1. (2020七上·深圳期中) 阅读理解

Difference kinds of weather make people feel different. They influence people's health, intelligence and feelings. In the southern part of the Untied States, it is very hot at some time and very cold at other time. People in those places have more heart trouble and other kinds of health problems after the weather changes in February or March.

The weather can also influence intelligence. For example, in the report of 1983 by scientists, IQ of a group of students is very high when a very strong wind comes, but after the strong wind, their IQ is 10% lower. 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 scores in exams in the hot months of the year.

Weather also has a strong influence of people's feelings. Winter may be a bad time for thin people. They usually fee cold and unhappy during these months, But fat people may have a hard time in hot summer.

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

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

1. （1） In the southern part of the United States, why do people have more heart trouble in February or March?

   A . Because the weather is fine. B . Because the weather is hot. C . Because the weather is cold. D . Because the weather changes.
3. （2） In many schools of the United States, when will students get a worse score in an exam?

   A . In May. B . In July. C . In December. D . In February.
5. （3） The writer tells us that         .

   A . hot and cold weather influences all people in the same way B . weather influences people's lives C . IQ hardly changes when weather changes D . people feel good on low pressure days
7. （4） What can we infer (推断) from the passage?

   A . People is indifferent to different kinds of weather B . All the fat people don't like hot summer. C . People feel worse at a temperature of 18 centigrade than 25 centigrade. D . If you feel forgetful, you may blame the weather.