题目内容
（请给出正确答案）
______ scientists have observed increased pollution in the water supply.
A．Late
B．Later
C．Latter
D．Lately
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更多“______ scientists have observe…”相关的问题
What did scientists think was true？
A．Each person has a fixed weight range.
B．Each person has a weight range of 9 kg.
C．Each person wants to control his weight.
D．Each person wants to eat to his heart's content.
(36)
A．Because he died 5000 years ago in the mountain.
B．Because scientists found an arrowhead under his shoulder.
C．Because he was killed in a fall while hunting animals.
D．Because his body was discovered in an area between two high mountains.
Scientists don't know why this happens. They used to think that we inherited (继承) this tendency from our animal ancestors (祖先), but this may not be true. Monkeys are our closest relatives in the animal world. Scientists have found that monkeys prefer to use one of their hands more than the other, but it can be either hand. There are as many right - handed monkeys as there are left - handed ones. Next time you visit the zoo, watch the monkeys carefully. You' 11 see that some of them will prefer to swing from their right hands, and others will use their left hands. But most human beings use their right hands better, and this makes life difficult for those who prefer to use their left hands.
Most of us use our right hands ______ the left ones.
A．as well as
B．not so well as
C．much better than
D．more better than
Questions 6 to 10 are based on the following passage:Nonverbal (非语言的) communication has to do with gestures, movements and closeness of two people when they are talking. (77) The scientists say that those gestures, movements and so on have meaning which words do not carry.
For example, the body distance between two speakers can be important. North Americans often complain that South Americans are unfriendly because they tend to stand close to the North American when speaking, while the South American often considers the NorthAmerican to be "cold" or "distant" because he keeps a greater distance between himself and the person he is speaking to. The "eye contact" provides another example of what we are calling nonverbal communication. Scientists have observed that there is more eye contact between people who like each other than there is between people who don't like each other. (78) The length of time that the person whom you are speaking to looks at your eyes indicates the amount of interest he has in the things you are talking about.
On the other hand, too long a gaze can make people uncomfortable. The eyes apparently play a great part in nonverbal communication. Genuine warmth or interest, shyness or confidence can often be seen in the eyes. We do not always consider a smile to be a sign of friendliness. Someone who is always smiling, and with little apparent reasons, often makes us uneasy.
第6题：According to the passage, nonverbal communication__________.
A. is a method often used by people who cannot speak
B. can tell something that words cannot
C. can be used to talk with people who cannot bear
D. is less used than words
In such circumstances no one should be too hard on people who are suspicious of conflicts of interest． When we learn that the distinguished professor assuring us of the safety of a particular product holds a consultancy with the company making it，we cannot be blamed for wondering whether his fee might conceivably cloud his professional judgment． Even if the professor holds no consultancy with any firm，some people many still distrust him because of his association with those who do，or at least wonder about the source of some his research funding．
This attitude can have damaging effects． It questions the integrity of individuals working in a profession that prizes intellectual honesty as the supreme virtue，and plays into the hands of those who would like to discredit scientists by representing then a venal （可以收买的）． This makes it easier to dismiss all scientific pronouncements，but especially those made by the scientists who present themselves as ‘experts’． The scientist most likely to understand the safety of a nuclear reactor，for example，is a nuclear engineer declares that a reactor is unsafe，we believe him，because clearly it is not to his advantage to lie about it． If he tells us it is safe，on the other hand，we distrust him，because he may well be protecting the employer who pays his salary．
第31题：What is the chief concern of most governments when it comes to scientific research？
A．Support from the votes．
B．The reduction of public expenditure．
C．Quick economics returns．
D．The budget for a research project．
SECTION B PASSAGES
Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.
听力原文： Many people know the story of Noah’s ark. The three major world religions believe that God told a man named Noah to flu a boat with two animals from every species on Earth. According to the Bible, Noah was protecting the animals from a great flood.
There are a lot of stories about the final resting place of Noah’s ark. Many historians think that Noah’s ark came to rest on the top of Mount Ararat in Turkey. At 17,000 feet (5,165 meters), Mount Ararat is the highest point in this area.
A group of scientists and historians believe that they have actually found the ark using satellite pictures. They have al so planned a trip to the top of Mount Ararat. "We' re telling people we' re 98 percent sure, "Daniel McGivern of the Ha waii Christian Coalition said. "In one image we saw the beams, the wood."
Not everyone is convinced that Noah’s ark has been found. "We think that, with the hundreds of explorers who have visited the region, if the ark was jutting out of the ice, it would be obvious, "said Rex Geissler, president of ArcImagining, an organization that has surveyed Mount Ararat.
How high is Mount Ararat in Turkey？
A．Above 6,515 meters.
B．Less than 6,515 meters.
C．About 17,000 meters.
D．Less than 17,000 meters.
听力原文：M: Professor, bow's Chinese Americans' situation today？
F: There are fewer than half a million, only a small fraction of the U.S. population, living chiefly in California, New York, and Hawaii. But they are generally admired for their many remarkable characteristics, and are often held up as an example worth following.
M: When, then, did things begin to change？
F: It was during World War II, when China was an ally of the United States. The Exclusion laws were ended; in 1965, in a general revision of the immigration laws, many more Chinese were permitted to settle here, as discrimination against immigration was abolished.
M: But it seemed that the Chinese had lived apart in their own separate neighborhoods, which came to be known as "Chinatowns".
F: Right. And in each of them the residents organized an unofficial government to make rules for the community and to settle disputes. To this day, certain Chinatowns, especially those of Francisco and New York, are busy, thriving communities.
M: Professor, there are two facts about the Chinese Americans: one is that there is so little juvenile delinquency among them; the other is that there are so many outstanding scholars, scientists, and artists out of their uneducated laborers ancestors. How can we explain these？
F: Well, we may owe little juvenile delinquency to their retaining many aspects of their ancient culture. For example, their family ties continue to be remarkably strong. Even young children cherish the old values and attitudes, including respect for their elders and a feeling of responsibility to the family. Secondly, the high regard for education which is deeply imbedded in Chinese culture, and the willingness to work very hard to gain advancement, are other noteworthy characteristics of theirs. This explains why so many descendants of laborers have succeeded in becoming doctors, lawyers, and other professionals.
How many Chinese Americans are there in the U.S. today？
A．Less than 500,000.
B．More than 500,000.
C．Less than 5,000,000.
D．More than 5,000,000,
听力原文：M: Professor, how's Chinese Americans' situation today？
F: There are fewer than half a million, only a small fraction of the U.S. population, living chiefly in California, New York, and Hawaii. But they are generally admired for their many remarkable characteristics, and are often held up as an example worth following.
M: When, then, did things begin to change？
F: It was during World War II, when China was an ally of the United States. The Exclusion laws were ended; in 1965, in a general revision of the immigration laws, many more Chinese were permitted to settle here, as discrimination against immigration was abolished.
M: But it seemed that the Chinese had lived apart in their own separate neighborhoods, which came to be known as" China- towns",
F: Right. And in each of them the residents organized an unofficial government to make rules for the community and to settle disputes. To this day, certain China-towns, especially those of Francisco and New York, are busy, thriving communities,
M: Professor, there are two facts about the Chinese Americans; one is that there is so little juvenile delinquency among them; the other is that there are so many outstanding scholars, scientists, and artists out of their uneducated laborers ancestors. How can we explain these？
F: Well, we may owe little juvenile delinquency to their retaining many aspects of ancient culture. For example, their family ties continue to be remarkably strong. Even young children cherish the old values and attitudes, including respect for their elders and a feeling of responsibility to the family. Secondly, the high regard for education which is deeply imbedded in Chinese culture, and the willingness to work very hard to gain advancement, are other noteworthy characteristics of theirs. This explains why so many descendants of laborers have succeeded in becoming doctors, lawyers, or other professionals.
How many Chinese Americans are there in the U.S. today？
A．Less than 500,000.
B．More than 500,000.
C．Less than 5,000,000.
D．More than 5,000,000.
请阅读Passage 2，完成第小题。
Millions of Americans lie awake at night counting sheep， or have a stiff drink or pop an allergy pill， hoping it will make them drowsy. But experts agree all that seff-medicating is a bad idea， and the causes of chronic insomnia remain mysterious.
Almost a third of adults have trouble sleeping， and about 10 percent have symptoms of daytime impairment that signal true insomnia. Sufferers readily cite the resulting problems: walking around in a fog， as memory and cognitive functions becoming slow. Dozing off at the wheel or at work. Depression. Lack of energy. But for all the complaints， scientists know surprisingly little about what causes chronic insomnia， its health consequences and how best to treat it， a panel of specialists brought together by the National Institutes of Health concluded Wednesday.
Two things are clear， the panel found: Chronic insomnia is a major public health problem. And too many people are using unproven therapies， even while there are a few treatments that do work.
Among the panel"s findings: Cognitive / behavioral therapy——a psychology-based treatment that trains people to reduce anxiety and take other sleep-promoting steps——is very effective， and doesn"t cause side effects. But it can be hard to find health providers trained in the techniques. Insomniacs should check with board-certified sleep specialists and psychologists.
Newer prescription sleep pills called Sonata， Ambien and Lunesta work without many of the side-effect concerns of older agents known as benzodiazepines （苯二氧类镇静药）. One study of Lunesta showed effectiveness with six months of use， but more research on long-term use of all three is needed， as chronic insomnia can linger for years.
The most commonly used treatments are alcohol and over-the-counter sedating antihistamines（抗组胺剂 ） like Benadryl. Alcohol use actually disrupts quality sleep， and antihistamines can cause lingering daytime sedation and other cognitive problems.
The most common prescription insomnia medicine is an older， sedating antidepressant called trazodone， even though there"s no good evidence that it offers more than a two-week benefit， and it comes with side effects.
One of the most effective ways to deal with choric insomnia is_________. 查看材料
A. to have a stiff drink
B. to pop an allergy pill
C. to sleep and get up early
D. cognitive / behavioral therapy
请根据短文内容，回答题。
Hurricanes （龙卷风）
(1) Did you know that before 1950, hurricanes had no names？ They were simply given numbers. The first names were simply Alpha, Bravo, Charlie, etc. but in 1953, female names were given because of the unpredictability (不可预知 ) factor of the storms. In 1979,realizing the sexist (性别歧视的)nature of such names, the lists were expanded to include both men and women.＜br＞
(2) Hurricanes and typhoons (台风 ) are the same things. If they form. in the Atlantic, we call these strong storms hurricanes, from the West Indian word hurricane, meaning "big wind". And if they are Pacific storms, they are called typhoons from the Chinese taifun, meaning "great wind". To be classified as a hurricane, the storm must have maximum winds of at least 75 mph.＜br＞
These storms are big, many hundreds of miles in diameter.＜br＞
(3) Hurricanes get their power from water vapor as it gives out its stored-up energy. All water vapor gives out heat as it condenses (凝结) from a gaseous state to a liquid state over fixed points on the equator(赤道). To make a hurricane, you must have extremely wet, warm air, the kind of air that can only be found in tropical region.＜br＞
(4)Scientists have determined that the heat given out in the process of water condensation can be as high as 95 billion kilowatts per hour. In just one day alone, the storm can produce more energy than many industrialized nations need in an entire year! The problem is that we don&39;t know how to make sure such great energy works for us.＜br＞
5.Predicting the path of a hurricane is one of the most difficult tasks for forecasters. It moves at a typical speed of 15 mph. But not always. Some storms may race at twice this speed, then suddenly stop and remain in the same location for several days. It can be maddening (发疯的 )if you live in a coastal area that may be hit.＜br＞
6.The biggest advance in early detection is continuous watch from weather satellites. With these, we can see the storms form. and track them fully, from birth to death. While they can still kill people and destroy property, hurricanes will never surprise any nation again.
Paragraph 1 __________ 查看材料
A.Short history of naming hurricanes
B.Harnessing the hurricane energy
C.Difficulty in forecasting the course of a hurricane
D.Huge energy stored in a hurricane
E.Forecasting a hurricane through satellite watching
F.Different names for the same things
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