题目列表(包括答案和解析)
A black hole is created when a large star burns out. Like our sun, stars are unbelievably hot furnaces (熔炉) that burn their own matter as fuel. When most of the fuel is used up, the star begins to die.
The death of a star is not a quiet event. First there is a huge explosion. As its outer layer is blasted off into space, the dying star shines as brightly as a billion suns.
After the explosion gravity pulls in what’s left of the star. As the outside of the star sinks toward the center, the star gets smaller and smaller. The material the star is made of becomes tightly packed together. A star is so dense that a teaspoon of matter from it weighs billion of pounds.
The more the star shrinks, the stronger the gravity inside it becomes. Soon the star is very tiny, and the gravity pulling it in is unbelievably strong. In fact, the gravity is so strong that it even pulls light into the star! Since all the light is pulled in, none can go out. The star becomes black when there is no light. Then a black hole is born!
That’s what we know about black holes. What we don’t know is this: What happens inside a black hole after the star has been squeezed into a tiny ball? Does it keep getting smaller and smaller forever? Such a possibility is hard to imagine.
But if the black hole doesn’t keep shrinking, what happens to it? Some scientists think black holes are like doorways to another world. They say that as the star disappears from our universe, it goes into another universe. In other words a black hole in our universe could turn into a “white hole” in a different universe. As the black hole swallows light, the white hole shines brightly—somewhere else. But where? A different place, perhaps, or a different time — many years in the past or future.
Could you travel through a black hole? Right now, no. Nothing we know of could go into a black hole without being crushed. So far the time being, black hole must remain a mystery.
Black holes are a mystery—but that hasn’t stopped scientists from dreaming about them. One scientist suggested that in the future we might make use of the power of black holes. They would supply all of Earth’s energy needs, with plenty to spare. Another scientist wondered if a black hole could some day be used to swallow earthly waste—a sort of huge waste disposal(处理) in the sky!
When the star begins to die ______.
A. there is no fuel left in it B. its outer layer goes into space first
C. a huge explosion will happen D. it doesn’t give off light any longer
Which of the following doesn’t help produce a black hole?
A. The gravity inside the star is very strong. B. The light can’t go out of the star.
C. The star becomes smaller and smaller D. The dying star shines very brightly.
The black hole ______.
A. continues becoming smaller and smaller all the time
B. goes into another universe and becomes a white hole
C. can pull in everything we know of in the world
D. will appear at another place at a different time
What’s the best title for this passage?
A. A New Scientific Discovery: Black Holes
B. How Do Black Holes Come Into Being?
C. What Are Black Holes?
D. Travel Through A Black Hole
A couple of years ago,before a trip to China,Nicole Davis and her US women’s volleyball teammates were warned about the prominence (显著、突出) of coach “Jenny” Lang Ping in her native country.
“I was pushed over by Chinese journalists while I was just trying to put my luggage on the bus,”said Davis.
Known as the “Iron Hammer” for her punishing spikes(扣球),Lang made it possible for China to dominate in the sport in the early 1980s.She was a key player on China’s 1984 Olympic gold medal winning team.
When the US team arrived for the Olympics,Lang,48,who is from Beijing,had to take a different route to avoid a crowd of reporters and fans.
Then came the greatest moment to Lang：While the US team was playing in a packed gym,at least 8,000 Chinese fans unfurled an American flag.
“That really says it all,” Davis said.“They look at her as an icon(偶像)．I’m sure it’s hard for them to see her coaching another country,but they love her so dearly that her success is their success.”
The loyalty of the Chinese fans was tested on Friday,when China lost a match to the US.
“It’s a pity that China lost the match,but I’m still glad that Lang Ping’s team won,since she is the pride of China’s volleyball,” said Liu Chengli,a spectator.“We also cheered for
Lang’s victory.”
Lang said she just tried to stay professional when the two teams meet.“It doesn’t matter if we play China or any other team.It’s the same.” Lang said.
Davis said she and her teammates could not have imagined the passion for volleyball among Chinese because the sport was lack of popularity in the US. The reception from Chinese fans has touched the US players,said US volleyball player Lindsey Berg.
“It’s such an honor to be here and play for our coach here in China,”she said.“The amount of support that the Chinese give to her and us has been tremendous.The whole event has been unbelievable.”
What’s the passage mainly about?
A．Staying professional. B．Cheering for the Iron Hammer.
C．A match between China and the US. D．Lang Ping’s career as a coach.
Lang Ping avoided meeting the reporters and fans probably because she ________.
A．was afraid to be questioned about her strategy
B．didn’t want to be paid much attention to
C．disliked to be with her fans
D．didn’t want to disturb public order
What does the underlined word “unfurled” exactly mean?
A．destroyed completely B．tore into pieces
C．spread out to the wind D．rolled up
What does Lang Ping mean by saying “It doesn’t matter if we play China or any other team.”？
A．American Volleyball Team will beat any team.
B．Chinese Volleyball Team is the same as other teams.
C．She just tried to stay professional.
D．The results of each match will be the same.
What impressed the US team players most?
A．The tolerance of Chinese people.
B．The popularity of volleyball in China.
C．Lang Ping’s coaching skills.
D．The loyalty for volleyball of the Chinese.
A
Pronouncing words of a language is a skill. Every normal person is expert in the skill of pronouncing their own language; but few people are ever skilled at pronouncing foreign languages. Now there are many reasons for this, some obvious, some perhaps not so obvious. But I suggest that the reason why people in general do not speak foreign languages much better than they do their own language is that they fail to grasp the true nature of the problem of learning to pronounce, and never set about solving it in the right way. Far too many people fail to realize that pronouncing a foreign language is a skill-one that needs careful training of a special kind, and one that cannot be gained by just leaving it to take care of itself. I think even teachers of language, while recognizing the importance of a good accent, tend to neglect(忽略), in their practical teaching, the branch of study which has something to do with speaking the language. So the first point I want to make is that English pronunciation must be taught. The teacher should be prepared to devote some of the lesson time to this, and by his whole attitude(态度)to the subject should get the student to feel that here is a matter worthy of receiving close attention, thus when other aspects(方面)of English, such as grammar or spelling, are allowed for the moment, to take second place, there is something else.
Except for the question of time given to pronunciation, there are two other requirements for the teacher: the first, knowledge; the second, technique.
1. Why don't people speak a foreign language better than they speak they native language?
A. Because they can't grasp the nature of the problem of learning to pronounce.
B. Because they think pronouncing a foreign language is a impossible.
C. Because they never solve the problem in any way.
D. Because they pay more attention to pronunciation than anything else.
2. What is the passage mainly about?
A. Grammar should be paid no attention to.
B. Pronunciation is the most important aspect in learning a foreign language.
C. Spelling should not be taught in class.
D. Knowledge and technique are unnecessary in learning a foreign language.
A study of English learning problems was carried out among a total of 106 foreign students. It shows that most students considered understanding spoken English to be their biggest problem on arrival. This was followed by speaking. Writing increased as a problem as students discovered difficulties in writing papers that they were now expected to hand in. Reading remained as a significant(显著的) problem.
The information gained helped us in determining where special attention should be paid in our course. Although many students have chosen to join the course with a reasonable motivation(动机), we considered it important to note what seemed to encourage interest. Nearly all the students have experienced some kind of grammar-based English teaching in their own country. To use the same method would be self-defeating because it might reduce motivation, especially if it has failed in the past. Therefore a different method may help because it is different.
Variety of activity was also seen as a way of maintaining(保持) or increasing motivation. Several years ago we had one timetable that operated throughout, but we soon found that both the students and the teachers lost interest by about halfway through the ten weeks. This led us to a major re-think, so finally we brought it into line with the expressed language needs of the students.
10. What is the text mainly about?
A. Foreign students have more problems.
B. There are many ways to improve English.
C. Teaching should meet students’ needs.
D. English learning problems should be studied again.
11. Writing became a bigger problem when foreign students________.
A. had to write their papers
B. became better at speaking
C. became less interested in reading
D. had fewer problems with listening
12. We may infer from the last two paragraphs that ________.
A. different teaching methods should be used
B. grammar-based teaching seems to be encouraging
C. English courses are necessary for foreign students
D. teaching content should be changed halfway.
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