Practice One1._still an undergraduate, Newton discovered the Binomial Theorem in algebra.A. While B. Being C. He was D. Although2. Of course there_ a time when most of the free land in America had been taken up.A. had come B. did came C. have come D. did come3. Why are you playing here _ you should do your homework?A. while B. when C. once D. as1. 答案 A.句意：还在上大学时，牛顿就发现了代数学中的二项式定理。while 意为“当时候” 。在从属连词 while 引导的状语从句中，如果谓语动词包含有 be，而且主从句主语一致，就常常省略从句中的主语和 be。另外，when, as 等引导时间、地点、原因等状语从句时，也有此用法。例如：When eating his breakfast, he heard the door bell ring.当他正用早餐时，听到了门铃响。本体完整的从句为：While he was still an undergraduate.2. 答案 D。句意：在美国确实有过那样一个时期，大量的自由土地被占用。肯定性助动词与动词原形搭配使用，表强调。本句是含there 的倒装句，主语是 a time, 谓语是 did come。例如：There did stand a man.那儿确实站着一个人。3. 答案 B。句意：你应该做你的家庭作业，为什么还在这儿玩？when 和 while 都有“当时候”之意。这里需用 when 表示“既然，鉴于”之意，如：Why are you here when you should be at school?既然你应到校上课，为什么在这里？while 常用来表对比，相当于 whereas,例如：Jane was dressed in brown while Mary was dressed in blue.简穿褐色衣服，而玛丽却穿蓝色衣服。4. I shall be _ pleased _ go skating with you.A. notat all B. the most to C. only too toD. high to5. He has been learning English for over two years, _ he has made little progress.A. and yet B. so that C. but then D. but that6. To be frank, Id rather you _ in the case.A. were not involved B. not involved C. not to be involved D. will not be involved 4. 答案 C。句意：和你一起去滑冰，我真是太高兴了。Only too=very,意为“非常” ；too to do 有否定意义，但 only too to do 却没有否定意义。5. 答案 A。句意：他学英语已两年多了，可进步很小。and yet 意为“但是” ，例如：He worked hard, and yet he failed.他工作努力，可是他失败了。But then 意为“可另一方面” ；but that 意为“若不是” ；so that 意为“以致，为的是” 。6. 答案 A。句意：坦白地说，我宁愿你不要卷入此事。Id rather (that) + 是表达愿望的虚拟语气，后接的 that 句中，谓语动词用过去时或过去完成时。be involved 意为“被涉及，卷入” 。7. As _ announced in todays papers, the Shanghai Export Commodities Fair is also open on Sunday.A. being B. is C. to be D. been8. Ocean minerals renew themselves, _ land minerals, which are gone forever when they are taken out of the earth.A. while B. unlike C. however D. like9. Listening, speaking, reading and writing _ the fundamental order in language learning.A. constitute B. consist C. constitute of D. consist of7. 答案 B。句意：正如今日报纸所载，上海出口商品交易会也于星期天开放。As 引导非限制性定语从句，通常代替后面整个句子内容。常出现的形式有：As is known to all, “众所周知，” ； fair 意为“集市，交易会” ，如 a world fair 世界博览会。8. 答案 B。句意：陆地上的矿产一旦开采永不存在。海洋里的矿产则不同，是可以恢复的。Unlike 是介词，意为“不像，和不同” ；While 和 however 也有转折的意味，但属连词，后不能直接接名称。9. 答案 A。句意：听 说 读 写构成语言学习的基本顺序。Constitute 为及物动词，意味“构成” ；consist 是不及物动词，与 of 连用，consist of 意为“由构成” 。10. Very likely you will _ highly of what I have done.A. disagree B. disapprove C. discontent D. dissatisfy11. Purchasing power in the countryside has been continually _.A. rising B. arising C. raising D. promoting12. The horse was in a terrible _ when they found it.A. treatment B. occasion C. chance D. condition10.答案 B。句意：正如今日报纸所载，上海出口商品交易会也于星期天开放。As 引导非限制性定语从句，通常代替后面整个句子内容。常出现的形式有：As is known to all, “众所周知，” ； fair 意为“集市，交易会” ，如 a world fair 世界博览会。11.答案 B。句意：陆地上的矿产一旦开采永不存在。海洋里的矿产则不同，是可以恢复的。Unlike 是介词，意为“不像，和不同” ；While 和 however 也有转折的意味，但属连词，后不能直接接名称。12.答案 A。句意：听 说 读 写构成语言学习的基本顺序。Constitute 为及物动词，意味“构成” ；consist 是不及物动词，与 of 连用，consist of 意为“由构成” 。13. It is already known that vast _ of minerals exist in the ocean.A. deals B. number C. amounts D. quantity14. If the guest _ the host on the food, it is common for the host to say “Thank you, Im glad you like it” in reply.A. flatters B. compliments C. boasts D. thanks15. Fortunately a very large number of these paintings have been _, nearly all the best being owned by the Queen of England.A. served B. preserved C. reversed D. reserved13.答案 B。句意：很有可能你很不赞成我所做的事情。Disapprove of 意为“不赞成，不同意” ，后可接名词，动名词或从句。Disagree 意为“不同意” ，常与 with 连用；be dissatisfied with 意为“不满意” ；be discontented with 意为“不满意，不满足” 。11.答案 A。句意：农村地区的购买力在不断提高。Rise 是不及物动词，意为“上升，增长” ；arise 意为“出现，发生” ；raise 意为“提高，举起” ；promote 意为“促进，提升” ；raise 和promote 与 rise 意义相近，但前两个词都是及物动词，不能用于此句。12.答案 D。句意：他们找到那匹马时，它的状况很糟。Condition 意为“状况，健康状况” ；如：in good (bad) condition 健康状况好（差） 。Occasion 意为“场合， （重大的）时刻” 。16. Leonard da Vinci was an all-round genius, whose interests _ over every subject.A. varied B. ranged C. valued D. ranked17. In fact he had _ the mines quite early before he was twenty.A. quit B. stayed C. stopped D. blocked 18. We required canned _ for the journey.A. provide B. store C. provision D. supply19. The books he read in school made him _ for more of what was inside other books.A. curious B. hungry C. queer D. strange 20. The Chinese people speak _ dialects.A. varying B. difficult C. diverse D. strange21. Save the _ for the dog.A. set-back B. leftovers C. upkeep D. leftover 22. You can go swimming _