Directions: Read the text and choose the most suitable heading from this list for each paragraph of the text.

76.__________

       Here is what global warming could do in a few years: in Dallas, a doubled level of carbon dioxide would increase the number of days a year with temperatures above 100 degrees from nineteen to seven-eight. On sixty-eight days, as opposed to the current four, the temperature wouldn’t fall below 80 degrees at night. One hundred and sixty-two days a year, the temperature would top 90 degrees.

77. __________

       Although most scientists agree that increasing levels of carbon dioxide and other greenhouse gases will inevitably lead to global warming, no one is certain how fast and how much temperatures will rise and what the effects will be in any geographical areas. This gives policymakers an excuse for delaying action. Some experts predict that within two centuries glaciers(冰川) in the North and South Poles will melt, ocean levels will rise, and much of what is now the coast of the United States will be under water. They also predict great droughts and hurricanes, as a result of climate changes.

78. __________

       Other scientists think the changes will be much more gradual, even beneficial. After all, Canada would not complain if the productive corn-growing lands were shifted north. While many nations could end up with milder climates, the change-perhaps 100 times faster than at any time in human history—could be so drastic(猛烈的) that many of the benefits would be lost. There could be crowds of environmental refugees, as well, making the tragedy of the Dust Bowl era seem mild in comparison.

79. __________

       What can we do? Humanity’s contribution to the greenhouse effect comes from so many basic activities that we can’t hope to eliminate it completely. Some steps have already been taken. Since the 1970’s, the use of CFCs as aerosol-can propellants(喷雾器) has seen banned in the United States.

80. __________

       Another strategy is to burn as much as methane(甲烷) as possible. This aids CO2 to the air, but since methane traps twenty times as much heat as CO2, the net result is worth-while. The gas in many garbage landfills is already being used in a number of places around the United States. It is being used to heat thousands of homes.

Section D

阅读理解

　　People often say,“Children can’t do maths problems. It’s because parents can’t do their children’s homework.”Here’s an example to show what I mean.

　　The other day my daughter brought home her maths homework,“I have to subtract(减) 179 from 202,”she said.

　　“It’s quite easy,”I said.“You put the 202 over the 179.”

　　“But we need a 10 here. Where is the 10?”

　　“I don’t know where the 10 is. Let’s just subtract 179 from 202. Nine from two is three. You carry one and add it to seven. Eight from zero is two. The answer is 23.”

　　“We can’t do it that way. We have to use the 10.”

　　“Well, I’m going to call your teacher to see how she subtracts 179 from 202.”

Over the telephone, I said that I was having a bit of trouble with the homework she had given to my daughter. The teacher said,“In the right-hand column we have units of one. The two in that column counts for two ones. The zero in the centre counts for zero tens. The two in the left-hand column counts for hundreds. Are you clear?”But I didn’t think it was clear.

　　I hung up and found my way to the medicine box. My head was now hurting. I started putting pills of medicine into my mouth.“How many did you take?”my wife asked.“I took one and then I took another… I knew one and one was two, but don’t ask me what it is now.”

1．The daughter wanted ________ the other day.

[　　]

A．to give her father a lesson

B．to show how difficult maths was

C．her father to phone her teacher

D．her father to help her with the homework

2．Which of the following sentences is not true?

[　　]

A．The father had a different way to do the maths problem.

B．The father couldn’t do his daughter’s maths homework.

C．The daughter couldn’t understand her father’s way.

D．The daughter had some trouble doing the maths problem.

3．From what the teacher said, we know the word units means ________ here.

[　　]

A．whole numbers less than 10

B．whole things

C．groups of lessons

D．the smallest numbers

4．What the teacher said made the father ________.

[　　]

5．Can you guess what would happen next in the story?

[　　]

A．The father would go to school and begin to learn maths.

B．The father would become very ill and have to take more medicine.

C．The father would never do his daughter’s maths problems again.

D．The father would go to the school and fight against the teacher.

Charlie Chaplin was the first international star of the modern times. He was especially beloved for his Little Tramp  36 . He was the first screen artist to write,  37  and perform in his own films; in fact,  38 , Charlie Chaplin even wrote the music for his movies. He was also the first artist to use his work to pass a  39  of equality and justice for all－ 40  for the “little guy”. Charlie Chaplin’s career and life made  41  the first global icon (偶像); his too small hat, his too large shoes and his trademark moustache were instantly  42 by audiences from Chicago to China, from Iowa City to India. And they  43  are today. All of these make Charlie Chaplin the first citizen of our global village.

Chaplin, a native of London, was born in  44  on April 16, 1889 to music hall performers. Chaplin only saw his  45  twice until the age of seven. The man  46  him and his mother about a year after Chaplin was  47 . During Chaplin’s earliest years, his mother was a (n)  48  and performer. Then her voice gave out, her stage career  49 , and she began actively  50  Church of England services. At the age of  51 , Chaplin’s mother was considered insane and sent to Cane Hill lunatic asylum(疯人院), and the  52  sent Charlie and his brother to live with his father,  53  had by then stopped all payments of child support.

Charlie Chaplin lived with his father only a short time  54  his mother was released from the lunatic asylum and then  55  Charlie and his brother to live with her once again.

1.                A．behavior        B．character       C．personality    D．quality

2.                A．act            B．direct          C．shoot D．edit

3.                A．in case of       B．in this case      C．in some cases  D．in case

4.                A．possibility       B．culture         C．message  D．importance

5.                A．generally       B．especially       C．specially  D．totally

6.                A．him            B．them           C．us   D．it

7.                A．recognized      B．believed        C．realized  D．known

8.                A．really          B．always          C．still  D．ever

9.                A．happiness       B．poverty         C．luck D．nature

10.               A．brother        B．teacher        C．mother    D．father

11.               A．taught         B．left            C．loved D．expected

12.               A．born           B．young          C．ill    D．old

13.               A．actor          B．artist           C．singer D．dancer

14.               A．ended         B．began          C．broke D．continued

15.               A．serving         B．attending       C．joining    D．asking

16.               A．seven          B．eight           C．nine  D．ten

17.               A．mother         B．police          C．court D．family

18.               A．which          B．whomever      C．whoever  D．who

19.               A．then           B．before         C．when D．until

20.               A．picked up       B．A took away     C．took apart D．brought up

It was Christmas 1961. I was teaching in a small town where my twenty-seven third graders eagerly   36  the great day of gift-giving in advance.
Each day the children produced some new   37  — strings of popcorn, handmade trinkets, and German bell. Through it all she remained alone,   38   from a distance, seemingly miles away. I wondered what   39  happen to this quiet child, once so happy, now suddenly so withdrawn. I hoped the festivities would   40  her. But nothing did. The students made the fried marbles（油炸玻璃弹子）and competed with one anther to bring the   41  ones.
The day of gift-giving finally came. We cheered over our handiwork as the presents were   42 . All along, she sat quietly watching. To see her smile, I had made a special bag for her. She opened it so slowly and carefully. I waited but she   43 . I had not passed through the wall of isolation she had   44  around herself.
After school I sat down in a chair, hardly   45  of what was happening, when she came to me with outstretched hands, bearing a small white box, and slightly soiled,   46  it had been held many times by   47 , childish hands. She said nothing. “For me?” I asked. She said not a word, but   48  her head. I took the box and cautiously opened it. There inside, glistening green, a fried marble   49  from a golden chain. Then I looked into that eight-year-old   50  and saw the question in her dark brown eyes. In a flash I knew — she had   51  it for her mother, who had died just three weeks before and would never hold her or brush her hair or   52  her childish joys or sorrows.
I meant it when I whispered, “Oh, Maria, it is so beautiful. Your mother would   53  it.” Neither of us could stop the   54 . She threw herself into my arms and we wept together. And for that brief moment I became her mother, for she had given me the greatest   55  of all: her trust and love.