第一节 单项填空(共15小题；每小题1分，满分15分)

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

21．Charlie Chaplin, who died in 1977, is ____ one of the greatest and funniest actors in ____ history of the cinema.

A. thought; the　　 B. considered; the　　 C. thought; /　 D. considered; /

20．What is mainly talked about in this passage?

　　　 A．The great human genome

　　　 B．The discovery of genes

　　　 C．Unlocking the genetic code

19．According to the passage, which of the following is NOT true?

　　　 A．If the genes can be found, scientists can study many new ways to cure illnesses.

　　　 B．The United States began genetic research early in the 19^th century.

　　　 C．Many medical companies show great interest in drawing the human genome map.

　　　 D．The scientists have made great progress in connecting some genes with the cancers.

18．According to the passage, which of the following countries is the most advanced in genetic

research?

　　　 A．Japan.　　　　　　　　 B．Germany.　　　　　　 C．The United States.　 D．China.

17．Why did the scientists work so hard at mapping the human genome?

　　　 A．Because the human genome can destroy many illnesses.

　　　 B．Because the human genome’s completion can help to get rid of many diseases.

　　　 C．Because they wanted to be better known than others.

　　　 D．Because the Human Genome Project can provide a lot of chances of work.

16．In the ad, William Stiles’ story is used simply to 　　　　.

　　　 A．make him known to car buyers

　　　 B．cause people to take notice of the car factory

　　　 C．make the ad much easier to understand

　　　 D．get more buyers to believe in this car

E

The Human Genome (基因组) Project, a great $ 3 billion, 15 – year task aimed at drawing the genetic map of humans, is now more than 90 percent completed. The scientific and medical communities are very excited about the chances genetic research provides for getting rid of diseases and prolonging human life. But those communities and policy makers are also careful about the scientific door they are opening as the project uncovers the mysteries of life.

For the last few years, the genetic advances in the fast developing field of biotechnology (生物技术) have provided material for all kinds of work, but the developments of modern science in unlocking the secrets of the human genetic code have opened a world of possibilities for human health, as well as for the popular imagination.

While European and Japanese researchers are making rapid progress in decoking (解码) human DNA, the leading organization for genetic research in the United States, which began in 1990, is “unlocking the code” of the human body to learn how to defeat fatal diseases. Already, the Human Genome Project has become widely known and praised for finding the genes connected with as yet terrible diseases, and making progress toward separating the genes that show a sign of breast cancer or AIDS.

Once these genes are found and studied, researchers can develop new ways to attack infections, and genetic diseases. Medical companies are very interested in mapping the human genome, as they expect to develop a lot of new drugs for these illnesses.

15．The underlined part in the second paragraph “I’ ve driven this car 295,000 hard miles” implies

that 　　　　.

　　　 A．he drove a long way, completely tired out

　　　 B．the road conditions were unusually bad

　　　 C．life was hard during his long ride

　　　 D．he had much trouble all the way

14．After buying the car, William Stiles 　　　.

　　　 A．drove it whenever he felt unhappy with it

　　　 B．had it tested in different kinds of conditions

　　　 C．drove it madly across the whole country as if he hated it

　　　 D．tested it in his field work to see how long it could last