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单选题
Although doctors have been thus far successful at ______ the spread of tuberculosis in the United States, they are nonetheless concerned that ______ strains of the disease may yet arise.
A
marginalizing, innocuous
B
controlling, virulent
C
obscuring, indifferent
D
imperiling, responsive
E
dismissing, required
参考答案
参考解析
解析：
对医生来说，减缓或防止疾病传播是成功的事。然而他们担忧危险的压力可能出现。marginalize“使不相关”。innocuous“无害的”。virulent意为“危险的”。obscure“掩盖”。indifferent“漠不关心的”。imperil“危及，使陷入危险”。故选B。
对医生来说，减缓或防止疾病传播是成功的事。然而他们担忧危险的压力可能出现。marginalize“使不相关”。innocuous“无害的”。virulent意为“危险的”。obscure“掩盖”。indifferent“漠不关心的”。imperil“危及，使陷入危险”。故选B。
更多 “单选题Although doctors have been thus far successful at ______ the spread of tuberculosis in the United States, they are nonetheless concerned that ______ strains of the disease may yet arise.A marginalizing, innocuousB controlling, virulentC obscuring, indifferentD imperiling, responsiveE dismissing, required” 相关考题
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The United States is a major consumer of coffee, yet it does not have the climate to grow any () its own.
A.onB.forC.ofD.to
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Passage TwoQuestions 26 to 30 are based on the following passage.Scientists have established that influenza viruses taken from man can cause the disease in animals. In addition，man can catch the disease from animals. In fact，a great number of wild birds seem to carry the virus without showing any evidence of illness. Some scientists conclude that a large family of influenza viruses may have evolved in the bird kingdom，a group that has been on the earth 100 million years and is able to carry the virus without contracting the disease. These are even convincing evidence to show that virus strains are transmitted from place to place and from continent to continent by migrating birds.It is known that two influenza viruses can recombine when both are present in an animal at the same time. The result of such recombinations is a great variety of strains constraining different H and N spikes. This raises the possibility that a human influenza virus can recombine with an influenza virus form. a lower animal to produce an entirely new spike.Research is underway to determine if that is the way that major new strains come into being. Another possibility is that two animal influenza strains may recombine in a pig，for example，to produce a new strain which is transmitted to man.According to the passage，scientists have discovered that influenza viruses______.A. cause ill health in wild birdsB. do not always cause symptoms in birdsC. are rarely present in wild birdsD. change when transferred from animals to man
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Working hours in the United States ____________over the past 20 years.A. have increasedB. increasedC. were increasingD. have been increased
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In the United States have announced plans to dismiss almost eighty thousand workers, however, the businesses dependent on the airline industry have not been harmed.()
此题为判断题(对，错)。
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(50)We are thus led to distinguish, within the broad educational process which we have been so far considering, a more formal kind of education—that of direct tuition or schooling. 此处译文为:
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Although goods have been lost or damaged whilst in the custody of the Shipowner，______ not necessarily responsible，for his liability in respect of them may have been excluded by the rules of common law or by the express terms of the contract or by statute．A.she isB.he isC.they areD.it is
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It should be noted that laydays do not begin to run ______ the ship is，so far as she is concerned，ready to receive or discharge cargo，unless she would have been ready except for the Charterer's default．A.whenB.at the time thatC.untilD.as soon as
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In spite of all stories of prosperity in the United States, not only does poverty exist there, but crimes of various types have been increasing at an alarming rate． Most acts of violence were committed by young people． 57% of the criminals arrested in 1979 were youths below 25 of age．
Everyone agrees that crime is partly a result of bad material conditions: poverty, lack of education,living without a settled home,being parentless,sufferings from other kinds of misfortune, etc．
There are also other factors than material conditions which are responsible for the sharp increase of crime rate． In the first place, some state laws provide a death penalty but some not．Secondly, the Constitution allows every citizen to carry weapons for his own protection． It is therefore possible and easy for anyone in the country to get a gun． Finally, there has been too much shown on TV and too much reported in newspaper of all kinds of crime, the details of which are so accurately described that even children know how to duplicate what they have seen or read．
All these have resulted in a high frequency of crimes committed both by professional criminals and by nonprofessional ones in murder, drug smuggling, robbery, etc．
?The author intends to tell the readers that__________．A.the United States is a wealthy country although poverty and crime exist there
B.crime has become a serious problem in the United States, although it is said to be a prosperous one
C.despite the fact that crimes have been increasing rapidly in the United States, it is a country of prosperity
D.in spite of stories about poverty and crime in the United States, it is prospering at an increasing rate
考题
In spite of all stories of prosperity in the Unites States, not only does poverty exist there, but crimes of various types have been increasing at an alarming rate. Most acts of violence were committed by young people.57% of the criminals arrested in 1979 were youths below 25 of age.
Everyone agrees that crime is partly a result of bad material conditions: poverty, lack of education, living within a settled home, being parent less, sufferings from other kinds of misfortune, etc.
There are also other factors than material conditions which are responsible for the sharp increase of crime rate. In the first place, some state laws provide a death penalty but some not. Secondly, the Constitution allows every citizen to carry weapons for his own protection. It is therefore possible and easy for anyone in the country to get a gun. Finally, there has been too much shown on TV and too much reported in newspaper of all kinds of crime, the details of which are so accurately described that even children know how to duplicate what they have seen or read. All these have resulted in a high frequency of crimes committed both by professional criminals and
by nonprofessional ones in murder, drug smuggling, robbery, etc.
The author intends to tell the readers that_________.A. the United States is a wealthy country although poverty and crime exist there
B. crime has become a serious problem in the United States, although it is said to be a prosperous one
C. despite the fact that crimes have been increasing rapidly in the United States, it is a country of prosperity
D. in spite of stories about poverty and crime in the United States, it is prospering at an increasing r
考题
根据下列内容，回答186-190题。
In spite of all stories of prosperity in the Unites States，not only does poverty exist there，but cnmes ot vanous types have been increasing at an alarming rate．Most acts of violence were com-mitted by young people．57%of the criminals arrested in 1979 were youths below 250f age．
Everyone agrees that crime is partly a resuh of bad material conditions：poveftv。lack of edu-cation，living within a settled home，being parentless，sufferings from other kinds of misfortune．etc．
There are also other factors than material conditions which are responsible for the sharp in．crease of crime rate in the first place，some state laws provide a death penaltv but some not．Sec．ondly，the Constitution allows every citizen to carry weapons for his own protection．It is therefore possible and easy for anyone in the country to get a gun．Finally，there has been too much shown on TV and too much reported in newspaper of all kinds of crime，the details of which are so accu．rately described that even children know how to duplicate what they have seen or read．All these
have resulted in a high frequency of crimes committed both by professional criminals and by non．professional ones in murder，drug smuggling，robbery，etc．
The author intends to tell the readers that．A.the United States is a wealthy country although poverty and crime exist there
B.crime has become a serious problem in the United States，although it is said to be a pros-perous one
C.despite the fact that crimes have been increasing rapidly in the United States，it is a coun-try of prosperity
D.in spite of stories about poverty and crime in the United States，it is prospering at an in-creasing rate
考题
共用题干
Natural MedicinesSince earliest days,humans have used some kinds of medicines.We know this because hu-mans have survived .Ancient treatments for injury and disease were successful enough to keep hu-mans from dying out completely.They were successful long before the time of modern medicine.Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.Many parts of the world still do not have university-educated doctors.Nor do they have ex- pensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient meth- ods. By medicines that might seem mysterious, even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.Through the centuries, tribal（部落的）medicine men experimented with plants. They found many useful chemicals in the plants.And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.Experts say almost 80%of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment.They are used be-cause people trust them.In developed areas,few people think about the source of the medicines they buy in a store.Yet many widely-used medicines are from ancient sources,especially plants. Some experts say more than 25%of modern medicines come,in one way or another,from nature.Scientists have long known that nature is really a chemical factory.All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly. The passage indicates that ancient treatments for injury and disease were_____.A: much more successful than modern onesB: successful enough for humans to surviveC: successful in all casesD: of little help to humans
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There have been（）periods in the development of American political parties in the United States.AfourBthreeCfiveDtwo
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There have been（）periods in the development of American political parties in the United States.A、fourB、threeC、fiveD、two
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单选题There have been（）periods in the development of American political parties in the United States.A
fourB
threeC
fiveD
two
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单选题Hoof-and-mouth disease was eliminated in the United States by slaughtering affected herds of cattle.A
isolatingB
testingC
vaccinatingD
killing
考题
单选题The passage warns of which of the following dangers?A
Companies in the United States may receive no protection from imports unless they actively seek protection from import competition.B
Companies that seek legal protection from import competition may incur legal costs that far exceed any possible gain.C
Companies that are United States owned but operate internationally may not be eligible for protection from import competition under the laws of the countries in which their plants operate.D
Companies that are not United States owned may seek legal protection from import competition under United States import relief laws.
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单选题Although goods have been lost or damaged whilst in the custody of the Shipowner，（）not necessarily responsible，for his liability in respect of them may have been excluded by the rules of common law or by the express terms of the contract or by statute.A
she isB
he isC
they areD
it is
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单选题The author is worried about the fact that _____A
children may imitate what they have seen or read about crimeB
the more prosperous the United States is, the higher the crime rate becomesC
citizens carrying guns will be punishedD
all the state laws will be punished
考题
判断题Mortality rates from heart disease and strokes in the United States have fallen in the last three decades.A
对B
错
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单选题Which of the following would be the best title for this passage?A
Types of Doctors in the United StatesB
Health Care in the United States and BritainC
Treatment of Sick Children in the United StatesD
Medical Insurance in the United States and Britain
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单选题John F. Kennedy was _____ youngest President of the United States and _____ to be murdered. Can you remember how long he _____ the country before his death?A
the; the fourth; had been rulingB
/; fourth; have been rulingC
the; fourth; was rulingD
a; the four; ruled
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单选题（）so many people in the United States been out of work as today.A
More than ever beforeB
In the past, there have neverC
Never before haveD
Formerly, there never were
考题
单选题The passage is chiefly concerned with _____.A
arguing against the increased internationalization of United States corporationsB
warning that the application of laws affecting trade frequently has unintended consequencesC
demonstrating that foreign-based firms receive more subsidies from their governments than United States firms receive from the United States governmentD
advocating the use of trade restrictions for “dumped” products but not for other imports
考题
问答题Scientists hope that a remote lake on a dormant Chilean volcano can provide clues to what life may have been like in a far more distant place—the planet Mars.A 10-member team placed special plates in the lake on Licancabur volcano, at an altitude of 20,000 feet，on Sunday to measure the effects of ultraviolet light on organisms living there.The scientists, mostly from the United States, think learning how Licancabur organisms protect themselves may help researchers understand how life survived on early Earth and perhaps on early Mars as well.The damaging effects of UV radiation intensify at altitude and the air is very thin. And the lake is covered with ice most of the year, as would have been bodies of water on Mars.“If there was life on Mars 3.5 billion years ago, it could have used defense mechanisms similar to those used by the organisms at Licancabur volcano to survive,” said team leader Nathalie Cabrol.
考题
单选题The author intends to tell the readers that _____.A
the United States is a wealthy country although poverty and crime exist thereB
crime has become a serious problem in the United States, although it is said to be a prosperous oneC
despite the fact that crimes have been increasing rapidly in the United States, it is a country of prosperityD
in spite of stories about poverty and crime in the United States, it is prospering at an increasing rate
考题
单选题According to the passage, the International Trade Commission is involved in which of the following?A
Investigating allegations of unfair import competitionB
Granting subsidies to companies in the United States that have been injured by import competitionC
Recommending legislation to ensure fair tradeD
Identifying international corporations that wish to build plants in the United States
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