三年级英语Unit6SectionA-2.ppt

Unit 6When was it invented?When were the following things invented? Choose the right time.197619671876178618851727hot ice-cream scoopshoes with lightsshoes with special heelsWhat are these and what are they used for?changing the style of the shoesseeing in thedarkserving really cold ice-creamWhen 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 used for serving really cold ice-cream. Passive voice in the simple past tenseActive: Alexander Graham Bell invented the telephone in 1876.Passive: The telephone was invented (by Alexander Graham Bell) in 1876.Grammar Focus1.一般过去时的被动语态的句式结构一般过去时的被动语态的句式结构肯定句肯定句主语主语+was/were+was/were+及物动词的过去分词及物动词的过去分词（ + + byby）否定句否定句主语主语+ +was/were was/were + + not not+ +及物动词的过去分词及物动词的过去分词（+ + byby) ) 疑问句疑问句Was/Were+Was/Were+主语主语+ +及物动词的过去分词及物动词的过去分词（+by )?+by )?特殊疑问词特殊疑问词+was/were+was/were+主语主语+ +及物动词的过及物动词的过去分词去分词（ + by.)?+ by.)?2. 一般过去时的被动语态的基本用法一般过去时的被动语态的基本用法用法用法示例示例表示过去某一具体时间发表示过去某一具体时间发生的动作，且句子的主生的动作，且句子的主 语语是谓语动词动作的承受者是谓语动词动作的承受者The house was built in The house was built in 1990.1990.这所房子建于这所房子建于19901990年。年。讲述发生在过去的动作，讲述发生在过去的动作，且不知道动作的执行者且不知道动作的执行者 He was honored with the He was honored with the name “ Father of Hybrid name “ Father of Hybrid Rice”.Rice”. 他被授予他被授予“杂交水稻之父杂交水稻之父”的称号。的称号。含有双宾语的主动句变为被动语态时，通常含有双宾语的主动句变为被动语态时，通常把指把指 “人人”的间接宾语变为主语，而指的间接宾语变为主语，而指“物物”的直接宾语则不变的直接宾语则不变 He gave me a book yesterday. I was given a book (by him) yesterday3. 含双宾语和复合宾语的主动句变为被动语含双宾语和复合宾语的主动句变为被动语态的方法态的方法如果要把指如果要把指“物物”的直接宾语变为主语，则的直接宾语变为主语，则在在 间接宾语前加间接宾语前加to或或for 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如果宾语补足语是不带to的动词不定式，的动词不定式， 主动语态变成被动语态时要加上不定式符主动语态变成被动语态时要加上不定式符 号号 to We often heard Kate sing in the room. Kate was often heard to sing in the room (by us).4a Rewrite the sentences using the passive voice.1.They sold the fridge at a low price. The fridge was sold at a low price.2. Somebody stole my camera from my hotel room. My camera was stolen from my hotel room.3. Where did you take these photos? Where were these photos taken?4. Our parents advised us not to go out alone. We were advised not to go out alone by our parents.5. Different writers translated the book into different languages. The book was translated into different languages by different writers.4b Complete the sentences with the correct forms of the verbs in the box.1.You _ 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. eat lock like ring invite break tell bringwere invitedwere brought3. 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.was 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 Watson. In 1875, Mr. Bell_ (learn) how to send musical noteswas inventedwas bornworkedlearntthrough 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 world.was inventedwas saidis usedExplanation1.They sold the fridge at a low price. 他们以低价出售这台冰箱。他们以低价出售这台冰箱。 low形容词，意为形容词，意为“低的；矮的低的；矮的”， 常用短语常用短语 at a low price 意为意为“以低价以低价”。 She jumped over the low wall. 她跳过了那堵矮墙。她跳过了那堵矮墙。 This sweater is on sale at a low price 这件毛衣正以低价出售。这件毛衣正以低价出售。 2. Somebody stole my camera from my hotel room. 有人从我的宾馆房间里偷走了照相机。有人从我的宾馆房间里偷走了照相机。 somebody不定代词，意为不定代词，意为“某人；重要人某人；重要人 物物”， 用于肯定句中。作主语时谓语动词用单数形用于肯定句中。作主语时谓语动词用单数形 式，其同义词为式，其同义词为someone。 There is somebody waiting to see you. 有人在等着见你。有人在等着见你。 anybody不定代词，意为不定代词，意为“有人有人”，常用于否定句，常用于否定句 和疑问句中；用于肯定句中意为和疑问句中；用于肯定句中意为“任何人任何人”。 Is there anybody who can help me? 有人能帮我吗？有人能帮我吗？ Anybody can do the work well. 任何人都能把这项工作做好。任何人都能把这项工作做好。3. The earthquake happened all of a sudden, but luckily the villagers were brought to a safe place. 突然发生了地震，但幸运的是突然发生了地震，但幸运的是,村民们被带到村民们被带到 了一个安全的地方。了一个安全的地方。(1) sudden(happening quickly and unexpectedly) 形容词，意为形容词，意为“突然突然(的的)”。 There was a sudden change in the weather. 天气突然变了。天气突然变了。(2) all of a sudden意为意为“突然；猛地突然；猛地”，相当于副词相当于副词 suddenly。 He came to us all of a sudden.=He suddenly came to us. 他突然朝我们走来。他突然朝我们走来。ExercisesExercises1.(2013.陕西陕西)The mobile phone has influenced peoples life a lot since it _. A. invents B. invented C. is invented D. was invented2. (2013.上海上海) _ is waiting for you at the gate. He wants to say thanks to you. A. Somebody B. Anybody C. Everybody D. NobodyDI. I. 单项选择。单项选择。A3. At the end of the meeting Miss Green _ two minutes to decide whether she should join the project or not. A. gave B. give C. was given D. was giving4. The mixture smelt terrible but Tom _ taste it. A. was made toB. was made C. made to D. madeCA5.Did you go to Jacks birthday party? No, I_. A. am not invited B. wasnt invited C. havent invited D. didnt invite6.The book Business the Speed of Thought _ in 1999. A. writes B. is written C. wrote D. was writtenBD7. _a new library _ in your school last year? A. Is; built B. Was; built C. Does; built D. Did; built8. The earth is our home. It _well. A. must be protected B. should protect C. need protect D. should protected.BA1.The young man saved the lives of the children. The lives of the children were saved by the young man.2. The villagers didnt find the lost boy at last. The lost boy wasnt found by the villagers at last.II. II. 将下列句子改为被动语态。将下列句子改为被动语态。3. Did you clean up your room last night? Was your room cleaned up last night?4. My mother bought me a new CD player. I was bought a new CD player by my mother. / A new CD player was bought for me by my mother.5. We saw Jim come in. Jim was seen to come in.Homework Master what you have learned In this lesson. Learn to talk about The history of inventions with thePassive voice in the simple past tense .