九年级英语新目标 unit 9When was it invented 全单元课件文档格式.docx

1、coldice creamshoes with adjustable heelsJayce Coziar and Jamie Ellsworthchanging the style of the shoesbattery-operated snakersJulie Thompsonseeing in the darkheated ice cream scoopLanmonChelsea2c.Oral PracticeSentence pattern:What is it / are they used for?Who was it / were they invented by?It is /

2、 They are used for .It was / They were invented by .Sample dialogues: What is this? This is a heated ice cream scoop. What is it used for? It is used for scooping really cold icecream.A: Who was it invented by? It was invented by Chelsea Lanmon.Grammar FocusThe passive voice 被动语态在被动语态的句子中, 谓语部分的结构是

3、be + 过去分词。被动语态的句子的时态变化反映在 be 动词上。也就是说, 把一个句子做成被动语态的句子, 只需要写出 be 动词的所需时态, 再加上所给动词的过去分词就行了。当然, 这只是指谓语部分而言。我们知道, be 动词作为一个独立的谓语动词有自己现在分词（being）和过去分词 （been）。那幺, 下面我们来看看 be 在各种时态中的变化形式：一般现在时 am / is / are 一般过去时 was / were 一般将来时 shall / will +be 过去将来时 would / should + be 现在进行时 am / is / are + being 过去进行时

4、was / were + being 现在完成时 have / has + been 过去完成时 had + been1. 世界上许多国家都讲英文。English is spoken in many countriesall over the world . 2. 纸是中国发明的。Paper was invented in China.3. 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。He wont be allowed, by his father,to marry Mary.5. 他们

5、结束训练时将被派往部队。They would be sent to the armywhen they finished the training. 6. 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。This novel has been translated intoseveral languages.7. 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。They said that production costs had been

6、reduced.3a.PairworkHelpful inventions: vacuum cleaner, soundproof door and window, car,computer, fax machineAnnoying inventions: air-conditioner, truck, telephone, junk food, ice creamWhat is this in the picture?What is it used for?Do you think it is helpful / annoying?Dialogue 1: It is an alarm clo

7、ck. It is used for waking people up inthe morning. Do you think it is annoying? Sometimes, when I want to go onsleep.Dialogue 2: It is a light bulb. It is used for giving light. Do you think it is helpful? Yes, I think so. Because I always dohomework and read books in theevening by its light.Dialogu

8、e 3: It is a microwave oven. It is used for heating cold food andcooking meals. Yes, I think so. Because my parentsare very busy and I can use it tocook meals by myself. What do you thinkis the most helpfulinvention?B: I think the mosthelpful invention isthe light bulb.3b.Pairwork Why is that? Well,

9、 it gives people more time to work and play every day.Dialogue 2: What do you think is the mostannoying invention? I think the most annoying inventionis the air-conditioner. Well, I feel uncomfortable in theroom with an air-conditioner. What do you think are the mostannoying or helpful inventions? I

10、 think the truck is the most annoyinginvention and the soundproof doorand window is the most helpfulinvention.Dialogue 3:soundproof doorand windowA: The trucks always make noises andpeople cant sleep well. If they havethe soundproof door and window,people neednt worry about the noisesanymore.4.Group

11、workWhat would you do if you are alone on a tiny island? Id like to have a radio because I could listen to music all day. Yes, but thats not going to help youleave the island. I think it would bebetter to . Id like to have some matchesbecause I could light a fire to keepwarm.B: Yes, but thats not go

12、ing to helpyoubetter to have a cell phone. Id like to have a telescope becauseI could look far.you leave the island. I think itwould be better to have a signallamp.Dialogue 2:Section Bcrispy and saltyDescribe how food tastes.soursweetsweet2a.ListeningPotato chips were invented bymistake.2. They were

13、 invented in 1863.3. The customer thought the potatoes werent thin enough.TFT4. The customersaid they werentsalty enough.5. George wanted to make thecustomer happy.6. The customer was happy in theend.TFF_that potato chips were invented by mistake? Potato Chips_by a chef called George Crum. They were

14、 invented in_. GeorgeCrum cooked them for a long time until they _And he sprinkled lots ofsalt on them so they were_.The history of chipsDid you knowinvented1853were crispyreally saltywere1.The custom said they werent salty enough. 这个顾客说菜不够咸。（1） said 后是宾语从句, 省略了 that。当宾语从句主句用一般过去时, 从句也要用过去的某种时态。He a

15、sked me whom I was waiting for.他问我在等谁。Explanation但 enough 修饰名词时, 可以放在名词之前, 也可以放在名词之后。如:I have enough money to buy it. （ I have money enough to buy it.）2.Potato chips were invented by mistake. 薯片是无意中被发明的。mistake 做名词, 意为 “弄错, 误解”You have made a foolish mistake.你犯了一个愚蠢的错误。mistake 作动词, 意为 “弄错,误解”She did

16、nt speak very clearly so I mistook what she said.她讲的不清楚, 所以我误解了她的话。by mistake 意为 “错误地,无意地”I took his backpack by mistake.我错拿了他的书包。He put salt in her cup of tea by mistake.他错把盐放进她的茶里。3a.Reading1. What is this article about?I think it is about the invention of tea.2. When was it invented?Over 3,000 ye

17、ars before 1610.4. Who was it invented by?The emperor Shen Nong.5. How was it invented?According to an ancient legend, once when Shen Nong was boiling drinkingwater over an open fire, some leaves from a nearby bush fell into the water andremained there for some time. He noticed that the leaves in th

18、e water produced apleasant smell. Later he tasted the water and found it quite delicious. Thats howhe discovered tea.1. Although tea wasnt brought to thewestern world until 1610, this beveragewas discovered over three thousandyears before that.虽然茶直到 1610 年才传入西方世界,但这种饮料在三千多年前就被发现了。（1） although 作连词, 意

19、为 “虽然,尽管”,引导让步状语从句, 我们不能根据汉语习惯, 在后面使用连词 but, 不过它可以与 yet, still 连用;若主从句的主语相同, 且从句谓语含有动词 be, 可将从句主语和动词 be 省略。Although （it was） snowing, it was not very cold.虽然在下雪, 但是天气不是很冷。There is air around us, although we cant see it.尽管我们看不见, 但我们周围全是空气。notuntil 意为 “直到才”until 引导一个时间状语从句。He did not go to bed until h

20、is father came home.直到他爸爸回家时他才睡觉。2. According to an ancient Chinese legend, the emperor Shen Nong discoveredtea when he was boiling drinking water over an open air.根据中国古代的一个传说, 神农帝在户外的火上烧饮用水时发现了茶叶。According to 是个短语介词,意为 “根据;依照”后接代词,名词或由疑问词以及 whether 引出的名词性从句。According to the radio, it will rain tomo

21、rrow. 根据收音机说,明天有雨。According to what you said just now, he was right then.根据你刚才说的,那幺他就对了。leaf 的复数形式为 leavesremain 表示 “继续留在某处”3. Some leaves from a nearby bush fell into the water and remained there forsome time.一些叶子从附近的灌木丛落到水里。并在水里浸泡了一段时间。How long will you remain here?你要在此地停留多久?fall into “落入, 陷入”He w

22、as drunk and fell into the water.他酒醉跌落水中。WritingA sample versionFrom pie plate to flying diskThe flying disk was invented by college students. Flying disk is a metal pie plate.In the 1950s, several college students ate pies made by a bakeryin Bridgeport, Connecticut. They found it interesting to thr

23、ow the pie plates witheach other. Then it became a game. Today, there are flying disk clubs, magazinesand even a festival.Self CheckThe abacus was invented in the sixth century byChinese people.The umbrella was invented about 4000 years ago in Assyria, China and Egypt.In Italy in 1854 , Ignatio Porro invented the binoculars.The Camera was invented by Joseph Nicephore Niepce in 1827 who took thefirst picture.The bicycle was invented in the 1880s in England.Thank you for listening!