高中期末考試-高三英語期末之虛擬語態(tài)

2019-01-11 18:58:15 　來源：網(wǎng)絡(luò)整理

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　　高中期末診斷-高三英語期末之虛擬語態(tài)(一)

　　一、虛擬語氣謂語動(dòng)詞的幾種表現(xiàn)形式

　　1. 用在虛擬條件句中

　　虛擬條件句及其主句的謂語形式可歸納如下:

　　從句謂語

　　主句謂語

　　與現(xiàn)在事實(shí)相反

　　were,did

　　would (should, could, might) +v

　　與將來事實(shí)相反

　　(可能性極小)

　　should do,

　　were+to+v

　　would (should, could, might) +v

　　與過去事實(shí)相反

　　had done

　　would (should, could, might) + have done

　　例1：I would certainly go if I had the time.

　　例2：How nice it would be if you could stay a bit longer.

　　例3：She would have come if we had invited her.

　　注：如果條件從句中包含有were, had, should或could，有時(shí)可把if省略掉，但這時(shí)要把were, had, should或could放在主語前面(這種結(jié)構(gòu)在口語中較少使用)。例如：

　　1)Had we made (= If we had made ) adequate preparations, we might have succeeded.

　　2)Were there no gravity, there would be no air around us.

　　3)Should it rain tomorrow, the meeting would be put off.

　　2. 用在含蓄條件句中

　　句子中，假設(shè)的情況不用條件從句表示出來，而是用一個(gè)介詞短語來表示，句子的謂語形式也可遵循上表的規(guī)則。

　　這種用法也常見于or, or else, otherwise和but后面的分句中。例如：

　　1)Without music, the world would be a dull place.

　　2)But for your help, we would have failed.

　　3)She would have gone with us, but she didn’t have time.

　　4)He must have had an accident, or he would have been here then.

　　3.用在錯(cuò)綜時(shí)間條件句中

　　有時(shí)候，條件從句表示的動(dòng)作和主句表示的動(dòng)作發(fā)生的時(shí)間并不一致，這時(shí)，謂語動(dòng)詞的形式要根據(jù)表示的時(shí)間來調(diào)整，這種句子可稱作錯(cuò)綜時(shí)間條件句。例如：

　　1)If you hadn’t watched television so late, you wouldn’t be so sleepy now.(此句為時(shí)間交錯(cuò)的虛擬條件句，從句表示與過去事實(shí)相反的假設(shè)，主句則假設(shè)與現(xiàn)在情況相反)

　　2)If you were in better health, we would have allowed you to join them in the work.(從句表示與現(xiàn)在事實(shí)相反的假設(shè)，主句則表示一種與過去事實(shí)相反的設(shè)想)

　　4.用在wish后的賓語從句中

　　這種句子主要表示愿望，that常省略。若指現(xiàn)在或?qū)淼脑竿�，從句用過去時(shí);若指過去沒有實(shí)現(xiàn)的愿望，從句用過去完成時(shí)。例如：

　　1)I wish I had learned to play chess.(與過去事實(shí)相反)

　　2)I wish I remembered his address.(與現(xiàn)在事實(shí)相反)

　　3)I wish he would try again.(對(duì)將來情況的假設(shè))

　　若wish 后的賓語從句中用would，可以表示請(qǐng)求，通常意味著說話人的不快或不滿。例如：

　　1)I wish you would help us.

　　2)I wish you would stop asking such silly questions.

　　5.用在if only感嘆句中

　　當(dāng)表示“但愿”，“要是…就好”時(shí)，它的用法和wish基本相同，只是更富有感情色彩，表示一時(shí)很難實(shí)現(xiàn)的愿望。例如：

　　1)If only I knew what you wanted.

　　2)If only you hadn’t told him what I said, everything would have been all right.

　　6.用在以as if (as though) 引出的方式狀語從句中

　　當(dāng)表示過去想象中的動(dòng)作或情況時(shí)，用過去完成時(shí);當(dāng)表示和現(xiàn)在事實(shí)相反或?qū)ΜF(xiàn)在情況有所懷疑時(shí)，用一般過去時(shí)。例如：

　　1)The old couple loved the orphan girl as if she had been their daughter.

　　2)It seems as if it were spring.

　　7.用在某些虛擬的定語從句中

　　例1：He was the very person I should have been wished to see.

　　例2：It’s (high) time that we went to class.

　　8.用以表示說話人的主觀愿望或選擇，僅用在一些慣用句型的從句中

　　例1：I’d rather they came tomorrow.

　　例2：He’d rather I went to Fuzhou by sea.

　　例3：I’d just as soon you didn’t watch television this evening.

　　但had rather, would rather, would just as soon, would sooner等慣用語如用在簡(jiǎn)單句中，其后都用不加to的動(dòng)詞不定式。例如：

　　1)I’d rather die than give up my principle.

　　2)I’d just as soon (would sooner) resign than take part in such dishonest deals.

　　高中期末診斷-高三英語期末之虛擬語態(tài)(二)

　　二、用固定的情態(tài)動(dòng)詞表示的虛擬語氣

　　1. should +動(dòng)詞原形(有時(shí)省略should)

　　(1)用在動(dòng)詞如advise, command, demand, desire, insist, order, propose, recommend, request, require, suggest, urge等后的賓語從句中。例如：

　　1)They requested that we (should) send a delegation to their country.

　　2)She urged that he write and accept the post.

　　(2)用在it is suggested, it is desired, it is required, it was ordered, it was proposed, it has been decided, it is necessary (essential, imperative, important, desirable) that等引出的主語從句中。例如：

　　1)It is desired that we (should) get everything ready by tonight.

　　2)It is necessary that the teacher (should) have a thorough knowledge of the subject he teaches.

　　(3)用在suggestion, motion, proposal, order, recommendation, plan, idea, requirement等引起的表語從句和同位語從句

　　例如：He put his coat over the child lest he should catch cold.

　　2.用在表示比擬的方式狀語從句中

　　例如：They talked as if they had been friends for years.

　　3.用在表示虛擬情況的定語從句中

　　例如：It is high time you handed in your test paper.

　　4.用在某些表示主觀愿望的名詞從句中

　　例1：I wish I were as strong as you.

　　例2：He insisted that we (should) take up the matter at the meeting.

　　5.用在婉轉(zhuǎn)的請(qǐng)求、建議、批評(píng)等句子中

　　例1：Could you spare me a few minutes?

　　例2：You might have told me earlier.

　　例3：Hadn’t you better go and see you dentist about that tooth?

　　6.用在表示祝愿的簡(jiǎn)單句中

　　例1：Long live world peace.

　　例2：May you succeed.

　　高中期末診斷-高三英語期末之虛擬語態(tài)(三)

　　(一)并不是if引導(dǎo)的條件從句都是虛擬語氣。如果if從句所指的事很有可能發(fā)生，那么這是真實(shí)條件句;反之，則是虛擬條件句

　　A. If you study hard, you'll surely pass the examination. (真實(shí)條件句) B. If I were a bird, I could fly freely in the sky. (虛擬條件句)

　　(二)虛擬語氣中，有時(shí)條件從句和主句的時(shí)態(tài)可以不一致，這種句子叫做混合條件句，也叫錯(cuò)綜時(shí)間條件句。這種句子的形式要根據(jù)表示的時(shí)間來調(diào)整

　　A. If it had not been for me, you would not be free. B. If you had spoken to him yesterday, you would know what to do now. C. “If I had missed, ”said William Tell, “and had shot too low, I was going to use this arrow on you. ”

　　(三)有時(shí)虛擬條件不用條件從句，而用介詞短語來表示

　　A. They would not be able to live without him. B. He would have failed but for his teacher's timely advice. C. I had my hair cut off and sold it because I couldn't have lived through Christmas without giving you a present. D. If only you had worked with greater care!

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