2023年初中英語(yǔ)一般過(guò)去時(shí)變化技巧一

【技巧1】當(dāng)句中含有情態(tài)動(dòng)詞或助動(dòng)詞could，would，should等時(shí)，可直接在其后面加not構(gòu)成否定句。例如：

I could get you a concert ticket.→Icould not/couldn‘t get you a concert ticket.

【技巧2】當(dāng)句中含有系動(dòng)詞was，were時(shí)，可直接在其后加not構(gòu)成否定句。例如：

I was on the Internet when you called me.→I wasnot/wasn’t on the Internet when you called me.

【技巧3】當(dāng)句中謂語(yǔ)是除情態(tài)動(dòng)詞、助動(dòng)詞、系動(dòng)詞was，were以外的動(dòng)詞時(shí)，在該動(dòng)詞之前加didnot/didn‘t，動(dòng)詞還原，構(gòu)成否定句。例如：

The famous singer sang some Chinese songs.→The famous singer did not/didn’t sing any Chinese songs.

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