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.

In many classrooms, it's not  16  to find students spinning (???) their pens  17  they listen to their teachers.

     Pen-spinning is also popular  18  Japanese students. It is a form of entertainment. Recently, a pen-spinning competition was held in Tokyo, Japan. Ryuki Omura, a 16-year-old high school student, became the first pen-spinning   19  .

     276 people took part in the competition. The came from different age groups. Some were students   20   some were office workers. First, they   21   the videos of their pen-spinning skills to the organizer's website. Then some of them came to the last round in Tokyo. 22   of them had 30 seconds to show their skills in front of 400 people,   23  reporters and fans. Omura took a pen from his little finger to the rest fingers, then to his palm(????) and the back of his hand. His wonderful show made him   24   the champion.

    Omura said he began learning pen-spinning only about 14 months ago. He did  25 in the competition. If you like to spin your pen, you can practice it in your spare time. But when you are in the class, please don't do that.

1.A. difficult                B. easy               C. common

2.A. before                  B. when                C. after

3.A. for                    B. between              C. among

4.A. chairman               B. captain              C. champion

5.A. or                     B. and                  C. with

6.A. were sent              B. sent                 C. was sent

7.A. each                  B. Both                  C. Every

8.A.includes                 B. included              C. including

9.A. become                B. became                C. becomes

10.A. quite good            B. quite well            C. quite better

阅读短文，判断下列句子是否符合短文内容。符合的写“A”，不符合的写“B”。

Water is the most important in our lives. Not Many people understand this but it’s quite true. The human body can go without food for a long time. We’ve got many examples for this. Yet two or three dayswithout water can usually make people die. Man can’t live without water.
Many people don’t understand how much water the human body needs to work well, and many people, especially young people, do not drink enough water, even in very hot weather. About two thirds of our body is water. When we do sports, some of the water will get away from our body. If we don’t drink some water, our body won’t have enough water. And if we don’t have enough water, we’ll feel tired and many of us will get ill. So you know how important water is to us.
But at present we face water crisis(危机). Water is becoming less and less. So， we should protect water resources(资源) and try our best to save water in our daily life. Here are some tips for saving water:
1. Turn off the tap(水龙头) in lime.
2. Take shorter showers.
3. Don’t let water run while washing your face and reuse the water after we finish washing.
4. Encourage your friends and neighbors to join in the action of saving water.
【小题1】 Nobody can live without water.
【小题2】 About one third of our body is water
【小题3】 If one doesn't have enough water, he’ll feel tired and may get ill.
【小题4】 We’d better take longer showers and let water run while washing.
【小题5】 It’s our duty to protect water resources and save water.

New York is one of the last large American cities to have some of its policemen on horseback. The New York police have 170 horses working in certain parts of the city. The horses are expensive to feed, but it is even more expensive to look after them. Because the horses must walk on the streets, they need special horseshoes. In fact, they need more than 8,000 of them each year. Every police horse in New York gets new shoes every month. Keeping these shoes in good repair is the job of six blacksmiths(铁匠). There are only about thirty-five of these blacksmiths in the whole United States. The cost of shoeing a horse is between twenty dollars and thirty-five dollars, and it takes a good blacksmith two or three hours to do the job.

A blacksmith’s job is not an easy one. He must be able to shape a shoe from a piece of metal and then fit it to the horse’s foot. The blacksmith must bend over all the time when he is fitting the shoe and must hold the weight of the horse’s leg while he works. Clearly, a blacksmith must be very storng. But even more important, he must be able to deal with horses---for before the blacksmith can begin his work, he has to get the horse to lift its leg.

One of the blacksmiths in New York is James Corbin. He came to the country from Ireland in 1948. He not only makes horseshoes for the police but also works for a group of horse owners near the city. Corbin became interested in blacksmithing because his father did it, and, as he puts it, “It’s a good way to make a living.”

1.According to the reading passage, a blacksmith must be likely a ________________ man.

A. clever????????????? ????????????? ????????????? ????????????? B. rich????????????? ????????????? ????????????? ????????????? C. strong????????????? ????????????? ????????????? ????????????? D. lucky

2.James Corbin became a blacksmith because he ________________.

A. was interested in horses

B. was needed by the policemen

C. drew a picture of the horseshoe

D. had to make a living

3.In the reading passage “to shape a shoe” is to ________________.

A. fit it on the horse’s foot

B. use it for two or three hours

C. make the form of a horseshoe from a piece of metal

D. draw a picture of the shoe

4.The best title for the passage is “________________”.

A. Policemen on Horseback

B. Blacksmiths and Horseshoeing

C. James Corbin, a Blacksmith

D. Horseshoeing is a Good Way to Make a Living

5.Which of the following is true?

A. Only a few large American cities have some policemen on horseback.

B. New York is the only city in America to have some policemen on horseback.

C. Policemen on horseback enjoy travelling around the United States.

D. Policemen on horseback are less expensive than those in cars.

Here are some facts about homes in the United States and the people who live in them. In the early 1990s, about 50% of the Americans owned their homes and the rest rented(租) their homes. The rented homes were usually apartments(公寓).

74% of the people in the US make their homes in or around cities. 26% live in the country. Dogs live in about 40% of all homes in the US. About half that number have cats.

Families in the US are becoming smaller. On the average(平均), 2.64 people lived at home in the early 1990s. In the1960s, the average was 3.5.

Half of the teenagers in the US have their own bedrooms.

An American moves, on the average, twelve times in his or her life. In Japan a person moves about five times, and in England a person moves eight times.

1.Most Americans live ________, according to the passage.

A. in or around the cities     B. in cities       C. around cities          D. in the country

2.Ho w many American families own a cat?

A. About 40%.                     B. About 20%. C. About 74%.     D. About 26%.

3.On the average, there were ________ people in an American family in 1994.

A. more than 3                    B. only 3.5        C. less than 2              D. about 2.64

4.________ in the US have their own bedrooms.

A. All of the people                                           B. Most of the children  

C. Half of the teenagers                              D. Only some of the teenagers

5.What can we learn from the passage?

A. In the early 1990s, most of the Americans owned their homes.

B. Families in the US are becoming bigger and bigger.

C. A Japanese moves more often than an American.    

D. An American moves more often than an Englishman.