高二英語語法學(xué)習(xí)之虛擬語氣講解
2011-09-02 18:52:15百度文庫
導(dǎo)語:高中英語語法中的虛擬語氣包括了在條件句、名詞性從句等中的應(yīng)用,是英語學(xué)習(xí)中的一個難點語法,一下是具體內(nèi)容:
1、虛擬語氣用于條件狀語從句中
。1)表示與現(xiàn)在事實相反的假設(shè),條件狀語從句中的謂語動詞用"過去式(be動詞的過去式用were)",而主句中的謂語動詞用"would / should/ could / might + 動詞原形"。如:
If I were a boy, I would join the army.
If the had time, she should go with you.
。2)表示與過去的事實相反,條件狀語從句中的謂語動詞用過去完成時,主句中的謂語動詞則用"would / should / might / could + have +過去分詞"。如:
If he had taken my advice, he would have succeeded in the competition.
。3)表示與將來事實相反,條件狀語從句中的謂語動詞一般過去時或should(were to) + 動詞原形,而主句中的謂語動詞則用would / should/
could might + 動詞原形。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)生的時間不一致時,動詞的形式要根據(jù)它所表示的時間作相應(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)
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