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you, I would take an umbrella. 如果我是你,我會(huì)帶把傘。(事實(shí)上我不知道) 與過去事實(shí)相反 若與過去事實(shí)相反,從句:主語+had done , 主句:主語+should/would/could/might+have done ,例如: If I’d left sooner,I’d have been on time. 要是我早點(diǎn)動(dòng)身,我就準(zhǔn)時(shí)到了。 (事實(shí):去晚了) 與將來事實(shí)相反 從句:①if+主語+were to do 主句:①主語+should/would/could/might+do ?、趇f+主語+did/were ②主語+should/would/could/might+do ?、踚f+主語+should+do ③主語+should/would/could/might+do 例如:If he went,would you go too? 如果他去,你也去嗎?(大概他不會(huì)去) If he should e here tomorrow, I would talk to him. 如果他明天來這兒的話,我就跟他談?wù)劇?br /> 二是此