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词汇学习6： 1. The old concerns lose importance and some of them vanish altogether. A）develop B）disappear C）linger D）renew 2. In the United States educational system, intermediate school is the transitional phase between the primary grades and high school. A）stage B）notion C）pattern D）alternative 3. Fluoride deters1 tooth decay by reducing the growth of bacteria that destroy tooth enamel2. A）facilitates B）overwhelms C）inhibits D）loosens 4. The firm of Bonnin and Morris in Philadelphia was probably the first American company to manufacture porcelain3. A）silverware B）crystal C）china D）linen 5. Gunpowder4 was used extensively in firearms prior to 1990. A）in B）around C）from D）before 6. We packed up the things I had accumulated over the last three years and left for good. A）close B）near C）past D）final 7. The chemical is lethal5 to rats but safe to cattle. A）toxic B）harmful C）deadly D）contagious 8. She is very conscientious6 about her work. A）worried B）careful C）anxious D）nervous 9. She has consolidated7 her power. A）strengthened B）won C）hardened D）united 10. The drinking water is contaminated with impurities8. A）blackened B）polluted C）darkened D）mixed 11. Her novel depicts9 a futuristic America. A）writes B）sketches C）describes D）indicates 12. He expressed concern that the ship might be in distress10. A）despair B）difficulties C）need D）danger 13. They are endeavoring to change society as a whole. A）trying B）working C）doing D）making 14. Your eternal boasting annoys everyone. A）unchangeable B）everlasting C）boring D）monotonous 15. The other women seemed contented11 and they even exhibited their bellies12 with pride. A）demonstrated B）uncovered C）spread D）showed 词汇学习7： 1. Loud noises can be annoying. A）hateful B）painful C）horrifying D）irritating 2. Human facial expressions differ from those of animals in the degree to which they can be deliberately13 controlled and modified. A）sufficiently B）noticeably C）intentionally D）absolutely 3. The Constitution's vague nature has given it the flexibility14 to be adapted when circumstances change. A）imprecise B）concise C）unpolished D）elementary 4. The expedition reached the summit at 10:30 that morning. A）top of the mountain B）bottom of the mountain C）starting point D）site 5. The latest census15 is encouraging. A）count B）statement C）agreement D）estimate 6. Academic records from other institutions often become part of a university's official file and can neither be returned to a student nor duplicated. A）borrowed B）purchased C）copied D）rewritten 7. While serving in the Senate in the early 1970's, Barbara Jordan supported legislation to ban discrimination and to deal with environmental problems. A）list B）forbid C）handle D）investigate 8. Gambling16 is lawful17 in Nevada. A）legal B）irresistible C）enjoyable D）profitable 9. The always mock me because I am ugly. A）smile at B）look down on C）belittle D）laugh at 10. These are our motives18 for doing it. A）reasons B）arguments C）targets D）stimuli 11. It was a question of making sure that certain needs were addressed, notably19 in the pensions area. A）noticeably B）remarkably C）particularly D）significantly 12. His new girlfriend had omitted to tell him that she was married. A）forgotten B）failed C）deleted D）left out 13. Many of their ideas are being incorporated into orthodox medical treatment. A）acceptable B）conservative C）western D）conventional 14. Charges for local telephone calls are outrageous20. A）unheard of B）unacceptable C）unbelievable D）ridiculous 15. Guests were scared when the bomb exploded. A）frightened B）killed C）endangered D）rescued 点击  收听单词发音
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