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  2014考研英語復(fù)習(xí):模擬試題之完型專項(xiàng)練習(xí)(五十三)

  SectionⅠ Use of English

  Directions:

  Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. ( 10 points )

  Among the devastating consequences of AIDS has 1 its epidemic spread in the developing world. The disease has caused 2 suffering, debilitation, loss of life and disruption of family, social and economic 3. Because of the considerable expense and logistical difficulty in providing antiviral drugs to populations 4 with the human immunodeficiency virus 5 the world, the biomedical community is looking towards vaccines to help solve this compelling problem.

  The search for an AIDS vaccine began more than 15 years ago with great 6 and high expectations. With the 7 of the human immunodeficiency virus (HIV) as the cause of AIDS, it seemed that a 8 would follow closely behind. But despite a large concerted effort, the problem has proven more difficult than 9, and progress has not 10 the 11 hopes. Here I review the 12scientific obstacles confronting the development of an effective HIV vaccine, and I consider 13 strategies to overcome these obstacles.

  It is instructive to consider the circumstances that have 14 to past successes in vaccine development. The smallpox vaccine is 15 the most successful inventions in the history of 16. Why, 200 years ago, without the benefit of modern biotechnology, did the smallpox vaccine succeed so readily while an AIDS vaccine 17 elusive? The answer lies in an experiment of nature that provided, to an astute observer, a clear direction for smallpox vaccine development. In this classic story of 18 discovery, Edward Jennet noticed that milk maids who had previously contracted cowpox were 19 to smallpox infection. This observation was the critical event leading to the finding that the cowpox virus cross-reacted immunologically with the smallpox virus and could 20 be used to protect against smallpox.

  1. A. on   B. with   C. been   D. about

  2. A. unpredicted   B. uncontrollable   C. unimaginable   D. unprecedented

  3. A. stability   B. instability   C. permanency   D. soundness

  4. A. harmed   B. infected   C. infectious   D. infectable

  5. A. everywhere   B. throughout   C. devastating   D. occupying

  6. A. difficulty   B. concern   C. optimism   D. pessimism

  7. A. confirmation   B. identification   C. information   D. precaution

  8. A. cure   B. capsule   C. medication   D. vaccine

  9. A. ever   B. anticipated   C. possible   D. necessary

  10. A. surpassed   B. out-balanced   C. matched   D. rivaled

  11. A. origin   B. initial   C. great   D. modest

  12. A. majority   B. primary   C. principal   D. premier

  13. A. potential   B. initiative   C. practical   D. existing

  14. A. lead   B. caused   C. contributed   D. cooperated

  15. A. by far   B. till now   C. among   D. considered

  16. A. vaccine   B. medicine   C. smallpox   D. AIDS

  17. A. slowly   B. fails   C. remains   D. counts

  18. A. accidental   B. importanc   C. scientific   D. vaccine

  19. A. vulnerable   B. resistant   C. opposing   D. defendant

  20. A. safely   B. therefore   C. as well   D. possibly

  2022考研初復(fù)試已經(jīng)接近尾聲,考研學(xué)子全面進(jìn)入2023屆備考,跨考為23考研的考生準(zhǔn)備了10大課包全程準(zhǔn)備、全年復(fù)習(xí)備考計(jì)劃、目標(biāo)院校專業(yè)輔導(dǎo)、全真復(fù)試模擬練習(xí)和全程針對(duì)性指導(dǎo);2023考研的小伙伴針也已經(jīng)開始擇校和復(fù)習(xí)了,跨考考研暢學(xué)5.0版本全新升級(jí),無論你在校在家都可以更自如的完成你的考研復(fù)習(xí),暑假集訓(xùn)營(yíng)帶來了院校專業(yè)初步選擇,明確方向;考研備考全年規(guī)劃,核心知識(shí)點(diǎn)入門;個(gè)性化制定備考方案,助你贏在起跑線,早出發(fā)一點(diǎn)離成功就更近一點(diǎn)!

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