人教版九年级上册 初三 英语Unit6SectionA4a-4c课件

1、Unit 6When was it invented? Section A 4a-4c被动语态 (Passive Voice)结构: be + V-p.p.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: Many people speak English. (主动语态)English is spoken by many people.The naughty boy broke the window yesterday. (主动语态)The window was broken ( by the naughty bo

2、y) yesterday. 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+ 宾语主动句变为被动句所遵循的4个步骤：1. 把原主动句中的宾语变为被动句的主语。2. 把动词变为被动形式即be+过去分词，并注意其人称和数随主语的变化，而动词的时态则保持不变。3. 原主动句的主语如需要则放在by后面以它的宾格形式出现（注代词的宾格），如不需要则可省略。4. 其它的成分（定语、状语）不变。过去式被动语态的几种句型 肯定句 主语 + be +

3、过去分词 + (by)A sweet song was sung by her on the stage.2 否定句 主语 + be + not +过去分词 + (by)一般疑问句 Be + 主语 +过去分词 + (by)? A sweet song wasnt sung by her on the stage.Was a sweet song sung by her on the stage? 特殊疑问句 疑问词 + be + 主语 +过去分词 + (by)?Where was a sweet song sung by her? Grammar FocusWhen was the zippe

4、r 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 used for serving really cold ice-cream.Active Voice : Alexander Graham Bell

5、 invented the telephone in 1876.Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.一般过去时的被动语态的句式结构一般过去时的被动语态肯定句主语+was/were+及物动词的过去分词（ + by）否定句主语+was/were + not+及物动词的过去分词（+ by) 疑问句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.)?2. 一般过去时的被动语态的基本用法用 法示 例表示过去某一具体

6、时间发生的动作，且句子的主语是谓语动词动作的承受者The house was built in 1990.这所房子建于1990年。讲述发生在过去的动作，且不知道动作的执行者He was honored with the name “ Father of Hybrid Rice”.他被授予“杂交水稻之父”的称号。含有双宾语的主动句变为被动语态时，通常把指 “人”的间接宾语变为主语，而指“物”的直接宾语则不变。He gave me a book yesterday. I was given a book (by him) yesterday.如果要把指“物”的直接宾语变为主语，则在间接宾 语前加t

7、o或for。3. 含双宾语和复合宾语的主动句变为被动语态的方法I brought him some food. Some food was brought to him (by me).含有复合宾语的主动句变为被动语态时，要将其中的 宾语变成主语，宾语补足语不变。Jim asked Tom to go for a walk. Tom was asked (by Jim) to go for a walk. 如果宾语补足语是不带to的动词不定式，主动语态变成被动语态时要加上不定式符号 to。We often heard Kate sing in the room. Kate was often

8、heard to sing in the room (by us).4a 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 these photos?_ The fridge was sold at a low price.My camera was stolen from my hotel room (by somebody).Where

9、were these photos taken?4. Our parents advised us not to go out alone._5. Different writers translated the book into different languages._We were advised not to go out alone by our parents.The book was translated into different languages by different writers.4b Complete the sentences with the correc

10、t 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 the villagers _ to a safe place.were invitedwere brought3. The door _ when we arrived, so we _ the bell.4. The

11、 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.was lockedrangwere toldbrokewere eatenliked1. all of a sudden: 突然；猛地可写作of a sudden, on a/the sudden 或al

12、l on a sudden。例句：突然，灯都灭了。 All of a sudden, the lights went out. 那个男孩突然开始哭起来。 The boy began crying all of a sudden. Language points2. luckily作副词，意为“幸运地”，也可换成to my luck或 luckily for me，其后通常用逗号与句子其他成分隔开。例句：Luckily, she was at home when I called. 幸好当我打电话时她在家。4c Decide whether active or passive forms sho

13、uld 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 Watson. In 1875, Mr. Bell _ (learn) how to send musical notes through was inventedwas bornworke

14、dlearnedan 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 world.was inventedwas saidis usedWhen was the car invented?It w

15、as invented in 1885.Who were they invented by?They were invented by Julie Thompson.What are they used for?They are used for seeing in the dark.Read the sentences and pay attention to the underlined parts.The cake looks nice. Who made it?It was made by my aunt.How delicious the soup is! Who cooked it

16、?It was cooked by Mom.What a beautiful card it is! Who made it?It was made by . 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 taughtDExercises2. We _ to close the windows before we left the lab. A. tell

17、B. told C. are told D. were 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 DB. 用所给动词的适当形式填空。1. The pizza was _ (make) by me. Would you like to have so

18、me?2. The Great 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. made known told built seen 6.Historyis_bythepeople.(make)7.Heisoften_todotheworkbyth

19、e teacher.(ask)8.Thebook_ byhimlastyear. (write)9.Theradio_lastweek. (repair)madeaskedwas writtenwas repaired . 将下列句子变为被动语态。1. My parents bought me a computer last week. 2. We often hear the girl sing happily in her room. The girl is often heard to sing happily (by us) in her room. A computer was bo

20、ught for me by my parents last week. 3. He wrote an article last week.An article was written by him last week. 4. He saved a lot of money this summer. 5. We spend large sums of money each year in painting the steelwork of bridges.A lot of money was saved this summer.Large sums of money is spent each year in painting the steelwork of bridges.6. He was seen to read a book in his room. (用I作主语，