.

II  语言知识及应用(共两节,满分35分)

第一节 完型填空(共10小题;每小题2分,满分20分)

阅读下面短文,掌握其大意,然后从21~30各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。 

Okay, you are in the classroom, you’ve got the proper attitude, your instructor seems eager and energetic and you’re ready to learn. Your instructor starts    21    . You listen to the first few words and then begin to take notes. Copious notes. At the end of 45 minutes you have literally rewritten the    22   . Your hand is sweaty from the constant writing and you’ve filled up seven pages of your notebook. But one thing is    23   . You forgot to listen to the lecture.

This is a    24    problem in all classes. You are so afraid that you might miss something “important” that your tendency is to write    25    down. We all do because we have all committed this    26    at one time or another. I realize it’s easy for me to say this, but it is much better to listen to the lecture carefully and    27   only those things that were genuinely important.

It goes without saying that your notes should be written readably. I wouldn’t suggest rewriting your   28    after every class but sometimes this will help you understand and recollect the material better. Organize your notes into brief    29   . Use arrows, stars, asterisks and other notational devices to highlight things that seem really important. As a rule, if there is anything you don’t understand, bring it up during the next class period. If not, you will be doing yourself, and everyone    30     in the class, a great injustice.

21. A. speaking                    B. saying                      C. talking                            D. discussing

22. A. speech                       B. lecture                            C. lesson                      D. class

23. A. missing                      B. going                       C. losing                      D. leaving

24. A. average                      B. ordinary                   C. common                   D. usual

25. A. anything                    B. something                C. nothing                    D. everything

26. A. behavior                    B. action                      C. fault                        D. error

27. A. record                       B. notice                      C. memorize                 D. keep

28. A. comments                  B. notes                        C. diaries                      D. works

29. A. styles                         B. sections                    C. species                     D. designs

30. A. rest                           B. remaining                 C. other                        D. else

Since the gene, called DAF-16 in worms, was found in many animals and in humans, the finding could open up new ways to affect aging, immunity(免疫)and resistance in humans, the scientists said.

“We wanted to find out how normal aging is being governed by genes and what effect these genes have on other traits, such as immunity,” said Robin May of the University of Birmingham, who led the study.

Populations across the world are aging at a surprising pace, bringing potentially big challenges for health and social care systems. A study by Danish scientists last year found that half of babies born in the rich world today will live to celebrate their 100th birthdays. Scientists are eager to find out how people age to try to develop drugs to help them stay healthier as their lives extend.

“What we have found is that things like resistance and aging tend to go hand in hand,” May said in an interview.

May’s team compared longevity, stress resistance and immunity in four related species of worm. They also looked for differences in the activity of DAF-16 in each of the four species, and found that they were all quite distinct.

May said DAF-16 was active in most cells in the body and was very similar to a group of human genes called FOXO genes, which scientists believe play a role in the aging process.

“The fact that subtle(微妙的)differences in DAF-16 between species seem to have such an impact on aging and health is very interesting and may explain how differences in lifespan and related traits have arisen during evolution,” May said.

64. In which section may the text appear in a newspaper?

  A. Education.              B. Science.          C. Entertainment.         D. Culture.

65. What can we know from the third paragraph?

A. New ways have been found to affect aging. B. Babies in the rich world will all live longer.

C. Present social care systems are poorly managed.

D. Aging populations are causing more challenges.

66. From the text we know that DAF-16._________

A. is a gene that is only found in worms    B. can make people live longer

C. has an effect on aging and immunity      D. has been quite familiar to scientists

67. What can be the best title of the passage?

A. Scientists Find Gene Linked to Aging  B. Population Aging Faster than Expected

C. How to Make People Live Longer     D. Gene Determines How Long We Live

 0  22524  22532  22538  22542  22548  22550  22554  22560  22562  22568  22574  22578  22580  22584  22590  22592  22598  22602  22604  22608  22610  22614  22616  22618  22619  22620  22622  22623  22624  22626  22628  22632  22634  22638  22640  22644  22650  22652  22658  22662  22664  22668  22674  22680  22682  22688  22692  22694  22700  22704  22710  22718  151629 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网