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      1. 高考英語語法的試題講解:虛擬語氣if倒裝句

        2017-04-06 06:56:47 來源:精品學(xué)習(xí)網(wǎng)

          "高考英語語法的試題講解:虛擬語氣if倒裝句"一文由育路編輯整理,更多精選內(nèi)容請(qǐng)關(guān)注育路網(wǎng)!

          省略連詞if 采用倒裝的非真實(shí)條件句

          在書面語中,條件從句可以不用連詞if, 而將謂語中的過去式were,had或should等移至主語之前,構(gòu)成倒裝。

          例:Were you in my position, you would do the same.

          假如你處在我的地位,你也會(huì)這樣干的。

          例:Had he come earlier, he would have met her.

          要是他早點(diǎn)來的話,他就會(huì)見到她了。

          虛擬語氣在儲(chǔ)蓄條件句中的應(yīng)用

          非真實(shí)條件句中的條件從句有時(shí)不表示出來,只暗含在短語或上下文中,這種句子叫做儲(chǔ)蓄條件句。常見的有but,for ,without等引導(dǎo)的短語,以及or, or else, otherwise, but 等后面的分句。

          例:But for your help we couldn’t have succeeded in the experiment.

          如果沒有你的幫助,我們的實(shí)驗(yàn)室是不會(huì)成功的。

          例:We could have done better under more favourable conditions.

          在更有利的條件下,我們能夠做得更好些。

          經(jīng)典考點(diǎn):

          1、____right now, she would get there on Sunday.

          A)Would she leave

          B)If she leaves

          C)Were she to leave

          D)If she had left

          2、____for my illness I would have lent him a helping hand.

          A)Not being

          B)Had it not been

          C)Without being

          D)Not having been

          3、We didn’t know his telephone number, otherwise we ____him.

          A)would have telephoned

          B)must have telephoned

          C)would telephone

          D)had telephoned

          4、A safety analysis____the target as a potential dandger Unfortunately, it was never done.

          A)would identify

          B)will identify

          C)would have identified

          D)will have identified

          解析:

          1、答案選C.從句子結(jié)構(gòu)可知,本題是表示與將來事實(shí)相反的虛擬語氣。主句的謂語是“should+動(dòng)詞原形”。同時(shí),從句省略了連詞if, 可以將were提前,構(gòu)成倒裝。只以C符合語法規(guī)則。本題意思:如果她馬上動(dòng)身的話,她可能在星期天到達(dá)那里。

          2、選B.從句子結(jié)構(gòu)可知,空缺處應(yīng)填入表示與過去事實(shí)相反的虛擬條件從句,并且將連詞if 省略。此時(shí)應(yīng)把虛擬語氣的謂語動(dòng)詞提前。符合語法規(guī)則的只有B項(xiàng)。

          3、選A.本題中otherwise引出的是一種與事實(shí)相反的假設(shè)條件,后面的句子應(yīng)用虛擬語氣。前一分句暗示了一個(gè)過去的時(shí)間,所以用不著would have done的形式,相當(dāng)于If we had known his telephone number, we would have telephoned him.

          4、選C.根據(jù)unfortunately后面直接陳述一個(gè)過去的事實(shí),可以推斷出第一個(gè)句子里含有一種“應(yīng)該做某事而沒有做的”虛擬條件。C項(xiàng)用于表示與過去事實(shí)相反的虛擬語氣,正合題意。B、D不是虛擬語氣。

          (責(zé)任編輯:郭峰)

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