Unit 6 When was it invented (Grammar Focus-4c)一般过去时的被动语态课件2022-2023学年人教版九年级英语全册 （共13张PPT）

1、Grammar Focus-4cUnit 6 When was it invented?Grammar FocusWhen was the zipper invented?It was invented in 1893.Who was it invented by?It was invented by Whitcomb Judson.When was tea brought to Korea?It was brought to Korea during the 6th and 7th centuries.What is the hot ice-cream scoop used for?Its

2、used for serving really cold ice-cream.Active Voice : Alexander Graham Bell invented the telephone in 1876.Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.语法重点：被动语态 (Passive Voice)be+动词过去分词am / are / is +动词的过去分词was / were +动词的过去分词 一般现在时的被动语态:一般过去时的被动语态:肯定句否定句疑问句结构: 主语+wa

3、s/were+及物动词的过去分词（ + by）主语+was/were + not+及物动词的过去分词（+ by) Was/Were+主语+及物动词的过去分词（+by )?特殊疑问词+was/were+主语+及物动词的过去分词（+by.)?例句翻译与句型转变：电脑是在1971年被John von Neumann发明出来的。电话是在1885年发明出来的。茶是被意外发明出来的。 We bought some books. 主动句与被动句之间的转换Some books were bought (by us ). 主语 谓语动词主动语态的过去式 宾语主语 谓语动词被动语态的过去分词 介词+ 宾语Prac

4、tice: Many people speak English. (主动语态)The boy broke the window yesterday. (主动语态)I bought a book yesterday.(主动语态)Bell invented the telephone.(主动语态)The students clean the classroom every day.(主动语态)主动句变为被动句4步骤：1. 主句宾变被句主2. 主句谓语变被动(be+过去分词) 【人称和数随主语的变化，动词的时态不变】3. 主句主变by加宾4. 其它成分都不变（定语、状语）动词原形过去分词bringb

5、uildbuycatchchoosecostcut动词原形过去分词dodrawdreamdrinkdriveeatfallFill in the chartbroughtbuiltboughtcaughtchosencostcutdonedrawndreamt/dreameddrunkdriveneatenfallen动词原形过去分词findforgetgivegogrowhavehear动词原形过去分词hidehurtkeepknowleavelightmakefoundforgottengivengonegrownhadheardhiddenhurtkeptknownleftlit/lig

6、htedmade动词原形过去分词payputreadsayseesendset动词原形过去分词showtaketeachtellthinkwearwritepaidputreadsaidseensentsetshowntakentaughttoldthoughtwornwritten4a Rewrite the sentences using the passive voice.They sold the fridge at a low price._2. Somebody stole my camera from my hotel room._3. Where did you take th

7、ese photos?_4. Our parents advised us not to go out alone._5. Different writers translated the book into different languages._ The fridge was sold at a low price.My camera was stolen from my hotel room (by somebody).Where were these photos taken?We were advised not to go out alone by our parents.The

8、 book was translated into different languages by different writers.4b Complete the sentences with the correct forms of the verbs in the box.eat lock like ring invite break tell bringYou _ to the party last night, werent you? Why didnt you go?2. The earthquake happened all of a sudden, but luckily th

9、e villagers _ to a safe place.3. The door _ when we arrived, so we _ the bell.4. The students _ not to eat or drink in class. But Ruby _ the rule when she started eating a biscuit in science class.5. The cookies _ by the hungry kids in less than 20 minutes, and they really _ them.were invitedwere br

10、oughtwas lockedrangwere toldbrokewere eatenliked4c Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.The telephone _(invent) by Alexander Graham Bell. He _ (born) in 1847. Mr. Bell _ (work) on the invention of the telephone with Thomas Wa

11、tson. In 1875, Mr. Bell _ (learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone _ (invent) in 1876. The first sentence that _ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone _ (use) around the wor

12、ld.was inventedwas bornworkedlearnedwas inventedwas saidis used. 单项选择。 1. Today Chinese is becoming more and more popular. It _ in many schools around the world. A. teaches B. is teaching C. has taught D. is taught2. We _ to close the windows before we left the lab. A. tell B. told C. are told D. we

13、re told3. Did you hear that water in Tai Lake smelt terrible? Yes. In fact, it _. Thats all because of the people and the factories around. A. polluted B. was polluted C. has polluted D. will pollute DExercisesDB. 用所给动词的适当形式填空。1. The pizza was _ (make) by me. Would you like to have some?2. The Great

14、 Wall is _ (know) all over the world.3. This story was _ (tell) by my grandmother last night.4. Was a new science museum _(build) in your hometown last year?5. No student is _(see) in the playground. 6.Historyis_bythepeople.(make)7.Heisoften_todotheworkbythe teacher.(ask)8.Thebook_ byhimlastyear. (w

15、rite)9.Theradio_lastweek. (repair)made known told built seen madeaskedwas writtenwas repaired. 用所给动词的适当形式填空。Roses have a long history. It 1. _ ( say) that they have been on the earth for at least 35 million years.Roses 2. _ (use) to make perfumes (香水) because of their nice smell. And they 3. _ (rega

16、rd) as a symbol of love in many countries. There are lots of stories of roses. Heres the most famous one.Roses 4. _ (create) by Aphrodite, Goddess of Love, according to the ancient Greek mythology (神话). There 5. _ (be) only white roses in the world. But did you know how red roses came into being? Let me tell you. One day, Aphrodites lover Adonis 6. _ (hurt) by a wild pig. Hearing the bad news,Aphrodite 7. _ (hurry) to save