虛擬語氣語法

語法一直是困擾考生的一大難題，我們?cè)趯W(xué)習(xí)虛擬語氣的時(shí)候要掌握相關(guān)的語法，這樣我們才能夠?qū)W好虛擬語氣的知識(shí)，接下來我們邀請(qǐng)了學(xué)大的資深英語老師為我們講解虛擬語氣語法，希望能夠使大家提高。

(1)表示與現(xiàn)在事實(shí)相反的假設(shè)，條件狀語從句中的謂語動(dòng)詞用“過去式(be動(dòng)詞的過去式用were)”，而主句中的謂語動(dòng)詞用“would / should/ could / might + 動(dòng)詞原形”。如： If I were a boy, I would join the army. If the had time, she should go with you.

(2)表示與過去的事實(shí)相反，條件狀語從句中的謂語動(dòng)詞用過去完成時(shí)，主句中的謂語動(dòng)詞則用“would / should / might / could + have +過去分詞”。如： If he had taken my advice, he would have succeeded in the competition.

(3)表示與將來事實(shí)相反，條件狀語從句中的謂語動(dòng)詞一般過去時(shí)或should(were to) + 動(dòng)詞原形，而主句中的謂語動(dòng)詞則用would / should/ could might + 動(dòng)詞原形。如; If it were to rain tomorrow, the football match would be put off.

(4)當(dāng)條件狀語從句表示的行為和主句表示的行為所發(fā)生的時(shí)間不一致時(shí)，動(dòng)詞的形式要根據(jù)它所表示的時(shí)間作相應(yīng)調(diào)整。如： If they had worked hard, they would be very tired.(從句說的是過去，主句指的是現(xiàn)在) 以下表格是虛擬語氣用于條件狀語從句中時(shí)，主句和從句謂語動(dòng)詞的形式： 條件狀語從句 主 句與過去事實(shí)相反 had + 過去分詞 should /would/could/might + have + 過去分詞與現(xiàn)在事實(shí)相反 一般過去時(shí)(be用were) would/should/could/might + 動(dòng)詞原形與將來事實(shí)相反 一般過去時(shí)或should(were to) + 動(dòng)詞原形 Would/should/cold/might + 動(dòng)詞原形 有時(shí)侯在使用時(shí)可省略if,句子則可換成下列形式，即“were / had / should +主語”。如： Were I a boy, I would join the army. Had he taken my advice, he would have succeeded. Were it not for the expense, I would go to Britain.

虛擬語氣語法不難掌握，希望我們?cè)趯W(xué)習(xí)虛擬語氣語法的時(shí)候多下功夫，爭(zhēng)取掌握住相關(guān)的知識(shí)和語法，在考試出現(xiàn)虛擬語氣的考題時(shí)我們能夠輕松應(yīng)對(duì)。