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On hearing a great noise, Mike looked forward through the window （）what happened outside the room．
- A、to seeing
- B、to see
- C、seeing
- D、to have seen
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更多 “On hearing a great noise, Mike looked forward through the window （）what happened outside the room．A、to seeingB、to seeC、seeingD、to have seen” 相关考题
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—Great. Let me introduce you to my new classmate Helen. Helen, this is my friend Mike.—_______________.
A. GoodB. FineC. Nice to meet youD. It ‟s my pleasure
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Dialogue one Tom: Do you go to college?Mike: Yes. __1__Tom: What college do you go to?Mike: I go to Pasadena City College.Tom: Do you like it?Mike: Oh, yes. __2__Tom: why do you like it?Mike: Because it has great teachers.Tom: __3__Mike: I like all my classmates, too.Tom: Anything else? Mike: Yes. __4__A. It’s not expensive!B. You bet.C. I think I do.D. what else?1______2______3______4______请帮忙给出每个问题的正确答案和分析，谢谢！
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29． Which one is wrong?A． Mike always puts his things away．B． Tom can mend the kite．C．Mike is not a careful boy．D． Mike's shoes are worn out
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－Hi, Lily, what’s up with Mike I heard the boss yelling at Mike earlier today. －()
A、It is better to tell someone to get it fixed.B、He was so scared.C、It’s said that Mike made a mistake and then tried to cover it up.
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____________, they immediately left the house.A、Being heard the noiseB、Hearing the noiseC、They heard the noiseD、They were hearing the noise
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听第8段材料，回答第10至l2题。l0 Who is making the telephone call?A Thomas BrothersB Mike LandonC Jack Cooper．
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There was so much noise that the speaker couldn‘t make himself ________. A. hear B. heard C. hearing D. to hear
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共用题干
Can Loud Music Cause Hearing Impairment（损伤）?Have you ever gone to a concert and realized that your seats were right next to thebooming speakers?Are you guilty_________(1)turning up the volume on your portablecassette or CD player to drown out the whining（哭哭啼啼）of your little brother? Sometimes it's difficult to avoid loud music or noises,but they can be bad news because loud noises can_________(2)temporary or permanent hearing loss.Extremely loud music and noises that go on for long periods of_______(3)are common causes of deafness.If a noise is so loud that you have to shout to make yourself_______(4),there is a______(5)that the mechanism inside your ear can beinjured.Temporary hearing loss can happen after you've been_______(6)to loud noise for only 15 minutes.If you have temporary hearing loss,you won't be able to hear as________ (7) as you normally can, and you may have tinnitus（耳鸣）,which is afancy word for ringing in the ears. Your ears can feel"full",too._________（8),these things usually go away and your hearing soon returns to normal.Permanent hearing loss can happen when someone is exposed to loud noise ________(9)and over. Construction workers and people who work in factories must ________(10)ear protectors because the equipment they use can be extremely loud. But even some lawn mowers（割草机）and power tools can permanently__________ (11)a person's ability to hear high-pitched noises and can also give him permanent tinnitus. Listening to extremely loud music over and over can also have the same effect on a person's ______(12).And using headphones on a portable cassette or CD player can be dangerous________(13)if the volume is too high and the headphones are used a lot, the noise can damage the ears.The best way to avoid hearing loss is to wear ear protectors when working with machinery and earplugs when going to a_________(14).Headphones are OK to wear when you're listening to music;just be sure the volume isn't too high,and give them a rest________(15)once in a while._________(8.)A: Unfortunately B: Accordingly C: Luckily D: Unexpectedly
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共用题干
Can Loud Music Cause Hearing Impairment（损伤）?Have you ever gone to a concert and realized that your seats were right next to thebooming speakers?Are you guilty_________(1)turning up the volume on your portablecassette or CD player to drown out the whining（哭哭啼啼）of your little brother? Sometimes it's difficult to avoid loud music or noises,but they can be bad news because loud noises can_________(2)temporary or permanent hearing loss.Extremely loud music and noises that go on for long periods of_______(3)are common causes of deafness.If a noise is so loud that you have to shout to make yourself_______(4),there is a______(5)that the mechanism inside your ear can beinjured.Temporary hearing loss can happen after you've been_______(6)to loud noise for only 15 minutes.If you have temporary hearing loss,you won't be able to hear as________ (7) as you normally can, and you may have tinnitus（耳鸣）,which is afancy word for ringing in the ears. Your ears can feel"full",too._________（8),these things usually go away and your hearing soon returns to normal.Permanent hearing loss can happen when someone is exposed to loud noise ________(9)and over. Construction workers and people who work in factories must ________(10)ear protectors because the equipment they use can be extremely loud. But even some lawn mowers（割草机）and power tools can permanently__________ (11)a person's ability to hear high-pitched noises and can also give him permanent tinnitus. Listening to extremely loud music over and over can also have the same effect on a person's ______(12).And using headphones on a portable cassette or CD player can be dangerous________(13)if the volume is too high and the headphones are used a lot, the noise can damage the ears.The best way to avoid hearing loss is to wear ear protectors when working with machinery and earplugs when going to a_________(14).Headphones are OK to wear when you're listening to music;just be sure the volume isn't too high,and give them a rest________(15)once in a while._________(12) A:scope B:attitude C:survey D:hearing
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共用题干
Just one hour's listening to an MP3 player can damage hearing,claim scientists.It causes temporary changes in hearing sensitivity which may lead to long-term harm,according to a new study.The findings show over -stimulation of hair cells within the ear occurs even at varying volume levels for short periods of time.The study of almost 60 young people carried out by researchers at Ghent University,Belgium,is published in the Archives of Otolaryngology -Head&Neck Surgery journal.It follows previous warnings from doctors that using MP3 players at high volumes with earphones that fit into the ear canal could lead to loss of hearing. In the latest study,21 people aged 19 to 28 years were exposed to pop and rock music using MP3 players at varying volumes for one hour. A second group of 28 men and women were a control group who were not exposed to MP3 music.Hearing tests were carried out before and after the exposure,which found significant threshold or emission shifts were observed between almost every session of the noise exposure group compared with the control group.Lead researcher Hannah Kempler said:Excessive noise exposure can lead to metabolic and mechanical effects resulting in alterations of the structural elements of the inner ear that contains auditory sensory cells or"hair cells".The European Commission has warned up to 10% of 30-year-old would have to wear a hearing device within the next decade because they listen to music too loudly through headphones.Surveys showed more than 90% of young people in Europe and the U.S.used MP3 players,often for several hours a day at maximum volume.Hearing experts recommend the 60/60 rule一listening to MP3 players for no more than 60 minutes at a time at 60% of maximum volume.Concern among EU health and safety officials has led to plan to ensure all MP3 players have the same maximum volume of 85 decibels(dB)一although users may be able to individually override it at their own risk. MP3 player can't damage hearing when one listens to MP3 music for only 60 minutes.A:Right B:Wrong C: Not mentioned
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Life gets noisier every day and very few people can free from noise of some sort or another.It doesn′t matter where you live--in the middle of a modem city,or a faraway village--the chances that you will be disturbed by jet aero planes,transistor radios,oil powered engines,etc.,are almost everywhere.We seem to be getting used to noise,too.Some people feel quite lonely without background music while they are working.
Scientific tests have shown that total silence can be very frightening experience for human beings.However,some people enjoy listening to pop music which is very loud,and this can do harm to their eardrums（耳鼓）.The noise level in some disco is far above the usual safety level for heavy industrial areas.
One recent report about noise and concentration（专心）suggested that although a lot of people say that any noise disturbs their concentration,what really affects their ability to concentrate is a change in the level of noise.It goes on to say that a background noise,which doesn′t change too much（music,for example）may even help people to concentrate.
Some people may have their hearing hurtA.while they are in complete silence
B.while they are dancing violently
C.while they are listening to pop music
D.while they are listening to soft music
考题
Life gets noisier every day and very few people can free from noise of some sort or another.It doesn′t matter where you live--in the middle of a modem city,or a faraway village--the chances that you will be disturbed by jet aero planes,transistor radios,oil powered engines,etc.,are almost everywhere.We seem to be getting used to noise,too.Some people feel quite lonely without background music while they are working.
Scientific tests have shown that total silence can be very frightening experience for human beings.However,some people enjoy listening to pop music which is very loud,and this can do harm to their eardrums（耳鼓）.The noise level in some disco is far above the usual safety level for heavy industrial areas.
One recent report about noise and concentration（专心）suggested that although a lot of people say that any noise disturbs their concentration,what really affects their ability to concentrate is a change in the level of noise.It goes on to say that a background noise,which doesn′t change too much（music,for example）may even help people to concentrate.
Scientists have discovered that what prevents people from concentrating isA.any kind of noise
B.great changes in level of noise
C.background,noise
D.various background music
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In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）A、the signal to noise of the current optical amplifierB、the signal to noise of the previous amplifier or sourceC、the signal to noise introduced by the optical multiplexerD、the accumulated noise to signal ratio of the optical channel
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Which signal and noise values will result in the best phone communication with an access point？（）A、 Signal strength 0dBm， noise level 6dBmB、 Signal strength 8dBm， noise level 9dBmC、 Signal strength 4 dBm， noise level 4 dBmD、 Signal strength 6dBm， noise level 5 dBm
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Which signal and noise values will result in the best phone communication with an access point?（）A、signal strength 46dBm, noise level 95dBmB、signal strength 74dBm, noise level 94dBmC、signal strength 68dBm, noise level 79dBmD、signal strength 50dBm, noise level 56dBm
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单选题Jean: Mike, I’m exhausted. How much further is it? Mike: Not far, I promise. Jean: ______ Mike: Oh, come on, Jean.A
That’s great. B
But you said that half an hour ago.C
Let’s quicken our pace.D
Now, I’m as energetic as you.
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单选题On hearing a great noise, Mike looked forward through the window （）what happened outside the room．A
to seeingB
to seeC
seeingD
to have seen
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单选题Nancy had a great deal of trouble to concentrate on her work because of the noise in the next roomA
a great deal ofB
to concentrate onC
because ofD
in
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单选题Hearing a strong noise, （） at once.A
the engine stoppedB
the engine was stoppedC
he stopped the engineD
he had stopped the engine
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单选题A
Her great-grandfather died during a major epidemic.B
Her great-grandfather worked in the field of public health.C
Her great-grandfather was affected by the 1918 epidemic.D
Her great-grandfather was a soldier in World War l.
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单选题In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（）A
the signal to noise of the current optical amplifierB
the signal to noise of the previous amplifier or sourceC
the signal to noise introduced by the optical multiplexerD
the accumulated noise to signal ratio of the optical channel
考题
单选题以下是一些C#中的枚举型的定义，其中错误的用法有（）。A
public enum var1{Mike=100，Nike=102，Jike}B
public enum var1{Mike=100，Nike，Jike}C
public enum var1{Mike=-1，Nike，Jike}D
public enum var1{Mike，Nike，Jike}
考题
多选题以下是一些C#中的枚举型的定义，其中错误的用法有（）。Apublicenumintvar1{Mike=100，Nike=102，Jike}Bpublicenumvar1：int{Mike=100，Nike，Jike}Cpublicenumintvar1{Mike Nike=102，Jike}Dpublicenumvar1：long{Mike，Nike，Jike}
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单选题In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）A
the signal to noise of the current optical amplifierB
the signal to noise of the previous amplifier or sourceC
the signal to noise introduced by the optical multiplexerD
the accumulated noise to signal ratio of the optical channel
考题
单选题Hearing a（）noise in the backyard, Pamela went there to have a look.A
crackingB
crackC
crackedD
cracker
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