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--Mr. Zhang，this problem is too difficult．
--Don't lose your heart．I believe ________．
A．you can work out it B．you can work it out
C．you can't work it out
查看习题详情和答案>>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 call also influence intelligence．For example，in a 1983 report by scientists，IQ（智商）of a group of students was 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．Students in the schools of the United States often don't do very well 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 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（气压）may make people forgetful．People more possibly leave bags on buses or in shops on low air pressure days．Are you feeling sad，tired，forgetful，or unhappy today? It may be the weather's problem．Of course，there is “good weather” for work and health．People feel best at a temperature of about 18℃．
1．It's very hot and wet in _________ the part of USA in August．
A．northeast B．middle west C．southern D．northern
2．The report in 1983 tells the relationship between _________．
A．weather and health B．weather and memory
C．weather and feelings D．weather and IQ
3．People may have more intelligence when _________ comes．
A．a rain B．very hot weather
C．a strong wind D．low air pressure
4．At a temperature of about 18℃，_________．
A．people are forgetful B．people can't do their work well
C．thin people feel cold D．people are in good work and health
5．Which of the following sentences is TRUE?
A．Hot and cold weather influences all people in the same way．
B．Weather influences people's lives．
C．IQ never changes when weather changes．
D．There isn't good weather for people's work and health．
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