四六級常考語法點預覽:
一、虛擬語氣
基本規則:
條件從句
主句
與現在事實相反
動詞過去式
should/would+動詞原形
與過去事實相反
had+過去分詞
should/ would +have+過去分詞
與將來事實可能相反
動詞過去式/were to/should
should/ would +動詞原形
與現在事實相反:
If I wereyou , I would apply forthe job.
與過去事實相反:
If I had taken your advice, I wouldn’t have made such mistake.
與將來事實相反:
If itrained tomorrow, I wouldstay at home.