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1，虛擬條件句的三種基本類型

虛擬條件句的三種基本類型是與現在事實相反、與過去事實相反、與將來事實相反。1、與現在事實相反若與現在事實相反，條件從句的謂語用過去式（be通常用were），主句謂語用“should（would，could，might）+動詞原形”。2、與過去事實相反若與過去事實相反，條件從句的謂語用過去完成時（had+過去分詞），主句謂語用“should（would，could，might）+have+過去分詞”。3、與將來事實相反若與將來事實相反，條件從句的謂語用過去式（be通常用were），主句謂語用“should（would，could，might）+動詞原形”。擴展資料寫虛擬條件句的注意事項：1、主句謂語中的should主要用于第一人稱后，其中would表示結果，might表示可能性，could表示能力、允許或可能性。2、對于與將來事實相反的情形，需注意：（1）與將來事實相反實為對將來情況的推測；（2）此用法中的條件從句謂語除用過去式外，有時也用“should+動詞原形”（表示可能性極小，常譯為“萬一”）或“were to+動詞原形”（表示與將來事實相反的假設）；3、當條件從句使用“should+動詞原形”這樣的謂語時，主句謂語除可用“should（would, could, might）+動詞原形”這樣的虛擬語氣外，也可用直陳語氣或祈使語氣。

虛擬條件句的三種基本類型

2，虛擬條件句是什么

虛擬條件句 1與現在事實相反，從句謂語用動詞過去式（be動詞一般用were）；主句用should(would,could,might) do 2與將來事實相反：從句謂語可用動詞過去式，should do動詞原形或者用were to do；主句謂語形式也是用should(would,could,might) do 3，與過去相反的事實，從句中用had done；主句謂語是由should(would,could,might) have done 例句上面有，不再贅述分詞獨立主格結構（一）獨立主格結構的構成：名詞(代詞)+現在分詞、過去分詞；名詞(代詞)+形容詞；名詞(代詞)+副詞；名詞(代詞)+不定式；名詞(代詞) +介詞短語構成。（二）獨立主格結構的特點： 1）獨立主格結構的邏輯主語與句子的主語不同，它獨立存在。 2）名詞或代詞與后面的分詞，形容詞，副詞，不定式，介詞等是主謂關系。 3）獨立主格結構一般有逗號與主句分開。下面是幾個例句 The test finished, we began our holiday. = When the test was finished, ......... Weather permitting, we are going to visit you tomorrow=If weather permits, ........ He came into the room, his ears red with cold

虛擬條件句是什么

3，引導虛擬條件句

1.比如有人問誰拿了他的書，你就可以說“It could be anybody誰都有可能。”2.suppose為什么要變成非謂語動詞形式呢？因為在英語中，一個句子只能有一個謂語，你看這個句子you后邊的had已經作為謂語了，suppose就得變成非謂語了。

1. (表示條件)如果 ,主句用將來時，if從句用現在時表示將來 he will come if you invite him. 如果你請他,他會來的。 2. (表示虛擬)假如,要是 1）時態：可以表示過去，現在和將來的情況。它的基本特點是時態退后。 a. 同現在事實相反的假設。句型：條件從句主句一般過去時 should( would) +動詞原形 if they were here, they would help you. b. 表示于過去事實相反的假設。句型：條件從句主句過去完成時 should(would) have+ 過去分詞 if she had worked harder, she would have succeeded. the rice would not have been burnt if you had been more careful. if my lawyer had been here last saturday, he would have prevented me from going. if he had come yesterday, i should / would have told him about it. 含義：he did not come yesterday, so i did not tell him about it. if he had not been ill and missed many classes, he would have made greater progress. 含義： he was ill and missed many lessons, so he did not make greater progress. c. 表示對將來的假想句型：條件從句主句一般過去時 should+ 動詞原形 were+ 不定式 would + 動詞原形 should+ 動詞原形 if you succeeded, everything would be all right. if you should succeed, everything would be all right. if you were to succeed, everything would be all right. 3. 是否 = whether 連接賓語從句 i wonder if she is ill.

引導虛擬條件句