全國碩士研究生入學考試英語命題預測試卷(九)

1、全國碩士研究生入學考試英語命題預測試卷 （ 九）Sect ionI Use of En glishDirections: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 )Amongthe devastating consequences of AIDS has 1 its epidemic spread in the developing world. The disease has caused 2

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

3、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 p

4、roblem has proven more difficult than 9, and progress has not 10 the 11 hopes. Here I review the 12 scientific 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 p

5、ast 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 nat

6、ure 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

7、that the cowpox virus crossreacted immuno logically with the smallpox virus andcould 20 be used to protect aga inst smallpox.1. A. on B. with C. been D. about2. A. un predicted B. uncon trollable C. uni magi nable D. un precede nted3. A. stability B. in stability C. perma nency D. soundn ess4. A. ha

8、rmed B. i nfected C. i nfectious D. i nfectable5. A. everywhere B. throughout C. devastat ing D. occupy ing6. A. difficulty B. concern C. optimism D. pessimism7. A. con firmati on B. ide ntificati on C. in formati on D. precauti on8. A. cure B. capsule C. medicati on D. vacci ne9. A. ever B. an tici

9、pated C. possible D. n ecessary10. A. surpassed B. outbala need C. matched D. rivaled11. A. origin B. i nitial C. great D. modest12. A. majority B. primary C. prin cipal D. premier13. A. pote ntial B. in itiative C. practical D. existi ng14. A. lead B. caused C. con tributed D. cooperated15. A. by f

10、ar B. till now C. among D. con sidered16. A. vacci ne B. medici ne C. smallpox D. AIDS17. A. slowly B. fails C. remains D. counts18. A. accidental B. importance C. scientific D. vaccine19. A. vulnerable B. resistant C. opposing D. defendant20. A. safely B. therefore C. as well D. possiblyWord是學生和職場人士最常用的一款辦公軟件之一，99.99% 的人知道它，但其實，這個軟件背后，還有一大批隱藏技能你不知道。掌握他們，你將開啟新世界的大門。Tab+Enter,在編過號以后，會自動編號段落Ctrl + D 調出字體欄，配合 Tab+Enter 全鍵盤操作吧Ctrl + L 左對齊， Ctrl + R 右對齊， Ctrl + E 居中Ctrl + F 查找，Ctrl + H 替換。然后關于替換，里面又大有學問！有時候Word文檔中有許多多余的空行需要刪除，這個時候我們可以完全可以用查找替換”來輕松解決。打開 編輯”菜單中的 替換”對話框，把光標定位在 查找內容”輸入框中，單擊 高級”按