1、Unit 6 When was it invented?Section B 3aSelf Check九年级全一册 人教版Learning GoalsWarming UpWritingSummarySelf Check1 12345通过本课的学习，学生能够：介绍应用本单元重点语法被动语态和词汇短语写一篇文章介绍自己的新发明。巩固这一个单元学过的重点词汇和短语Learning GoalsWarming UpDo you know how to introduce an invention?inventionwhowhenwhywhathow.was/were invented by.in+年，月，
2、季节on+具体某一天It is used for.whowhenwhywhathowShen Nongaround 5,000 years agoby accidentbrown waternice fresh smelltradeput the tea into the cup,then pour the waterWho invented basketball?When was the first basketball game in history played?Why did he invent basketball?How to play basketball?What does b
3、asketball look like?3a.Think of something that you do not like to do.Then think of an invention that could help you.Make notes.Problem：_New invention：_What it is used for：_quickly taking notes in classa special pentaking notes in classWhy do you think people inventedare inventingare going to invent
4、so many things?Inventions make our life more convenient and better.Pre-writingRead 3b and tell what we are going to write today.主题：文体：人称：时态：介绍新发明说明文第三人称一般现在时开头：正文：结尾：引出话题，介绍自己发明了什么具体新发明（材料、功能）总结全文，推荐产品活动：I want to invent.1.在自备的纸上写下自己的名字，写一件自己想要去做的发明，同时根据以下问题写出该发明的相关信息，你也可以给自己的发明配图。What is it made of
5、?What is it used for?What does it look like?Where or when can it be used?How much will it cost?2.收集所写内容。然后请一名学生从申任意抽取一张，用It was invented by.,It looks like句型说出这是谁的发明和该发明外观像什么。其他同学用一般疑问句提问，猜测这项发明的价值、材料、作用等内容。Write a passage according to the information mentioned above.Pay attention to your spelling,gr
6、ammar and structure.While-writingPost-writingNow,you can exchange your writings with your partners to check each others writing.（钟文润 福建省福州华伦中学）Hello,everybody!Recently I have invented an amazing product called electronic suit with my imagination.Maybe it sounds strange,but I believe you will change
7、your mind after listening to my introduction.First of all,the suit is made of nano-materials,so theres no need to worry about being dirty easily.范文赏析开门见山，直入主题。过去分词做后置定语修饰product，表达高级Besides,I put some tiny high-tech products into it in order to control the temperature.With the help of computers,the
8、suit can change its temperature itself.Whats more,being very hard-wearing,the suit can help you save money.Last but not least,the suit has lots of colors,so you can choose your favorite color and it will look nice on you.There is no doubt that it will be your best choice if you want to buy a new sui
9、t.So dont hesitate,just try it!介绍段落用衔接词连接，富有条理，结构紧凑用there is no doubt that.句型宣传自己的发明，句式高级，表达有力1.Complete the passage with the correct forms of the words in the box.inventdoubtmentionwebsite all of a suddenIt is often difficult to decide on the inventor of certain inventions.This is because sometimes
10、 a few people may _ things which are almost the same.Its hard to tell who came up with the idea first.Some inventions can also lead to other inventions_.invent all of a sudden Self CheckSo some people _ whether the inventor came up with the idea himself or herself.They think that the inventor used s
11、omeone elses idea to create his or her invention.That is why books or _ usually _ more than one inventor when giving information about inventions.doubt websites mention 2.Rewrite these sentences using the passive voice.1.Someone stole my watch._2.They used five eggs to make this big cake._3.When did
12、 they invent the personal computer?_4.They asked us not to run in the hallway._5.Someone took the video back to the store._My watch was stolen by someone.Five eggs were used to make this big cake by them.When was the personal computer invented by them?We were asked not to run in the hallway by them.
13、The video was taken back to the store by someone.3.Find out information about an invention you would like to know more about and write sentences below.Invention：_When：_Who：_Purpose：_ in 2013umbrella with a lightLi Mengseeing in the rain in the dark 1.Writing:介绍一种发明2.复习本单元重点语法：被动语态Summary对应巩固练习见基础题与中考新考法
