DNA is the whole “map” of the human body. It is something that all human 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 those small parts 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(細(xì)胞) to build its parts. So far, scientists have found all the words in the DNA map, but we still do not 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(吸引人的), or stop sick people getting jobs.

1.What did the two scientists find in 1961? They found ______.

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. those small parts are written in the DNA with a special language

2.Which one is not true according to the article?

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. DNA is the whole “map” of the human body.

D. DNA tells the cell to build its parts.

3.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 and bad.

4.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.

Americans' Weekends

What do American families usually do on weekends?1.. Running, playing volleyball, biking and swimming are all popular sports. The weekend is also a time for American families to work in the yard, the garden or the house.2.. Sometimes some families spend the weekend painting their houses. They are busy on weekends, but they are very relaxed.

3.. They can go to the park, the zoo, the cinema and many other places they want to go.4.. Sometimes they help their parents do some work at home and their parents will take them to the restaurant to have a good dinner.5..

A.At weekends, some people like to stay at home.

B.They think the weekend is the best time of a week.

C.Many American families often do some sports on weekends.

D.Children are also very happy on weekends.

E.Children don't like weekends because they have a lot of homework to do.

F.They can play games, fly kites and play any ball games.

G.Many families plant flowers and vegetables in the garden.

請(qǐng)閱讀下面對(duì)話，根據(jù)對(duì)話內(nèi)容補(bǔ)上所缺句子，使對(duì)話通順、合理、意思完整。（每空一句）

A: Hello, Tom! 1.

B: I'm helping my mother cook in the kitchen.

A: Do you know about the rainstorm yesterday afternoon?

B: Yes. It was terrible.

A:2.

B: I was at school at that time.

A: 3.

B: I was having P.E. Class outside. I got wet.

A:4.

B: My father drove me home. The rain was really heavy.

A: Oh, I was making my way to my cousin's birthday party at that time.

B:5.

A: I got to the party at about 7:00. The party had just finished.

B: What a pity!

A.What did you think of it?

B.How did you get home?

C.When did you get to the party?

D.What were you doing at that time?

E.What was the weather like?

F.Where were you at that time?

G.What are you doing?

由于父母的溺愛，現(xiàn)在許多孩子基本不做學(xué)習(xí)以外的事情，導(dǎo)致獨(dú)立生活能力不強(qiáng)。請(qǐng)你根據(jù)下面表格中的內(nèi)容按要求用英語寫一篇60-80詞的短文，談?wù)勛鳛橹袑W(xué)生，我們應(yīng)該如何培養(yǎng)自己的獨(dú)立性。

注意：開頭和結(jié)尾已給出，不計(jì)入總詞數(shù)，可適當(dāng)發(fā)揮。

要求句子通順，語法正確，并注意標(biāo)點(diǎn)符號(hào)和大小寫。

As middle school students, it's very important for us to be independent. What should we do to make us independent?

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

I think if we keep on doing these, we'll become more and more independent.

—Where did Mr. Smith go on ______ vacation?

—He had ______ enjoyable trip to Sanya.

A./; a B.a; an C./; an D.the; the

—Is there in the room? — . There is only one old desk.

A.anything special; Yes B.anything special; No

C.special anything; Yes D.special anything; No

—Who helped you clean the classroom yesterday?—_______. I did it all by myself.

A.Someone B.Anyone

C.Everybody D.No one

—What about_____________?

—That’s a good idea,

A.go shopping B.going shop C.going shopping D.go to shop

—Are you late for class?

—______.

A.Yes, sometimes B.Yes, never C.No, ever D.No, usually

—Who will go to the ______ for teeth cleaning with you, Jim?

—My brother.

A.policeman B.dentist C.artist D.musician