题目内容
The action of water on rock should be taken into account.
解析:
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应考虑到水对岩石的作用。 |
Did you know that women’s brains are smaller than men’s? The average women’s brain weighs 10% less than men’s. Since research has shown that the bigger the brain, the cleverer the animal, men must be more intelligent than women. Right? Wrong. Men and women always score similarly on intelligence tests, despite the difference in brain size. Why? After years of study, researchers have concluded that it’s what’s inside that matters, not just the size of the brain. The brain consists of “grey matter” and “white matter”. While men have more of the latter, the amount of “thinking” brain is almost exactly the same in both sexes.
It has been suggested that smaller brain appears to work faster, perhaps because the two sides of the brain are better connected in women. This means that little girls tend to learn to speak earlier, and that women can understand sorts of information from different sources(来源)at the same time. When it comes to talking to the boss on the phone, cooking dinner and keeping an eye on the baby all at the same time, it’s women who come out on top every time.
There are other important differences between two sexes. As white matter is the key to spatial (空间的) tasks, men know better where things are in relation to other things. “A great footballer always knows where he is in relation to the other players, and he knows where to go,” says one researcher. That may explain one of life’s great mysteries: Why men refuse to ask for directions … and women often need to!
The differences begin when fetuses (胎儿) are about nine weeks old, which can be seen in the action of children as young as one. A boy would try to climb a barrier before him or push it down while a girl would attract help from others. These brain differences also explain the fact that more men take up jobs that require good spatial skills, while more women speech skills. It may all go back to our ancestors, among whom women needed speech skills to take care of their babies and men needed spatial skills to hunt, according to one research.
If all this disappoints you, it shouldn’t. “The brain changes throughout our lives according to what we do with it,” says a biologist.
1.Which of the following is TRUE according to the first paragraph?
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A.Women’s brain is 10% less than men’s. |
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B.Grey matter controls thinking in the brain. |
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C.Grey matter plays the same role as white matter. |
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D.Both sexes have the same amount of white matter. |
2.What can we infer from the second and third paragraphs?
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A.Women don’t need to tell directions. |
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B.Women prefer doing many things at a time. |
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C.Men have weaker spatial abilities. |
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D.Men do better dealing with one job at a time. |
3.Which of the following do you agree with according to the fourth paragraph?
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A.Young boys may be stronger than young girls. |
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B.Women may have stronger feelings than men. |
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C.More women take up jobs requiring speech skills. |
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D.Our ancestors needed more spatial skills. |
4.What is the writer’s attitude in writing this passage?
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A.Defensive. |
B.Persuasive. |
C.Supportive. |
D.Objective. |
Beginning in October, more than 13,000 McDonald’s (麦当劳)restaurants in America will use a new variety of cooking oil. McDonald' s aims to make its French fries (油炸食品) and other fried foods healthier.
The change will not affect the taste or the number of calories in the food. But by changing the cooking oil, McDonald’s says, it hopes to cut by nearly half the amount of trans fatty acids (转换脂肪酸) in French fries and reduce the amount of saturated fats(饱和脂肪) by 16 percent. Scientists believe that trans fatty acids and saturated fats raise cholesterol(胆固醇) levels and increase the risk of heart disease.
McDonald's new step is important because McDonald’s is an industry leader and other fast-food chains and food processors may follow the lead.
For McDonald's ,the action comes at a time when Americans are becoming more and more concerned about; obesity (肥胖) and are increasing pressure on food companies to offer healthy and nutritious (有营养的) food to consumers.
After three years of study, McDonald’s officials say they are switching oil that is lower in saturated fats and trans fatty acids. McDonald's says the change will not cause higher price for consumers.
Though there is some change, scientists say that the amount of trans fat in foods at McDonald's and at other fast-food companies is still important.
1.More than 13,000 McDonald's restaurants in America will use a new kind of cooking oil to ______________.
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A.lower the costs of the products |
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B.maker its food taste hatter than ever before |
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C.cure (治愈) the heart disease |
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D.do good to the health of consumers |
2.The underlined ward "switching" here has the same meaning as " _______ ".
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A.turning on |
B.turning off |
C.changing |
D.studying |
3.The main idea of the passage is __________ .
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A.McDonald's is a pioneer in food products |
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B.McDonald's is enlarging its restaurants in the world |
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C.fried foods can’t keep up with the development of modem society |
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D.McDonald’s is to use new cooking oil |
4.When a new kind of cooking oil is used in McDonald’s, ________
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A.the prices of McDonald’s foods will be a tot higher |
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B.consumers will find the taste of McDonald’s foods different |
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C.many other food companies will do what McDonald's does |
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D.obesity will disappear in American society sooner or later |