九年级unit 9 when was it invented？学案全

詹大悲中学初三英语导学案：Unit9 When was it invented？（Section A）A.课前预习1.预习sectionA的主要知识点（请学生务必根据自己的学习情况自由补充！！）被动语态小结：1.被动语态的时态: 被动语态的时态通过be的变化来体现，它必须与主语的人称、数一致。

以下是几种常用的被动语态:(1)一般现在时的被动语态: am / is / are + 动词的过去分词。

Eg：This book in two languages.这本书是用两种语言写的.(2)现在进行时的被动语态: am / is /are + being + 动词的过去分词。

Eg: A school is by the workers now.工人们正在建一所学校.(3) 一般将来时的被动语态: will / be going to + be + 动词的过去分词.Eg: The project will next month.这项工程下个月就完工.(4) 现在完成时的被动语态: have / has + been + 动词的过去分词.Eg: My homework .我的作业以完成了.(5) 一般过去时的被动语态: was / were + 动词的过去分词.Eg: The classroom three days ago. 教室是三天前被打扫的.(6) 含有情态动词的被动语态: 情态动词+be +动词的过去分词.The classroom every day.教室应该每天都被打扫.2.被动语态的否定句和疑问句:（1）否定句的构成：必须在第一个助动词后加not。

Eg：His homework finished. 他的作业还没有完成。

（2）疑问句的构成：将第一个助动词置于主语之前。

Eg：When the bridge ？这座桥是何时建的？3、主动语态变被动语态的方法:（1）把主动语态变的宾语作为被动语态的主语（2）主动语态的谓语改成be + 过去分词的形式，作为被动语态的谓语，be随着主语以及时态的变化而变化。

中学九年级英语全册《Unit 9 When was it invented》学案人教新目标版第1课时 Unit 9 Section A 1a—1c （总第52课时）【Lerning objectives】1.Knowing: invent,c alculator.2.Understanding:The meaning of the listening contents.3. Practicing: mordern inventions,bet,take a history class,in those days,afford,hand-held.4.Habit-forming:---When was the car invented?---It was invented in 1885.municating:Practise their own cnversations using"was/were+V过分".【Important learning points】1.Knowing: invent,calculator.2.Understanding:The meaning of the listening contents.3.Habit-forming:---When was the car invented?---It was invented in 1885.【Learning process】一、自主学习（教师寄语：从自主中培养能力，在学习中获得乐趣）Task1:Learn2a---2b1.Answer some questions,such as:①What will you do on Clean-up Day?______________________________.②Do you have any ideas to tell people about the Clean-Up Day? For example?_______________________________________________________________2.A group of students ar e planning a City Parks Clean--Up Day. They are talking aboutways to tell people about the Clean--Up Day.Listen and check the things the students aregoing to do.Finish 2a.3.Listen to the tape again and fill in the blanks.①We____ to ___ ____ ____a plan.②We can't_____ _____making a plan. Clean-Up Day is only two weeks from now.③I'll_____ _____all our ideas.④We could______ _____signs.⑤I'll ______ _____advertisements after school.⑥We could each_____ _____ten people and ask them to come.4.Role-play the conversation in pairs.Task2:Learn 2cPairwork to role-play the conversation according to 2b.A:We need to come up with a plan.B:Let's have lunch first.A:No,we can't put off making a plan. What should wedo to help homeless people?B:We should_____________________________________________________________.A:_____________________________________________________________.二、合作共建（教师寄语：学会合作，乐于合作，提高自我）翻译下列句子，注意划线部分的含义①We need to come up with a plan._________________________________.②We can't put off making a plan. Clean-Up Day is only two weeks from now.________.③I'll write down all our ideas.__________________________.④We could put up signs.______________________________.⑤I'll hand out advertisements after school.______________________.⑥We could each call up ten people and ask them to come.________________________.三、系统总结（教师寄语：只有不断总结与归纳，才会更系统更全面）1.总结need的用法并举例说明①作为实义动词：____________________举例说明________________________②作为情态动词：_____________________举例说明_______________________2.理解由from构成的短语的含义:from now________from now on_______be from___from then on________from---to--_______be different from______be far away from_____come from________hear from______e up with（同义短语）_____hand out（反义短语）____call up（同义短语）___四、诊断评价（教师寄语：相信自己，永不放弃）（一）根据汉语提示完成句子1.I'll help________（清扫） the city park.2.We can't___________（推迟制订计划）.3.I'd like to__________________（鼓舞）the sick kids.4.We're going __________（建立） a food bank to help hungry people.5.You could__________（分发食物） at a food bank.6.We need_________________________（想出） a plan7. These words are all very important. ________________（把…写下来）, please!8.He also_________（张贴）some signs asking for old bikes（二）选择正确答案。

Unit 9 By the time I got outside, the bus had already left．The Sixth PeriodⅠ．Teaching Aims and Demands1．Knowledge Objects（1）Verbsrush, realize, invite, show up, stay up．（2）Write an article according to the pictures given．（3）V ocabularyhomework, look, costume, empty2．Ability Objects（1）Train the students to use these verbs correctly:rush, realize, invite, show up, stay up．（2）Train the students’ writing skill．3．Moral ObjectsHave you ever had a similar Sunday with Ming? Tell your own story to your classmates．Ⅱ．Teaching Key Points1．Help the students have a self check on the key words and target language of this unit．2．Practise using these verbs: rush, realize, invite, show up, stay up．3．Review the new vocabulary introduced in this unit: homework, lock, costume, empty．4．Direct the students to write an article according to the pictures given．Ⅲ．Teaching Difficult Points1．Help the students make sentences with the verbs．2．Direct the students to write an article with the pictures given．Ⅳ．Teaching Methods1．Teaching by providing sample sentences．2．Teaching by describing the pictures．Ⅴ．Teaching AidJust the blackboard．Ⅵ．Teaching ProceduresStep I Revision1．Revise the contents in the three articles in Activity 3a on page 72 by asking the question below Questions（1）What did a radio program announce in 1938?（2）What had happened by the time the authorities revealed the story was a hoax?（3）What did a reporter announce on April Fool’s Day?（4）What had happened by the time people realized that the story was a hoax?（5）What did a famous TV star once do on April Fool’s Day?（6）What was the ending of the last story?2．Ask three different students to read the articles．3．Dictate the following words:announce, convince, panic, authority, reveal, spaghetti, describe, hoax, thrill, flee/fled/fled．Step ⅡPart 1This activity focuses on vocabulary introduced in the unit．Focus attention on the box．Invite a student to read the vocabulary words at the top．You are asked to fill in the blanks with the words．In some cases, you may need to use another form of the word, for example, adjusting for tense or subject/verb agreement．Ask students to fill in the blanks on their own．Check the answers．Five students each reads a sentence, filling in the blanks．The rest of the students check their work．Answers1．realized 2．rush 3．stay up 4．invite 5．show upAsk students to make their own sentences with the words, preferably sentences that are meaningful．Move around the room．Collect a few students’ answers with mistakes on the blackboard．Along with the students’ help correct the mistakes．Suggested answers1．As soon as the bell rang, the students rushed to the playground．2．By the time he got to the office he realized that he had locked all his keys at home．3．Mr．Green invited his good friends to have a big dinner at home last Sunday．4．We have to finish the task before the boss shows up．5．Jack stayed up very late last night．He couldn’t wake up on time this morning．Step ⅢPart 2This activity provides writing practice using the target language．Have the students look at the seven pictures．Tell the children that the pictures are connected to each other in an order．Ask: What is happening to Ming?Get the whole class to read the instructions．Then ask the students to describe each picture in order．Write some useful sentences on the blackboard．For example, for the first picture, help the students to say Ming wakes up at 10:00 and thinks she is late for school．The sentences can vary．After describing each picture, ask the students to write a story about Ming’s day on their own．Walk around the room offering language support if needed．After a while, ask a few students to tell the class about Ming’s day．Let the rest of the class help correct the mistakes that they may have made．Tell them to exchange their articles with their partners and help each other correct the mistakes．Ask the students to rewrite their articles to make the articles perfect after class．A sample answerMing woke up at 10:O0 o’clock in the morning．She thought that she must be late for school．So she got up and rode a bike to school was empty．She was the only one there．Then she realized that it was Sunday．Her good friend, Han Mei, came to see her after she had got home．Ming told Hah Mei the whole story happened in the morning earlier．It made Han Mei laugh a lot．Ming went to her grandparents’house with her parents．They had dinner together and talked happily．Ming watched TV in the evening and she went to bed at 10:00．Step ⅣPart 3This activity focuses on the new vocabulary introduced in this unit．Call the students’ attention to the box．Have them look at the four groups of words．Get the students to read the instructions together．Ask them to circle the words that don’t belong in each group．The first one has been given as a model．Ask some students to tell their answers to the class．Check the answers with the whole class．Answers1．homework 2．lock 3．costume 4．emptyStep ⅤJust for Fun!This activity provides reading and speaking practice with the target language．Call the students’ attention to the cartoon pictures．Tell them to see what happens．Ask the students to read the sentences under the pictures together．Then ask the children what is, funny about this cartoon．Help the students to answer like this: The boy saw the clouds and he felt the rain long before he got home．He should have realized much sooner that he had forgotten his umbrella．Step ⅥSummaryIn this class, we’ve practiced using some verbs and we’ve written an article based on the pictures given．At last, we enjoyed a funny cartoon．All of you have done very well!StepⅦHomework1．Revise all the language points in this unit．2．Finish off the exercises on pages 36～38 of the workbook．3．Make another more sentence with each verb below, rush, realize, invite, show up, stay up．4．Rewrite the article．Step ⅧBlackboard DesignUnit 9 By the time I got outside, thebus had already left．Self checkThe Sixth PeriodAnswers to Activity 1:1．realized2．rush3．stay up4．invite5．show upSample answers to Activity 1:1．As soon as the bell rang, the students rushed to the playground．2．By the time he got to the office, he realized that he had locked all his keysat home．3．Mr．Green invited his good friends to have a big dinner at home lastSunday．4．We have to finish the task before the boss shows up．5．Jack stayed up very late last night．He couldn’t wake up on time thismorning．。

Unit 9 When was it invented ?一、教学目标1、语言目标：（1）Talking about the history of inventions(谈论重要发明的历史及用途)（2）能用被动语态正确表达发明物的历史。

如：It was invented in 1876. It was invented by Bell.2、知识目标：学会使用含有被动语态的不同句型结构“When was it invented?” 和“Who was it invented by?”来谈论各种发明物的历史。

3、能力目标：通过了解一些中外发明者的事迹，培养勤奋学习、立志为社会多做贡献的精神。

二、重点知识1、重点单词invent, mistake, ancient, produce, pleasant, pie, throw, century, notice, including, knock, basket, metal, below, towards, develop, risen基本要求：会读、会写、会用。

2、重点短语be used for, by mistake, in the end, by accident, according to, fall into, in this way, knock into基本要求：会读、会写、会用。

3、重点语法The Passive Voice(被动语态的用法):1. When was / were ... invented?2. Who was / were ... invented by?3. What is / are ... used for?基本要求：理解其含义，学以致用。

三、导学案Section A●例析导学1. When was it invented?invent v. 发明，创造例如：He has invented a new way of making silk. 他发明了一种制造丝绸的新方法。