaned each phoneonce more.
The scientists discovered DNA that _____belonged______(63) to the phone's speaker on each of the phones. Better samples werecollected from the outside of each phone, but those swabs also picked up DNAthat belonged to other people who had apparently also ____handed______ (64) thephone
Surprisingly, DNA showed up even in swabsthat were taken immediately after the phones were scrubbed. That suggests thatwashing won't remove all traces of ___evidence________ (65) from a criminal'sdevice. So cell phones can now be added to the list of clues that can clinch (确定)a crime-scene investigation.
文章(41~55)
A. name
B.pictures
C. shapes
D. traces
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共用题干
第三篇Cell Phones : Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue.Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning （扫描）equipment. In one case , a traveling salesman had to retire at a young age because of serious memory Loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man usedto talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years.His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it.Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The writer's purpose of wnting this article is to advise people__________.A:to use mobile phones less often B:to update regular phonesC:to stop using mobile phonesD:to buy mobile phones
考题
The mobility of cell phones means you can be anywhere and have the____or should I say the convenience, of a phone.A.must
B.accompaniment
C.conclusion
D.necessity
考题
共用题干
第三篇Cell Phones: Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modem scanning （扫描）equipment. In one case , a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machinescan detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The writer's purpose of writing this article is to advise people___________.A:to buy mobile phonesB:to update regular phonesC:to use mobile phones less oftenD:to stop using mobile phones
考题
共用题干
第二篇Cell Phones: Hang Up or Keep Talking?Millions of people are using cell phones today.In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with young people.They find that the phones are more than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue.Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case,a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years. His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.The writer's purpose of writing this article is to advise people___________.A:to buy mobile phonesB:to stop using mobile phonesC:to update regular phonesD:to use mobile phones less often
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Cell PhonesI Believe it or not,cell phones have been around for over a quarter of a century.The first commercial cell phone systemfl was developed by the Japancoc in I 979.But cell phones have changed a lotsince that time.The early cell phones were big and heavy but they have developed into small and light palm-sized mod- els.There have been huge (lcveloprnents in their functions,too;we have had call forwarding,text messaging, answering services and hands-free use for years,but now there are countless new facilities,su,ch as instant ac- cess to the Internet and receiving and sending photos.2 Cell phones have become very common in our lives;recent statistics suggest as many as one in three people cii the planet now have a cell phone,and most of them say they couldn't live without one.Cell phones are used in every area of our lives and have become a necessary tool,used for essential arrangements,socialcontact and business.They have made it easier to call for help on the highway.They have made it possible tokeep in touch with people"on the move”一when people are traveling.3 Cell phones have made communication easier and have reduced the need for family arguments.Wecan use cell phones to let our family know we'11 be late or if there’。a sudden change of tian or an emergen- cy.Cell phones have eased the worries of millions of parents when their teenagers are out late,they can nowcontact their children at any time.4 This does not mean that cell phones are all good news.They have brought with them a number of new headaches for their owners;it costs a lot to replace stolen phones,something that is becoming a frequent occurrence,and have you ever seen such huge phone bills? More serious,however,is the potential healthproblem they bring:there are fears that radiation from the phones may cause brain tumor（肿瘤）.This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can'tlive without!Paragraph 3________A:Cell Phones and the FamilyB:Commercial Cell Phone SystemsC:Cell Phones in Everyday LifeD:Cell Phones for TeenagersE:History of Cell PhonesF:Problems with Cell Phones
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Cell PhonesI Believe it or not,cell phones have been around for over a quarter of a century.The first commercial cell phone systemfl was developed by the Japancoc in I 979.But cell phones have changed a lotsince that time.The early cell phones were big and heavy but they have developed into small and light palm-sized mod- els.There have been huge (lcveloprnents in their functions,too;we have had call forwarding,text messaging, answering services and hands-free use for years,but now there are countless new facilities,su,ch as instant ac- cess to the Internet and receiving and sending photos.2 Cell phones have become very common in our lives;recent statistics suggest as many as one in three people cii the planet now have a cell phone,and most of them say they couldn't live without one.Cell phones are used in every area of our lives and have become a necessary tool,used for essential arrangements,socialcontact and business.They have made it easier to call for help on the highway.They have made it possible tokeep in touch with people"on the move”一when people are traveling.3 Cell phones have made communication easier and have reduced the need for family arguments.Wecan use cell phones to let our family know we'11 be late or if there’。a sudden change of tian or an emergen- cy.Cell phones have eased the worries of millions of parents when their teenagers are out late,they can nowcontact their children at any time.4 This does not mean that cell phones are all good news.They have brought with them a number of new headaches for their owners;it costs a lot to replace stolen phones,something that is becoming a frequent occurrence,and have you ever seen such huge phone bills? More serious,however,is the potential healthproblem they bring:there are fears that radiation from the phones may cause brain tumor（肿瘤）.This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can'tlive without!Cell phones are common in our lives and have become_________.A:a necessityB:an emergencyC:a number of new hcadachesD:family argumentsF:big and light palm-sized models F:countless new facilities
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Cell PhonesI Believe it or not,cell phones have been around for over a quarter of a century.The first commercial cell phone systemfl was developed by the Japancoc in I 979.But cell phones have changed a lotsince that time.The early cell phones were big and heavy but they have developed into small and light palm-sized mod- els.There have been huge (lcveloprnents in their functions,too;we have had call forwarding,text messaging, answering services and hands-free use for years,but now there are countless new facilities,su,ch as instant ac- cess to the Internet and receiving and sending photos.2 Cell phones have become very common in our lives;recent statistics suggest as many as one in three people cii the planet now have a cell phone,and most of them say they couldn't live without one.Cell phones are used in every area of our lives and have become a necessary tool,used for essential arrangements,socialcontact and business.They have made it easier to call for help on the highway.They have made it possible tokeep in touch with people"on the move”一when people are traveling.3 Cell phones have made communication easier and have reduced the need for family arguments.Wecan use cell phones to let our family know we'11 be late or if there’。a sudden change of tian or an emergen- cy.Cell phones have eased the worries of millions of parents when their teenagers are out late,they can nowcontact their children at any time.4 This does not mean that cell phones are all good news.They have brought with them a number of new headaches for their owners;it costs a lot to replace stolen phones,something that is becoming a frequent occurrence,and have you ever seen such huge phone bills? More serious,however,is the potential healthproblem they bring:there are fears that radiation from the phones may cause brain tumor（肿瘤）.This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can'tlive without!Nowadays cell phones are equipped with_______.A:a necessityB:an emergencyC:a number of new hcadachesD:family argumentsF:big and light palm-sized models F:countless new facilities
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第一篇Cell Phones: Hang Up or Keep Talking?Millions of people are using cell phones today,In many places it is actually considered unusual not to use one.In many countries,cell phones are very popular with Young people.They find that the phones aremore than a means of communication一having a mobile phone shows that they are cool and connected.The explosions around the world in mobile phone use make some health professionals worried.Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones.In England,there has been a serious debate about this issue.Mobile phone companies are worried about the negative publicity of such ideas.They say that there is no proof that mobile phones are bad for your health.On the other hand,why do some medical studies show changes in the brain cells of some people who use mobile phones?Signs of change in the tissues of the brain and head can be detected with modern scanning （扫描）equipment. In one case , a traveling salesman had to retire at a young age because of serious memory loss.He couldn't remember even simple tasks.He would often forget the name of his own son.This man used to talk on his mobile phone for about six hours a day,every day of his working week,for a couple of years.His family doctor blamed his mobile phone use,but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful?The answer is radiation.High-tech machines can detect very small amounts of radiation from mobile phones.Mobile phone companies agree that there is some radiation,but they say the amount is too small to worry about.As the discussion about their safety continues,it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time.Use your mnobile phone only when you really need it.Mobile phones can be very useful and convenient,especially in emergencies.In the future,mobile phones may have a warning label that says they are bad for your health.So for now,it's wise not to use your mobile phone too often.People buy cell phones for the following reasons EXCEPT that________.A:they're popular B:they're cheapC:they're useful D:they're convenient
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Which of the following security policies is BEST to use when trying to mitigate the risks involved with allowing a user to access company email via their cell phone？（）A、The cell phone should require a password after a set period of inactivity.B、The cell phone should only be used for company related emails.C、The cell phone data should be encrypted according to NIST standards.D、The cell phone should have data connection abilities disabled.
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单选题According to the passage, cell phones were launched _____.A
in the late 1970sB
between 1980 and 1985C
in the late 1980sD
in the early 1990s
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单选题Which of the following security policies is BEST to use when trying to mitigate the risks involved with allowing a user to access company email via their cell phone？（）A
The cell phone should require a password after a set period of inactivity.B
The cell phone should only be used for company related emails.C
The cell phone data should be encrypted according to NIST standards.D
The cell phone should have data connection abilities disabled.
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单选题You have to read the manual carefully first, otherwise you ______ have difficulty using the cell phone.A
shouldB
willC
mightD
may
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问答题Critics of the ban say cell phones are important safety devices for kids during an emergency.
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单选题According to the passage, which of the following statements is TRUE?A
After the cell-phone ban is ended, students can use their phones during class.B
The cell-phone ban is equally enforced in all public schools.C
The cell-phone ban was put into place in 2008 under mayor Bill de Blasio.D
A phone-storage industry has appeared outside the 88 metal-detector campuses.
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单选题Which of the following is the main idea of the passage?A
New York City will give financial aid to poor students.B
New York City plans to restrict cell phone use in libraries.C
New York City plans to install metal detectors in all public schools.D
New York City will soon end a ban on cell phones in schools.
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单选题Bill can inspect a case of cell phones in 6 hours. Jack can inspect the same case of cell Phones in 4 hours. After working alone for l hour, Bill stops for lunch. After taking a 30-minute lunch break. Bill and Jack work together to inspect the remaining cell phones. How long do Bill and Jack work together to complete the job?A
1 hr. and l2 minB
1 hr. and 24 minC
2 hrsD
2 hrs and lo minE
2 hrs and 20 min
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