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高考沖刺語法梳理五:虛擬語氣

時(shí)間:2024-07-16 21:21:55 來源:網(wǎng)絡(luò) 作者:mrcsb 人氣:944
【導(dǎo)讀】:虛擬語氣I.要點(diǎn)表示說的話不是事實(shí),或者是不可能發(fā)生的情況,而是一種愿望、建議或與事實(shí)相反的假設(shè)等。一般常用于正式的書面語中。1、虛擬語氣的構(gòu)成情景條件從句的謂語動(dòng)詞主...

虛擬語氣

I要點(diǎn)

表示說的話不是事實(shí),或者是不可能發(fā)生的情況,而是一種愿望、建議或與事實(shí)相反的假設(shè)等。一般常用于正式的書面語中。

1、虛擬語氣的構(gòu)成

情景

條件從句的謂語動(dòng)詞

主句的謂語動(dòng)詞

與現(xiàn)在事實(shí)相反

動(dòng)詞過去式(be要用were)

should

+動(dòng)詞原形

would

與過去事實(shí)相反

had +過去分詞

should

+have+過去分詞

would

與將來事實(shí)相反

1、動(dòng)詞過去時(shí)

2、should +動(dòng)詞原形

3、were to +動(dòng)詞原形

should

+動(dòng)詞原形

would

注:如果條件從句謂語動(dòng)詞包含有were或had, should, could有時(shí)可將if省去, 但要倒裝。如:

Had you (If you had) invited us, we would have come to your party.

2、虛擬語氣在各種從句的應(yīng)用

(1)在主語從句中用來表示驚奇、惋惜、理應(yīng)如此等,其謂語形式是"should(可省) +動(dòng)詞原形",常用于以下三種句型中。

句型一:It is necessary (important, natural, strange, etc) that…

句型二:It is a pity (a shame, no wonder, etc) that…

句型三:It is suggested (requested, proposed, desired, etc) that…

如:It is strange that he (should) have done that.

It is a pity that he (should) be so careless.

It is requested that we (should) be so careless.

(2)在賓語從句中用于suggest, propose, move, insist, desire, demand, request, order, command等動(dòng)詞后的賓語從句中,表間接的命令和建議。其謂語形式是"(should)+動(dòng)詞原形"。如:

I suggest that we (should) go swimming.

(3)在表語從句中,表示間接的命令,要求、請(qǐng)求、建議、決定等,主句中的主語通常是suggestion, proposal, request, orders, idea等。從句謂語形式是"(should)+動(dòng)詞原形"。如:

His suggestion is that we (should) leave at once.

(4)在同位語從句中,謂語形式是"(should)+動(dòng)詞原形"。如:

We received order that the work be done at once.

(5)在It is time that…句型中,其謂語動(dòng)詞形式是"動(dòng)詞的過去式"或

"should +動(dòng)詞原形",should不可省。如:

It's time that we went ( should )go to school.

II例題

例1We had hoped that he ____ longer.

A stays B have stayed C stayed D would stay

解析:該題正確答案為D。had hoped表示"本希望",同樣用法的動(dòng)詞還有think, expect等,后面的句子需用虛擬語氣

例2"Mary wants to see you today".

"I would rather she ____ tomorrow than today."

A comes B came C should come D will come

解析:該題正確答案為B。would rather后面的從句需用虛擬語氣,用動(dòng)詞過去時(shí)表示。

例3Had she been older, she ____ it better.

A had done B might have done

C might do D would do

解析:Had she been older = If she had been old. 故該題正確答案為B。

文章標(biāo)簽:
    虛擬語氣講解,虛擬語氣語法
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