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When the weather is hot, you go to a lake or an ocean. When you are nears lake or an ocean, you feel cool. Why? The sun makes the ear& hot, but it cannot make the water very hot. Although the air over the earth becomes hot, the air over the water keeps cool. The hot air over the earth goes up. Then the cool air over the water moves in and takes the place of the hot air. When you are near a lake or an ocean, you feel the cool air. When it moves in, you feel the wind. And the wind makes you cool. Of course, scientists cannot answer all of our questions, ff you ask, "Why is the ocean full of salt?", scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks (裂开). Rain falls into the cracks .The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask, "What happens to the salt in the ocean?" The ocean does not get more salty every year. Scientists are not sure about the answer to the question. We know a lot about our world. But there are still many answers that we don't have, and we are curious(好奇的).
1. Now scientists know_______
A. what makes people feel cool near a lake or an ocean in summer
B. everything about the ocean
C. why the ocean doesn't get more salty
D. what happens to the salt in the ocean
2. In this passage the word "cracks" means _______in Chinese.
A. 山谷 B.裂缝 C. 地壳 D. 岩浆
3. Which of the following is not true?
A. The sun makes the earth hot.
B. The sun cannot make the water very hot.
C. The wind makes you tout.
D. The hot air over the water moves in and takes the place of the cold air
4. People are always curious about the world because______
A. they know nothing about it
B. they know little about it
C. there are many answers they do not have
D. both. A and B
5. The main idea of this passage is that ______
A. the salt in the ocean comes from rocks
B. scientists can explain (解释) everything we want to know
C. people feel cool when they are near a lake or an ocean
D. scientists can explain many things, but not everything
查看习题详情和答案>>‘Where is the university?’is a question many visitors to Cambridge ask, but no one can give them a clear answer for there is no wall to be found around the university.The university is the city.You can find the classroom buildings, libraries, museums and offices of the university all over the city.And most of its citizens are the students and teachers of the thirty-one colleges.Cambridge was already a developing town long before the first students and teachers arrived 800 years ago.It grew up by the river Granta, as the Cam was once called.A bridge was built over the river as early as 875.In the fourteenth and fifteenth centuries more and more land was used for college buildings.The town grew much faster in the nineteenth century after the opening of the railway in 1845.Cambridge became a city in 1951 and now it has a population of over 100,000.Many young students want to study at Cambridge.Thousands of people from all over the world come to visit the university town.It has become a famous place all around the world.
1.Why do many visitors ask the same question?
_________________________________
2.What does‘its’refer to in‘…most of its citizens are…’?
_________________________________
3.When did the university begin to appear?
_________________________________
4.Why did people name the place Cambridge?
_________________________________
5.How many people live in Cambridge now?
_________________________________
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| Most students want to study well. But what is the best way to study? This is a very important question. Different people study in different ways. Some Chinese students often 1 very hard 2 long hours. This is a 3 habit, but it is not a better way to study. A good student must 4 enough sleep, enough food and enough rest. Every 5 you 6 to take a walk or play basketball or ping-pong or sing a song. When you 7 to your studies, you'll find yourself 8 than before and you'll learn more. Perhaps we can 9 that learning English is like taking Chinese medicine, we mean that like Chinese medicine, the effects of your study 10 slowly but surely. Learn every day, and effects will come just like Chinese medicine. Keep on trying hard till you are successful. | |||
| ( )21. A. play ( )22. A. at ( )23. A. best ( )24. A. have ( )25. A. month ( )26. A. want ( )27. A. begin ( )28. A. stronger ( )29. A. talk ( )30. A. return |
B. study B. in B. better B. do B. week B. need B. return B. weaker B. guess B. come |
C. sleep C. for C. good C. want C. day C. hope C. go C. strong C. say C. give | |
is to speak to a foreigner. This week's question comes from a student who is eager to start a conversation
with the foreigners he sees every day. One student asks, "Is it Okay to try to talk to foreigners I see in the
street?"
The answer is yes or no, but probably no! If you see a foreigner who looks lost, it is polite to ask him,
"May I help you?" But, otherwise, you should probably let them get on with their business. Situations,
however, do exist (存在) where it is quite all right to talk to foreigners. If a foreigner enters your school,
office, shop or restaurant, for instance (例如), feel free to ask him (for example):
— What is your name?
— Where do you come from?
— What do you think of Beijing?
— How long will you stay in Beijing?
There are also situations where it's Okay to talk to foreigners in public places. If you see a foreigner
alone in a restaurant, bar or coffee shop, it may be appropriate (合适的) to ask him or her:
— Is this seat free?
— Do you mind if I talk to you in English?
You can probably help them if they are new to China and if they are alone. You may be able to make them
feel more welcome.
After a few such questions, you should know whether this person wants to talk to you or not. If they ask
you similar questions, or if they give long, informative answers, you're in luck. If not, then give them their
privacy (独处). Talking to strangers is fun if you choose the right time and place.
B. Americans
C. your classmates
D. French people
B. it is polite to interrupt foreigners in a conversation
C. it is impolite to interrupt a foreigner when he or she is on business
D. it is impolite to help a foreigner find his way
B. Have you eaten your dinner?
C. Can you help me with my English?
D. Nice to meet you.
B. talk with foreigners in an accepted way
C. have a meal with foreigners in a restaurant
D. move to a place where a foreigner lives
B. Health
C. Language
D. Business