25. It's nearly seven o'clock . Jack _____ be here at any moment . A. must B. need C. should D. can
答案是C项。根据语境空白处应填表示具有\随时可能\意义的情态动词。虽然can可以表示可能性，但它往往表示的是对这种可能性的怀疑。例如：Can he still be alive after all these years ? (这么多年之后，他还可能活在人世吗？) should除具有\应该\词义之外，还有一个含义是：will probably (将来很可能发生)又如：His uncle is working among the enemy officials now . Dangerous things should happen to him at any time . (他的叔叔现在在敌人的军营中工作，危险的事随时都可能发生在他身上。)
26. I _____ you somewhere before , but your name has escaped me _____ moment .
A. must see ; for a moment B. must have seen ; for a moment C. must see ; for the moment D. must have seen ; for the moment 答案是D项。must与不定式的完成体连用表示对过去发生的事持肯定态度的推断，在疑问句中用can，在持否定态度的推断时用can not 。例如：He must have rid himself of his preumonia last week , for you see , he doesn't cough at all now . (他在上星期肯定治愈了他的肺炎，你看，他现在一点都不咳嗽了。) for a moment表示一个动作延续了一会儿，而for the moment 则表示\目前；暂时\
27. We're leaving at six o'clock , and hope _____ most of the journey by lunch time .
A. to do B. to have done C. to make D. to have made 答案是B项。要答对这道题需要两方面的知识。一是不定式的完成体用来表示这个动作发生在谓语动作之前，或是表示该动作的完成。本题中的不定式的完成体表示的正是该动作的
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完成，因此这句话可改写为：We're leaving at six o'clock , and hope that we will have done most the journey by lunch time . (我们将在六点时动身，希望在午饭前走完大半路程。)第二，知识是与journey连用的不同的动词所具有的不同的内涵。词组to make a journey或to go on a journey 都表示\做一次旅行\，在这两个词组里a journey是一个整体，但是如果要表示旅程中的一部分，正确的英语则使用do这个动词，例如：do some / much / most of the journey (走完这个旅程的一部分/大部分/绝大部分) 28. She was afraid _____ the dog in case it became dangerous .
A. of exciting B. to excite C. that she excited D. to be exciting 答案是B项。be afraid后面既可以跟不定式be afraid to sth又可以跟动名词be afraid of doing sth , 但前者的意思是：害怕/不敢做某事；后者的意思为：对可能出现的结果的发愁或忧虑，试比较以下两个句子：
She was afraid to wake up her husband . ( perhaps because she feared that he would be annoyed or angry ) 她不敢唤醒她的丈夫。（可能因为她害怕他会不高兴或生气）
She was afraid of waking up her husband . ( perhaps because he was ill , or in need of extra sleep )她担心吵醒了她的丈夫。（可能因为他生病了或需要一些额外的睡眠） 29. The bad weather meant ______ the rocket launch (发射) for 48 hours .
A. delaying B. having delayed C. to delay D. to have delayed
答案是A项。mean后既可以跟不定式（mean to do sth），又可以跟名词mean doing
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sth，便两者内涵是有很大区别的，前者表示\故意去做；诚心去做\而后者表示\意味着要做\。据此两个不定式的选项应予以排除。虽然句中有表示延续一段时间的时间状语，但句意是：恶劣的天气意味着火箭的发射要耽搁四十八小时，\耽搁\这一动作没有也不能发生在谓语动词meant之前，所以C项也必须排除掉。
30. Do you consider it any good _____ the truck again ?
A. to repair B. repairing C. repaired D. being repairing 答案是B项。在这个句子中it是形式宾语，如果这样的句子中出现了any good , no good , any use 或 no use，就该使用动名词来作句中真正的宾语。
31. ______ to somebody , a British person after shakes hands with the stranger .
A. Introducing B. To introduce C. To be introduced D. On being introduced
答案是D项。很明显，句中的空白处应 选用非谓语动词的被动形式。如果将C项填入空白处，虽然这个不定式是被动形式，但不定式短语处于句首或是充当目的的状语，或是充当含有虚拟意义的动名词时，其意为：\一…就…\，但如介词on后带被动态的动名词，除上述意义外，还可表示：\在…的时候\。D项答案的这个意义正符合上面句子的句意。 32. _____ in thought , he almost ran into the car in front of him .
A. Losing B. Having lost C. Lost D. To
答案是C项。过去分词有三个用途：（1）表示被动，如：the oppressed people ( = the people who are oppressed ) 被压迫的人们，又如：the exploited class ( = the class that is exploited ) 被剥削阶级；（2）表示完成，如：the fallen leaves ( = the leaves which
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have fallen ) 落叶，又如：an escaped prisoner ( = a prisoner who has run out of prison ) 一个逃犯；（3）表示状态，如：a broken window ( = a window that is broken ) 一扇破窗子，又如：lost in thought陷入沉思。 33. Let us not waste ______ time we have left .
A. the little B. little C. a little D. a little more
答案是A项，一般地说，不定代词many , little或few前是不许使用定冠词的，但是如果它们修饰的名词有特指或限定意义时，它们前面就应使用定冠词了。如：I soon finished the few books she had lent me . (她借给我的那几本书，我很快就看完了。)又如：We must make full use of the contradictions among the enemies , winning over the many and opposing the few . (我们必须充分利用敌人的内部矛盾，争取多数，反对少数。) 34. I think the doctor is able to care of _____ is the matter with your son .
A. all B. what C. whatever D. anything
答案是C项。与前面第19题的考查点whoever一样，whatever也具备两个意思，其一是no matter what , 引导让步状语从句；其二是anything that , 引导名词性从句，在本题中，Whatever 引导的是一个宾语从句，whatever在这个宾语从句被用作主语。 35. We will take _____ wants to go there for a sight-seeing . A. whoever B. who C. anybody D. all that
答案是A项。whoever有两个词义，（1）no matter who，在这种用法时引导一个让步状语从句，如：Whoever ( = No matter who ) it is , I do not want to see them . (无论他是谁，我都不想见。)，又如：The business would be a success , whoever ( no matter
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