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| Climate change could make much of the world too hot for human habitation (居住) within just three centuries, according to some scientists. These scientists found that rising temperatures in some places mean humans would be unable to adapt or survive. "' It would begin to occur with global - mean warming of about 7℃, calling the habitability of some regions into question," the researchers wrote in a paper. With 11-12℃ warming, such regions would spread to include the majority of the human population as currently distributed. Professor Steven said there was no chance of the earth heating up by 7℃ this century, but there was a serious risk that the continued burning of gas and coal could create the problem by 2300. "'There's something like a 50/50 chance of that over the long term," he said. The study, which examined climate change over a longer period than most other research, looked at the "heat stress" produced by combining the influence of rising temperatures and increased humidity (湿度). Professor Steven said climate change research had been "short-sighted" not to realize the long-term consequences of the influence of greenhouse gases blamed for global warming. "It needs to be paid attention to," he said. "There's not much we can do about climate change over the next two decadesbut there's still a lot we can do about the longer term changes." "Near 2300, we may be faced with temperature increases of 12 degrees or even more," Professor Tony Michael said." If this happens, our current worries about sea level rise, occasional heat waves and bushfires, biodiversity (生物品种) loss and agricultural difficulties will appear in front of us -- as much as half the currently inhabited globe may simply become too hot for people to live there. " |
| 1. Which of the following statements is supported by Professor Steven？______ |
| A. The earth will heat up by 7℃ this century. B. Burning of fuel adds to the earth's heating. C. We may be faced with temperature increases of 12 degrees. D. Climate change would not stop until 2100. |
| 2. From the underlined part in Paragraph 5 we learn that Professor Steven______ |
| A. thinks scientists should do more research on climate change B. doesn't think we can do anything to avoid global warming C. believes we can do much to prevent the longer term changes D. wishes to examine climate change over a longer period |
| 3. The author mainly wants to tell us that _____. |
| A. the human population is not distributed properly B. large parts of the earth may be too hot for humans to live on by 2300 C. greenhouse gases are to blame for global warming D. human beings will die out three centuries later |
A、is that
B、and which
C、that is
D、to us
C Are some people born clever and others born stupid？ Or is intelligence developed by our environment and our experiences？ Strangely enough, the answer to both these questions is yes. To some extent our intelligence is given us at birth, and no amount of special education can make a genius（天才）out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his / her intelligence less than one who lives in rich and varied surroundings. Thus the limits of a person’s intelligence are fixed at birth, but whether or not he / she reaches those limits will depend on his / her environment. This view, now held by most experts, can be supported in a number of ways. It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random from the population, it is likely that their degrees of intelligence will be completely different. If on the other hand we take two identical twins, they will very likely be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth. Imagine now that we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing,and this indicates that environment as well as birth plays a part.This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all, are likely to have similar degrees of intelligence. 64. The writer holds the view that human beings’ intelligence depends on . A) birth B) education C) both birth and environment D) neither birth nor education 65. It can be learned from the passage that if a child is born with low intelligence, he can . A) not become a genius. B) still become a genius if he is given special education. C) exceed(超过) his intelligence limits in rich surroundings. D) not fulfill his intelligence in his life. 66. In the second paragraph, “if we take two unrelated people at random from the population” means “if we ”. A) pick any two persons. B) choose two persons who are relatives. C) take out two different persons on purpose. D) choose two persons with different intelligence. 67. The example of the twins in the third paragraph is used to show . the importance of their intelligence. the role of environment on intelligence. the importance of their social positions. the part that birth plays. |
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