Which one is right according to “不止一次 ? [ ] A．not one time B．over once C．more than one time D．more than once 题目和参考答案——青夏教育精英家教网—

题目内容

Which one is right according to “不止一次”?

[　　]

A．not one time

B．over once

C．more than one time

D．more than once

答案：D

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DNA is the whole “map” of the human body. It is something that all humans have, and it tells the body what to do. DNA is the reason that we look like our parents, because we get some of their DNA to make our own.

People have been trying to understand the human body for a long time. In 1860, Mr. Mendel discovered why we look the same as other people in our family. It is because of small things called “genes”（基因）in our body. In 1953, two scientists, Watson and Crick, found out that genes are really messages. They’re written in the DNA with a special language.

In 1961, another two scientists found the first “word” that they could understand in that language. It shows how DNA tells the cell (细胞）to build its parts. So far, scientists have found all the words in the DNA map, but we still don’t understand what they all do. By understanding what just one “word” means, we can help to save people from several illnesses. So the more we understand, the more doctors will be able to do.

Most people hope that this will help to make better medicine and help sick people. Other people worry that when we learn more “words” and find out more information, we will use it in the wrong way. Just to make people more attractive (有吸引力的), or stop sick people getting jobs.

1.When did Mr. Mendel discover why we look the same as other people in our family?

A. In 1680.????????????? ????????????? B. In 1860.????????????? ????????????? C. In 1953.????????????? ????????????? D. In 1961.

2.Watson and Crick found ______ in 1953.

A. all the words in the DNA map???

B. small things called “genes” in our body

C. the first “word” they could understand in that language

D. genes are written in the DNA with a special language

3.How can we help sick people if we understand more “words” in the DNA map?

A. Make better medicine.????????????? ????????????? ????????????? B. Make them get jobs.

C. Make maps for them.????????? ????????????? D. Make them attractive.

4. Which one is NOT true according to the passage?

A. We look like our parents because of “genes” in our body.

B. We have understood what all the words in the DNA map do.

C. Scientists have found all the words in the DNA map.

D. DNA tells the cell to build its parts.

5.What do people think about this research about DNA?

A. It can be only bad.

B. It can be only good.

C. It can be good but won’t work.?????????????

D. It can be good or bad.

Baseball is one of the favorite sports in the U.S.A. Children play baseball in sports fields or parks.

At summer picnic, there is often an informal（非正式的） baseball game. Boys and girls, young and old take turns to play. There are nine players on each team.

The baseball season goes from April to September. During this time, baseball matches are showed on TV and members of the important baseball teams become America's heroes（英雄）. At the end of the season, the two top teams play against each other. Many baseball fans go along to watch the game. Millions of others listen to the radio or watch television. People seem to talk only about the game. Even long after it is over, they still talk about the result and the players.

American football is perhaps the most popular sport in the U.S.A. The football season begins when the baseball season ends. More people are interested in football than baseball. When there is an important game, thousands of people sit beside radios or in front of television sets to get the result.

1. There are players on each baseball team.

A. seven B. eleven C. four D. nine

2. The baseball season goes from .

A. April to September B. March to September

C. January to September D. May to September

3. follows the baseball season in the U.S.A.

A. The basketball season B. The football season

C. A basketball match D. A football match

4.Which one is NOT right?

A. Boys and girls like baseball games.

B. More people are interested in football than baseball.

C. Just young boys and girls take turns to play in the informal baseball game.

D. Children sometimes play baseball in parks.

5. is perhaps the most popular in the U.S.A.

A. Baseball B. Table tennis

C. Basketball D. American football

I had to buy ________ these books because I didn't know which one was the best.

A. all B. none C. both D. neither

Old John went to see a doctor. The doctor examined and said, “ Medicine can’t help you. You must have a good rest. Go to a quiet place for a month, go to bed early, drink some milk, walk a lot and smoke one cigar (雪茄) a day.”

“Thank you very much,” said old John, “ I will do everything you say.”

A month later old John came to the doctor again. “ Well, I’m glad to see you. You look much younger.” Said the doctor.

“Oh , doctor,” said old John, “I feel quite well now. I had a good rest. I went to bed early, I drank a lot of milk, and I walks a lot. Your advice certainly helped me. But you asked me to smoke one cigar a day, and the one cigar a day nearly killed (杀) me at first. It’s no joke to start smoking at my age.

1.The doctor _________________________________.

A．asked him to take some medicine

B．asked him not to take any medicine

C．didn’t say any word about medicine

D．gave him some medicine

2.Old John __________________ after a month.

A．didn’t get well B．got well

C．was old D．got bad

3.Which one is true?

A．Old John smoked before

B．Old John smoked less than(比) before

C．Old John didn’t smoke before

D．Old John didn’t smoke a cigar a day

4.When Old John was ill, he looked______________.

A．young B．old C．younger D．older

5.The best title(题目) of this passage should be____________.

A．Old John B．Old John is ill

C．The Doctor’s Advice D．The Doctor

根据句子要求, 用括号中词的正确形式填空，并将答案写在答题纸相应题号的横线上。

1.Mum asked children to eat it (two) a week.

2.It’s very important for students (sleep) eight hours a night.

3.How many (foot) does a dog have?

4.Don't ________ (worried) about your English. I can help you.

5.Your advice sounds ___________ (interest).

6.This song is very popular in many (west)countries.

7.Thanks for your (invite) to your house next week.

8.His bag is not as (heavy) as mine.

9.Which one is a little (far), this one or that one?

10.She likes to have friends who are (difference) from her.

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