Most of us are used to seasons. Each year, spring follows winter, which follows autumn, which follows summer, which follows spring. And winter is colder than summer. But the earth goes through temperature cycles over much longer periods than those that we experience. Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.
A new study from Switzerland, sheds light on where ice sheets melted during the ice age. It now seems that the ice melted at both ends of the earth, rather than just in either northern or southern regions.
This surprised the researchers from the University of Bern. Scientists have long assumed that most of the ice that melted was in the Northern hemisphere(半球) during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. It is easier for ice sheets to grow on land. If surrounded by sea the ice can easily just slip into the ocean instead of building up.
The researchers used a computer model to look at ways the ice could melt and how it might affect sea levels. They compared these results to evidence of how temperatures and currents actually changed during that time. The model showed that if it was only in the Northern hemisphere that ice melted, there would have been a bigger impact(影响) on ocean currents(洋流) and sea temperatures than what actually happened. Studies suggest that melting just in the Southern hemisphere would have been impossible, too. The only reasonable conclusion, the scientists could make, was that ice melted equally in the North and the South.
It is still a mystery as to what caused the temperature changes that caused the ice to melt.The North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. So scientists thought that ________.
| A．most of the ice melted in the Northern hemisphere |
| B．most of the ice melted in the Southern hemisphere |
| C．The North Pole is colder than South Pole |
| D．The South Pole is colder than North Pole |
We can infer from the passage ________.
| A．the ice can easily just slip into the ocean |
| B．volcanoes caused the ice to melt |
| C．melting just in the Northern hemisphere would have been impossible |
| D．researchers often use the computer models help their research work. |
The scientists are not sure ________.
| A．how long the ice age lasted |
| B．where ice sheets melted during the ice age |
| C．what caused the temperature changes |
| D．what the earth is made up of |
Which of the following is the best title for the passage?
| A．A computer model |
| B．Studies show ice melted equally in the North and the South during the ice age |
| C．Most of the ice melted in the Northern hemisphere during the 30,000-year long ice age. |
| D．A survey result |
It was midnight in Paris and we were rolling toward Avenue Bosguet. As we came to the Pont Alexandra Ⅲ, the taxi slowed down, for the traffic light was red against us, and then, without stopping, we sailed through the red in a sudden burst of speed. The same performance was repeated at the Alma Bridge. As I paid the driver, I asked him why he had driven through two red lights.
“You ought to be ashamed of yourself, breaking the law and endangering your life that way,” I protested.
He looked at me, astonished. “Ashamed of myself? I am a law abiding(守法的)citizen and have no desire to get killed either.” He cut me off before I could protest.
“No, just listen to me before you complain.What did I do? Went through a red light. Well, did you ever stop to consider what a red light is, what it means?”
“Certainly,” I replied. “It’s a stop signal and means that traffic is rolling in the opposite direction.”
“Half-right,” said the driver, “but incomplete. It’s only an automatic stop signal. And it does not mean that there is cross traffic. Did you see any cross traffic during our trip? Of course not. I slowed down at the light, looked carefully to the right and to the left. Not another car on the street at this hour. Well, then! What would you have me do? Should I stop like a stupid animal because an automatic, brainless machine turns red every forty seconds? No, sir,” he shouted. “I am a man, not a machine. I have eyes and a brain and judgment, given me by God. Ashamed of myself, you say? I would only be ashamed of myself if I let those blinking lamps do my thinking for me. Good night ,sir.”
Is this bad, is this good? Frankly I am no longer sure...
60. At the Alma Bridge, ______.
A. the writer stopped the taxi and paid the driver
B. the taxi went through a red light again
C. there was a performance the writer had already watched
D. the writer began to criticize the driver
61. To the taxi driver, a red light ______.
A. was not a stop signal
B. should not work at midnight
C. sometimes made mistakes in judgment
D. didn’t always mean that there was cross traffic
62. The main reason the driver dared to drive through the red light was that ______.
A. he found there was no cross traffic there at that time
B. he thought it a shame to be controlled by a machine
C. he knew no other driver would see him at this hour
D. he didn’t trust any brainless machine
63. According to the passage, the driver thought what he had done was ______.
A. law abiding（守法的） B .lawbreaking
C. something to be proud of D .something to be ashamed of
第三部分：阅读理解（共15题，每题2分，共30分）
If you do not use your arms or your legs for some time, they become weak; when you start using them again, they slowly become strong again. Everybody knows that. Yet many people do not seem to know that memory works in the same way.
When someone says that he has a good memory, he really means that he keeps his memory in practice by using it. When someone else says that his memory is poor, he really means that he does not give it enough chance to become strong.
If a friend says that his arms and legs are weak, we know that it is his fault. But if he tells us that he has a poor memory, many of us think that his parents are to blame(责备), and few of us know that it is just his own fault.
Have you ever found that some people can't read or write but they have better memories? This is because they cannot read or write and they have to remember things; they cannot write them down in a little notebook. They have to remember days, names, songs and stories; so their memory is the whole time being exercised.
So if you want to have a good memory, learn from the people: practise remembering.
56. The main reason for one's poor memory is that ______.
A. his memory is not often used
B. he does not use his arms or legs for some time
C. his father or mother may have a poor memory
D. he can't read or write
57. If you do not use your arms or legs for some time, ______.
A. you can't use them any more
B. they will become stronger
C. they become weak and won't become strong until you use them again
D. they become weak but they slowly become strong again
58. Some people can't read or write, but they usually have better memories, because ______.
A. they have saved much trouble
B. they have saved much time to remember things
C. they can't write everything in a little notebook
D. they have to use their memories all the time
59. Which is the best title of the passage?
A. Don't Stop Using Your Arms Or Legs B. How To Have A Good Memory
C. Strong Arms And Good Memories D. Learn From The People
I really love my job because I enjoy working with small children and like the challenges and awards from the job. I also think my work is important. There was a time when I thought that I would never have that sort of career.
I wasn’t an excellent student because I didn’t do much schoolwork. In my final term I started thinking what I might do and found I didn’t have much to offer. I just accepted that I wasn’t the type to have a career.
I then found myself a job, looking after two little girls. It wasn’t too hard at first. But the problems began when I agreed to live in, so that I would be there if my boss had to go out for business in the evening. We agreed that if I had to work extra hours one week, she’d give me time off the next. But unfortunately, it didn’t often work out. I was getting extremely tired and fed up because I had too many late nights and early mornings with the children.
One Sunday, I was in the park with the children and met Megan who used to go to school with me. I told her about my situation. She suggested that I should do a course and get a qualification if I wanted to work with children. I didn’t think I would be accepted because I didn’t take many exams in school. She persuaded me to phone the local college and they were really helpful. My experience counted for a lot and I got a part-time course. I had to leave my job with the family and got work helping out at a kindergarten.
Now I have got a full-time job there. I shall always be thankful to Megan. I wish I had known earlier that you could have a career even if you aren’t top of the class at school.
47. What is the author’s present job?
A. Working part-time in a college. B. Taking care of children in a family.
C. Helping children with their schoolwork. D. Looking after children at a kindergarten.
48. When staying with the two girls’ family, the author _______.
A. was paid for extra work B. often worked long hours
C. got much help from her boss D. took a day off every other week
49. What has the author learned from her own experiences?
A. Less successful students can still have a career.
B. Qualifications are necessary for a career.
C. Hard work makes an excellent student.
D. One must chose the job she likes.
50. What does the underlined sentence probably mean?
A. The boss didn’t go out to work very often.
B. The boss often failed to keep his agreement with the writer.
C. The writer couldn’t go out to find another job.
D. The writer seldom had any chance to work outside.
Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing or whistle when you are happy.
Some scientists believe that birds do sing some of the time just because they are happy. However they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.
Do you know what a ‘territory’ is? A territory is an area that an animal, usually the male, claims (声称) as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your yard and house are your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.
If so, you have actually scared the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting（筑巢）season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.
Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs.
You can see that birds have a language all their own. Most of it has to do with attracting mates and setting up territories.
43. Some scientists believe that most of the time bird’s singing is actually________.
A. an expression of happiness B. a way of warning
C. an expression of anger D. a way of greeting
44. What is a bird’s ‘territory’?
A. A place where families of other species are not accepted.
B. A place where a bird may shout at the top of its voice.
C. An area for which birds fight against each other.
D. An area which a bird considers to be its own.
45. Why do birds keep on singing at nesting season?
A. Because they want to invite more friends.
B. Because their singing helps frighten outsiders away.
C. Because they want to find outsiders around.
D. Because their singing helps get rid of their fears.
46. How does the writer explain bird’s singing?
A. By comparing birds with human beings. B. By reporting experiment results.
C. By describing birds’ daily life. D. By telling a bird’s story.
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40. Some of the four books were illustrated in order to_________
A. help readers understand them B. persuade readers to buy them
C. reduce the cost of them D. make them suitable to different readers
41. If you buy the four books on April 1, 2006, your will have to pay_______ for them.
A. $129.38 B. $111.93 C. $64.69 D. $34.90
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A. introduce the four books to readers B. help children to learn English
C. enrich students knowledge about nature D. sell the four books to students