义务教育阶段九年级英语第九单元教案.docx

1、义务教育阶段九年级英语第九单元教案Unit 9 When was it invented?第一课时 单元分析与提示教学目标语言目标：1、掌握一般过去时的被动语态。2、学会谈论发明的历史，会使用以下的基本句子：When was the car invented? It was inverted in 1885.Who were they invented by? They were inverted by What are they used for? They are used for seeing in the dark认知目标弄清主动语态与被动语态的差异，通过练习和运用加以巩固情感目标1、

2、通过本单元学习使学生懂得人类的科学发明创造了丰富的物质文明；2、培养学生的创造发明的能力的愿望。教学重、难点一般过去时态的被动语态1、基本结构：助动词be（was / were）+及物动词的过去分词A thief was caught last night.They were asked to speak at the meeting.肯定式：It was made.否定式：It was not made.疑问式：Was it made? No, it wasnt Yes, it was 2、主动语态被动语态1）主动结构的宾语变为被动结构的主语；2）主动结构的谓语动词由主动语态变为被动语态；3

3、）主动结构的主语变为介词by的宾语，组成介词短语，放在被动结构中谓语动词之后。在动作的执行者无须说明或不必强调时，by短语可以省略。4）主动语态、被动语态两种时态要保持一致：We repaired the motor.The motor was repaired by us.教学安排4课时第一课时：Section A: 1a, 1b, 1c, 2a, 2b, 2c第二课时：Section A: 3a, 3b, 4第三课时：Section B: 1a, 1b, 2a, 2b, 2c, 3a第一课时：Section B: 3b, 4a, 4b and Self CheckUnit 9 第二课时Te

4、aching aims学习一般过去时的被动语态和特殊疑问句。Teaching of new lesson1. Warm-upAsk the students to be familiar with the words below according to the pictures on computer.Telephone, calculator, car, personal computer, TV, electric light, light bulb, alarm, clock, microwave oven, electric slipper.2. Presentation 1) 教学

5、When was the car invented? It was invented inChoose the three inventions of these and ask students to guess when each one was invented.For example, you might choose car, telephone, and personal computer.Have several different students guess and write the dates on the board. Ask the class to repeat t

6、he questions and answers.T=Teacher, S=StudentT: When was the car invented ? (Class repeat.)T: Good. Now Jackie, what was your guess?S1: 1900T: OK. Jackie, repeat after me. The car was invented in 1900.Repeat the process with several different inventions.At last, make students find out the real dates

7、.2) 教学Who were the light bulbs invented by? And what are they used for ?呈现Edison and light bulbs的画面。Tell the students Edison invented light bulbs.Then ask the students to answer the questions below.T: Who were light bulbs invented by? ( Class repeat )T: Good. Now Class repeat after me. They were inv

8、ented by Edison.3) 教学 操练1a, 1c, 2c学生看书本上1a的图画，根据图画，把1a, 1c, 2c中的语言点综合起来，叫学生相互间回答问题。并用刚刚学到的目标句型来操练。最后，抽查几对学生，让他们在全班面前，按要求进行对话。4) 教学1b, 2a, 2b首先，帮助学生明确本题的要求。接着，听力练习，学生根据录音内容完成1b, 2a and 2b.最后，重放一遍录音内容，学生跟读。3、Consolidation and Extension.完成一个任务Ask some students to read about an invention using an encycl

9、opedia or other book from the library, or by looking up information on the Internet. Have the students write up a short report and draw a simple picture of the invention or bring in a photo of it. Ask each students to show the picture and read his or her report to the class.Homework 1、根据时间和人物写出发明物。1

10、) 1885_ 2) 1876 _3) 1927_ 4) 1976 _5) Julie Thompson _ 6) Chelsea Lanmon _Unit 9 第三课时Teaching aims1、熟练掌握被动语态用法。2、学会用被动语态表达对创造和发明事物的认识和看法。Teaching of new lesson1. Warm up:Ask the students to practice speaking.A: When was invented ?B: It was invented in A: Who was it invented by ?B: It was invented by

11、 A: What is it used for ?B: It is used for 2. Presentation.1) 教学helpful, annoyingAsk students to give some examples to show what each word means. For example.A vacuum cleaner is helpful. A very loud truck is annoying.2) 教学3a呈现alarm clock, light bulb, microwave over, tea, and so on的画面。Then ask the st

12、udents the following questions.T: Is the light bulb useful or annoying ? ( Opinions may differ. )S1: I think its useful.T: Why is it ?S1: Well, it gives people more time to work and play every day. Then ask the students to make a list of five helpful inventions and five annoying inventions on their

13、own. Give the class about five minutes to do this.3) 教学 操练3bAsk the students to work in pair the following talk using the target language.A: What do you think is the most helpful / annoying invention?B: I think the most helpful / annoying invention is A: Why is that ?B: Well, it gives people3. Conso

14、lidation and ExtensionImagine that you are alone on a tiny island, Choose five inventions you would like to have on the island with you. Tell the group what you chose and why.Homework句型转换1. She was seen to come out of the library by him.（变被动语态）2. When are trees often planted?（变被动语态）3. The League was

15、 founded in Guangzhou in 1922（就画线部分提问）4. Did the students wear the school clothes a lot ?（变被动语态）5. Kate took god care of the baby yesterday evening.（变被动语态）1. His aunt bought him a bicycle.（变被动语态）2. His aunt bought him a bicycle.（变被动语态）Unit 9 第四课时Teaching aims学会表达由于这些创造和发明对你的生活的帮助和对生活质量的提高认识Teaching

16、of new lesson1. Warm up.Ask the students to practices talking to each other.A: What do you think is the most helpful invention?B: I think the most helpful invention is A: Why do you think so ?B: Well, it gives me2. Presentation教学1aFirst the teacher asks the students what kind of fruit food and drink

17、 you like the best and writes down on the blackboard.Such as: potato chips, ice cream, tea, lemon, chocolate, oranges, salad, popcorn, pickle and so on.教学2a, 2b.1) 首先，听力前的brainstorm.First, Let students describe how potato chips taste and describe how helpful the potato chips.Then, ask: When and wher

18、e were potato chips invented?Who were potato chips invented by?How were potato chips invented?Key words: by accident, customer, restaurant, by mistake.2) at last，听力练习，要求学生快速阅读2a, 2b.帮助学生明确听力语言目标的要求。接着，听力练习，学生根据录音内容完成2a and 2b.3) 教学 阅读3a呈现a cup of tea和the emperor( who was Shen Nung) was boiling drink

19、ing water over an open fire的画面。Then ask the students the following questions.T: What is tea used for ? When was it invented ?Who was it invented by ? How was it invented ?Then ask the students to make a list of five helpful inventions and five annoying inventions on their own. Give the class about f

20、ive minutes to do this. 3. Consolidation and Extension完成一个任务: Blind Taste TestAsk a students to bring to class some foods that taste sweet, crispy, salty, and sour. Have him or her blindfold students one at a time, let the student taste little piece of each food, and say if each food is sweet, crisp

21、y, salty, or sour. Students may use more than one word to describe some foods.Homework用动词的适当形式填空。A: When _ the Dinosaur World _ (build) ?B: It _ _ (build) in 1988. you will see many kinds of dinosaurs in it. Shall we go to see them ?A: Yes, Id love to. But where is the entrance?B: Here, this side do

22、or is _ (use) as an entrance. Theres something wrong with the front door. Its _ (lock).A: Wow, these must be dinosaur eggs. Where _ they _ (discover)Unit 9 第五课时Teaching aims1、通过对被动语态表达的发明和创造的事物来认识人类科技进步和培养学生的创新能力来表达情感，态度，价值观的课堂体现。2、通过对一般过去时被动语态的掌握进一步了解和掌握被动语态其他时态的表达。Teaching of new lesson1. Warm-up呈

23、现: computer, radio, camera, light bulb, car, bicycle, TV, tea, and so on.Then ask students to discuss pictures and say something about what he / she would like best in class.2. Presentation.1）教学首先，写作前的brainstormFirst, read the instructions to the class and make students look at the sample first sent

24、ence of 3a.Then, explain that students can combine more than one point into one sentence.2）教学 写作3b, 4a.Finish 3b according to working in pairs.At last, ask a few students to tell the class about the partners they have interviewed.Finish 4b说明：通过该活动用语言目标提供阅读和写作练习。3）教学Self Check 2让学生找出Self Check 2. 这些东

25、西是何时发明的并根据如下句子进行俩俩对话。A: What is it ?B: Its an abacus. Umbrella / a binoculars, camera, bucycle.A: What is it used for ?B: Its used for A: Oh, thats cool! Who was it invented by?B: It was invented by A: What would you like best ?B: Id like best .3. Consolidation and Extension完成一个任务: Crazy InventionsAsk students to build their own crazy inventions using paper, cardboard and other materials they may have at home. Have them bring their inventions to class and say something in class.Homework汉泽英1、计算机是何时发明的？2、谁发明了计算机？3、计算机是用来做什么？4、你认为什么是最有用的发明？5、它能够给人们更多时间工作和玩。