初中被动语态讲解.ppt-

1、被动语态,The Passive Voice,Cindy,英语动词有两种语态： 主动语态 (the Active Voice) 被动语态 (the Passive Voice),A. 主动语态表示主语是动作的执行者。,B. 被动语态表示主语是动作的承受者。,We planted the tree.,The tree was planted by us.,注：后面能接宾语的动词才有被动语态,We speak English.,主语,谓语,宾语,English is spoken by us.,主语,谓语,宾语,主动语态,被动语态,They cleaned the classroom yester

2、day. 昨天他们打扫了教室。 The classroom was cleaned by them yesterday. 昨天教室被他们打扫了。,1. 一般现在时：is / am / are + 及物动词的过去分词 2. 一般过去时：was / were + 及物动词的过去分词 3. 现在/过去完成时：has / have/had + been + 及物动词的过去分词 4. 一般将来时：will+ be + 及物动词的过去分词 5. 含有情态动词：情态动词+ be + 及物动词的过去分词 6. 现在进行时：am / is / are + being + 及物动词的过去分词,歌诀：被动语态be字

3、变，过去分词跟后面,找一找规律,(一)被动语态基本用法: 当句子的主语是动作的执行者时，谓语的形式是主动语态。当句子的主语是动作的承受者时，谓语要用被动语态。被动语态由助动词be+过去分词构成，时态通过be表现出来。,be + 过去分词,(二)被动语态的基本结构:,有各种时态的变化,1.规则动词的过去分词：,1)一般情况在动词原形后加-ed,watch-watched,2)以不发音e结尾的加-d,practice-practiced,3)以辅音加y结尾的，去y变i加-ed,study-studied,4)以重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加-ed,stop-stopp

4、ed,2.不规则动词的过去分词：,am,is,are was were,been,have,has,had,do,done,write,written,go,gone,动词过去分词的变化:,1. Now English _ by more and more people all over the word. A. speaks B. is spoken C. was spoken,一般现在时的被动语态： 主语+am / is / are + PP,2. The lost boy _ at the street corner last night. A. was found B. is foun

5、d C. was looked for,一般过去时的被动语态： 主语+was / were + PP,3. More man-made satellites _ in the future. A. will send up B. will be sent up C. are sent up,一般将来时的被动语态： 主语+will + be + PP 主语+be going to + be + PP,4. Three bridges _ since last year. A. have built B. were built C. have been built,现在完成时的被动语态： 主语+h

6、ave/ has+ been + PP,5. Flowers _ every day. A. has been watered B. should be watered C. should water,含有情态动词的被动语态： 情态动词 + be + PP,(四)主动语态变被动语态: (1)把原来的宾语提到前面作被动语态的主语; (2)把谓语动词变成被动结构(be过去分词) (根据被动语态句子里的主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式)。 (3)把主动语态中的主语放在介词by之后作宾语，将主格改为宾格。如： They make the bikes in the fac

7、tory. The bikes,in the factory.,are made,them,by,主变被步骤:,1.找宾语: 即动作的承受者(改为主语),He washed his car yesterday.,His car,3. 判断新主语的单复数:确定be动词的单复数.,be,4. 判断动词的时态 : 即be动词的时态.,2. 修改谓语的语态:即be+原V.过去分词,washed,5. 修改原句的主语 :即by +主语(变宾格).,(by him),yesterday.,is was,was,1.Tom broke the window. The window,2.She broke t

8、he windows. The windows,3.He cleans the classroom everyday. The classroom,was broken,by Tom.,were broken,by her.,is cleaned,by him,be动词的单复数变化:,everyday.,1. They will finish the work in ten days.,The work in ten days.,will be finished,(by them),2.They are going to have a show tomorrow.,A show,is goin

9、g to be had,(by them),tomorrow.,1. Amy can take good care of the cat ,The cat,can be taken good care of,by Amy.,2. They should sing some beautiful songs.,Some beautiful songs,by them.,should be sung,(四)被动语态的特殊情况:,1.在主动语态中,make, let, hear, see, watch, notice等词,其后跟省略to的动词不定式(动词原形),在变为被动语态时,必须还原动词不定式符号

10、to.如: 1) We heard him sing this song in the room. He was heard to sing this song in the room. 2) The boss made him work 14 hours a day. He was made to work 14 hours a day. 3) I see him walk to school. He is seen to walk to school.,A traffic accident _(happen) just now.,happened,2. 连系动词（Link.v.) 如：be

11、, look, seem, feel, sound, smell, taste, get, turn, become,Peking Opera _ (sound) beautiful.,sounds,3. 当此动词表示事物的自然属性的时候:,The pen _ (write) very fast.,writes,This kind of sweater _ (sell) well.,sells,1. 不及物动词（vi.) 如:happen, take place, appear, disappear, ,不用被动语态的动词：,(表示主语的自然属性特征) + 副词 (well/ badly/ea

12、sily/smoothly),常见动词：,read, write, sell, wash, clean, wear, lock, open, cook, shut, dry, eat, drink, ,The books _ well A. were sold B. sell C. have sold D. are being sold This kind of cloth _ easily A. has washed B. was washed C. washes D. is washed,1. Many accidents_ by careless drivers last year. A

13、. are caused B. were caused C. have caused D. will cause 2. An official _ by some reporters on food problems in Shanghai yesterday. A. is interviewing B. is interviewed C. was interviewing D. was interviewed 3. Today a lot of information can _ online. A. receive B. be received C. is received D. rece

14、iving 4. Im glad to find that many trees_ in our city last year. A. plant B. planted C. were planted D. are planted,5. Driving after drinking wine in China. A. allows B. doesnt allow C. is allowed D. isnt allowed 6. Dont worry. Your package here until you come back, so enjoy shopping here. A. will k

15、eep B. has kept C. will be kept D. has been kept 7. Its true that Shakespeares play _ by so many people every year. A. see B. will see C. are seeing D. are seen,Correcting mistake,Correct the mistake(s) in each sentence if any: 1)Two boys hurt while playing a ball 2)The singer lived in London until

16、he was sending to university 3)How long do you think the meeting will be lasted?,4)Class is begun at 7:30 every day 5)His plan is sounded good,1.树要在春天种; 2.树坑要挖得够大,但不要太深; 3.把树放进坑里,扶直; 4.把泥推回坑里,用脚踩实; 5.在旁边插一根坚实的长棍子,并且保证棍子插直了; 6.用绳子（rope）把棍子和树绑起来 7.浇好水.,根据提示写一篇以How to Plant a Tree?为题目的短文，要求内容齐全，上下文连贯。尽

17、量使用被动语态，80词左右。,Writing,1.树要在春天种; 2.树坑要挖得够大,但不要太深; 3.把树放进坑里, 扶直; 4.把泥推回坑里,用脚踩实; 5.在旁边插一根坚实的长棍子,并且保证棍子插直了; 6.用绳子（rope）把棍子和树绑起来 7.浇好水.,be planted,be dug,big enough,too deep,put into,be kept straight,push back to,push hard with ,knock into ,be kept straight,be tied to with,be watered well,Trees must be planted in Spring. The hole must be dug large enough but not too deep. Put the tree into the hol