在英語學(xué)習(xí)中，虛擬語氣通常是重點(diǎn)加難點(diǎn)，考試從來不會(huì)少出，但又往往弄得同學(xué)們焦頭爛額，丟分不斷，滬江小編今天就來和大家一起學(xué)習(xí)一下什么是虛擬語氣。

英語的動(dòng)詞有三種語氣形式，即陳述語氣、祈使語氣和虛擬語氣，陳述語氣用來說明事實(shí)或就事實(shí)提出詢問，祈使語氣用于表示請(qǐng)求、命令、建議或警告等，而虛擬語氣則是謂語動(dòng)詞的一種特殊形式，用來表達(dá)假設(shè)、猜測(cè)、可能或空想等虛擬情況，也可以表示主觀愿望或表達(dá)某種強(qiáng)烈的感情，通常出現(xiàn)在各類從句中。

一. 條件狀語從句：

時(shí)間

?????從句謂語形式

???主句謂語形式

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將來

?if ＋ 主語＋ 動(dòng)詞過去式(be用were)

?if＋主語＋should +?動(dòng)詞原形

?if＋主語＋were to +?動(dòng)詞原形

?

?? 主語＋would / should / might / could +?動(dòng)詞原形

現(xiàn)在

?if ＋主語＋ 動(dòng)詞一般過去時(shí)

??? 主語＋ would / should / might / could +?動(dòng)詞原形

過去

?if＋ 主語＋had done

??? 主語＋would / should / might / could have +?動(dòng)詞過去分詞

例句：

1.現(xiàn)在：

If I were you，I would choose that picture.

2.過去：

If you had taken my advice，you would not have made such a mistake.

3.將來：

If there were a sunny day next Sunday，we would go hiking.

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二. 目的狀語從句：

1.在for fear that，in case，lest引導(dǎo)的從句中，若用虛擬語氣時(shí)，從句謂語為：（should） + do。

eg. He started out earlier in case he (should) be late.

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2.在so that，in order that所引導(dǎo)的目的狀語從句中，從句中的謂語為：can / could / may / might / will / would /should + do。
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eg. He goes closer to the speaker so that he can hear him clearer.
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三. 原因狀語從句：
?
1. should + 原形動(dòng)詞,表現(xiàn)在或?qū)?/div>
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eg. He was angry that you should call him by name.

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2. should + 完成式, 表過去

eg. I’m very sorry that you should have failed the test.

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四.方式狀語從句：

虛擬語氣常用于as if, as though 引導(dǎo)的方式狀語從句：

?時(shí)間

?結(jié)構(gòu)

?主句動(dòng)作之前

?had + 過去分詞

?主句動(dòng)作之后

?would / could / might / should+動(dòng)詞原形

eg. They began to talk warmly as if they had known each other for long.

????? They stopped talking as if someone should come.

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以上就是滬江小編為大家整理的幾種常見的虛擬語氣用法，不知道大家有沒有好好消化呢？虛擬語氣無論大小考試都是必出的重點(diǎn)，同學(xué)們必須熟練掌握啊。小編覺得只要多看多練，照著例句自己仿寫一下，相信大家很快就能攻破虛擬語氣這個(gè)大難點(diǎn)了。