大学英语四级考前恶补--be+不定式结构.doc

be+不定式结构Test Fivebe+不定式结构表示按计划、安排即将发生的动作。例如：Theres to be an investigation.I am to have tea with Betty this afternoon.这一结构常见于报纸和广播，用以宣布官方的计划或决定。例如：The Queen is to visit Japan next year.二是表示命令、禁止或可能性等。例如：You are to stand here. Do you understand?Tell her shes not to be back late.一般现在时也可表达将来时间，常见于条件状语和时间状语从句。例如：If she comes, Ill tell her all about it.Wait here till the meeting is over.It wont be long before the rain stops.近义词辨析begin, commence, initiate, launch, start 这组词均含有“开始”的意思。在这组词中最常用，泛指开始做某事。但口语中近年来start用得较多。 The band began to play joyful music.乐队开始演奏欢快的音乐。commence比begin用法正式。在宗教或其它仪式及军事用语中人们倾向用commence. The officer ordered the soldiers to commence the attack.军官命令士兵开始进攻。initiate指进程中的第一步，与何时停止或结束没有关系。The government has initiated a new reform program.政府启动了新的改革方案。launch指开始或着手一项活动、计划等大规模或声势浩大的行动，行动前或行动中有一定的宣传鼓动。 The company will launch an advertising compaign to introduce its new product.那个公司要发起广告攻势推出自己的新产品。Start与stop构成反义用法，指从一特定地点出发，由静止或等待状态开始做某事。在口语中常可代替begin。 They started operations at once.他们马上开始行动。全真模拟试题1. _ in the past, at the moment it is a favoritechoice for wedding gown.A. Unpopular has as white been B. White has been as unpopularC. Unpopular has been as white D. Unpopular as white has been2. _ for a long time, the fields are all dried up.A. There has been no rain B. Having no rain C. There having been no rainD. There being no rain3. The millions of calculations involved, _ by hand, would have lost all practical value by the time they were finished.A. had they been done B. they had been done C. having been done D. they were done4. Televisions enable us to see things happen almost at the exact moment _.A. which they are happening B. they are happening C. which they happen D. they have happened5. _ me most was that the young boy who had lost both arms in an accident could handle a pen with his feet.A. That amazed B. It amazedC. Which amazed D. What amazed6. Although she wrote a lot of short stories and poems when she was very young, _ she was twentyfive.A. her first real success did not come until B. her real first success came until notC. since her first real success did not come untilD. not until her first real success7. You should know better than _ your little sister at home by herself.A. to leave B. leaving C. to have left D. left8. As the train will not leave until one hour later, we _grab a bite at the snack bar.A. may well B. just as well C. might as well D. as well9. She resorted to _ when she had no money to buyfoods for her children.A. have stolen B. steal C. stole D. stealing10. The boy has admitted to _ the window while playing football yesterday.A. breaking B. having been broken C. break D. be breaking11. Betty advised me to label our luggage carefully in case it gets _in transit.A. misused B. mishandled C. mistaken D. mislaid12. _ money, she is quite rich. However, this does not mean that she is happy.A. Concerning B. As to C. In terms of D. In the light of13. A wellwritten composition _ good choice of words and clear organization among other things.A. calls for B. calls on C. calls up D. calls off14. It is _ with the customer not to let the shopassistants guess what she really likes and wants until the last moment.A. in her honor B. on her honor C. a point of honor D. an honor15. This house will probably come on the _ next month.A. fair B. market C. shop D. store16. George was introduced to _ activities at a young age, when she was hire to act as a lookout for drugdealers.A. illegal B. lawful C. faithful D. peaceful17. An institution that properly carries the name university is a more comprehensive and complex institution than any other kind of higher education_.A. settlement B. establishment C. costruction D. structure18. Peoples status in society is frequently _ byhow much they own.A. measured B. examined C. tested D. questioned19. Jack is so _ to his appearance that he never has his clothes pressed.A. adverse B. anonymous C. indifferent D. casual20. There is an increasing _ to make movies describing violence.A. strength B. direction C. tradition D. trend21. Outside my office window there is a fire _ onthe right.A. escape B. ladder C. steps D. stairs22. I _ with the Browns during my stay in New York City.A. put in B. put down C. put on D. put up23. Operations which left patients _ and in need of long periods of discovery time now leave them feeling relaxed and comfortable.A. exhausted B. unhealthy C. upset D. fearful24. Farmers are allowed to grow small gardens of their own and they sell their vegetables _ the black market.A. on B. at C. in D. for25. The electric fan does not work because of the _of service.A. pause B. break C. interruption D. breakdown试题答案与解析1. D) 【句意】 虽然白色过去不受欢迎，但目前它是婚纱的首选颜色。【难点】 as是连词，引导让步状语从句时，往往使用半倒装形式。又如：Beautiful as she is, she is foolish.2. C) 【句意】 由于长时间无雨，田野变得十分干燥。【难点】 该句的前半部分是There be结构，完成式独立结构形式，这与时间状语for a long time相吻合。3. A) 【句意】 数百万次计算如果用手工操作，那么，到计算结束的时候，就将失去其全部实际意义。【难点】 这是一句虚拟语气的句子，条件句使用了省略if的倒装句形式，动作与过去事实相反。4. B) 【句意】 电视使我们能够在事情发生的那一瞬间就看到它们是如何发生的。【难点】 moment后接的是省略关系副词when的定语从句。B)符合题意要求。5. D) 【句意】 最令我惊讶的是，这个在车祸中失去双臂的小男孩能够用脚使用钢笔。【难点】 这是一个what从句作主语的典型句子。6. A) 【句意】 虽然她很小的时候就写了很多短篇小说和诗歌，但她直到25岁才迎来第一次真正的成功。【难点】 这是一个练习not until结构的句子。7. A) 【句意】 你应该知道，不该把你小妹妹一个人留在家里。【难点】 to know better than to do sth.是一个常见的表示责备的句型，意为“应该知道不该做某事”。8. C) 【句意】 既然火车一个小时以后才开，我们不妨到快餐店吃口东西。【难点】 might as well后接动词原形，意为“不妨，何不”。9. D) 【句意】 当她没钱为孩子买吃的东西时，她开始偷。【难点】 resort to意为:求助于，其中to是介词，后接动名词。9. A)【句意】 那个男孩承认在昨天踢足球的时候打破了窗子。【难点】 admit to中的to是介词，后接名词或动名词。10. D) 【句意】 贝蒂建议我把我们的行李认真地贴上标签以免运输中放错位置。【难点】 mislay意为“把放错地方”；misuse意为“错用滥用”；mishandle意为“瞎弄，胡乱操作”；mistake意为“误选”。11. C) 【句意】 就钱而言，她很富裕。然而这并不意味着她幸福。【难点】 in terms of意为“从方面来说”；concerning意为“关于”；as to也是“关于；至于”；in the light of 意为“鉴于，由于”。12. A) 【句意】 一篇好文章，除其它因素外，还要求选词优美，组织清晰。【难点】 call for意为“要求，需要”；call on意为“号召，请求”;call up意为“使人想起” ；call off意为“取消，停止做”。13. C) 【句意】 对于顾客来说，直到最后时刻才让售货员猜出她真正喜欢什么，真正想买什么，这是一个涉及面子的问题。【难点】 a point of honor意为“涉及名誉的事情”；in ones honor意为“为某人的荣誉”； on ones honor意为“以名誉担保”；an honor意为“光荣的人或事”。14. B) 【句意】 这座房子可能下月上市。【难点】 on the market意为“上市，出售”； fair意为“集市；庙会；交易会”;shop是“商店”；store是“储存；仓库”。15. A) 【句意】 很小的时候，乔治被介绍参与了非法活动，他受雇为毒贩子放哨。【难点】 illegal 意为“不合法的，非法的”；lawful 意为“依法的，守定的”；faithful意为“忠实的，守信的”；peaceful 意为“平静的；安宁的”。16. B) 【句意】 能称得上大学称号的机构是一个比其他种类高等教育机构都更复杂更综合的机构。【难点】 establishment 意为“企业，设施（公司，学校，医院，教会等）”；settlement意为“定居点；殖民地”；construction意为“建造；建筑物”；structure是“结构，构造”。17. A) 【句意】 人的社会地位常常由他们拥有的财富的多少来衡量。【难点】 measure 意为“估量，衡量”；examine 意为“检查；仔细观察”；test意为“试验，测试”；question意为“询问，审问”。18. C) 【句意】 杰克从不注意自己的外表，衣服从