1、 （A） dim lights （B） strange music （C） darkness （D） scent7. The circulatory system helps dispose of wastes that would harm the body if they accumulated. （A） catch up with （B） bear up under （C） get rid of （D） run out of 8. The amount of time spent watching television in the average household in the Un
2、ited States has risen steadily since television sets were introduces in the 1950s. （A） discreetly （B） consistently （C） automatically （D） disproportionately9. In 1896 George Washington Carver became director of the Department of Agricultural Research at Tuskegee Normal and Industrial Institute, a pos
3、ition he retained for the rest of his life. （A） expanded （B） managed （C） cherished （D） kept10. Penicillin was discovered by chance in 1928. （A） finally （B） accidentally （C） experimentally （D） opportunely11. Lamp filaments are made from tungsten, a strong metal that can hold up under high temperature
4、s without melting. （A） reduce （B） withstand （C） illuminate （D） reflect12. The junior college has become a significant component in the expansion of educational opportunities in the United States since the Second World War. （A） force （B） element （C） concept （D） academy13. During their winter hibernat
5、ion period, bears doze. （A） sleep lightly （B） lose fur （C） go hungry （D） have babies14. Asbestos is a mineral fiber that can cause cancer if inhaled. （A） picked up （B） taken indoors （C） breathed in （D） eaten up15. Known as The First Lady of Song. Ella Fitzgerald got her start as a professional singe
6、r when she won a contest at the Apollo Theater in Harlem in 1934. （A） an award （B） an argument （C） a competition （D） a contract16. Chromium is a comparatively scarce element, occurring in nature only in compounds. （A） complex （B） strong （C） hard （D） rare17. Many photographers prefer to take pictures
7、 at twilight, when they can take advantage of the special effects of the setting sun. （A） at dusk （B） at noon （C） in the spring （D） in the fall18. The climate of the Middle Atlantic region of the United States varies with the altitude and land surface. （A） ocean waves （B） humidity （C） wind direction
8、 （D） elevation19. Since the Second World War, most urban growth in the United States has occurred on the outskirts of existing metropolitan areas. （A） in the counties （B） on the edges （C） on the streets （D） at the intersections20. A recent study concluded that unstable weather patterns may cause mig
9、raine headaches. （A） unforeseen （B） variable （C） violent （D） unusual21. Janet Guthrie was the first woman to compete in the Indianapolis 500, the most prestigious automobile race in the United States. （A） fastest （B） wealthiest （C） most honored （D） most dangerous22. Logrolling is a sport in which co
10、ntestants perform various maneuvers while treading on a floating log. （A） speeches （B） duties （C） marches （D） moves23. The reproductive potential of aphids is unmatched in the insect world. （A） unqualified （B） unrecognized （C） underestimated （D） unequaled24. The boom in silver production after 1860
11、spurred the use of innovative machinery in crafting silver flatware and vessels. （A） stimulated （B） allowed （C） required （D） accompanied25. Barbara Reed, a probation officer in Ohio, tried to climinate overly sweet foods from probationers diets in order to temper their antisocial behavior. （A） expla
12、in （B） moderate （C） do away with （D） learn about26. If roundworms are removed from the soil and placed in a liquid, they thrash helplessly around. （A） carelessly （B） tirelessly （C） powerlessly （D） heartlessly27. H.L.Menckens sardonic prose left an indelible mark on the English language. （A） an unriv
13、aled （B） an unmistakable （C） a pretentious （D） a permanent28. In studying social groups, sociologists often gain insight through the use of such devices as questionnaires. （A） access （B） credibility （C） publicity （D） understanding29. After his military defeat in 1865, Robert E. Lee entreated the peo
14、ple of the South to work for national harmony. （A） warned （B） urged （C） commanded （D） recruited30. The value of a topaz is largely determined by its quality. （A） especially （B） actually （C） mainly （D） alwaysVOCABULARY AND READING COMPREHENSION 1. In addition to being organs of hearing our ears assis
15、t us in maintaining our sense of balance. （A）Without （B）Instead of （C）Besides （D）In contrast to 2. British Columbias first gold rush was followed directly by the discovery of gold in eastern Canada. secretly importantly smoothly immediately3. The scientist and agricultural innovator George Washingto
16、n Carver aided the economy of the South by developing hundreds of commercial uses for crops such as the peanut. （A） restored stabilized helped changed4. Although best known for his political writing, reformer W. E. B.Du Bois also produced noteworthy fiction and poetry. musical unnoticed extensive si
17、gnificant5. The Mandan Indians lived beside the Missouri River where they cultivated fields of beans, corn, squash, sunflowers, and tobacco. surveyed farmed irrigated discovered6. Copper is commonly alloyed with zinc to make brass. mixed beaten layered heated7. Colorful parades were commonly organiz
18、ed on the frontier to display newly arrived merchandise. cavalry mops objects for sale immigrants to the West circus shows 8. Europeans established permanent colonies on the eastern shores of what is now the United States throughout the seventeenth century. during before up until just after9. The At
19、lantic trade winds and the belt of calms between them shift northward and southward with the seasons. intensify twist move rush10. Eudora Weltys stories deal with life in the rural South. （A） criticize elevate concern ridicule11. Boston owes some of its economic success to its outstanding public tra
20、nsportation network. （A） busy scenic remarkable gigantic12. In 1973 Ernest Vincent Wright wrote the 50,100-word novel Gadsby without once using the letter e simply ever at once at first13. Caused by an ascorbic acid deficiency, scurvy was a serious human a affliction until fairlyrecent times attribu
21、te notion situation problem14. Because light travels more quickly than sound, a rumble of thunder never precedes a bolt of lightning. follows （B） accompanies brings about comes before15. Inuits depend mainly on fishing and hunting for their sustenance. training luxuries recreation livelihood16. Long
22、 acclaimed as one of the worlds leading sopranos. Beverly Sills retired from her singing career to become artistic director of the New York City Opera. principal versatile imposing demanding17. Under proper conditions an iceboat can actually travel faster than the presuming breech.suitable unlikely
23、various windy18. Swallows nest in barns, sheds, chunneys and other secluded places. isolated high comfortable （D） rural 19. The harpsichord, developed during the Middle Ages, was one of the forerunners of the piano. competitors imitators predecessors offspring20. Geneticist Barbara McClintock discov
24、ered that genes, which prescribe the function of cells in plants and animals, can move in unpredictable ways. inhibit mimic alter dictate21. Artists of the school of New Realism deliberately avoid expressing what they feelor think about the subject of their paintings. subtly actually （C） consistentl
25、y intentionally22. Citizens of foreign countries who hold certificates of deposit in Canadian banks are responsible for paying the Canadian government a tax on their investment earnings. revenue （B） commission product banking 23. In the Nothern Hemisphere, summer days are considerably longer than winter days. above all （B
