人教版高中英语必修2 Unit4 Grammar 精品课件

1、配人教版英语必修配人教版英语必修2 Unit4 Grammar 配人教版英语必修配人教版英语必修2 .观察下面的句子1Were being killed for the wool beneath our stomachs.2Our fur is being used to make sweaters for people like you.3So good things are being done here to save local wildlife.现在进行时的被动语态现在进行时的被动语态 配人教版英语必修配人教版英语必修2 以上句子都为_。其基本结构为：_。表示“某人或某事正在被”，强

2、调主语是动作的承受者，即主谓之间为被动关系。答案：现在进行时的被动语态；is/am/are/being done配人教版英语必修配人教版英语必修2 【归纳拓展】现在进行时被动语态的否定形式：1be(am/is/are)notbeingdoneOak trees are not being cut down these days.这些天没有人砍伐橡树。2现在进行时被动语态的疑问形式：be(am，is，are)主语beingdoneIs a new lake being built in the park?公园里正在建造一个新湖吗？配人教版英语必修配人教版英语必修2 3现在进行时被动语态的特殊疑问

3、句形式：疑问词(作主语)is beingdone疑问词(作定语)名词is/are beingdone疑问词is(are)主语beingdoneHow many buildings are being built in the town?城镇里有多少大楼正在建设？配人教版英语必修配人教版英语必修2 .用法1表示说话瞬间正在进行的动作。My bike is being repaired now.我的自行车正在被修理。2表示现阶段正在进行的动作。A new teaching building is being built in our school.在我们学校一座新教学楼正在被建造。配人教版英语必修

4、配人教版英语必修2 3表示一种习惯的被动行为，常带有赞扬、羡慕、讨厌等感情色彩。“Why are you always being punished by your teacher？”Mother asked.母亲问道：“你为什么总是被老师惩罚？”4表示按计划、安排，主语将要承受某个动作(少数及物动词)。An English evening is being held tonight.今晚将要举行英语晚会。配人教版英语必修配人教版英语必修2 【归纳拓展】各种时态的被动语态语态有两种：主动语态和被动语态。主语是动作的发出者为主动语态；主语是动作的承受者为被动语态。被动语态由助动词be过去分词构成

5、。配人教版英语必修配人教版英语必修2 时态名称主动语态形式被动语态形式例句一般现在时do/doesam/is/aredoneThe college entrance examination is given every year.一般过去时didwas/weredoneThe college entrance examination was given last month.一般将来时will do will bedoneThe college entrance examination will be given next month.现在进行时am/is/aredoingam/is/are

6、beingdoneThe college entrance examination is being given now.配人教版英语必修配人教版英语必修2 时态名称主动语态形式被动语态形式例句过去进行时was/weredoingwas/were beingdoneThe college entrance examination was being given when the flood happened.现在完成时has/havedonehas/havebeendoneThe college entrance examination has been given every year si

7、nce 1978.过去完成时haddonehad beendoneThe college entrance examination had been given before the Cultural Revolution broke out.将来完成时will havedonewill have beendoneShe will have been sent home by that time.过去将来完成时wouldhavedonewould have beendoneShe would have been sent home by that time.配人教版英语必修配人教版英语必修2

8、.句型转换1According to the report, the new railway station in Qingdao looks very western._ _ _ _ the new railway station in Qingdao looks very western.2The city officials have made a plan to turn Beijing into a green city.A plan _ _ _ to turn Beijing into a green city.配人教版英语必修配人教版英语必修2 3The volunteers a

9、re collecting money to help set up a library.Money _ _ _ by the volunteers to help set up a library.4The Peoples Republic of China came into being on October 1, 1949.The Peoples Republic of China _ _on October 1, 1949.配人教版英语必修配人教版英语必修2 5By 2015, China will have built more miles of railway.By 2015, m

10、ore miles of railway _ _ _ _ by China.【答案】1It is reported that2.has been made3.is being collected4.was founded5.will have been built配人教版英语必修配人教版英语必修2 .单句改错1Someone has been heard enter the next room._2This book is well worth being read._3It has decided that they can take whatever they like. _4Pay at

11、tention to make notes when attending lectures. _5The sick child must be taken good care._配人教版英语必修配人教版英语必修2 【答案】1enter 前加to 2.being read 改为reading3decided 前面加 been4.make 改为making5care 后加 of配人教版英语必修配人教版英语必修2 .句型转换1We are discussing whether we will go to the zoo next week.(变为被动语态)_2The children are pla

12、nting trees near the river.(变为被动语态)_配人教版英语必修配人教版英语必修2 3A bridge is being constructed now.(变为同义句)_4When did you buy this book？(变为被动语态)_5A heavy basket full of apples is being carried by Tom.(变为主动语态)_配人教版英语必修配人教版英语必修2 【答案】1Whether we will go to the zoo next week is being discussed (by us)/It is being

13、discussed whether we will go to the zoo next week.2Trees are being planted near the river by the children.3A bridge is under construction now.4When was this book bought (by you)?5Tom is carrying a heavy basket full of apples.配人教版英语必修配人教版英语必修2 .用括号内所给单词的正确形式填空。Scientists say that the total number of

14、species 1._(loss) each year may reach 40,000. If nothing 2._ (do), we may find ourselves alone on this planet in future.配人教版英语必修配人教版英语必修2 The Malayan sun bear (马来熊) is among the animals that need our help. They live in forests that 3._ (destroy) by people who are cutting down the trees and 4._ (use)

15、 the land for farming. Their cutting down the trees to build roads also makes 5._ easier for 6._ (hunt) to find the bears. 7._ the trees, the bears cant find enough food, so they have to 8._ (look) for food on farms, and many of them 9._ (shoot)or 10._(trap) by farmers.配人教版英语必修配人教版英语必修2 Rhinos have been on the earth for a long time.There used to be many different species of rhinos, 11._ (include) one that was six meters high and nine meters long! Today there are only five species 12._ (leave)，and they are all 13._ (endanger). Thirty years ago, there were about 65,000 black rhinos in Africa