Unit 9When was it invented

1、 Unit nine When was it invented?新目标九年级 第一课时 Section A 1a_4新目标九年级课时目标 1.学会一般过去时的被动语态 2.区分一般现在时和一般过去时的被动语态。 3.了解发明史并积极参加小发明，小创造活动- 人类的每一次改革都是社会前进的步伐，每一次思想的升华都越来越接近文明。发明使人类由黑暗走向光明。正因为如此，社会离不开发明。让我们一一起走向发明的前源吧。 Look at the things. In what order Do you think they were invented?firstsecondsecondthirdfourt

2、hFifth 1b Listen an inventions and the dates. （插入听力）Answer d1876 a1885 e1927 c1971 b1976Language point I think the telephone was invented before the car.我认为电话在汽车之前发明的. (1) I think 后接的一个分句做I think 的宾语,这个分句称叫做宾语从句. (2)was invented 是被动语态. (3)invent 做动词,意为 “发明,创造”,其名词有两种形式:一种为inventor “发明者”;一种为 inventio

3、n “发明,创造” 例如:Edison was a great inventor, he invented more than 1,000 inventions in his life.插入听力3212b listen again and match the items in columns A,B and C InventionWho was it/were they invented byWhat is it/are they used for?Shoes with adjustable heelsChelsea LanmonScooping really cold ice creamBa

4、ttery-operated sneakersJayce Coziar and Jamie EllsworthSeeing in the darkHeated ice cream scoopJulie ThompsonChanging the style of the shoes InventionWho was it/were they invented byWhat is it/are they used for?Shoes with adjustable heelsChelsea LanmonScooping really cold ice creamBattery-operated s

5、neakersJayce Coziar and Jamie EllsworthSeeing in the darkHeated ice cream scoopJulie ThompsonChanging the style of the shoes answerLanguage point 2.Its used for scooping really cold ice cream.它是用来舀十分冰冷的冰淇淋的. 句型be used for 意为 “被用来做”,介词for表示用途,后接名词或动名词.如:(1).sweater is used for keeping warm.毛衣是用来保暖的.(

6、2).The knife is used for cutting.小刀是用来切削东西的 语法知识 被动语态被动语态谓语动词的语态表示句子的主语和谓语动作之间的关系： 1）当句子的主语是谓语动作的执行者时，主、谓之间的关系称为主动语态； 2）当句子的主语是谓语动作的承受者时，主、谓之间的关系称为被动语态。 结构结构 执行者执行者 + 及物动词及物动词+承受者承受者 Workers make cars in this factory. 主主 谓谓 宾宾 承受者承受者 + be+及物动词过去分词及物动词过去分词 +(by +执行执行者者) Cars are made (by workers) in

7、this factory. 主主 谓谓 谓语动词的谓语动词的执行者执行者作主语，用作主语，用 _语态。语态。 谓语动词的谓语动词的承受者承受者作主语，用作主语，用_语态。语态。 被动语态的句型肯定句 主语 + be + 过去分词 + （by ）否定句 主语+ be not +过去分词 +（by ）一般疑句 Be +主语+过去分词 + （by ）?特殊疑问句 疑问词 + be +主语 + 过去分词 + （by ）？被动语态的时态 1.一般现在时 History is made by people 历史是人民创造的。 He is often asked to do this work 他常常被派做

8、这件工作。 2.一般过去时 These new cars were made in Tianjin in 2003. 这些新车是2003年在天津生产的。 3.一般将来时 Many believe that one day the earth will be destroyed if people do not learn to live in peace . 许多人相信，如果人类不能学会和平相处，地球总有一天要被毁掉。 4.现在进行时 A new railway is being built. 一条新铁路正在修建。 5.过去进行时 The road were being widened. 路那

9、时正在加宽。 5.现在完成时 He has been sent to work in Shanghai . 他已经被派往上海工作了。 6.过去完成时 A new hotel had been built when I got there . 我到那时，一座新旅馆已经建好了。 7.过去将来时 My neighbour said a new hotel would be built in six months. 我的邻居说六个月后新旅馆将会建好的。第二课时Section B 1a2c Can you say something about Chinese old inventions ?examp

10、le Who was the paper invented by? It was invented by Cai Lun. What was it used for? It was used for writing.Section BSweet crispy salty sour Potato chipssourlemonIce creamsweetteasweetsalty2a Listen and circle “T”(for true)or “F”(for false ) answerLanguage point 1.The custom said they werent salty e

11、nough.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.如: He asked me whom I was waiting for. 他问我在等谁. (2)enough修饰形容词或副词时应后置.如: The little child was not old enough to go to school.这个小孩太小了,不能去上学. 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

12、 it.) 2.The potato chips were invented by mistake.由于错误,薯片被发明了. Mistake 做名词,意为 “弄错,误解”如: 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”如: She didnt 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,弄错地”. I took his backpack by mistake. 我错拿了他的书包 He

13、put salt in her cup of tea by mistake.他错把盐放进她的茶里1.What kind of drink do you like?2.Do you like drinking tea?3.Do you know the history of tea?第三课时 section B 3a4bLanguage point 1.Although tea wasnt brought to the western world until 1610, this beverage was discovered over three thousand years before t

14、hat.虽然,茶直到1610年才传入西方世界,但是这种饮料在三千多年前就被发现了. (1)although 作连词,意为 “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.如: 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,但是我们周围全是空气. Although

15、(he is) quite young, he knows a lot. 虽然他很年轻,但是他很懂事.(3)notuntil 意为 “直到才”until 引导一个时间状语从句.如He didnt go to bed until his 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 Nung discovered tea 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

16、的火上烧饮用水时发现了茶叶. (1)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.如: According to the radio, it will rain tomorrow.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,那么他就对了. (2)介词over 在此意为 “在正方”而介 词above指 “在的上方”;介词on指 “在的上面” 3.Some leaves from a nearby bush fell

17、 into the water and remained there for some 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. (1)leaf的复数形式为leaves (2)remain 表示 “继续留在某处”如 How long will you remain here? 你要在此地停留多久? (3)fall into “落入,陷入”如: He was drunk and fell into the water.他酒醉跌落水中. 4.The emperor noticed that the leaves in the water produced a pleasant smell. 国王注意到,水里的叶子发出一种宜人的香味. (1)Notice 作动词,意为 “注意到”,后可以接: 名词或