Passage 3 If you are like most people,your intelligence (智力) varies from season to season.You aPassage 3If you are like most people,your intelligence (智力) varies from season to season.You are probably a lot sharper in the spring than you are at any other time of year.A noted scientist,Ellsworth Huntington (1876-1947),concluded from other men′s work and his own among peoples in different climates that climate(气候) and temperature have a definite effect

Passage 3 If you are like most people,your intelligence (智力) varies from season to season.You a
Passage 3
If you are like most people,your intelligence (智力) varies from season to season.You are probably a lot sharper in the spring than you are at any other time of year.A noted scientist,Ellsworth Huntington (1876-1947),concluded from other men′s work and his own among peoples in different climates that climate(气候) and temperature have a definite effect on our mental(精神上的)abilities.
He found that cool weather is much more favorable for creative thinking than is summer heat .This does not mean that all people are less intelligent in summer than they are during the rest of the year,It does mean ,however ,that the mental abilities of large numbers of people tend to be lowest in summer.
Spring appears to be the best period of the year for thinking.One reason may be that in the spring man’s mental abilities are affected by the same factors that bring about great changes in all nature.
Fall is next-best season,then winter.As for summer,it seems to be a good time to take a long vacation from thinking.
11.According to the passage,man’s intelligence ____________.
A) stays the same throughout the year.B) varies from day to day
C) changes with the seasons D) changes from year to year
12.Ellsworth Huntington decided that climate and temperature have ___________.
A) a great effect on everyone’s intelligence.
B) some effect on most people’s intelligence.
C) some effect on a few intelligence.
D) an effect on most people’s intelligence.
13.Ellsworth Huntington’s conclusion was based on _______________ .
A) variations of his own mental abilities from season to season
B) the results of research done by him and other scientists among peoples in different climates
C) detailed records of temperature changes different places
D) detailed records of different way of thinking among peoples in different climates
14.Why does the author say summer is a good time for a long vacation from thinking?.
A) Because a long vacation in summer helps to improve people’s mental power.
B) Because people tend to be less creative during summer.
C) Because summer is a good time for outdoor activities.
D) Because mental exertion in the summer heat takes too much of people’s energy (能量).
15.The central ides of this passage is ______________ .
A) man’s mental abilities change from season to season
B) man’s intelligence varies from place to place
C) man should take a long vacation in summer
D) if you want to do creative thinking,go to a cool place