【最新】九年级英语上册 Unit 9《When was it invented》Section A 课件 人教新目标版 课件

1、 Unit 9Section AWarming uplight bulbWhen were they invented? watchmicrowave oven alarm clockListening (1b: P68)1876年年 1885年年1927年年1971年年1976年年Sample dialogues:A: When was the telephone invented?B: I think it was invented in 1876.A: When was the car invented?B: I think it was invented in 1930. I thin

2、k it was invented after the telephone.Pairwork (1c:P68)C: I dont think so. I think it was invented in 1873, so it was invented before the telephone.D: I dont agree. I think it was invented in 1885 and it was invented after the telephone.Listening (2a, 2b: P69)312 scooping really cold ice creamshoes

3、with adjustable heels Jayce Coziar and Jamie Ellsworth changing the style of the shoes battery-operated snakers Julie Thompsonseeing in the dark heated ice cream scoopLanmonChelseaOral Practice (2c: P69) Sentence pattern: What is it / are they used for? Who was it / were they invented by? It is / Th

4、ey are used for . It was / They were invented by .Sample dialogues: A: What is this?B: This is a heated ice cream scoop.A: What is it used for?B: It is used for scooping really cold ice cream.A: Who was it invented by?B: It was invented by Chelsea Lanmon.Grammar Focus (P69) The passive voice 被动语态被动语

5、态 在被动语态的句子中在被动语态的句子中, 谓语部分谓语部分的结构是的结构是be + 过去分词。被动语态过去分词。被动语态的句子的时态变化反映在的句子的时态变化反映在be动词上。动词上。也就是说也就是说, 把一个句子做成被把一个句子做成被 动语态的句子动语态的句子, 只需要写出只需要写出be动词动词 的所需时态的所需时态, 再加上所给动词再加上所给动词的过去分词就行了。当然的过去分词就行了。当然, 这只是指这只是指谓语部分而言。我们知道谓语部分而言。我们知道, be动词作动词作为一个独立的谓语动词有自己现在为一个独立的谓语动词有自己现在分词分词(being)和过去分词和过去分词 (been)。

6、那。那么么, 下面我们来看看下面我们来看看be 在各种时态中在各种时态中的变化形式：的变化形式：一般现在时一般现在时 am / is / are 一般过去时一般过去时 was / were 一般将来时一般将来时 shall / will + be 过去将来时过去将来时 would / should + be 现在进行时现在进行时 am / is / are + being 过去进行时过去进行时 was / were + being 现在完成时现在完成时 have / has + been 过去完成时过去完成时 had + been 1. 世界上许多国家都讲英文。世界上许多国家都讲英文。 Eng

7、lish is spoken in many countries all over the world . 2. 纸是中国发明的。纸是中国发明的。 Paper was invented in China.3. 这栋大楼是去年建造的。这栋大楼是去年建造的。 The building was built last year.Make sentences4. 他父亲不会让他娶玛丽为妻的。他父亲不会让他娶玛丽为妻的。 He wont be allowed, by his father, to marry Mary. 5. 他们结束训练时将被派往部队。他们结束训练时将被派往部队。 They would

8、be sent to the army when they finished the training. 6. 这个计划正在执行中。这个计划正在执行中。 The project is being carried out. 8. 这本小说已被译成了几种语言。这本小说已被译成了几种语言。 This novel has been translated into several languages. 7. 那时这案子正在调查中。那时这案子正在调查中。 The case was being investigated then. 9. 他们说生产成本已经下降了。他们说生产成本已经下降了。 They sai

9、d that production costs had been reduced.Pairwork (3a:P70) Helpful inventions: vacuum cleaner, soundproof door and window, car, computer, fax machine Annoying inventions: air-conditioner, truck, telephone, junk food, ice cream Sentence pattern: What is this in the picture? What is it used for? Do yo

10、u think it is helpful / annoying?Dialogue 1:A: What is this?B: It is an alarm clock. A: What is it used for?B: It is used for waking people up in the morning.A: Do you think it is annoying?B: Sometimes, when I want to go on sleep.Dialogue 2: A: What is this? B: It is a light bulb. A: What is it used

11、 for?B: It is used for giving light.A: Do you think it is helpful?B: Yes, I think so. Because I always do homework and read books in the evening by its light.Dialogue 3:A: What is this?B: It is a microwave oven. A: What is it used for?B: It is used for heating cold food and cooking meals.A: Do you t

12、hink it is helpful?B: Yes, I think so. Because my parents are very busy and I can use it to cook meals by myself.Pairwork (4:P70)Dialogue 1:A: What do you think is the most helpful invention?B: I think the most helpful invention is the vacuum cleaner. A: Why is that?B: Well, it can help me clean the

13、 floor when mother asks me to do the cleaning.Dialogue 2:A: What do you think is the most annoying invention?B: I think the most annoying invention is the air-conditioner.A: Why is that?B: Well, I feel uncomfortable in the room with an air-conditioner.A: What do you think are the most annoying or he

14、lpful inventions?B: I think the truck is the most annoying invention and the soundproof door and window is the most helpful invention. Dialogue 3:soundproof door and windowA: Why is that?B: The trucks always make noises and people cant sleep well. If they have the soundproof door and window, people

15、neednt worry about the noises anymore.Groupwork (4: P70) What would you do if you are alone on a tiny island?A: Id like to have some matches because I could light a fire to keep warm.B: Yes, but thats not going to help you leave the island. I think it would be better to have a cell phone.Dialogue 1:

16、A: Id like to have a telescope because I could look far.B: Yes, but thats not going to help you leave the island. I think it would be better to have a signal lamp.Dialogue 2:What is invention? An invention is a new thing that someone has made.When was it invented?189619391709被动语态(The Passive Voice)

17、英语中的动词有两种语态：主动语态英语中的动词有两种语态：主动语态(The Active Voice)和被动语态和被动语态(The Passive Voice)。主动语态中，主语是。主动语态中，主语是谓语动作的执行者，被动语态中，主语谓语动作的执行者，被动语态中，主语是谓语动作的承受者。是谓语动作的承受者。 被动语态的构成：被动语态的构成：be +及物动词的过去及物动词的过去分词分词一般现在时态的被动语态：一般现在时态的被动语态：am / is / are + p.p一般过去时态的被动语态：一般过去时态的被动语态：was / were + p.p一般将来时态的被动语态：一般将来时态的被动语态：w

18、ill be + p.p现在完成时态的被动语态：现在完成时态的被动语态：have / has been +p.p现在进行时态的被动语态：现在进行时态的被动语态：am / is / are being + p.p过去完成时态的被动语态：过去完成时态的被动语态：had been + p.p含有情态动词的被动语态：含有情态动词的被动语态：can / may / mustbe + p.p 主动句变被动句的方式：主动句变被动句的方式： 主动句：主动句： 主语主语 + 及物动词谓语及物动词谓语 + 宾语宾语 被动句：被动句： 主语主语 + be + 过去分词过去分词 + by 宾语宾语 Our teach

19、er loves her students. Her students are loved by our teacher.请把下列主动句变为被动句请把下列主动句变为被动句:They produced that kind of car.The workers built a bridge over the river.Mother tells me a story every day.That kind of car was produced by them.A bridge was built by the workers over the river.I am told a story by

20、 Mother every day.What order do you think they were invented? Number them1512345Listen and match the inventions with the dates.abceWhen was the telephone invented?I think it was invented in 1876.Listen and number the inventions in the order you hear them.123Listen again and match the items in column

21、s A, B and C. be used for 被动语态被动语态, “被用来做被用来做”。介词。介词 for 表目的用途表目的用途, 可接名词或动名词形式。可接名词或动名词形式。e.g. The woolen sweater is used for keeping warm. 毛衣是用来保暖的。毛衣是用来保暖的。Explanation:car / 1885 / Henry Ford / travel fastfridge / 1862 / Harrison / keep food freshwashing machine / 1858 / Smith / wash clothesExpla

22、nation:1. annoying adj. 讨厌的讨厌的, 恼人的恼人的 (往往指事往往指事物物)e.g. How annoying it is! 真讨厌。真讨厌。 annoyed adj. 生气的生气的, 恼怒的恼怒的 (往往指人往往指人)e.g. My father is annoyed with me. 爸爸在生我气。爸爸在生我气。Explanation:2. helpful adj. 有帮助的有帮助的, 有益的有益的e.g. Mr. White is a very helpful man.构词法：构词法：n + ful adj再如再如: use + ful usefulthank

23、+ ful thankfulbeauty+ ful beautifulcare + ful carefulmicrowave oven alarm clocklight bulb Discuss: I think the most helpful invention is Id like to have abecause I could Its used for I also want abecause itExercises: 句型转换句型转换 1. She was seen to come out of the library by him. （变为主动语态）（变为主动语态） He _ _

24、 _ out of the library. 2. When are trees often planted. （变为主动语态）（变为主动语态） When _ people often _ _?3. The League was founded in Guangzhou in 1922. （就画线部分提问）（就画线部分提问） _ _ _ _ the League _? saw her comeplant treedoWhen and where wasfoundedExercises: 句型转换句型转换 4. Did the students wear the school clothes a

25、 lot? （变为被动语态）（变为被动语态） _ the school clothes _ a lot?5. Kate took good care of the baby yesterday evening. （变为被动语态）（变为被动语态） The baby _ _ good care of _ Kate yesterday evening.was takenbyWerewornsour, sweetlemonice creamsweetsweetteapotato chipscrispy, saltyListen and circle “T” or “F”.1b Listen and c

26、omplete the sentences. A: Id like to _ outside. B: You could help clean _ the city parks.2. A: Id like to _ homeless people. B: You could give _ food at the food bank.3. A: Id like to cheer _ sick kids. B: You could _ them in the hospital.4. A: Id like to help kids _ their schoolwork. B: You could _

27、 in an after-school study program.upworkhelpoutupvisitwithvolunteerExplanation:Mistake 作名词作名词 “错误，误会错误，误会”。也可以作动词。也可以作动词 “弄错，弄错，犯错犯错”。常见形式：。常见形式：make a mistake 出错出错e.g. You have made a mistake here. 你这儿犯了一个错误。你这儿犯了一个错误。mistakefor 错把错把当作当作 They mistook him for his brother. 他们错把他认作他的兄弟。他们错把他认作他的兄弟。by

28、mistake 错误地错误地 e.g. They sent the letter to me by mistake. 他们误把那封信送到了我这儿。他们误把那封信送到了我这儿。Answer:根据答案写问题。根据答案写问题。1. Q: _ The stove was invented in 1896.2. Q: _ The Wright brothers invented the airplane.3. Q: _ The washing machine is used for washing for washing clothes.4. Q: _ The washing machine was i

29、nvented by Fisher.5. Q: _ The helicopter was invented in 1939.When was the stove invented?Who invented the airplane?What is the washing machine used for? Who was the washing machine invented by?When was the helicopter invented?Read and answer:1. What is the article about?2. When was it invented?3. W

30、ho was it invented by?4. How was it invented?The article is about the invention of tea. It was invented over three thousand years ago.It was invented by the Chinese emperor, Shen Nong.It was invented by accident.1. by accident 偶然地，碰巧偶然地，碰巧 与与 by chance 同义。同义。e.g. X-rays first discovered by a German

31、scientist, William Konrad Rontgen, in 1895, almost by accident. X射线是射线是1895德国科学家威廉、康拉德国科学家威廉、康拉 德，伦琴几乎是在碰巧的情况下首先发现的。德，伦琴几乎是在碰巧的情况下首先发现的。2. according to “根据根据” 是一介词短语是一介词短语e.g. According to the papers, there was a big fire in London. 据报道，伦敦发生了火灾。据报道，伦敦发生了火灾。Explanation: 3. notuntil “直到直到才才” 用于用于notun

32、til 结构中的主句谓语多为短暂性动结构中的主句谓语多为短暂性动词。词。e.g. We didnt finish the work until yesterday evening. 我们昨天晚上才做完这项工作。我们昨天晚上才做完这项工作。注：注：until 的主句中也可以用延续性动词，此时的主句中也可以用延续性动词，此时 until 不与不与 not 连用，表示连用，表示 “直到直到为止为止”。e.g. I will wait until he returns. 我将等到他回来。我将等到他回来。Explanation: Read and answer:1. Who invented flyin

33、g disks?2. When were they invented?3. What did the college students use for flying disks?4. Where were the metal pie plates from?5. How were the flying disks invented?College students invented flying disks. They were invented in 1950s.They use metal pie plates for flying disks.They were from a bakery Bridgeport, Connecticut.The college students ate pies and then threw pie plates.Writing:Problemwriting testsNewinventiona pen that listens and writesUselisten and write instead of you Price100 yuan eachFill in the blanks:sweetsaltysourcrispy动词填空：动词填空： The TV _ (i