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中考英語(yǔ)《一般過(guò)去時(shí)》知識(shí)點(diǎn)：三種變化技巧
一變：肯定句變?yōu)榉穸ň?/strong>
【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. → I could 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 was not / 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did not / 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.
二變：陳述句變?yōu)橐话阋蓡?wèn)句
【技巧1】移動(dòng)詞語(yǔ)的位置。將was，were,could，would，should等移到句首。例如：
He could pack his things himself. → Could he pack his things himself?
【技巧2】添加助動(dòng)詞did。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)，在主語(yǔ)之前加did，動(dòng)詞還原。例如：
Mr Li looked very old. → Did Mr Li look very old?
三變：陳述句變?yōu)樘厥庖蓡?wèn)句
【技巧1】確定疑問(wèn)詞：人who / whom，物what，地點(diǎn)where，時(shí)間when / what time，原因why，頻率how often，長(zhǎng)度how long，距離how far等等。例如：
They gave the concert last night. → When did they give the concert?
【技巧2】辨認(rèn)結(jié)構(gòu)形式：疑問(wèn)詞+情態(tài)動(dòng)詞/助動(dòng)詞/ was / were / did +主語(yǔ)+...? 例如：
The accident happened near the station. → Where did the accident happen.