2．Different weather makes people feel different．It influences（影响）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 （疾病） and other kinds of health problems during this month．In the Northeast and the Middle West，it is very hot at times and very cold at other times．People in these states have more heart trouble after the weather changes （变化） in February of March．
The weather can also influence intelligence．For example，in a 1983report by scientists，IQ （智商） of a a group 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．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．There is a"good weather"for health．People feel best at a temperature of about 18centigrade （摄氏度）．
Are you feeling sad，tired，forgetful，or unhappy today？It may be the weather's problem．
根据短文所提供的信息选择最佳答案．
51．A can have a bad effect on health．
A．Hot weather
B．Good weather
C．Warm weather
52．People may have more intelligence whenB comes．
A．being rainy
B．being cloudy
C．being windy
53．The underlined word"pressure"in the passage meansB
A．压强
B．压力
C．阻力
54．In"Good weather"of 18centigrade，C．
A．people are very forgetful．
B．people can't do their work well
C．people are in better health
55．The title of the passage should beC
A．Weather and People's Lives
B．IQ and Weather Changes
C．A Good Kind of Weather for People's Work and Health．
分析 这篇短文中作者用举例的方法说明了天气变化对于人体健康，智商和心情的影响．
解答 51．A 推理判断题．根据文章第二段的介绍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．可知，炎热而潮湿的天气对于人的健康是有影响的．故选A．
52．B 细节理解题．根据文章"IQ（智商） of a group of students was very high when a very strong wind came，"可知，有风的天气人的智商是很高的．故选B．
53．B 词义猜测题．根据后半句：may make people forgetful可能会使人遗忘，可以推断出此处应该是：低气压．故选B．
54．C 细节理解题．根据There is a"good weather"for health．People feel best at a temperature of about 18centigrade （摄氏度）．人们在18度左右感觉是舒适的，故选C．
55．C 主旨大意题．根据"Different weather makes people feel different．It influences health，intelligence（智力） and feelings．"可知本文讲述的是天气对于人的健康和智商是有影响的．故选C．
点评 做题时要在理解好文意的基础上，与题目有机的结合，从文章中找到相关细节性的句子与选项细细比对，进行选择或推理判断，选出符合文章内容的正确选项．做题注意灵活，有时可采用排除法或直选法确定出最终答案．
