【正文】
助動(dòng)詞有人稱(chēng)、時(shí)態(tài)和數(shù)的變化。 : 1)一般情況在動(dòng)詞原形后 加 ed watchwatched 2)以不發(fā)音 e結(jié)尾的加 d practicepracticed 3)以輔音加 y結(jié)尾的,去 y變 i加 ed studystudied 4)以重讀閉音節(jié)結(jié)尾,末尾只有一個(gè)輔音字母, 先雙寫(xiě)該輔音字母,再加 ed stopstopped : am is are been have has had do done write written go gone 同義句轉(zhuǎn)換 1. They should allow us to have parttime jobs. ____________________________. 2. We should allow children to spend time with their friends. _____________________________________. 3. The teacher should allow Anna to finish the picture. _____________________________________. 4. Parents should allow children to choose their own friends. _____________________________________. ?The telephone ___________(invent) by Bell in 1876. ?The trees may ____________(plant) in spring. ?Teenagers should not ____________(allow) to drive. ?English ___________(speak) in Canada. ?Math must ________