2012年考研英語語法專項突破訓(xùn)練及解析(4)

　　1. If you have been generous to a person for a period of time, it is most likely that the person will take advantage of your generosity and trade on your “weakness” become appreciative of your kindness.

　　A. but not B.let alone C. rather than D. instead of

　　2. A poet must not write for the ages past, but for in which he lives and those which are to follow.

　　A. one B. those C. the one D. that

　　3. There is a delicate balance of nature many square miles of ocean and vegetation and clean air are needed to maintain only a relatively few human beings.

　　A. where B. in which C. when D. how

　　4. There are cases new factories are being put up and beautiful old trees are going to be cut down for a new factory.

　　A. which B. where C. that D. when

　　5. Somebody in the next room must be ill, a doctor has just come out.

　　A. because B. for C. in that D. as

　　6. He would always ignore the fact of such a contradiction in his inner thought.

　　A. there to be B. there being C. it being D. there having been

　　7. A convenient way is to set the food on a piece of aluminum oil, to the air for half an hour, and then cover it with a dish.

　　A. let it stay open B. let it stayed open

　　C. letting it stay open D. letting it stay opened

　　8. They us willingly but that they happened to be short of hands, too.

　　A. would help B. would have helped

　　C. were going to help D. must have helped

　　9. Research findings show that we spend about two hours dreaming every night,no matter what we during the day.

　　A. should have done B. would have done

　　C. may have done D. must have done

　　10. If you are to catch a train, it is always better to be comfortably early than even a fraction of a minute late.

　　A. too B. very C. much D. rather

　　1. Crather than 表示對比，在意思上前后形成對照：take advantage of your generosity…rather than become appreciative of your kindness意為“利用你的慷慨，而不是理解你的好意”。另外，rather than在結(jié)構(gòu)上起并列作用，使take advantage與become appreciative平行。

　　2. Cthe one替代the age，還原為：…but must write for the age in which he lives and the ages which are to follow。

　　3. Bin which在定語從句中做狀語，相當(dāng)于in the balance of nature (many square miles of…)。

　　4. Cthat引導(dǎo)case的同位語從句，其他連接詞都不合適。

　　5. Bfor連接一個原因分句，對前面的推測做原因上的解釋。請考生記�。簾o論從邏輯推理還是從語法規(guī)則上看，只要前面是表示推測的句子，后面大都用for連接后一句，而不用其他連詞。

　　6. Bthere being 做介詞of 的賓語，如果是介詞for，則用there to be。

　　7. C分詞短語做伴隨狀語，形容詞open在分詞短語中做補語，表示狀態(tài)，不用過去分詞，所以D不正確。

　　8. B此句是含蓄虛擬語氣句，暗含的假設(shè)條件為：if they hadn’t happened to be short of hands。故應(yīng)選B。

　　9. Cmay have done“(不管我們白天)可能做了些什么”，符合句意。should have done“本該做(但實際未做)”;would have done表示與過去相反的假設(shè);must have done是對已發(fā)生的情況作肯定推測。

　　10. A句中too late相當(dāng)于too late to catch the train，所以選其他詞不合適。

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