【正文】
一:英語的謂語動詞有兩種語態(tài) We speak English. 主語 謂語 賓語 English is spoken by us. 主語 謂語 賓語 賓變主 ,主變賓 ,前加 by 動變被 ,看清 be, 結(jié)構(gòu)分別 be+ pp 主動語態(tài) 被動語態(tài) 主變被解題步驟 : 1. 找賓語 即動作的承受者 They make shoes in that factory. Shoes 2. 判斷賓語的單復(fù)數(shù) 即 be動詞的單復(fù)數(shù) . are were 3. 判斷動詞的時態(tài) 即 be動詞的時態(tài) . 4. 修改謂語的時態(tài) 即原句動詞改為過去分詞 made 5. 修改原句的主語 即 by+ 主語 / 賓語 . by them. Tom broke the window. The window was broken by Tom. Tom broke the windows. The windows were broken by Tom. He broke the windows. The windows were broken by him. 一般現(xiàn)在時: am / is / are done 一般過去時: was / were done 現(xiàn)在進行時: am / is / are being done 過去進行時: was / were being done 現(xiàn)在完成時: have / has been done 過去完成時: had been done 一般將來時: shall / will be done 。 be going to be done 當(dāng)句中含有情態(tài)動詞時,句子結(jié)構(gòu)為 can / must / have to…be done make shoes in that factory. 主語 +及物動詞 +賓語 Shoes are made (by them) in that factory. 一般現(xiàn)在時: S(主語) +am/is /are +過去分詞 He rides the motorbike to his factory every day. The motorbike is ridden to his factory every day. We call the snowman Mr Strong. The snowman is called Mr Strong. We usually hear him play in the next room. He is usually heard to play in the next room. 2. They bought ten puters last term. Ten puters were bought (by them) last term. 一般過去時: S+was/were +過去分詞 He bought his friend some fruits yesterday. His friend was bought some fruits yesterday. Some fruits were bought for his friend yesterday. 4. Aby can take good care of Tina . Tina can be taken good care of by Aby. 情態(tài)動詞: S+ can/may/must/should + be+過去分詞 He can carry the basket easily. The basket can be easily carried by him. They can sing some beautiful songs. Some beautiful song