阅读理解。阅读下列材料，从A、B、C、D四个选项中选出最佳答案。

　　Different weather makes people feel different．It influences health, intelligence(智力)and feelings．

　　In August, it is very hot and wet in the southern part of the United States．People there have heart trouble and other kinds of health problems during this month．In the Northeast and the Middle West, it is very hot at some times and very cold at other times．People in these states have more heart trouble after the weather changes in February or March．

　　The weather can also influence intelligence．For example, in a 1983 report by scientists, IQ(智商)of a group students were very high when a very strong wind came, but after the strong wind, their IQ was 10％ below．The wind can help people have more intelligence．Very hot weather, on the other hand, can make it lower．Students in many schools of the United States often get worse on exams in the hot months of the year(July and August)．

　　Weather also has a strong influence on people's feelings．Winter may be a bad time for thin people．They usually feel cold during these months．They might feel unhappy during cold weather．But fat people may have a hard time in hot summer．At about 18℃, people become stronger．

　　Low air pressure may make people forgetful．People leave more bags on buses and in shops on low-pressure days．People feel best at a temperature of about 18℃．

　　Are you feeling sad, tired, forgetful, or unhappy today? It may be the weather's problem．

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阅读理解

　　If you are like most people, your intelligence(智力)changes with the seasons, You are probably a lot sharper in the spring than you are at any other time of year．A famous scientist, Ellsworth Huntington(1876－1947), concluded(总结)that climate and temperature have an effect(作用)on your mental abilities(智力)．

　　He found that cool weather is much more favorable for creative(激活)thinking than summer heat．This does not mean that all people are less intelligent in the summer than they are during the rest of the year．It does mean, however, that the mental abilities of large numbers of people tend to be lowest in the summer．

　　Spring appears to be the best period of the year for thinking One reason may be that in the spring man’s mental abilities are affected(受影响)by the same factors(因素)that bring about great changes in nature．

　　Fall is the next-best season, then winter．As for summer, it seems to be a good time to take a long vacation from thinking．

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完形填空

　　I left Beijing 　　1　　 June 2 and reached home 　　2　　 ．Let me 　　3　　 you something about the weather in South Australi A It's very different from Beijing 　　4　　 of year ．It's 　　5　　 now and it's very cold ．We all wear 　　6　　 clothes ．I often go skating ．Sometimes I go to my uncle farm ．Milk is very 　　7　　 here ．So we have milk for breakfast every day ．Life on the farm is very 　　8　　 ,but I enjoy it very much ．

　　You're working in the factory at the moment , 　　9　　 you? I hope you can mend a clock now ．Lim has a 　　10　　 clock! Remember?

　　I'm leaving Sydney for Beijing early next month ．I'm glad we will be together soon ．

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