【文章內(nèi)容簡介】 從句，這時，as指代整個主句，既可放在主句前，也可放在主句后，后一種情況往往被看做插入語，例如：As is known to us all, contributions to puter technology are no longer confined to any one country．大家都知道，對計算機技術(shù)做出貢獻的，已經(jīng)不像過去那樣僅是某一個國家了。He did it on purpose，as is often the case．這是他故意干的，情況通常是這樣。As we know, water is necessary for the existence of all forms of life. 我們知道，水對于切生物的生存是必不可少的。有些考生誤選了it，他們錯誤地認為it做形式主語，后面的Mark Twain is a great American writer做真正的主語。如將句中的逗號省略掉，并代之以that，那么選it就是正確的了。21. D【句意】太陽是星系的中心，而不是地球，在中世紀這是一個難以理解的概念。【解析】根據(jù)句子結(jié)構(gòu)我們可以看出。在was前面是一個主語從句，而主語從句必須有引導(dǎo)詞。但A，B和C中都沒有引導(dǎo)詞，因此三個均錯。D中that引導(dǎo)主語從句，在句中不做任何成分，只起引導(dǎo)詞的作用，因而D是正確答案，如。That he will refuse the offer is unlikely．他拒絕這項建議的可能性不大。22. A【句意】信不信由你，他的發(fā)現(xiàn)在科技界引起了震動。【解析】believe it or not是習(xí)慣用語，常用于口語中，意為“信不信由你，我說的是真的”。如：Believe it or not，he was granted a full scholarship by Harvard ，哈佛大學(xué)給他提供了全額獎學(xué)金。Believe it or not，I39。m feeling quite homesick．我很想家，我說的是真話。23. C【句意】世界上有數(shù)百萬種物質(zhì)?！窘馕觥縨illion一詞做數(shù)詞時不加s，如：There are two million people in that city．那座市有200萬人。另外，B中的that易使人認為它要引導(dǎo)一個名詞性從句，而且million后加s時，要和of連用，D中it is不表示“存在”之意。因此B和D錯誤。在there be結(jié)構(gòu)中，謂語動詞要和與之最近的主語在數(shù)上保持一致。句中的kinds是復(fù)數(shù)，要求其謂語動詞也用復(fù)數(shù)形式。因此A錯誤而C正確。24. C【句意】雖然人類現(xiàn)在可以創(chuàng)造出各種放射性元素，但是他們沒有辦法來減少其放射性?！窘馕觥縲hile除了引導(dǎo)時間狀語從句外，還可以引導(dǎo)讓步狀語從句，做“盡管，雖然”講，有著強烈的對比意味，例如； While I admit his good points I can see his bad ones．雖然我承認他的優(yōu)點，但我也能看得出他的缺點。whether引導(dǎo)讓步狀語從句時，通常與or連用，意為“不管……還是……”，例如。 Whether you can see the moon or not，it is always round．不管你看見與否，月亮總是圓的。 now that 意為“既然…… ”，引導(dǎo)條件狀語從句，從句內(nèi)容是既成的事實，例如： Now that you will e here，I needn39。t go there．既然你要來，我就沒必要到那兒去了。as也可以引導(dǎo)讓步狀語從句，但是該從句一般置于主句之前，且從句內(nèi)容必須倒裝，例如。 Much as he likes her，he does get irritated with her sometimes．盡管他喜歡她，可有時他確實也對她發(fā)火。Try as he would，he could not lift the rock．雖然他盡力了，但仍不能搬動那塊石頭。25. C【句意】對我來說，我認為一本英漢字典要比一本全英字典要好?！窘馕觥縜s for做“對……來說，就……而言”講，如： As for her，she prefers tea to coffee．至于她, 則更喜歡茶而不是咖啡。as（so）far as意為“就……所……”如：As far as I know，there are no peaches on the market．就我所知，市場上沒有桃子。as far不做為固定短語用。as regard也不做為固定短語用，坦as regards是固定短語，意思是“至于”，如：Now，as regards money，what is to be done？至于錢的問題，該怎么辦？26. C【句意】我一回來就了解到史密斯教授已經(jīng)到了博物館，幾個小時不會回來。【解析】on用來指時間，表示“在……之時”，相當(dāng)于at the same time of，后跟動名詞或表示動作的名詞，如： On his arrival in Qingdao he set to work in earnest一到青島他就認真地干了起來。而at，with和during 則沒有這種用法。27. D【句意】擺脫了冰的束縛，氣球越升越高，飄到了南方。【解析】根據(jù)句于結(jié)構(gòu)我們可以看出，該處應(yīng)使用分詞短語，表示原因，因此A和B應(yīng)予以排除。又因為free和balloon具有邏輯上的動賓關(guān)系，所以 C也可以排除。此處使用過去分詞表示動作的被動和完成，如：Influenced by his example，they performed countless good deeds．在他事跡的影響下，他們做了無數(shù)的好事．28. C【句意】曾經(jīng)，曼徹斯特是世界上幾個大棉廠的誕生地?！窘馕觥縜t one time意為“曾經(jīng)，一度”。如：At one time the little girl formed the habit of visiting Einstein after school every day。有一段時間，那個小女孩養(yǎng)成了個習(xí)慣，每天放學(xué)后都去看望愛因斯坦。選項A，B和D都不能和one time構(gòu)成短語，故只有C正確。29. A【句意】直到最近，英國的大部分已婚婦女還沒有離家工作?！窘馕觥縝efore，from和since與quite recently連用，不符合語法；before quite recently一般要與過去完成時連用；from（since）quite recently一般要與現(xiàn)在完成進行時連用。until用在否定句中表示“直到……才”之意，如：It was not until the beginning of the century that man began to realize that it was the brain not the heart that was the center of mind．直到本世紀初，人們才逐漸認識到是大腦而不是心臟是思維活動的中心．由此可見，A是正確答案。30. C【句意】正是從Stephen那里，他聽說了被人稱之為專家的那個人。【解析】由于英語語法要求在同一個句號前，不可以有兩個既不是并列關(guān)系，也不是從屬關(guān)系的句子，故A不是正確答案。B，C和D都使用了強調(diào)句型，但通過運用這樣一個規(guī)則“將強調(diào)句型中的it is（或was）和that（或who）省略掉，句子結(jié)構(gòu)仍然應(yīng)該是完整的”，就可看出只有 C為正確答案。例如：It was this very student that had shown great interest in the problem．就是這個學(xué)生曾對這個問題表現(xiàn)出了極大的興趣。成人學(xué)位英語考試語法詞匯綜合練習(xí)及詳解（二） 20090317 19:40:08| 分類： 英語詞匯 | 標簽：|字號大中小 訂閱 語法詞匯綜合練習(xí)二 趙文通1. _______ should any money be given to a small child. A. On no account B. From all accounts C. Of no account D. By all accounts 2. _______ some mammals came to live in the sea is now known. A. Which B. SinceC. Although D. How 3. ______ student with a little mon sense should be able to answer the question. A. Each B. Any C. Either D. One 4. _______ such a good chance, he planned to learn more. A. To be given B. Having been given C. Having given D. Giving 5. _______ that my head had cleared, my brain was also beginning to work much better. A. For B. Now C. Since D. Despite 6. _______ that the trade between the two countries reached its highest point. A. During the 196039。s B. That it was in the 196039。s C. It was in the 196039。s D. It was the 196039。s7. _______ that they may eventually reduce the amount of labor needed on construction sites by 90 percent. A. So clever are the construction robots B. So clever the construction robots are C. Such construction robots are cleverD. Such clever construction robots are 8. _______ that you were out, I wouldn39。t have bothered to e all the way at that time of night. A. If I should know B. If I know C. Had I known D. Were I to know 9. _______ the advances of science, the disforts of old age will no doubt always be with us. A. As for B. Despite C. Except D. Besides 10. _______ the claim about German economic might, it is somewhat surprising how relatively small the German economy actually is. A. To give B. Given C. Giving D. Having given 11. ______ the fact that he was in his seventies, the old man decided to swim across the channel. A. At B. Since C. Despite D. With 12. _______ the flood, the ship would have reached its destination on time. A. In case of