1.1 Unit 4 Inventions and Inventors 每课一练(北师大版九年级全册)

( 英语教案 )学校：_________________________年级：_________________________教师：_________________________教案设计 / 精品文档 / 文字可改九年级英语：Unit 4 Inventions and Inventors(教学方案) Learning English is conducive to making friends, chatting or working together with foreigners, and learning English is very useful for traveling abroad.九年级英语：Unit 4 Inventions andInventors(教学方案)unit 4 inventions and inventors【本讲教育信息】一. 教学内容：book 15 unit 4 (i)学会用动词的被动语态描述物体的使用方法，构成成份和功能作用。

二. 教学重点：1. 动词一般现在时被动语态。

2. 动词一般过去时被动语态。

3. 动词一般将来时被动语态。

4. 情态动词的被动语态5. 重点词汇三. 具体内容：（一）被动语态是动词的一种特殊形式，表示句子中的主语是动词的承受者，也就是动作的对象。

一般说来，只有需要动作对象的及物动词才有被动语态。

被动语态的用法：1）当我们不知道谁是动作的执行者时，或者没有必要指出谁是动作的执行者时，e.g. printing was introduced into europe from china.a new bridge will be built here next year.2）当我们关心动作的承受者但也关心动作的执行者时，用by 加动作的执行者。

e.g. the town was destroyed by an earthquake.英语动词的被动语态由助动词be+及物动词的过去分词构成。

授课时间：12.20Unit 4 Inventions and Inventors Roundup 4教学目标：1. 知识目标：1）复习动词的一般现在时，一般过去时，一般将来时的被动语态及带有情态动词的被动语态的构成和用法。

2）复习短语be made of和be made from；be used for和be used by在被动语态中的不同含义，要求学生口头和笔头掌握。

2. 能力目标：1）能口笔头对物体成份，功能，用途进行简单描述。

2）能读懂常用物品的简单功能，成份和使用说明。

3）能写出含有被动语态的句子和简单文段。

3.文化意识：了解历史上中外的重大发明及发明者对中外文化发展的影响及作用。

对比中文和英文在表达被动语态时的异同。

4.学习策略：通过观察、理解、归纳，运用的过程发现语言规律，并利用语言规律解决实际问题，培养学生自主学习的能力。

教学内容：1. 话题：Inventions2. 词汇：be made of, be made from; be used for, be used by.3.语法：复习一般现在时，一般过去时，一般将来时的被动语态及带有情态动词的被动语态的构成和用法。

教学重点：复习被动语态的用法。

教学用具：录音机，课件，多媒体教学步骤：I.Lead inStep1 教师设置问题导入本课内容：T: In Unit4, we have learned a lot of inventions. Do you remember them? Who can tell us some of them？S: 学生先说出学过的几个发明。

T: Let me show you some pictures.Step2 教师在投影上打出一些图片，帮助学生回忆本单元的词汇，教师提示：T: Let’s read them togetherS:学生集体朗读词汇。

( fridge, microwave oven, photocopier, gunpowder, kite, tea-drinking, wheelbarrow)(bulb, keyboard, plane, train, typewriter, )II.Review Passive V oice:1．复习被动语态的结构和意义：Step1. 复习含有被动语态的句子1)T: Match the pictures with correct sentences.The food is heated in the oven.Paper was made in China in 105 AD.Very few people will be killed by future cars.Milk should be kept in the fridge.2)T: Check the answers:S: 教师要求学生根据图片选择句子。

Unit 4 I nventors and inventions 学案【背景知识】Inventing is a scientific activity because it uses the same procedures as scientific experiments. It is also a creative activity. So to be a good inventor you need to be imaginative as well as disciplined in your approach. Inventing has been a part of human life as long as humans have been on earth. If you go into a history museum, you will see the stone axes, pots and fishing hooks, which were the inventions of our ancestors. Each is the result of successful experiments by early man into problems, such as how to cut down trees, cook and store food and water or catch fish. Many objects that we have around us today are similar modern inventions:·The mobile phone solves the problem of how to contact someone while you are on the move.· The television solves the problem of how to spread news and entertain people at home.· The washing machine helps us keep our clothes clean and lighten our work.So inventors and inventions are not new and each one answers a particular need or solves a problem.The First Period Warming up & SkimmingⅠ. Warming upTask 1 Look at the pictures below and discuss in pairs which pictures show inventions and which show discoveries.An amphibious car Stephenson’s“Rocket〞DNA_______________ __________________ ________________Task 2 Work out the rules that will help you decide what a discovery is and what an invention is A discovery is __________________________________________________________________. An invention is _________________________________________________________________.Task 3 Have a look at the following modern inventions and try to explain how they changedⅡ. SkimmingTask 1 Do you know the stages every inventor must go through before they can have their invention approved Inventing is a scientific activity and so follows similar stages to those used in research. Work out a suitable order.1. Applying for a patent ( )2. Finding a problem ( )3. Doing research ( )4. Testing the solution ( )5. Thinking of a creative solution ( )6. Deciding on the invention ( )Task 2 Skim the whole passage and get the main idea.The text narrates _________________________ and presents _____________________________ and applying for _____________________.Task 3 Divide the passage into several parts and find out the main idea for each paragraph.Part 1(para.1): _________________________________________________________________ Part 2(para.2-3): _______________________________________________________________ Part 3(para.4-6): _______________________________________________________________Part 4(para.7-8): _______________________________________________________________Task4 SummaryWhat have you learnt in this period1. I have learnt the following new words:______________________________________________2. I have learnt these useful expressions:______________________________________________3. I have learnt to talk about:________________________________________________________Task5 HomeworkFind out beautiful sentences and phrases you like most in the text.1.___________________________________________________________________________2.___________________________________________________________________________3.___________________________________________________________________________Teaching/Learning reflection:_______________________________________________________________________________ _______________________________________________________________________________The Second Period Reading & Language PointsⅠ. Share the sentences you like most with your partners.Ⅱ. ReadingTask 2 Read the text carefully and choose the best answer.1. How did the writer catch the snakes ( )A. using something the snakes were interested to attract them into a trap.B. taking their habitat to another place.C. placing the snakes at a low temperature for them to sleep and then caught them.D. All the above.2. The writer was successful to catch the snakes in ________ attempt.A. the firstB. the secondC. the thirdD. every3. The following are used in the three attempts EXCEPT ________.A. perfumeB. a bowlC. jellyD. ice-cubes4. Why did cooling the snakes make them less active ( )A. Because snakes are warm-blooded animals.B. Because snakes like high temperature.C. Because snakes are reptiles and their body temperature depends on the heat around them.D. None of the above.5. Which of the following may get a patent according to the text ( )A. A computer programme.B. A new animal variety.C. A work of literature.D. A truly novel and useful invention.6. The purpose in writing this text is ________.A. to show us how to trap the snakes but not to kill themB. to tell people how to apply for a patent of the writer's new ideaC. to introduce the writer's new idea of trapping the snakes and her application for a patentD. to tell the readers how to get a new idea and make it a patent7. The biggest advantage of the writer's new idea is that ________A. it makes the snakes move slowlyB. it makes the snakes hardly bite usC. it is easier for us to kill the snakes without hurting ourselvesD. it is easier for us to catch the snakes without killing them8. Which statement is true according to the text ( )A. The snakes were so sleepy in the second attempt that they couldn't bite the writer at all.B. Your product must be different from everybody else's if you want to receive a patent.C. The writer decided to send her invention to the patent office the moment she succeeded incatching the snakes.D. If an application for your product proves to be valid, you can get a patent immediately.Task 3Read and answer the questions.1. What was the mother upset about2. Why was the writer happy to help her mother3. Why did cooling make the snakes less activeTask 4 SummaryFill in the blanks according to the text.1______the writer called up her mother in the country on the phone, she learned that snakes came near their house and that the snakes seemed 2______ (make) their home near their house. The writer felt proud and considered 3______a chance for her to distinguish 4______by inventing something 5______would catch snakes but not harm them. She set about 6______ (research) the habits of snakes. She decided to cool them so that they could be 7______ (easy) caught. However, her first two plans were not successful. As a result, she had to attempt a 8______time, which helped her fulfill her aim successfully. She was 9______delighted that she was determined to send her 10______ (invent) to the patent office to get recognition for her successful idea.Ⅲ. Homework1. Review and retell the text.2. Discuss with your partner what the advantages might be of getting a patent.Ⅳ. Language pointsTask 1 Let us learn some useful expressions!1. Here was a chance for me to distinguish myself by inventing something merciful that would catch snakes but not harm them.这回我有时机来表现自己,我要创造某种东西,既可以把蛇捉住,而又不会伤害它们。