影响碳粉燃烧主要因素

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The weather can influence(影响)intelligence(智力). For example, in a 1983 report by scientists, IQ of a group of students was very high when a very strong wind came, but after the strong wind, their IQ was 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 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 weather. At about 18 °C, people become stronger.
Lower 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 °C.
Are you feeling sad, tired, forgetful or unhappy today? It may be the weather’s problem.
小题1:What can influence people’s intelligence according to the first paragraph?

A．Feeling.

B．Diet.

C．Health

D．Weather.

小题2:Students get worse on exams because ___________.

A．they take exams in hot months	B．they take exams in cold months
C．they take exams with bad feelings	D．they take exams in windy months

小题3:At a temperature of about 18 °C. people may_________.
A. leave more bags on buses B. like to go shopping
C. remember things better D. feel unhappy
小题4:Which of the following is NOT true?

A．A report in 1983 showed that weather can influence intelligence.

B．The wind can make people cleverer.

C．Hot summer is a hard time for fat people.

D．Weather has nothing to do with people’s feelings.

Weather has a strong effect(影响) on people. 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 easily have heart trouble and other kinds of health problems during this month. In the Northeast and the Middle West, it is hot at some times and very cold at other times. People in those states will have heart trouble after the weather changes in February or March.
The weather can also influence intelligence. For example, in a 1983 study by scientists, the IQ scores of some college students were very high during storm, but after the storm, their scores were low. Storms can increase intelligence. Very hot weather, on the other hand, can decrease(减少) it. Students in many schools of the United States often do badly in exams in the hot months of the year(July and August).
Weather also has a strong effect on people’s feeling. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel depressed during cold weather. In hot summer weather, on the other hand, fat people may feel unhappy. At about 65F, people become stronger.
Low air pressure(气压) makes people feel free, but it also increases forgetful- ness. People leave more bags and umbrellas on buses and in stores on low pressure days. There is a“perfect weather”for work and health. People feel best at a tempera- ture of about 64F with 65 percent humidity(湿度).
Are you feeling sick, sad, tired, forgetful, or very intelligent today? The weather may be the reason.
小题1:Intelligence may be lower______.

A．during a storm	B．when it is sunny
C．on a very hot day	D．when you take in an exam

小题2: In the third paragraph,“depressed”means .

A．兴奋的

B．愉快的

C．忧郁的

D．担心的

小题3: In“perfect weather”, .

A．both the fat and the thin are healthy

B．the students do very well in examinations

C．the air pressure is low

D．the humidity is 65 percent and the temperature is about 64F