On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could now read the whole “map” of the human body: DNA. DNA is something that everybody has, and it tells the body what to do. DNA is the reason that we look like our mother and father, 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, Gregor Mendel discovered a special reason why we look the same as other people in our family. It is because of small things named “genes” in our body. In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language.

　　In 1961, Marshall Nirenberg and Johann Matthaei found a message in DNA showing how DNA tells the cell (细胞) to build its parts. Scientists have now 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 save more people from several illnesses.

　　Most people hope that this will help make better medicine and help sick people. Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs. Man would have to meet a lot of trouble if DNA technology (技术) wasn’t limited (限制) in use.

1.When did we first know why we look like other people in our family?

A. In 1860. B. In 1953. C. In 1961. D. In 2000.

2.What did the two scientists first discover in 1961?

A. The “map” of DNA. B. A new illness.

C. The language of DNA. D. A message of DNA.

3.What can we do if we understand some “words” of the language inside the body?

A. Make people get new jobs.

B. Make medicine for illnesses.

C. Make maps of human.

D. Make people less attractive.

4.What do people think about this work?

A. It can cause good or bad results.

B. It can cause only good results.

C. It can cause good results but won’t work.

D. It can cause only bad results.

选择符合短文的正确答案

1. The husband and the wife went shopping　　   .　　　　　　　　　　　　  

A. by bus　　　　 B. in their car    　　C. by bike　　  D. on foot

2. They spent　　   in the shop doing their shopping.　　　　　　　　 

A. half an hour　　 B. four hours　　    C. one hour　　 D. eight hours

3. The　　   opened the car door in the end.　　　　　　　　　　　　

A. husband 　　   B. wife　　　　    C. policeman　　 D. owner of the car

4. The owner of the car was very angry to see　　   .　　　　　　　　　　　　

A. some one had opened his car door　　    B. the policeman standing by the car

C. his car was not there　　　　  　　　　 D. that there was a trouble

5. They didn’t know it was the wrong car until they looked at the　　 of the car.

A. color　　　　 B. owner　　　　   C. door　　　　 D. number

阅读与写作

　　A man lived in a tall building in the city of Moscow. He liked living there. It was usually very quiet, and he could see the park from his window. There was only one problem: the man upstairs. Every night, the man upstairs came back late. He always took off his shoes and threw them on the floor. At this time, the man downstairs was trying to sleep. But every night he heard the noise upstairs. Bang! One shoe. Bang! The other shoe. It was too bad. He found it very difficult to get to sleep and he was rather angry with the man upstairs. One day, the man downstairs went to talk to the man. He went upstairs and knocked at the door. The man opened it. With a smile the man from downstairs said: "I' m sorry to trouble you. "

　　"What is it?" asked the man.

　　"Well, every time you get back at night, you drop your shoes on the floor. It happens every night. The noise wakes me up. Would you please not do this?"

　　"I'm very sorry," said the man. "I won't do it again. "

　　The next evening the man upstairs came home from work late as usual. He was feeling very tired. He took off the first shoe and threw it on the floor. The he remembered the man down stairs.

　　So he took off the second shoe and put it under his bed very quietly. He had his supper, listened to the radio, read a newspaper and then went to bed. He was just falling asleep when there was a loud knock at the door. He opened it and saw the man from downstairs.

　　"Please!" said the man from downstairs. "Please drop the other shoe! I was waiting for the sound of the other shoe! I can't get to sleep!"

　　假设你就是住在楼下的那个人，请你根据这篇短文，用第一人称给你的朋友写一封抱怨信.

Dear friend,

　　 _________I______________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

Mrs. Ball had a son. His name was Mick. She 　26　him very much and as（因为）he was not a 　27　child, she was always afraid that he might 　28　ill. 　29　she usually took him to see the best 　30　 in the town four times a year and asked the doctor to look 　31　the son.

　  During one of these 　32　, the doctor gave Mick all kinds of tests(检查) and then said to him, “Do you have any trouble with your nose or ears ?” Mick 　33　for a second and then answered, “Yes, I 　34 _.”

　 Mrs. Ball was very 　35　. “But I’m sure you have 　36　told me that, Mick!” she said worriedly. “Oh, really?” said the doctor 　37　. “And what trouble do you have 　38　your nose and ears, my boy?” “Well,” answered Mick. “I always have trouble with them when I’m  39　my sweater off, 　40　 the collar (领子) is very tight (紧的).”

1.A．loved　　 B．hated　　C．missed　　D．cared

2.A．rich　　  B．clever　　C．strong　　D．happy

3.A．is　　    B．are　　　C．be　　　 D．were

4.A．Which　　B．Of　　　 C．But　　　D．So

5.A．player　　 B．teacher　 C．doctor　 D．1awyer 　

6.A．after　　  B．over　　  C．for　　  D．at

7.A．talkers　　B．times　　 C．visitors　 D．stays

8.A．waited　  B．thought　 C．stood　　 D．looked

9.A．did　　   B．do　　   C．does　　 D．doing

10.A．excited　  B．interested　C．pleased   D．surprised

11.A．already　　B．just　　  C．never　　 D．always

12.A．angrily　　B．seriously　C．happily　 D．hardly

13.A．for　　    B．at　　   C．of　　    D．with

14.A．turning　　B．taking　　C．keeping   D．putting

15.A．because　  B．but　　　C．although　D．till