【正文】
we, you 后面,其余不變。刪除do 其余不變;刪除does后要在動詞后加上s或es;刪除did后,動詞要變?yōu)檫^去式。 三、肯定句變成否定句 :直接在is am are (was were) can may would will should后面加上not , 其余不變. 如果沒有is am are (was were) can may would will should,就直接在句中動詞前加 don’t,doesn’t didn’t, 加后動詞回到原形。去掉don’t,其余不變;去掉doesn’t, 動詞加上s或es;去掉 didn’t,動詞變成過去式。五、對一般疑問句作肯定回答:Yes,:No,____________.后面部分根據(jù)具體情況而定。2 、在句中找出is am are (was were) can may would will should的其中一個, 并放在疑問詞后面。(如果動詞是原形,用do;如果動詞帶有s或es,用does:如果動詞是過去式,用did)其余照抄,劃線部分一般不出現(xiàn)在問句中?!緦崙?zhàn)演練】一、根據(jù)要求變換句式1. She does housework at the weekends. (改為否定句) 2. Mike runs as fast as Ben. (改為一般疑問句) 3. I get up at six thirty every day. (用yesterday afternoon替代every day) 4. Nancy is good at English and Math. (對畫線部分提問) 5. The policeman caught the thief. (改為一般疑問句,作否定回答) 6. My sister is thirty kilos. (對畫線部分提問) 7. Turn right at the third crossing. (改為否定句)