If you are like most people, your intelligence varies from season to season. You are probably a lot sharper in the spring than you are at any other time of the year. A noted scientist, Ellsworth Huntington concluded from other men’s work and his own among people in different climates that climate and temperature have a definite effect on our mental abilities.

He found that cool weather is much more favorable for creative thinking than 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 the 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 the next best season, then winter. As for summer, it seems to be a good time to take a long vacation from thinking.

66. According to the passage, the mental abilities of most people ________.

A.      are different from season to season

B.      are the same in all seasons

C.      tend to be lowest in the winter

D.     tend to be lowest in the fall

67. What effect do climate and temperature have according to Ellsworth Huntington’s conclusion?

A. great effect on everyone’s intelligence

B. Some effect on most people’s intelligence

C. Effect on only a few people’s intelligence

D. No effect on people’s intelligence

68. Which of the following is NOT true?

A. Cool weather is good for thinking

B. Winter is the next best season for thinking

C. Summer is a good time to take a long vacation from thinking

D. Nature’s changes may affect our mental abilities

69.What is the possible reason why spring is the best season for thinking?

A. All nature, including man, is growing in spring

B. It lasts longer than the other season

C. It is neither too warm nor too cold

D. Both B and C

70. When should a vacation from thinking be taken according to the passage?

A. During spring and fall.             B. During winter

C. During summer                  D. During summer and winter

As we know, the earth’s climate has changed over time. The present rate of climate change depends, in large part, on human activities. Today, people all over the world are making everyday choices that help the environment. Small actions matter and they all make a difference. In other words, climate change is your business.

A woman in Nicaragua buys fluorescent(荧光的) light bulbs that are 80 percent more energy-saving than traditional ones. Many governments are now subsidizing energy-saving lights to encourage people to turn to them. Consumers are discovering that the new-generation bulbs help them save money in the long run.

Agriculture accounts for about 14 percent of global greenhouse gas emissions（排放）, and transporting the food around adds to the environmental cost. There is a team of young vegetable growers in the United Kingdom who want to encourage kids to start planting their own fruit and vegetables.

A young lawyer wearing business clothes rides her bicycle to work in a large U.S. city. She’s been biking to work every day for the past two years and says it’s a lot easier than many people think. A recent study found that more Americans bike or walk to work today than before.

A university student from southeastern China carries a reusable shopping bag to cut back on disposable（一次性的） plastics. Some large shopkeepers have removed paper and plastic bags, and consumers are responding.

In Canberra, Australia, summers are hot and winters cold. To save electricity, Adam Wilson in Canberra uses an energy-saving heating system, and he keeps the temperature lower than he did in years past. He still makes it through the summer without air conditioning.

60. The passage mainly tells us that 　　 .

A. human is to destroy the environment

B. the global warming is getting worse

C. saving energy is of great necessity

D. climate change is concerned with everyone

61. The underlined word “subsidize” in the second paragraph probably means “　　 ”.

A. charge　　 　B. produce　　　 C. search for　　　 D. give allowance

62. Which of the following is true?

A. Many people in Nicaragua go to work on foot or by bike.

B. University students from China always carry disposable shopping bags.　

C. Agriculture should be responsible for part of the global gas emissions.

D. The governments don’t expect consumers to use the new-generation bulbs.

63. What is the last paragragh mainly about?

A. The temperature varies with the season.

B. The energy-saving heating system can adjust the temperature.

C. An energy-saving heating system will come into use.

D. Adam Wilson is skilled in inventing the energy-saving equipment.

As we know, the earth’s climate has changed over time. The present rate of climate change depends, in large part, on human activities. Today, people all over the world are making everyday choices that help the environment. Small actions matter and they all make a difference. In other words, climate change is your business.

A woman in Nicaragua buys fluorescent(荧光的) light bulbs that are 80 percent more energy-saving than traditional ones. Many governments are now subsidizing energy-saving lights to encourage people to turn to them. Consumers are discovering that the new-generation bulbs help them save money in the long run.

Agriculture accounts for about 14 percent of global greenhouse gas emissions（排放）, and transporting the food around adds to the environmental cost. There is a team of young vegetable growers in the United Kingdom who want to encourage kids to start planting their own fruit and vegetables.

A young lawyer wearing business clothes rides her bicycle to work in a large U.S. city. She’s been biking to work every day for the past two years and says it’s a lot easier than many people think. A recent study found that more Americans bike or walk to work today than before.

A university student from southeastern China carries a reusable shopping bag to cut back on disposable（一次性的） plastics. Some large shopkeepers have removed paper and plastic bags, and consumers are responding.

In Canberra, Australia, summers are hot and winters cold. To save electricity, Adam Wilson in Canberra uses an energy-saving heating system, and he keeps the temperature lower than he did in years past. He still makes it through the summer without air conditioning.

60. The passage mainly tells us that 　　 .

A. human is to destroy the environment

B. the global warming is getting worse

C. saving energy is of great necessity

D. climate change is concerned with everyone

61. The underlined word “subsidize” in the second paragraph probably means “　　 ”.

A. charge　　 　B. produce　　　 C. search for　　　 D. give allowance

62. Which of the following is true?

A. Many people in Nicaragua go to work on foot or by bike.

B. University students from China always carry disposable shopping bags.　

C. Agriculture should be responsible for part of the global gas emissions.

D. The governments don’t expect consumers to use the new-generation bulbs.

63. What is the last paragragh mainly about?

A. The temperature varies with the season.

B. The energy-saving heating system can adjust the temperature.

C. An energy-saving heating system will come into use.

D. Adam Wilson is skilled in inventing the energy-saving equipment.