Tom and Fred were talking about the year 2050.
　　“What will   36  be like in the year 2050?” asked Tom.
　　“I don’t know,” said Fred. “What do you think?”
　　“Well, no one knows. But it is __37__ to guess,” said Tom. “In the year 2050 everybody will carry a pocket (袖珍) __38___. The computer will give people the __39__ to all their problems. We shall all have telephones in our pockets,__40___ . And we’ll be able to talk to our friends all over the world. Perhaps(也許) we’ll be able to ___41__ them at the same time. Machines will do ___42___of the work, and people will have more__43___. Perhaps they will work only two or three days a week. They will be able to fly to the moon by spaceship and spend their holidays there.”
　　“I’m very _44__to hear that. I hope to fly to the moon. And I hope I’ll be able to live _45___,” said Fred. “Won’t that be interesting? Just like a fish.”

Is the whale the world’s largest fish? No. It looks like a fish, but it is really a mammal (哺乳動(dòng)物). Then what’s the world’s largest fish? It’s the whale shark.

Although the whale shark is our biggest fish and lives in many oceans around the world, few people have ever heard of it. Scientists have not been studying whale sharks for very long. Much more needs to be learned about them.

A whale shark is sometimes called a “gentle giant (溫柔的巨人)”. It likes to be alone and doesn’t care a bit about divers or humans. The biggest whale shark weighed 24,250 pounds and was nearly 40 feet long. This makes it heavier and longer than a school bus.

Inside its huge mouth are great numbers of very small teeth. To count all of them, you’ll need to do some math. The whale shark’s teeth are arranged in rows. There are between eleven and thirteen rows on each jaw (顎) and around three hundred teeth in each row.

However, the whale shark rarely uses its teeth. It does not chew or bite its food. Large amounts of water are pulled into its mouth and then pushed out through its gills (鰓).

For a few months every year, a group of whale sharks comes to Ningaloo Reef, off Western Australia. This gives scientists a wonderful chance to study the large fish. Whale sharks do live in other oceans of the world, but no one knows their population. It is possible that our biggest fish may need protecting. It is one of the reasons why scientists continue to learn all they can about these gentle giants.

51. Little is known about whale sharks because scientists _____.

A. are not interested in learning about them

B. find them too difficult to catch

C. do not know the best places to find them

D. have studied them for a short time

52. Which sentence can tell us that whale sharks are gentle?

A. They have large mouths.

B. They leave divers alone.

C. They have small eyes.

D. They live in many oceans.

53. How does the writer help us know what the whale shark’s mouth looks like?

A. By giving reasons.

B. By describing colors.

C. By comparing sizes.

D. By using numbers.

54. The fifth paragraph is mainly about _____.

A. how a whale shark eats

B. what a whale shark eats

C. how different fish use their gills

D. what’s inside a whale shark’s mouth

55. Which of the following is the best title for the article?

A. Gentle Giants                                         B. The Diary of a Sailor

C. The Largest Animal                                 D. My Life on the Sea

Betty and Lingling are talking about the future. “What will our life 　　36　 in the future?”

asks Betty. “I don’t know,” says Lingling. “What do you think?” “Well, no one knows, but it’s interesting 　 37 .” “We will 　38 go to school. We 　39 our lessons on the Internet. When we have problems(難題), . The teacher will 40 us the answers on the Internet.

“Now almost everyone 　41 a mobile phone ,but_ 42 twenty years everyone will carry a

pocket computer.” “A lot of people will live and work under the sea.” “Machines will do lots of 43 _, and so people will have more 　44 .” “ We will have some rice, vegetables and fruit for meals every day. We will not get any meat to eat because there will be　 45 animals. “

“ Oh , our way of life in the future will change a lot.”

( 　 ) 36. A. be like　 B. be 　　　C. look like 　 D. like

( 　 ) 37. A. guess　　 B. guessing C. guesses　　 D. to guess

( 　 ) 38. A.often　　 B.never　　 C.usually　　 D.always

( 　 ) 39. A. will think B. will bring C. will learn　 D.will help

( 　 ) 40.A. take　　 B. give　　　 C. talk　　　 D.drive

( 　 ) 41. A. have　　 B. has　　　　 C. is　　　　 D. are

( 　 ) 42. A. On 　　　B. In　　 　 C. At　　 　　D. Of

( 　 ) 43. A. job 　　 B. work　 　 C. works　 　 D. working

( 　 ) 44. A. busy time B. busy times 　C. free times D. free time

( 　 ) 45. A. few　 B. many　　 C. much　　　 D. some

Do you know why you sleep? You may think it’s because you’re tired. Or perhaps you’ve been told sleep is good for you. Yet no one knows exactly why or how people sleep.
Until the early 1950s, most scientists thought the body and brain rested during sleep. Then a scientist watched people sleep. He noticed that during periods of between 5 and 30 minutes each, sleepers’ eyes made rapid movements, as if they were watching something. He called these periods REM sleep, for Rapid Eye Movement. Periods when sleepers’ eyes did not move he called non-REM sleep.
Whenever the scientist woke people during REM sleep, they were having vivid dreams. Measurements showed that sleepers’ pulses（脈搏）went up quickly during REM sleep. Their breathing, heartbeat, and the blood going to the brain also increased. Far from being a time of rest, REM sleep is a time when the body is hard at work. Scientists still don’t know the reason for this. Some believe REM sleep makes learning easier. Babies spend a lot of time in REM sleep. Because of this, some scientists believe that REM sleep helps the brain grow. Others think REM sleep is a time for the brain to empty the day’s garbage.
One thing all the scientists agree on is that sleep is necessary. Without enough sleep, people make mistakes. Most major car accidents happen during the early morning hours, when people are sleepiest.
【小題1】During REM sleep, a person’s breathing and heartbeat ________.

Tom and Fred are talking about the year 2020．"What will our world be like in the year 2020?""I don’t know."says Fred．"What do you think?""Well, no one knows, but It’s interesting to guess.""In the year 2020 everyone will carry a pocket computer. The computer will give people the answers to all their problems. We shall all have telephones in our pockets, too, and we’ll be able to talk to our friends all over the world. Perhaps we’ll be able to see them at the same time.""A lot of people will live and work under the sea. Perhaps there will be big towns, factories and farms under the sea, too.""Machines will do most of the work, and so people will have more holidays, perhaps they’ll work only two or three days a week. They’ll be able to fly to the moon by spaceship and spend their holidays there.""I’m looking forward(期待) to the year 2020. I hope to go to the moon!""And I hope I’ll be able to live under the sea."says Fred."Won’t that be very interesting? Just like a fish!"
【小題1】根據(jù)Tom and Fred are talking about the year 2020．及下文描述,可知他們談?wù)摰氖菍��?lái)的生活,故選D
【小題2】根據(jù)"Machines will do most of the work,可知選A
【小題3】根據(jù)""I’m looking forward(期待) to the year 2020. I hope to go to the moon!"描述,可知選C
【小題4】根據(jù)"And I hope I’ll be able to live under the sea."says Fred."Won’t that be very interesting? Just like a fish!"可知選B
【小題5】D
【小題6】Tom and Fred talked about          ．