1. The company had to ______ a number of workers because of the drop in sales.
　　A. see off B. take off C. cut off D. lay off

　　2. Some experts warn that global warming will _______ more than one million sorts of plants.
　　A. turn down B. bring in C. wipe out D. take away

　　3. Let’s hope the fine weather ________ for Sunday’s camping trip.
　　A. clears up B. picks up C. keeps up D. puts up

　　4. It’s perfectly normal to be a bit nervous at first, but you’ll ____ it once you start your presentation.
　　A. get off B. get across C. get over D. get through

　　5. That the United States attempted to force RMB to be revalued was out of political ________ other reasons.
　　A. better than B. less than C. more than D. rather than

　　6. Nowadays more and more people are advised to arrange for insurance ________ that they or their family members need medical treatment.
　　A. in order B. in need C. in case D. in hope

　　7. — We spent three hours waiting in the rain _____ your coming late again. — I am sorry.
　　A. rather than B. instead of C. because of D. less than

　　8. — Where is John? — Don’t disturb him. He is reading a book in his study _____.
　　A. right away B. right now C. on time D. no longer

　　9. As we know, Alexander Fleming discovered penicillin purely ________.
　　A. by mistake B. by chance C. in order D. in place

　　10. Having lived in the own for many years, Mr. Smith no longer felt _____ among the local people.
　　A. out of control B. out of touch C. out of place D. out of use

　　解析

　　1. D。根据语境, 因为销售额的下降，这家公司不得不裁员。A项“see sb. off”，为某人送行;B项“起飞，脱掉”;C项“隔绝”，指水、食物的供应;D项“解雇”。所以选择D项。

　　2. C。根据语境，有些专家警告全球变暖将使一百多万植物死去。A项“拒绝”;B项“带来”;C项“除去，消灭”;D项“拿走”。C项符合句意。

　　3. C。句意为“希望好天气会一直持续到星期天野营的时候”。clear up整理，放晴;pick up捡起，学会，收听;keep up持续，继续，保持不衰退;put up建造，搭起，举起。

　　4. C。刚开始时有点紧张是正常的，但是一旦开始，你就会恢复常态，不那么紧张了。get off“下车，停止讨论”;get across “把……讲清楚”;get over“克服，控制，恢复常态”;get through“接通电话，通过考试”。答案C符合题意。

　　5. D。better than比…更好;less than小于，决不;more than超过，不止，非常;rather than而不是。题意为“美国试图迫使人民币升值是出于政治目的而不是其他原因”，故选D。

　　6. C。in order按次序的，合乎程序的;in need在危难中,在危急中;in case假使，以防;in hope希望，在希望中。买保险“以防”家人需要医疗。

　　7. C。我们在雨中等三小时就是因为你迟到，because of“因为，由于”符合题意。rather than而不是;instead of (用…)代替…，(是…)而不是…，(用…)而不用…;less than小于，决不。

　　8. B。据答语“别打搅他，他此时正在书房读书”可知选right now“立即，此刻，目前”。right away立刻，马上;on time按时，准时;no longer不再，已不。

　　9. B。题意为“众所周知，亚历山大·弗莱明发现青霉素纯属意外”。by mistake错误地;by chance意外地，偶然地;in order按次序的，合乎程序的;in place在适当位置，合适。故选B。

　　10. C。根据题意可知，史密斯先生在小镇生活了许多年后才会感觉在当地人中不再格格不入。out of control失去控制;out of touch不联系，不接触;out of place不在应在的位置，不恰当，不协调，格格不入;out of use不再使用。C符合句意。