人教版九年级上册英语《Unit 6 Section A 第3课时》课件

1、Unit 6 When was it invented?Grammar Focus4c情 景 导 入情 景 导 入A: When was invented?B: It was invented .1971188518761927Can you retell the history of tea?One day Shen Nong was boiling drinking water over an open fire. Some leaves from a tea plant fell into the water and remained there for some time 单 词 展

2、示单 词 展 示n. 冰箱冰箱fridgen. 曲奇饼曲奇饼cookien. 地震地震earthquake生 成 新 知生 成 新 知Grammar FocusNoImageWhen was the zipper invented?It was invented in 1893.Who was it invented by?It was invented by Whitcomb Judson.NoImageWhen was tea brought to Korea?It was brought to Korea during the 6th and 7th centuries.NoImageN

3、oImage Active Voice: Alexander Graham Bell invented the telephone in 1876.Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.1.1.一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+及物动词的过去分词及物动词的过去分词（ + by）否定句否定句主语主语+was/were + not+及物动词的过去分词及物动词的过去分词（+ by) 疑问句疑问句Was/Were+主语主语

4、+及物动词的过去分词及物动词的过去分词（+by )?特殊疑问词特殊疑问词+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.)?一般过去时的被动语态一般过去时的被动语态2. 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用 法法示示 例例表示过去某一具体时间发生表示过去某一具体时间发生的动作，且句子的主语是谓的动作，且句子的主语是谓语动词动作的承受者语动词动作的承受者The house was built in 1990.这所房子建于这所房子建于1990年。年。讲述发生在过去的动作，且讲述发生在过去的动作，且不知道动作的执行者不知道动作的执行者H

5、e was honored with the name “ Father of Hybrid 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。3. 含双宾语和复合宾语的主动句变为被动语态的方法含双宾语和复合宾语的主动句变为被动语态的方法含有双宾语的主动句变为被动语态时，通常把指含有双宾语的主动句变为被动语态时，通常把指 “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) yesterday. 如果要把指如果要

6、把指“物物”的直接宾语变为主语，则在间接宾语的直接宾语变为主语，则在间接宾语前加前加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，要将其中的宾语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。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，主动语态变成被的

7、动词不定式，主动语态变成被动语态时要加上不定式符号动语态时要加上不定式符号 to。 We often heard Kate sing in the room. Kate was often heard to sing in the room (by us).4aRewrite the sentences using the passive voice.【点拨点拨】原句为一般过去时态，原句的谓语动词为原句为一般过去时态，原句的谓语动词为sold，宾，宾语为语为the fridge；改为被动语态时，应将；改为被动语态时，应将the fridge作主语，作主语，谓语动词用谓语动词用was sold的

8、形式。的形式。1. They sold the fridge at a low price.The fridge was sold at a low price. 【点拨点拨】分析原句的句子结构可知，分析原句的句子结构可知，stole是谓语动词，是谓语动词，my camera是句子的宾语；改为被动语态句时，应将是句子的宾语；改为被动语态句时，应将my camera作句子主语，谓语动词用作句子主语，谓语动词用was stolen的形式。的形式。2. Somebody stole my camera from my hotel room. My camera was stolen from my

9、hotel room. 3. Where did you take these photos? 4. Our parents advised us not to go out alone.5. Different writers translated the book into different languages. Where were these photos taken? We were advised not to go out alone. The book was translated into different languages by different writers.

10、4b Complete the sentences with 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. were invitedeat, like, invite, tell, lock, ring, break, bringwere brought句子主语句

11、子主语you与与invite之间存在被动关系。之间存在被动关系。villagers与与bring之间存在被动关系之间存在被动关系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 th

12、ey really _ them. was lockedrangbrokewere toldwere eatenlikedthe door与与lock之间为被动关系；而之间为被动关系；而we与与ring之间则为主动关系；其他各题相同。之间则为主动关系；其他各题相同。4cDecide whether active or passive forms should be used in these sentence. Write the correct forms in the blanks. The telephone _(invent) by Alexander Graham Bell. He

13、_ (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 an instrument similar to a telephone. was inventedwas bornworkedlearnedFinally, the telephone _ (invent) in 1876. The first sentence that _ (say) on

14、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 was invented in 1885.Who were they invented by?They were invented by Julie Thompson.What are they used for?They are used for

15、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.Free talkHow delicious the soup is! Who cooked it?It was cooked by Mom.What a beautiful card it is! Who made it?It was made by NoImage随 堂 练 习随 堂 练 习.根据句意及汉语提示完成句子。根

16、据句意及汉语提示完成句子。1The boy lost his parents during the last years _(地震地震)2The students were asked to _(翻译翻译) the story into English.earthquaketranslate3The police found the lost boy under the destroyed house through an _(仪器仪器)4I only have some _(饼干饼干) and a glass of milk every morning.5If you cant eat al

17、l these fruit，you may put some into your _(冰箱冰箱)instrumentbiscuitsfridgeThe girl is often heard to sing happily (by us) in her room. A computer was bought for me by my parents last week. An article was written by him last week. . 将下列句子变为被动语态。将下列句子变为被动语态。1. My parents bought me a computer last week.

18、2. We often hear the girl sing happily in her room.3. He wrote an article last week. 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. (用用I作主语，改为作主语，改为主动语态主动语态)I saw him read a book in his room.4. He saved a