重庆市第三十九中学九年级英语上册 Unit 6 When was it invented？Period 5学案（无答案）（新版）人教新目标版.doc

unit 6 when was it invented （5）section b 1a-1e 学习目标掌握本课单词、短语、句型继续学习使用一般过去时态的被动语态进行听力训练1. crispy adj. 脆的；酥脆的；2. salty adj. 咸的；3.sour adj. 酸的，有酸味的；4. customer n. 顾客。 课前探究一、 导入在前面的课程我们已经学习并了解了几种有用的发明，它们在很大程度上改变了我们的生活，使我们的生活更丰富多彩。下面提几个简单的问题来回顾上节课的内容：1. when was the telephone invented? _2can you imagine the life without telephones?_3what do you think is the most helpful invention?_4. what would you most like to invent if you could?你们知道这个人吗？george，他发明了薯片、薯条。george /d:(r)d/ crum /krm/乔治 克拉姆 今天我们一起来了解薯条的发明吧。二、根据句意及首字母提示完成单词。1. i dont like lemons because they are too s . 2. lucy and lily are twins. people often m them for each other.3. for a restaurant, c are the most important.4. the fish was too s because my mom put too much salt on it.5. we often put the food into the f to keep it fresh in summer. 预习交流 难句提前知晓1. -did you know potato chips were invented by mistake? -i didnt know that. who invented them? -potato chips were invented by a cook called george grum. -我不知道，是谁发明的? -土豆条是由一个叫george grum的厨师发明的。2. the customer thought the potatoes were not thin enough.顾客认为土豆不够薄。3. finally he put lots of salt on them so they were salty enough. 最后他在他们上面撒了许多盐以使他们足够咸。 互助提升完成教材1a-1e的任务1. 翻开课本p45，迅速阅读1a部分的内容。并按要求完成课本上相应的任务in 1a. 2.完成1b部分的任务：write the name of a different food after each word 3. 听第一遍录音，完成课本上1c部分的任务: listen and circle t or f. 4. 听第二遍录音，完成课本上1d部分的任务：listen and complete the sentences. 5. 再听录音一次，填空完成对话。boy 1: hey, did you know that potato chips were by mistake?boy 2: really? what do you mean?boy 1: well, here on the bag it says that they were invented by a cook george crum.boy 2: when was that?boy 1: oh, it was back in 1853.boy 2: so, why was it an ?boy 1: well, one day, a customer came into the restaurant where george worked. he a plate of fried potatoes. when the potatoes came, he said they were cut too thick and sent them back to the kitchen.boy 2: so what happened?boy 1: well, george was angry, so he cut the potatoes really, really thin, and he cooked them for a long time they were crispy. and he put lots of on them so they were really salty. he thought the would hate them.boy 2: and?boy 1: and the customer loved them and asked for more. he told the other customers about them, and soon everyone was thinly cut, crispy, salty potato chips.boy 2: and were still eating them today. what a cool story!6.放下听力材料，利用1c和1d的听力内容；模仿1e方框所给的对话编造一个有关土豆条的发明的对话练习。体验成功1.potato chips是一个复合名词，其中第一个名词用作定语修饰后一个名词，这样的例子有很多，又如: alarm clock, telephone number等。【知识拓展】复合名词变复数的规则，你一定要牢记啊！通常只把主体名词变为复数school boyschool boys(男生) apple treeapple trees(苹果树) vegetable sandwichvegetable sandwiches(蔬菜三明治) girl friendgirl friends（女朋友）如果没有主体名词，在最后一个名词上用复数。good-for-nothinggood-for-nothings（饭桶、无用的人）three-year-oldthree-year-olds（三岁的孩子）由man, woman和另外一个名词构成的复合名词，两个部分都要用复数。man teachermen teachers(男教师)gentleman farmergentlemen farmers （乡绅）2.by mistake 错误地by mistake 是介词短语，意为“错误地；无意地；不小心地”，指由于错误的判断而千百万的失误，常在句中作状语。【备课例句】i took your bag instead of mine by mistake.我错拿了你的手提包，还以为是我的呢。susan forgot her key and locked herself out by mistake.苏珊忘了带钥匙，误把自己关在门外了。【横向辐射】mistake.formistake.for把错认为, 错把当作she mistook him for the professor.她把他错当作教授了【课堂变式】im sorry ive taken your dictionary _ because they have the same colour. it doesnt matter. a. at once b. by mistake c. in general d. as well 快乐心得我帮助了_同学说_。_同学帮助我学会了_.我在课堂上与同学对话_次。我对我在课堂上的_（表现）感到满意。本堂课我还有_不懂。拓展延伸 完成句子。1.顾客最后终于高兴了。the customer was happy .2.这个顾客说这个薯条不够脆。the customer said that the potato chips werent .3.乔治想让顾客高兴。george wanted the customer .4.薯条是一个名crum的厨师发明的the potato chips a chef crum.5、 昨天这个厨师往鱼上面撒了许多盐。the lots of salt the fish yesterday.阅读短文，完成任务。can you imagine what edisons life was like in the years after he had invented the electric lamp?many things had to be invented and built before the electric lamp could really be used by all. everything that was needed had to be thought of and built by edison and the men who worked with him. there was no place where they could buy the things they needed. edison made 360 inventions more in order to send electric power to wherever it was wanted. edison directed (管理) all the work himself: testing new machines, pulling wires under ground, fixing lights, and so on. he seemed to be everywhere at the same time. he wanted his men to do as much work as he did. but he never asked them to do things that he himself would not do or could not do. he had never thought much about regular hours for sleep; he often forgot completely about sleeping. he slept for a few minutes at a time, in the middle of the night, in an underground room at his power station, with a metal box as his bed. during these days, he almost never saw his wife and children. everyone probably expected that edison enjoyed his success when his work was completed. however, he did not notice at all the money and honor he received, because soon he became interested in other ideas. ()1.after edison invented the electric lamp, he _. a.did nothing b.built many things c.stopped inventing things d.needed nothing ()2.who thought of and built everything which was needed? a. edison. b.the men. b. c.his wife. d.his children. ()3.edison never asked his men to do _. a. as much work as he did b.what he would do c.what he could do d.what he would not do or couldnt do ()4.edison had never thought much about regular hours for sleep. it means _. a.edison never forgot about sleeping b.edison often kept re