相關(guān)習(xí)題
 0  44948  44956  44962  44966  44972  44974  44978  44984  44986  44992  44998  45002  45004  45008  45014  45016  45022  45026  45028  45032  45034  45038  45040  45042  45043  45044  45046  45047  45048  45050  45052  45056  45058  45062  45064  45068  45074  45076  45082  45086  45088  45092  45098  45104  45106  45112  45116  45118  45124  45128  45134  45142  151629 

科目: 來源: 題型:閱讀理解

The Human Genome 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 have provided material for all kinds of work, but the developments of modern science in unlocking the secrets of human genetic code have opened a world of possibilities for human health, as well as for the population imagination.

While European and Japanese researchers are making rapid progress in decoding (解碼) human DNA, the leading organization for genetic research in the Untied 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.

68. 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 provided a lot of chances of work.

69. 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

70. What is mainly talked about in this passage?

A. The great human genome.

B. The discovery of genes.

C. Unlocking the genetic code.      

D. Genes and scientists.

查看答案和解析>>

科目: 來源: 題型:閱讀理解

Most people think their time problems are outer, and that they are caused by the telephone, meetings, visitors, and delayed information or decisions. Although these problems often have a bad effete on them, as when people call or drop in, we usually contribute to them. We fail to have calls screened(審查) by a skillful secretary or assistant, or we leave our door open, actually assuring(保證)constant interruptions.

In almost all cases, it is possible to influence, if not control, it usually can cause problems, such as, slowness and indecision(猶豫不決), lack of self-discipline, the inability to delegate(委托), or the tendency to fight fires, to act without thinking, and to jump from task to task without finishing any of them.

Time is constant that cannot be changed. The clock cannot be slowed down or speeded up. Thus we cannot manage time itself. We can only manage our activities with respect to time.

The same skills are needed as those used in managing others—the abilities to plan, organize, delegate, direct, and control. Time management is simply self-management. It is impossible to be effective in any position without controlling one’s time effectively.

Successful time management does not mean working harder, but working smarter. All kinds of management skills must be used in the home and office to get most value from time. You must think ahead about what to do, and timely than others, making it get maximum results in the shortest possible period.

65. According to the writer, time problems _______.  

A. are caused by the telephone, meetings and visitors

B. are caused by delayed information or decisions

C. can be solved by self-management

D. can’t be controlled

66. It can be concluded from the passage that the abilities to plan, organize, delegate, direct and control should _______.

A. be used in managing others’ activities

B. be used in managing one’s own activities

C. not be used in time management

D. be used in managing both others’ and one’s activities

67. We can also draw a conclusion that the key to successful time management is ________.

A. working harder and harder

B. clever self-management

C. thinking of what to do, and how and when to do it

D. employing a skillful secretary

查看答案和解析>>

科目: 來源: 題型:閱讀理解

1970 was “World Conservation Year”. The United Nations wanted everyone to know that the world was in danger. They hoped that the governments would act quickly in order to conserve nature. Here is one example of the problem. At one time there were 1300 different plants, trees and flowers in Holland, but now only 860 remain. The others have been destroyed by modern man and his technology. We are changing the earth, the air and the water, and everything that grows and lives. We can’t live without these things. If we continue like this, we shall destroy ourselves.

What will happen in the future? Perhaps it is more important to ask “What must we do now?” The people who will be living in the world of tomorrow are the young of today. A lot of them know that conservation is necessary. Many are hoping to save our world. They plant trees, build bridges across rivers in forests and so on. In a small town in the United States a large group of girls cleaned the banks of eleven kilometres of their river. Young people may hear about conservation through a record called “No, One’s Going to Change our World.” It was made by Scatles, Cliff Richard and other singers. The money from it will help to conserve wild animals.

60. There are few plants, trees and flowers in Holland now because ______.

A. there has been a lot of conservation in Holland

B. Holland does not need so many plants, trees and flowers

C. many plants, trees and flowers don't grow there any more

D. some plants, trees and flowers are dangerous

61. We shall destroy ourselves if we don't _______.

A. improve our technology in planting trees

B. hear about the record called “No, One’s Going to Change our World”

C. try our best to save the world

D. change the earth

62. “No, One’s Going to Change our World.” was _______.

A. an important book published in 1970

B. a record calling on people to conserve nature

C. an idea that nobody would accept

D. a rule worked out by the United States

63. What is the most important thing for us to do to save our world? ___________

A. We should clean the banks of our rivers.

B. We should know what will happen in the future.

C. We should know what we should do and do it now.

D. We should plant more trees and flowers.

64. What’s the main idea of the passage? _________

A. 1970 was “World Conservation Year”.

B. The United Nations wanted everybody to know that the world is in danger.

C. Conservation is necessary.

D. It is the young people who are helping to save our world .

查看答案和解析>>

科目: 來源: 題型:閱讀理解

It was the summer of 1965. DeLuca, then 17, visited Peter Buck, a family friend. Buck asked DeLuca about his plans for the future. “I’m going to college,but I need a way to pay for it” DeLuca recalls saying. “Buck said ‘You should open a sandwich shop.’”

That afternoon, they agreed to be partners. And they set a goal: to open 32 stores in ten years. After doing some research, Buck wrote a check for $1,000. DeLuca rented a storefront (店面) in Connecticut, and when they couldn't cover their start­up costs,Buck kicked in another $1,000.

But business didn't go smoothly as they expected. DeLuca says, “After six months,we were doing poorly, but we didn't know how badly, because we didn't have any financial controls.” All he and Buck knew was that their sales were lower than their costs.

DeLuca was managing the store and going to the University of Bridgeport at the same time. Buck was working at his day job as a nuclear physicist in New York. They'd meet Monday evenings and brainstorm ideas for keeping the business running. “We convinced ourselves to open a second store. We figured we could tell the public. ‘We are so  successful,we are opening a second store.’” And they did—in the spring of 1966. Still, it was a lot of learning by trial and error.

But the partners' learn­as­you­go approach turned out to be their greatest strength. Every Friday, DeLuca would drive around and hand-deliver the checks to pay their suppliers. “It probably took me two and a half hours and it wasn't necessary, but as a result, the suppliers got to know me very well, and the personal relationships established really helped out.” DeLuca says.

And having a goal was also important. “There are so many problems that can get you down. You just have to keep working toward your goal.” DeLuca adds.

DeLuca ended up founding Subway Sandwich, the multimillion­dollar restaurant chain.

56. DeLuca opened the first sandwich shop in order to   .

A. support his family

B. pay for his college education

C. help his partner expand business

D. do some research

57. Which of the following is TRUE of Buck?______

A. He put money into the sandwich business.

B. He was a professor of business administration.

C. He was studying at the University of Bridgeport.

D. He rented a storefront for DeLuca.

58. What can we learn about their first shop?_______

A. It stood at an unfavorable place.

B. It lowered the prices to promote sales.

C. It made no profits due to poor management.

D. It lacked control over the quality of sandwiches.

59. What contributes most to their success according to the author?_______

A. Learning by trial and error.

B. Making friends with suppliers.

C. Finding a good partner.

D. Opening chain stores.

查看答案和解析>>

科目: 來源: 題型:閱讀理解

My first memories of acts of kindness are from when I was about 12 years old. I always   36  people as soon as possible with whatever they needed.

At that time, I noticed that many  37   people had difficulty going to the grocery store ___38    a snowstorm. I would spend part of a  39    Saturday knocking on my elderly neighbor’s apartment doors to ask if they  40   anything from the store. The  41   was down a hill and I would bring back a couple of bags of goods for them. I liked it and it made them so   42   , too.

My friends asked me   43   I was doing and after some time some of them   __44_   in and it became a  _45    as time went by. I  46   asked for money for what I did, but sometimes the old ladies would  47    the change in my pocket secretly. The next time I would buy some flowers or cards for them.

When I went to college, many of these people would  48   my mother about me,  ___49   my mother didn’t always know who they were. It was through those  50__   between my mother and these people that she  51   what I used to do for them — I had never told her.

I  52   helping others when I was 12 and it  53   until today. Now, I’m a teacher and teaching my students the art of true   54   . At first I wrote this for my diary, but my mother said why not  55   it with everyone. I hope this inspires younger people and the old alike.

36. A. helped                      B. gave                         C. cared                       D. offered

37. A. lazy                         B. tired                         C. kind                         D. old

38. A. after                        B. before                      C. until                         D. since

39. A. fine                         B. snowy                      C. funny                       D. busy

40. A. got                          B. fetched                     C. needed                     D. took

41. A. store                        B. factory                     C. hospital                    D. college

42. A. sad                          B. happy                       C. strange                     D. young

43. A. whether                   B. when                       C. why                         D. what

44. A. turned                      B. looked                      C. gave                        D. joined

45. A. order                       B. habit                        C. tradition                   D. custom

46. A. never                       B. usually                     C. always                     D. sometimes

47. A. put                          B. choose                     C. save                         D. keep

48. A. think                        B. ask                          C. guess                       D. find

40. A. but                          B. and                          C. so                           D. or

50. A. conversations           B. discussion                C. statements                D. speeches

51. A. knew from               B. thought over             C. learned about            D. talked about

52. A. finished                    B. started                      C. stopped                    D. lasted

53. A. pauses                     B. remains                    C. continues                 D. follows

54. A. love                         B. kindness                   C. friendship                 D. honesty

55. A. show                     B. divide                       C. deliver                      D. share

查看答案和解析>>

科目: 來源: 題型:

 Greatly moved by her words, ______ .

A. tears came to his eyes                B. he could hardly hold back his tears

C. tears could hardly be held back      D. his eyes were filled with tears.

查看答案和解析>>

科目: 來源: 題型:

 Sometimes she was dying ______ her husband about it.

A. tell                           B. telling         C. to tell                       D. of telling

查看答案和解析>>

科目: 來源: 題型:

The children helped to carry their mother’s _______ home from the shops.

A.distribution     B.matters            C.donation                D.purchases

查看答案和解析>>

科目: 來源: 題型:

—I'm sorry, I shouldn't have been so rude to you.

—You ________ your temper, but that's OK.

A.have lost               B.had lost            C.did lose          D.were losing

查看答案和解析>>

科目: 來源: 題型:

I had no money, otherwise ______________ it .

A. I would buy                                        B. I would have bought

C. I had bought                                     D. I bought

查看答案和解析>>

同步練習(xí)冊答案