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7. I couldn't have got to the meeting on time - _______ an earlier train .

A. if I had not caught   B. unless I had caught   C. if I did not catch   D. unless I caught

答案是B項(xiàng)。if…not和unless有時(shí)可以互相替換,但也有不能互相替換的時(shí)候。unless用于這樣的句子,即"如果A不受阻于B,A將發(fā)生",例如:He will accept the job if the salary is not too low / unless the salary is too low . (如果薪水不太低,他就會(huì)接受這一工作/除非薪水太低,否則他會(huì)接受這一項(xiàng)工作的。)但是unless不能用于"由于未發(fā)生B而發(fā)生A"的句子里,如:I will be quite glad if she does not come this evening (她今天晚上要是不來,我才高興呢。)又如:I will be surprised if he does not win the game next week . (如果他贏不了下星期那場比賽,我倒會(huì)感到驚奇的。)在以上的兩個(gè)句子中不能使用unless,但是unless常用來引導(dǎo)一個(gè)談及過去的事后的想法,unless從句跟著主句,通常用破折號(hào)而不是逗號(hào)將它與主句分開。第7題的句意是:我不可能準(zhǔn)時(shí)到會(huì)了-除非我當(dāng)時(shí)趕上更早一列火車。這個(gè)句子的實(shí)際是說:我沒有準(zhǔn)時(shí)到會(huì)。我只有趕上更早的一趟火車,才能準(zhǔn)時(shí)到會(huì)。如果用if … not代替上面句中的unless,那么這個(gè)句子就變成:I couldn't have got to the meeting on time if I hadn't caught an earlier train . (要不是我趕上了更早的一班火車,我就不可能準(zhǔn)時(shí)到會(huì)。)這句話表達(dá)的意思與上句完全相反:我確實(shí)準(zhǔn)時(shí)到會(huì)了,因?yàn)槲亿s上了更早的一趟火車。

試題詳情

6. I'd better not catch ______ that again !

   A. your doing    B. you doing    C. you to do    D. you being doing

答案是B項(xiàng)。如同感觀動(dòng)詞一樣,下面這些動(dòng)詞后只能跟代詞的賓格或名詞的通格(如him , Mary),其后是"動(dòng)詞-ing":start , keep , stop , catch , find , leave , 如:When are you going to start him working for us ? (你打算什么時(shí)候讓他開始為我們工作?)。應(yīng)該指出感觀動(dòng)詞后的賓語既可跟著"動(dòng)詞-ing"形式,又可跟著不帶to動(dòng)詞不定式,但以上這些動(dòng)詞后總跟著賓語+動(dòng)詞-ing的形式。

試題詳情

5. I posted the letter some time _____ the week .

   A. in       B. during     C. throughout      D. within

答案是B項(xiàng)。如同感觀動(dòng)詞一樣,下面這些動(dòng)詞后只能跟代詞的賓格或名詞的通格(如him , Mary),其后是"動(dòng)詞-ing":start , keep , stop , catch , find , leave , 如:When are you going to start him working for us ? (你打算什么時(shí)候讓他開始為我們工作?)。應(yīng)該指出感觀動(dòng)詞后的賓語既可跟著"動(dòng)詞-ing"形式,又可跟著不帶to動(dòng)詞不定式,但以上這些動(dòng)詞后總跟著賓語+動(dòng)詞-ing的形式。

試題詳情

4. Take a taxi , _____ you'll miss your train .

  A. and     B. if      C. otherwise    D. or

答案是C項(xiàng)。祈使句可用來取代if從句來表示評(píng)論、提出要求、發(fā)出忠告或威脅等。用祈使句比用if從句表達(dá)更強(qiáng)的緊迫性。在表示評(píng)論和要求時(shí),其連詞用and,表示忠告時(shí)用連詞otherwise,表示威脅時(shí),用連詞or。例如:Fail to pay and they will cut off the electricity . (不交錢,他們就會(huì)中斷供電。)這是客觀的評(píng)論;Tell us what to do and we will get on with it . (如果你告訴我們?cè)撟鲂┦裁矗覀兙蜁?huì)把它做好。)這明顯是請(qǐng)求;Put on you overcoat when you go out , otherwise you will catch cold . (外出時(shí)你應(yīng)該穿上大衣,不然的話你會(huì)感冒的。)顯然這是忠告;Drop that gun , or I will shoot you . (把槍放下,否則我就開槍打死你。)很明顯,這是威脅。

試題詳情

3. If you _____ stop smoking , you can only expect to have a bad cough .

A. won't    B. would not    C. do not    D. can not

答案是A項(xiàng)。will除了用作表示將來時(shí)的助動(dòng)詞外,還可用來強(qiáng)調(diào)愿意或不愿意。又如: If you will would wait a moment , I will fetch the money . (如果你肯/愿意稍等片刻,我就把錢取來。)但是在表示不肯或不愿意時(shí),則只能使用won't,不能使用would not。

試題詳情

2. There must be _____ book which could help .

  A. some    B. any     C. one    D. one useful

答案是A項(xiàng)。some除了用作數(shù)量詞外,還可用來泛指未知的人或事物。又如:There must be some reason for what he has done . (他所做的事肯定基于某種原因。)

試題詳情

1. I hope _____ the job she's applied for (申請(qǐng)) .

A. she's going to get    B. she'll get   C. she is to get    D. she decides to get

答案是B項(xiàng)。will或shall用來表示希望或期望。因此在表示與希望有關(guān)的動(dòng)詞或動(dòng)詞短語的賓語從句中的將來時(shí)態(tài)時(shí),要用will或shall。這些動(dòng)詞或短語是:hope , expect , be sure , believe , think , suppose , doubt 和be afraid 等。

試題詳情

50.Sarah hopes to become a friend of _____ shares her interests. 

 A. anyone  B. whomever  C. whoever  D. no matter who

答案解析:此題不能選A,假若選A,應(yīng)在其后加上who,即用 anyone who;也不能選B,一是因?yàn)闄M線處應(yīng)填一個(gè)作主語的詞(因?yàn)槠浜笥兄^語動(dòng)詞 shares),二是因?yàn)樵诂F(xiàn)代英語中 whomever這個(gè)詞已基本廢除 也就是說,在現(xiàn)代英語中whoever 既用做主語,也用做賓語,如:Give it to whoever you see in the meeting-room. 你在會(huì)議室里看見誰就把它給誰);也不能選D,因?yàn)?no matter who只用于引導(dǎo)讓步狀語從句,不用于引導(dǎo)名詞性從句。此題正確答案為C,whoever 在此相當(dāng)于 anyone who。

近年來,高考試卷中也常有這種"陷阱"題出現(xiàn)。當(dāng)同學(xué)們遇到這種題時(shí),既不可“輕易下手”,也不可不知所措,而應(yīng)做到先三思而后行。首先,同學(xué)們要認(rèn)真審題,發(fā)現(xiàn)“陷阱”。要靈活地運(yùn)用語法規(guī)則,理順?biāo)悸,尋找“陷阱”。其次,要運(yùn)用多向思維,分析“陷阱”。不要用習(xí)慣的、單一的、片面的思維去解題。再次,要去偽存真,識(shí)別“陷阱”。要抓住基本知識(shí)點(diǎn)及特殊現(xiàn)象,不厭其煩地歸納理解,認(rèn)清選擇題目中的“魚目”及“珍珠”,避免落入“陷阱”。最后就是要加強(qiáng)驗(yàn)證,跳出“陷阱”。這就要求學(xué)習(xí)者要有良好的檢查驗(yàn)證習(xí)慣,掌握驗(yàn)證的方法,即使落入了“陷阱”,也能在驗(yàn)證過程中,發(fā)現(xiàn)“陷阱”,并迅速地跳出來。

高中英語單項(xiàng)選擇題講練

試題詳情

49.I'll come to see you if _____. 

A. you're convenient  B. it is convenient for you  C. you feel convenient  D. it is convenient with you

答案解析:此題最佳答案為B,但很容易誤選A或C,因?yàn)榘礉h語意思,我們常說“如果你方便的話”,所以許多同學(xué)就將此直譯為if you are convenient或if you feel convenient。但事實(shí)上,英語中convenient的意思不是“感到方便的”,而是“使人感到方便的”,所以be convenient的主語不能是“人”。要表示“如果你方便的話”,英語通常說if it is convenient for[to]you,其中的介詞可用for或to,但一般不用with。

試題詳情

48. --- Don't forget to come to my birthday party tomorrow.    ---______ . 

 A.I don't   B.I won't   C.I can't   D.I haven't

答案解析::完整回答為I won't forget to come to your birthday party tomorrow.答案為B. 選A是受上一句中Don't 影響。

試題詳情


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