人教版高中英語必修二《Wildlife Protection》Discovering Useful Structures PPT課件，共30頁。

Grammar

Underline the present continuous passive voice in the sentences and discuss its function. 

African elephants are being hunted. 

What is being done to help them? 

What measures are being taken to help them? 

Find more sentences with the same verb form in this unit. 

They are being hunted，illegally，for their valuable fur. 

Much is being done to protect wildlife. 

現(xiàn)在進(jìn)行時(shí)的被動(dòng)語態(tài)

1 構(gòu)成

肯定式：主語+am/is /are+being done. 

否定式：主語+am/is /are not+being done. 

一般疑問式：Am /Is /Are+ 主語+being done? 

特殊疑問式：疑問詞 +am/is/are+（主語+）being done? 

At present，lots of food，water，tents and medicine are being sent to the disaster-hit area. 

目前，大量的食物、水、帳篷和藥品正被送往災(zāi)區(qū)。［詞匯復(fù)現(xiàn)］ 

What measures are being taken to protect the endangered animals? 

采取了什么措施來保護(hù)瀕危動(dòng)物？［詞匯復(fù)現(xiàn)］

2 用法

（1）表示說話時(shí)正在進(jìn)行的被動(dòng)動(dòng)作。

She is being examined by the doctor now. 她現(xiàn)在正在接受醫(yī)生的檢查。

（2）表示現(xiàn)階段正在進(jìn)行的被動(dòng)動(dòng)作，說話時(shí)不一定在進(jìn)行。

A new gallery is being built. 一個(gè)新的畫廊正在建造中。［詞匯復(fù)現(xiàn)］ 

（3）表示一種經(jīng)常性的被動(dòng)行為，常與 always，constantly，frequently 等表示頻度的副詞連用，帶有贊賞或厭惡等感情色彩。

The girl is always being praised by her teachers. 這個(gè)女孩總是受到老師的表揚(yáng)。

（4）表示按計(jì)劃或安排將要發(fā)生的被動(dòng)動(dòng)作（僅限于少數(shù)及物動(dòng)詞）。

Some classical music is being played by them next. 

下面將由他們演奏一些古典音樂。［詞匯復(fù)現(xiàn)］ 

3 注意事項(xiàng)

（1）一些表示狀態(tài)、心理活動(dòng)、擁有、存在等的動(dòng)詞，如 have，want， need，love，realize 等，一般不用于進(jìn)行時(shí)，因而也沒有進(jìn)行時(shí)的被動(dòng)語態(tài)，而常用一般現(xiàn)在時(shí)的被動(dòng)語態(tài)表示此刻或目前主語正承受謂語動(dòng)詞表示的動(dòng)作。

Mary，come here. You’re being wanted on the phone. （×） 

Mary，come here. You’re wanted on the phone. （√） 

瑪麗，過來，有你的電話。

（2）少數(shù)動(dòng)詞用于現(xiàn)在進(jìn)行時(shí)態(tài)，用主動(dòng)形式表示被動(dòng)含義，如 print，cook，fry，hang，build，make 等。

The meat is cooking. 肉正煮著。 

（3）“be + in /on /under + 名詞”常含被動(dòng)意義，可代替現(xiàn)在進(jìn)行時(shí)的被動(dòng)語態(tài)。

The problem is under discussion now. 

= The problem is being discussed now. 

現(xiàn)在這個(gè)問題正在討論中。

（4）因?yàn)楸粍?dòng)語態(tài)的基本結(jié)構(gòu)為 be done，不少學(xué)生誤將現(xiàn)在進(jìn)行時(shí) 的被動(dòng)語態(tài)結(jié)構(gòu)“am/is/are + being done”寫成一般現(xiàn)在時(shí)的被動(dòng)語態(tài)結(jié)構(gòu)“am/is/are + done”。

Look! The road is built.（×） 

Look! The road is being built.（√） 

瞧，這條道路正在建設(shè)中。

The dinner is prepared by Christina.（×） 

The dinner is being prepared by Christina.（√） 

晚宴正由克里斯蒂娜準(zhǔn)備著。

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