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  • 1 # 轉角~瑩流花香

    .與現在事實相反的假設

    條件從句 主句

    一般過去時(be用were) should(would)等 +動詞原形

    例如:If they were here,they would help you.如果他們在這兒,

    含義:They are not here,they can’t help you.

    b.與過去事實相反的假設

    條件從句 主句

    過去完成時 should(would)等+ have+ 過去分詞

    例如:If he had come yesterday,I should / would have told him about it.如果他昨天來的話,我會把這件事告訴他的.

    含義:He did not come yesterday,so I did not tell him about it.

    c.表示對將來不大可能發生的事情的假想

    條件從句 主句

    一般過去時 should/would等 + 動詞原形

    were+ 不定式

    should+ 動詞原形

    例如:If you succeeded,everything would be all right.如果你將來成功了,一切都會好的.

    If you should succeed,everything would be all right.

    If you were to succeed,everything would be all right.

    含義:You are not likely to succeed,everything will be what it is now.

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