人教版九年级上册英语 Unit 6　When was it inventedSection A(1a-2d) 教学课件

1、Section APeriod 1 ( 1a2d )paper-making 造纸术造纸术compass 指南针指南针printing 印刷术印刷术 gunpowder 火火 药药Do you know the following inventions?Who invented them, and when?paper Cai Lun105 A. D. printingBi Sheng1041-1045It was invented compass11th Centurygunpowder9th CenturyIt was invented carKarl Benz in 1885calcul

2、atorin 1971It was invented telephonein 1876TV in 1927It was invented Look at the things below. In what order do you think they were invented? Discuss them with your group. Then number them 1-4. 1a2314Well, I think the TV was invented after the car. I think the TV was invented before the car.Well, I

3、agree with you.I think the telephone was invented before the computer. I think was invented before / after . Well, I Listen and match the inventions with the years. 1b_ 1876_ 1885_ 1927 _ 1971 dacbStudent B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented

4、. Then change roles and practice again. 1cWhen was the telephone invented?I think it was invented in 1876. When was the car invented?It was invented in 1885.When was the TV invented?It was invented in 1927. When was the computer invented?It was invented in 1971. Listen and number the inventions 1-3

5、in the order you hear them. 2a_ shoes with special heels_ shoes with lights_ hot ice-cream scoop, runs on electricity132n. 鞋跟鞋跟; 足跟足跟n. 勺勺; 铲子铲子n. 电电; 电能电能InventionWhat is it / are they used for?shoes with special heels_ the style of the shoesshoes with lightsseeing _hot ice-cream scoop_ really cold

6、 ice-cream Listen again and complete the chart.2bchangingservingin the darkn. 样式样式; 款式款式Make conversations using the information in 2b.A: What are they used for?B: Theyre used for seeing in the dark.What is it used for? It is used for counting.calculatorWhat are they used for? They are used for givi

7、ng light.light bulbsWhat is / are used for? Its / Theyre used for Whats this?Zipper.n. 拉链拉链Where can you see it?Pants, trousers, bags, backpacks, dressers, shoes, suitcase, etc.2 2d d Read and answer questions.1. What invention are they talking about?2. Do they think it a great invention? Why? The z

8、ipper.Yes. Because it is used widely in our daily lives.Whitcomb L. Judson (1846 1909) was an American machine salesman, mechanical engineer and inventor. He developed and invented the zipper in 1890. Read the conversation again and role-play it.1. invent v. 发明发明 指经过认识和实践创造出前所未有的事物。指经过认识和实践创造出前所未有的事

9、物。Edison invented the light bulb. 爱迪生发明了电灯泡。爱迪生发明了电灯泡。invention和和inventor都是都是名词名词, 前者意为前者意为“发明发明”, 后者意为后者意为“发发明家明家”。Language pointsdiscover, invent和和find都是动词都是动词, 它们的词义相近它们的词义相近, 但是有区别但是有区别:discover意为意为“发现发现”, 指发现某种本来存在指发现某种本来存在,但以前未被发现但以前未被发现或未为人所知的事物或现象。或未为人所知的事物或现象。 The lost bike was discovered a

10、t the bus stop. 丢了的自行车发现在公共汽车站那儿。丢了的自行车发现在公共汽车站那儿。 Later I discovered that he was so kind. 后来我发现他如此善良。后来我发现他如此善良。知识链接知识链接invent 意为意为“发明发明”, 指发明以前不存在的东西。指发明以前不存在的东西。 Do you know who invented the computer? 你知道谁发明的电脑吗？你知道谁发明的电脑吗？find 意为意为“找到找到, 发现发现”, 指偶然发现或几乎没有困难地指偶然发现或几乎没有困难地发现。发现。 I found some old p

11、hotos in that drawer. 我在那个抽屉里发现了一些旧照片。我在那个抽屉里发现了一些旧照片。 2. be used for . 被被用来用来 是由是由“use sth. for sth. / doing sth.”结构转变而来结构转变而来, 介词介词for在这里表示用途或作用在这里表示用途或作用, 后面可以接名词、代词或动词后面可以接名词、代词或动词-ing形式。形式。This machine can be used for cutting grass. 这个机器可以用来割草。这个机器可以用来割草。 be used as意为意为“被用作被用作，被作为，被作为使用使用” Engl

12、ish is used as a foreign language in China. be used by意为意为“被被使用使用” Rubbers are often used by students to correct mistakes. 知识链接知识链接used to do sth.意为意为“过去常常做某事过去常常做某事”。 I used to smoke when I was young.use sth. to do sth.意为意为“使用某物来做某事使用某物来做某事”, 其被动结其被动结构为构为“sth. be used to do sth.”。 These knives are

13、used to cut pies.知识链接知识链接3. -Can you help me think of an invention? - My pleasure!My pleasure也可说成也可说成Its a / my pleasure.或或 A pleasure，意，意思是思是“我的荣幸；愿为你效劳；这是件愉快的事我的荣幸；愿为你效劳；这是件愉快的事”。 Will you please help me take the books to the classroom? 请你帮我把这些书带到教室里去好吗？请你帮我把这些书带到教室里去好吗？ My pleasure. / Its a pleas

14、ure. 愿为你效劳。愿为你效劳。 pleasure n. 愉快；高兴愉快；高兴She took no pleasure in her work. 她觉得自己的工作毫无乐趣。她觉得自己的工作毫无乐趣。I will remember this meeting with pleasure. 我会愉快地记着这次的会晤。我会愉快地记着这次的会晤。It is a pleasure to work with you. 和你一起工作真是件乐事。和你一起工作真是件乐事。 at (ones) pleasure 随便随便You are free to come and go at your pleasure. 来

15、去自由来去自由, 悉听尊便。悉听尊便。 take pleasure in以某事为乐以某事为乐,喜欢做某事喜欢做某事 with pleasure 愉快地愉快地, 高兴地高兴地, 没问题没问题知识链接知识链接 4. Well, you do seem to have a point you do seem to have a point 是个强调句，用是个强调句，用“助动词助动词do +谓语动词原形谓语动词原形”的结构。的结构。He does look well. 他的确看起来气色很好。他的确看起来气色很好。 You did give me a fright. 你真把我给吓了一跳。你真把我给吓了一

16、跳。Do Stay for supper! 一定要留下吃晚饭！一定要留下吃晚饭！ have a point 有道理有道理I admit (that) you have a point. 我承认你有理。我承认你有理。I guess you have a point there. 我想你说的有道理。我想你说的有道理。Strangely, both of them may have a point. 奇怪的是奇怪的是, 两个人似乎都有道理两个人似乎都有道理 5. it mentioned that the zipper was mention v. 提到；说到提到；说到Dont mention th

17、is problem this evening. 今晚别提这个问题。今晚别提这个问题。Nobody mentioned the real purpose of this meeting. 谁也没有提到这次会议的真正目的。谁也没有提到这次会议的真正目的。1) mention表示表示“提到；提及提到；提及”，是及物动词，其后接名词，是及物动词，其后接名词或代词作宾语时，无需用任何介词；另外注意或代词作宾语时，无需用任何介词；另外注意不接双宾不接双宾语语。如：。如： He never mentioned his girl friend to me./ He never mentioned to me

18、 that he had a girl friend. 他从未向我提及他有个女朋友。他从未向我提及他有个女朋友。注注 意意2) 若后接动词，要用动名词，不能用不定式若后接动词，要用动名词，不能用不定式 Whenever I mention playing football, he says hes too busy. 我一提起踢足球，他就说太忙。我一提起踢足球，他就说太忙。3) not to mention意为意为“更不用说更不用说; 还不算还不算” He can speak French, German and Japanese, not to mention English. 他会说法语、德语和日语，更不用说英语。他会说法语、德语和日语，更不用说英语。4) 口语中说口语中说 Dont mention it. 主要用来回答感谢，有时主要用来回答感谢，有时也用来回答道歉。如：也用来回答道歉。如：A：Thank you very much. 多谢你了。多谢你了。B：Dont mentio