【正文】 ＝ It’s easy to answer the question. 14)有些動(dòng)詞不定式總是用主動(dòng)形式表示被動(dòng)意義 ， 如blame, let, rent等 。 如： We always keep the classroom clean. →The classroom is always kept clean. She told us to follow her instructions. →We were told to follow her instructions. 注意：在 see, watch, hear, notice, listen to, look at, make, feel等動(dòng)詞后作賓語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞不定式都不帶 to， 但改成被動(dòng)語(yǔ)態(tài)后都帶 to， 這時(shí)不定式為主語(yǔ)補(bǔ)足語(yǔ) ， 也就是說(shuō)不定式作主語(yǔ)補(bǔ)足語(yǔ)不存在省略 to 的問(wèn)題 。 These cars were made in China. 15, 000 cars will be produced each year in the new factory. We clean the classroom every day. 主語(yǔ) 謂語(yǔ) 賓語(yǔ) → The classroom is cleaned (by us) every day. 主語(yǔ) 謂語(yǔ) 賓語(yǔ) 1)把主動(dòng)語(yǔ)態(tài)的賓語(yǔ)變成被動(dòng)語(yǔ)態(tài)的主語(yǔ) 。 2)把主動(dòng)語(yǔ)態(tài)的謂語(yǔ)變成被動(dòng)語(yǔ)態(tài)的 be + 過(guò)去分詞 ，時(shí)態(tài)要與原句保持一致 。 We often hear him play the guitar. →He is often heard to play the guitar. 注意：帶有復(fù)合賓語(yǔ)的句子 ， 如果賓語(yǔ)補(bǔ)足語(yǔ)是名詞 ，變被動(dòng)句時(shí) ， 應(yīng)將賓語(yǔ)變?yōu)橹髡Z(yǔ) ， 不要誤把賓語(yǔ)補(bǔ)足語(yǔ)的名詞作主語(yǔ) 。 如 (1) The question is easy _________. A. to answer B. to be answered C. to be answering D. to have answered (2) That book is difficult _______. A. to be understand B. to be understanding C. to have been understood D. to understand 15)以 able或 ible結(jié)尾的形容詞可表示被動(dòng)含義 ， 例如： These tickets are available for one month. It’s a credible explanation. The fish was hardly eatable. 16)有些介詞短語(yǔ)用作表語(yǔ)或定語(yǔ)時(shí) ， 可以表示被動(dòng)含義 ， 例如： The thieves is under arrest. Apples are on sale. The phenomenon under studying is very interesting. 17)在某些名詞詞組中 ， 表示動(dòng)作的名詞無(wú)疑具有動(dòng)作的含義 ， 往往可以表現(xiàn)被動(dòng)含義 ， 而這種被動(dòng)與英語(yǔ)的被動(dòng)結(jié)構(gòu)無(wú)任何語(yǔ)法上的聯(lián)系 ， 例如： (1) After his _____ from prison, he returned home. A. release B. released C. releasing D. to release (2) His family lives on government _____ for three years. A. aiding B. to aid C. aided D. aid 18)被動(dòng)結(jié)構(gòu)和帶表語(yǔ)的結(jié)構(gòu) ， be＋過(guò)去分詞不一定都是被動(dòng)語(yǔ)態(tài)結(jié)構(gòu) ， 有時(shí)是系表結(jié)構(gòu) ， 區(qū)別是： (1)被動(dòng)語(yǔ)態(tài)中的過(guò)去分詞是動(dòng)詞 ， 表動(dòng)作；系表結(jié)構(gòu)中的過(guò)去分詞相當(dāng)于形容詞 ， 表狀態(tài) 。 When we got to the top of the mountain, the sun had already risen. 誤： The sun had already been risen. After the earthquake, few houses remained. 誤： After the earthquake, few houses were remained. 第五 ， 賓語(yǔ)是反身代詞 ， 相互代詞 ， 同源賓語(yǔ) ， 不定式 ，ving形式及抽象名詞等 ， 不能變?yōu)楸粍?dòng)句子的主語(yǔ) ， 如： I taught myself English. 誤： Myself was taught English. We love each other. 誤：