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Different kinds of weather make people feel different. They influence (影响) health, IQ (智力) and feelings (心情).

In the southern part of the United States, it is very hot at sometime and very cold at other time. People in those places often catch a cold when the weather changes in February or March.

The weather can also influence IQ. For example, a very strong wind can help people have higher IQ. However, very hot weather can make it lower. Students in many schools of the United States often get lower scores (分数) in 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 and unhappy during these months. But fat people may have a hard time in hot summer.

Do you feel like you have a cold? Do you think you are not smart? Do you feel sad today? It may be the weather’s problem.

1．When do people in the south of the US often catch a cold?

A．When the weather is cold.	B．When the weather is hot.
C．When the weather changes.	D．When the weather is cool.

2．What can we know from paragraph 3 and 4?

A．Students like taking exams in July and August.

B．Students get lower scores when the weather is hot.

C．Thin people feel happy in winter.

D．Fat people like July and August best.

3．What does the underlined word “it” refer to (指的是)?

A．the wind.

B．IQ.

C．the hot weather.

D．the report.

4．Which of the following shows the structure (结构) of the passage?

A．

B．

C．

D．

5．What is the writer’s purpose (目的) of writing this passage?

A．To tell us about different weather.

B．To let us know the importance of weather.

C．To ask us to study in hot weather.

D．To show how weather can influence us.