What does Move 1 of CARS Model conclude?()
A. Background information
B.Current situation
C.Significance of the topic
D.Literature review
A. Background information
B.Current situation
C.Significance of the topic
D.Literature review
Droplets and ice crystals behave somewhat like dust in the air made visible in a shaft(束) of sunlight. To the casual observer, dust seems to act in a totally random fashion, moving about wildly without fixed direction. But in fact dust particles are much larger than water droplets and they finally fall. The cloud droplet of average size is only 1/2,500 inch in diameter. (78)It is so small that it would take sixteen hours to fall half a mile in perfectly still air, and it does not fall out of moving air at all. Only when the droplet grows to a diameter of 1/125 inch or larger can it fall form. the cloud. The average raindrop contains a million times as much water as a tiny cloud droplet. The growth of a cloud droplet to a size large enough to fall out is the cause of rain.
What is the main topic of the passage?
A.The mechanics of rain.
B.The climate of North America.
C.How gravity affects air current.
D.Types of clouds.
阅读下列短文,然后根据短文的内容从 58~61 小题的四个选择项中选出最佳的一项。
C
Have you ever argued with your loved ones over simple misunderstandings(误解)?Little wonder. We often believe we're more skillful in getting our point across than we actually are,according to Boza Keysar,a professor at the University of Chicago. In his recent study,speakers tried to express their meanings using unclear sentences. Speakers who thought listeners understood were wrong nearly half the time. Here‘s some good advice to reduce misunderstanding:
(1)Don't trust what you see from the listener. Listeners often nod,look at you or say“uhhuh”to be polite or move the conversation along. But it‘s easy to consider these as signs of understanding.
(2)Train the editor(编辑)in your head. If you say,“Beth discusses her problems with her husband,”it's not clear whether she‘s talking to her husband or about him. Try instead,“Beth talks to her husband about her problems.”or“Beth talks to others about the problems with her husband.”
(3)Ask listeners to repeat your message. Introduce your request by saying“I want to be sure I said that right.”Questions like“How does that sound?”or“Does that make sense?”may also work.
(4)Listen well. When on the receiving end,ask questions to be sure you're on the same page. After all,it isn‘t just the speaker's job to make his speech understood.
第 58 题 Why does the writer give us the advice?
A.We're not skillful enough to make clear sentences.
B.Misunderstanding is damaging our normal lives.
C.Misunderstanding occurs now and then.
D.It's impolite to say NO to others.
What does the verb form. of the word "renovation" mean in Paragraph 1?
A.Reform.
B.Rearrange.
C.Retreat.
D.Restor
Americans, valuing competition, have devised an economic system to go with-free enterprise. Americans feel very strongly that a highly competitive economy will bring out the best in its people and ultimately, that the society which fosters competition will progress most rapidly. If you look for it, you will see evidence in all areas--in all fields as diverse as medicine, the arts, education, and sports--that free enterprise is the approach most often preferred in America.
16. What does the author mean by saying “The ‘self-made man or woman’ is still very much the ideal in present-day America”?
A. Americans no longer respect those who are born rich as they used to.
B. Americans still respect those who have climbed up the social ladder through hard work.
C. Americans think that an ideal man or woman should be born poor.
D. Americans think that only the self-made man or woman is worthy of respect.
17. What does the author think of the American social system?
A. It is a system that does not favor those who are born rich.
B. It is a system that makes social climbing very difficult, if not impossible.
C. It makes it comparatively easy for the poor to move up the social ladder.
D. It is the best system possible in the world
18. Americans teaching in Third World countries found that ___.
A. competition is a unique American (or Western ) value
B. competition must be fostered in the classroom for success in business
C. cooperation is more important than competition in bringing about progress
D. competition is one of the universal human characteristics
19. We can infer from the passage that free enterprise is ____.
A. an economic system allowing free competition among businesses
B. a belief that competition brings out the best in any individual
C. an attitude that values competition rather than cooperation
D. a theory that advocates competition as the source of all progress
20. Americans would most likely frown at you if you ____.
A. complain that you were born poor and had had no opportunities
B. tell then you were born poor and had to work with your hands
C. go around telling people that your father is a self-made man
D. tell them that their social system is not necessarily the best
What does the author mean when he says, "we can't turn the clock back"(Line 1, Para. 3)?
A.It's impossible to slow down the pace of change.
B.The social reality children are facing cannot be changed.
C.Lessons learned from the past should not be forgotten.
D.It's impossible to forget the past.
The paragraph following this passage will most probably move on to ______.
A.some ways to prevent physical mirroring from offending
B.the mirroring has become mockery
C.the lawyer shrugs his shoulders the way the judge does
D.it has been found to be deliberately used
Look, what you have done! You ______ must have been move careful.
A.must
B.might
C.should
D.would
A.No problem
B.Sorry
C.I'm afraid that table is reserved
D.Yes, it's possible
Blinks also tell Stern when you have understood his question--often long before he's finished asking it--and when you've found an answer or part of (26) . "We blink at times (27) are psychologically important." He says. "You have listened to a question, you understand it, (28) you can take time out for a blink. Blinks are (29) marks. Their timing is tied to what is going on in your (30) ."
Stern has found that (31) suppress blinks when they are absorbing or anticipating (32) but not when they're reciting it. People blink later, for example, (33) they have to memorize six numbers instead of two. "You don't blink," he says, "until you have (34) the information to some short-term memory store." And if subjects are cued (35) the set of numbers is coming, say, five seconds, they'll curb their blinks until the task is (36) . Similarly, the more important the information that people are taking in, the more likely they are to put their blinks on hold for (37) Pilots blink less when they're (38) for flying a plane than when they (39) their eyes from the road to the rearview mirror. But if they see the flashing lights of a state trooper behind them, their (40) will move fast to the speed-meter and back to the mirror.
A.to
B.of
C.with
D.in
(79) Natural foods, for example, are vegetables, fruit and grain which have been grown in soil that is rich in organic (有机的) matter. In simple terms, this means that the soil has been nourished by unused vegetable matter, which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the amount—but not the quality—of foods grown in commercial farming areas.
Natural foods also include animals which have been allowed to feed and move freely in healthy pastures(牧场). Compare this with what happens in the mass production of poultry: there are farms, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. Chickens kept in this way are not only tasteless as food, they also lay eggs which lack important' vitamins.
There are other aspects of healthy eating which are now receiving increasing attention from experts on diet. Take, for example, the question of sugar. This is actually a non-essential food ! Although a natural alternative, such as honey, can be used to sweeten food if it is necessary, we can in fact do without it. It is not that sugar is harmful in itself. But it does seem to be addictive: the quantity we use has grown steadily over the last two centuries and in Britain today each person consumes an average of 200 pounds a year! Yet all it does is to provide us with energy, in the form. of calories. There are no vitamins in it, no minerals and no fiber.
(80) It is significant that nowadays fiber is considered to be an important part of a healthy diet. In white bread, for example, the fiber has been removed. But it is present in unrefined flour and of course in vegetables. It is interesting to note that in countries where the national diet contains large quantifies of unrefined flour and vegetables, certain diseases are comparatively rare. Hence the emphasis is placed on the eating of whole meal bread and more vegetables by modem experts on "healthy eating".
People have become more interested in natural foods because ______.
A.they are more health conscious
B.they want to taste all kinds of foods
C.natural foods are more delicious than processed foods
D.they want to return to nature
What does“meteorological experts”mean in paragraph three?_______
A.predictors
B.witch
C.weatherman
D. a kind of Englishman