高一英語必修2第四單元語法

1、2021/8/141 Unit 4 -Wildlife ProtectionPeriod 4: Grammar Present Progressive Passive Voice現在進行時的被動語態(tài)現在進行時的被動語態(tài)2021/8/142The Tense of the The Passive Voice1. Present passive voice: am/is/are + p.p. The Olympic Games are usually held in big cities.2. Past passive voice: was/were+ p.p. The last Olympic

2、Games were held in Athens.2021/8/1433. Future passive voice: will/shall+ be+ p.p. The 2008 Olympic Games will be held in Beijing. am/is/are+ going to be+ p.p. The 29th Olympic Games are going to be held in Beijing in 2008.2021/8/144 am/is/are+ to be+ p.p. The 29th Olympic Games are to be held in Bei

3、jing in 2008.4. Perfect passive voice: have /has+ been + p.p. The Olympic Games have been held 28 times.2021/8/1455. Present continuous passive voice: am/is/are+ being+ p.p. -Why it is so noisy out there? -Oh, its because the road is being repaired. 2021/8/146Complete the sentences according to the

4、text.1. We _for the wool beneath our stomachs. (Line 9)2. Our fur _to make sweaters for people like you. (L10)3. I wonder what _to help you. (L12)4. So good things _here to save local wildlife. (L25)are being killedis being usedis being doneare being done1. Discover what structure is used1. Discover

5、 what structure is usedwhat structure is usedwhat structure is used2021/8/147Summary: 現在進行時的現在進行時的被動語態(tài)被動語態(tài)e.g.1. A new library is being built now.2. Some animals are not being protected well enough.3. Is the bridge being repaired now? 1. 1. 構成：構成：am/is/aream/is/are (not)(not) + + beingbeing + + V-V-

6、過去分詞過去分詞2. 2. 意義：意義：正在被做正在被做. .定義：定義：現在進行時被動語態(tài)表示說話時或現在進行時被動語態(tài)表示說話時或現階段某個被動的動作正在進行。現階段某個被動的動作正在進行。2021/8/148現在進行時的被動語態(tài)基本用法：現在進行時的被動語態(tài)基本用法：表示現在正在進行的被動動作。表示現在正在進行的被動動作。eg:Mary is being interviewed now.2021/8/149Some cultural relics are being appreciated by experts.2021/8/1410He _(bite) by a mosquito.is

7、 being bitten2021/8/14112. 表現階段正在進行的被動動作。表現階段正在進行的被動動作。 The effect of the new drug is being studied at present by scientist.2021/8/1412 The habitat of the panda is being protected by the local people . 2021/8/1413 The habitat of the panda is being protected by the local people . 2021/8/1414 3. 少數及物動

8、詞的進行時表示按計劃、少數及物動詞的進行時表示按計劃、安排將要承受某個動作。安排將要承受某個動作。 An party is being held tonight. 今晚將要舉辦一場晚會。今晚將要舉辦一場晚會。A folk song is being sung next. 下面將唱一首民歌。下面將唱一首民歌。2021/8/14154. be + under / in + V.可代替進行時被動語態(tài)可代替進行時被動語態(tài)e.g. The bridge is under repair. The bridge is being repaired. e.g. The telephone is in use

9、(=is being used) now. 2021/8/1416如果去掉如果去掉being,就成為一般現在時被動語態(tài)或系表就成為一般現在時被動語態(tài)或系表結構。結構。試比較下列句子試比較下列句子: Look! The children are being taken care of by their aunt. 瞧瞧!孩子們現在正由姑姑照看著。孩子們現在正由姑姑照看著。(指現在的情況指現在的情況)Children are taken good care of at school. 孩子們在學校被照看得很好。孩子們在學校被照看得很好。(指通常的情況指通常的情況)2021/8/1417e.g:1.

10、 They are building a new library now. 被動被動A new library is being built now.Many animals are not being protected well enough.Is the bridge being repaired now?2. Many animals are being protected well enough. 否定句否定句3. The bridge is being repaired now. 疑問句疑問句2021/8/1418A huge Christmas tree _(decorate)i

11、s being decorated2021/8/1419Christmas presents _(send) to children are being sent2021/8/1420Many Christmas presents _ (buy) by my parents.are being bought2021/8/1421A wonderful Christmas feast_ (enjoy) by my families. is being enjoyed2021/8/1422典型例題典型例題 A new cinema_ here. They hope to finish it nex

12、t month. （2001 北京春季卷）北京春季卷） A. will be built B. is built C. has been built D. is being built2. I have to go to work by taxi because my car _ at the garage. (2006重慶卷重慶卷) A. will be repaired B. is repaired C. is being repaired D. has been repaired 2021/8/14233. -Have you moved into the new house? -Not yet. The rooms _. A. are being painting B. are painting C. are painted D. are being painted2021/8/14244Rainforests _ and burned at such a speed that they will disappear from the earth in the near future. A. cut B. are cut C. a