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1、R九年级上册,Unit 6 When was it invented?,Section B 3aSelf Check,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,Review,一般过去时被动语态,一般过去时的被动语态表示过去某一时刻发生的被动性动作，其基本结构为： 主语+ was / were + 过去分词+ by . 翻译：他们两年前看过这位老师。 The teacher was visited by them two years ago.,状元
2、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,主动变被动解题步骤：,1. 找宾语 ,2. 判断宾语的单复数 ,3. 判断动词的时态 ,4. 修改谓语的时态 ,5. 修改原句的主语 ,即动作的承受者,即be动词的单复数,即be动词的时态,即原句动词改为过去分词,即by + 主语/ 宾语,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元
3、成才路,状元成才路,be要随着主语变 逻辑主语by来引,1. Tom broke the window. The window was broken by Tom. 2. He broke the windows. The windows were broken by him.,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,3a,Think of something that you do not like to do. Then think of
4、an invention that could help you. Make notes., Problem: _ New invention: _ What it is used for: _,quickly taking notes in class,a special pen,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,Imagine you are a business person. Write a description of your
5、 new invention. Try to sell the invention to the class.,3b,This special pen was invented by Liu Jie. It has three colors and is used for,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,This special pen was invented by Liu Jie. It has three colors and i
6、s used for taking notes quickly. It is very useful if you have a lot to write down. The pen comes with(自带) a microchip that can store a list of common words that you will use. You can program the words you will use often into the microchips,Sample writing,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元
7、成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,memory, then assign(分配) a short form to each word. When you are writing, you just need to write the short forms with the pen, press a button on the pen and the short forms will change into the actual words. The microchip can contain up to 50 words
8、and you can make changes to the list of words whenever you need to.,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,As you pour in your hot drink, the color changes.,Color changing cup,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状
9、元成才路,状元成才路,状元成才路,状元成才路,状元成才路,Smart and creative inventions,Its then safe for young children to eat the fruit.,Its convenient.,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,计算机在我们的生活、工作中的作用越来越大，你知道计算机的起源与发展吗？请结合计算机的发明时间(1946年）、外形、用途等方面，谈一下它的发展变化，并说明你对
10、未来计算机的畅想。 要求：1.意思连贯，语句通顺；词数不少于80。,练一练,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,这是一篇事物介绍类的说明文，根据题目提示可考虑采用下面的模板。,计算机,引出话题,介绍发明,畅想未来,. important in our daily life.,时间:The computer was invented in . 外形：. was huge. 用途:send some messages . open .,I th
11、ink computers are going to .,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,Computer Computers are becoming more and more important in our daily life. Do you know when the computer was invented? The computer was invented in 1946. At that time, it was
12、huge. With the development of science and technology, the computer has grown smaller. Now there are many kinds of computers, such as personal computers and laptops. The computer is a very useful tool in our life.,【参考范文】,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元
13、成才路,状元成才路,状元成才路,For example , it can send some messages to foreign friends by e-mail. Whats more, it can share information with others through the World Wide Web. We can also listen to music or play the game on computers. It makes us relax. Its hard to imagine what our life would be like without com
14、puters. I think computers will be more convenient and they are going to change our life completely in the near future.,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,Self Check,1 Complete the passage with the correct forms of the words in the box.,inv
15、ent doubt mention website all of a sudden,It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may _ things which are nearly the same. Its hard to tell who came up with the idea first. Some inventions can also lead to other inventions,invent,状
16、元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,_. So some people _ whether the inventor came up with the idea himself or herself. They think that the inventor used someone elses idea to create his or her invention. That is why books or _ usually _ more than one inventor when giving information about inventions.,all of
