小學(xué)英語語法知識點學(xué)習(xí)：非真實條件句

對于一些孩子來說，在學(xué)習(xí)英語的過程中，最難的就是復(fù)雜的時態(tài)問題和一些語法變化規(guī)則，到底什么時候用he，什么時候用his，在樹上是“on the tree”還是“in the tree”呢？下面小編整理了一些關(guān)于小學(xué)生的英語語法知識，供孩子在學(xué)習(xí)過程中參考！

1）時態(tài)：可以表示過去，現(xiàn)在和將來的情況。它的基本特點是時態(tài)退后。

a.同現(xiàn)在事實相反的假設(shè)

句型 ：

條件從句　　　　　主句

一般過去時 should( would) +動詞原形

例句 If they were here， they would help you.

b.表示于過去事實相反的假設(shè)

句型：

條件從句 主句

過去完成時 should(would) have+ 過去分詞

例句

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

例句 should succeed，were to succeed， everything would be all right

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