精英家教網 > 初中英語 > 題目詳情
— Come and join us, Jimmy!
— I’m sorry, but I’m really busy now. If I    time, I would certainly go.
A.have B.have hadC.hadD.will have
C

試題分析:虛擬語氣是一種特殊的動詞形式,用來表示說話人所說的話并不是事實,而是一種假設、愿望、懷疑或推測。判斷是真實條件句還是非真實條件句。只有在非真實條件句中才使用虛擬語氣。通過句子意思,看假設的條件是否能夠實現,能夠實現是真實條件句,不能使用虛擬語氣;假設的條件不能實現則是非真實條件句,要用虛擬語氣.判斷這個假設是與哪個事實相反。
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”:
句意:來加入我們吧!——很抱歉,但是我現在真的很忙。如果我有時間,我肯定會去。本句是描述與現在相反的事實,故從句中用一般過去時態。選C。
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