Unit 6 When was it invented Section B (3a-Self check)写作课课件2022-2023学年人教版九年级英语全册 （共16张PPT）

1、Section B 3aSelf CheckUnit 6 When was it invented?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Warming up Inventions are everywhere in our life3a 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: _qu

2、ickly taking notes in classa special pentaking notes quickly3b Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.This special pen was invented by Liu Jie. It has three colors and is used for This special pen was invented by Liu Jie.

3、It has three colors and is used for taking notes quickly. It is very useful if you have a lot to write down. The pen comes with 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 memory, then assign a short form to ea

4、ch 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 and you can make changes to the list of words whenever you need to.Sample writingAs you pour i

5、n your hot drink, the color changes.Smart and creative inventionsYou can never chop your fingers off anymore. Its safe for young children to eat them. switch plug (断路插头)scooter carriage (滑板婴儿车)剥玉米器 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，并说明你对未来计算机的畅想。要求：1.意思连贯,语句通顺;

6、词数不少于80。 Computer_ 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 think computers are going to .Computer Computers are becoming more and more important in our daily life. Do you know when the

7、 computer was invented ? The computer was invented in 1946. At that time , it was 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. For e

8、xample , 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 computers. I think comp

9、uters will be more convenient and they are going to change our life completely in the near future.【参考范文】Self check1.Complete the passage with the correct form of the words in the box.invent doubt mention website all of a suddenIt is often difficult to decide on the inventor of certain inventions. Th

10、is 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 _. So some people _ whether the inventor came up with the idea himself or herself. They think that the inventor used someone

11、 elses idea to create his or her invention. That is why books or _ usually _ more than one inventor when giving information about inventions.inventall of a suddendoubt websites mention1. Someone stole my watch.2. They used five eggs to make this big cake.3. When did they invent the personal computer

12、?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.When was the personal computer invented?We were asked not to run in the hallway.The video was taken back to the store (by someone).2. Rew

13、rite these sentences using the passive voice.3. Find out information about an invention you would like to know more about and write sentences below. Invention:When:Who:Purpose:. 填空。The first paper _ (make) in China in 105 AD.For over 500 years the art of making paper _ (limit) to China.In 610, paper

14、making _ (introduce) into Japan.Kites _ (know) in China about 3,000 years ago.5. Wheelbarrows _ (invent) in the Han Dynasty.6. Gunpowder _ (discover) by the Chinese hundreds of years ago.7. Soccer _ (develop) in England in the 12th century.was made was limited was introduced were knownExerciseswere

15、invented was discovered was developed .用所给词的适当形式填空。1. Now computers are widely used in our _ (day) lives.2. He mentioned _ (hear) from her often.3.The soup is very _ (salt) because my mother put lots of _ (salt) on it.4. Since then, the _ ( popular ) of basketball has risen quickly.5. I have worked here for _(near) two years.dailyhearingsaltysaltpopularitynearly. 完成句子。1. 在200多个国家中，超过一亿人打(篮球)，包括中国。_ _ _ by _ _ 100 million people in over 200 countries including China. 2. 篮球是由加拿大一位叫詹姆斯奈史密斯的博士发明的。Basketball _ _ _ a Canadian doctor named James Naismith.