人教版九年级上册英语-unit6-第6课时(sectionB-3a-selfcheck)课件2.ppt（纯ppt,不包含音视频素材）

1、Unit 6 When was it invented?Section B 3a-self check学习目标：1,复习整个单元的单词、短语、重点句型及语法要点。2,结合本单元的主要语言结构进行写作练习，提升英语写作能力。3,完成导学案过关检测3avThink of something that you do not like doing.Then think of an invention that could help you.Make notes.vProblem:quickly taking notes in classvNew invention:a special penvWhat

2、 it is used for:It can listen to the writer and write by itselfvPrice:WritinginventionHave you ever come across any difficulties in your daily life?I am not able to take notes quickly in class.Its very hard for me to get up early.Im worried about my everyday homework.Can we invent something new to s

3、olve those difficulties?Think of something that you do not like to do.Then think of an invention that could help you.Make notes.Problem:quickly taking notes in classNew invention:a special penWhat it is used for:taking notes for me It can take notes automatically.3aProblem:getting up earlyNew invent

4、ion:a special clockWhat it is used for:waking me up It can call me up with the voice of my teacher.Problem:doing homeworkNew invention:a robotWhat it is used for:doing homework with me It can be my favorite homework partner.Now its your turn!Imagine you are a business person.Write a description of y

5、our 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 for3bThis special pen was invented by Liu Jie.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 wit

6、h a microchip（芯（芯片）片）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 each word.When you are writing,you just need to write the short forms with the pen,press a button on the pen and all the sh

7、ort forms will change into the actual words.The microchip can contain nearly 50 words and you can make changes to the list of words whenever you need to.Sample writing:Writing examples:v My favorite invention (laptop)思路点拔 开门见山,引出观点-my favorite 说明手提电脑的特点-light and small,easy to carry,very useful,get

8、the latest information,keep in touch with,mail and chat 总结上文,展望前景-most useful,in the future,everyone will have his or her laptop经典范文 Laptops were invented many years ago.They are my favorite invention.Laptops are light and small.They are easy to carry.With a laptop we can work,study and entertain at

9、 any time.Laptops make us get the latest information wherever we go.They are also used for keeping touch with our best friends and families.Especially,they are also used for mailing and chatting anywhere and anytime.I think laptops are the most useful invention.In the future,I think everyone will ha

10、ve his or her own laptop.将有将有6位同学扮演位同学扮演“推销商推销商”上台向同学们上台向同学们“推销推销”自己的发明，台下的每位同学都有自己的发明，台下的每位同学都有一票选择权，得票最多的一票选择权，得票最多的“推销商推销商”获胜。获胜。（注：在（注：在“推销推销”发明时需全程使用英语）发明时需全程使用英语）Play a game谁的发明最畅销？！我们在推销一件产品的时候，通常会从哪几我们在推销一件产品的时候，通常会从哪几个方面去描述呢？个方面去描述呢？Invention What is the invention?What is it used for?Who in

11、vented it?When was it invented?Talk about itA:This special pen was invented by Zheng Jie.It has three colors and it is used for learning English.B:How is it special?A:When the red color is turned on,the pen reads out English as it is moved along the line.B:What about the black color?A:When the black

12、 color is turned on,the pen finds out the structure of the sentences as it is moved along the line.B:What about the yellow color?A:When the yellow color is turned on,the pen shows the formation and meaning of the word as it is moved along the line.B:Wonderful!Where can I get one?A:I am the shop owne

13、r selling this kind of pen.3b Imagine you are a businessperson.Write a description of your new invention.Try to sell the invention to the class.Your time to write This special pen was invented by Liu Jie.It has three colors and is used for Self-check Complete the passage with the correct forms of th

14、e words in the box.vinvent doubt mention website vall of a suddenIt is often difficult to decide on the inventor of certain inventions.invent doubt mention nearly website all of a suddenThis is because sometimes a few people may _things which are _the same.Its hard to tell who came up with the idea

15、first.Some inventions can also lead to other inventions _.So some people _ whether the inventor came up with he 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 a

16、bout inventions.inventdoubtmentionnearlywebsitesall of a sudden一般一般过去过去时的时的 被动语态被动语态 Passive voice for past tense主语主语是动作的是动作的承受者承受者。一般一般疑问句疑问句 特殊特殊疑问句疑问句陈述句陈述句不及物不及物动词动词没有没有被动语态。被动语态。VerbsPast tensePast participlesweepsweptsweptbuybought boughtstealstolestolentaketooktakenuseusedusedaskaskedaskedinv

17、entinventedinvented主动语态主动语态：We swept the floor every day.被动语态被动语态：The floor主语主语主语主语谓语谓语宾语宾语谓语谓语宾语宾语单宾语陈述句单宾语陈述句was swept by usevery day.was/were+was/were+及物动词及物动词过去分词过去分词1.Someone stole my watch.My watch was stolen by someone.P48 Self-check2陈述句型陈述句型was/were+was/were+及物动词过去分词及物动词过去分词4.They asked us n

18、ot to run in the hallway.We were asked not to run in the hallway by them.5.Someone took the video back to the store.The video was taken back to the store by someone.2.They use five eggs to make this big cake.Five eggs were used to make this big cake by them.P48 Self-check2was/were+was/were+及物动词过去分词及

19、物动词过去分词双宾语陈述句双宾语陈述句如遇双宾语，最好变间宾。如遇双宾语，最好变间宾。如若变直宾，如若变直宾，to/forto/for间宾前。间宾前。My father bought me a basketball.I was bought a basketball by my father.A basketball was bought for me by my father.间接宾语间接宾语直接宾语直接宾语Did someone steal my watch?Was my watch stolen by someone?P48 Self-check 一般一般疑问句型疑问句型be(was/w

20、ere)be(was/were)提到提到主语主语前前3.When did they invent the personal computer?When was the personal computer invented by them?P48 Self-check2 特殊特殊疑问句型疑问句型 特殊疑问词特殊疑问词 +一般疑问句一般疑问句Innovation distinguishes between a leader and a follower.领袖和跟风者的区别就在于创新。-Steve P.(aul)Jobs 史蒂夫乔布斯InventionWhat:When:Who:Purpose:Fi

21、nd out information about an invention you would like to know more about and write sentences.P48 Self-check3Mobile phonecommunicatingwith others freely1973Martin CooperInventionWhat:When:Who:Mobile phone1973Martin CooperId like to know more about mobile phones.They were invented in 1973.They were inv

22、ented by Martin Cooper.know more aboutbe used forPurpose:communicating with others freelyThey were used for communicating with others freely.Innovention TV car plane.WhoJohn Logie BairdKarl Friedrich BenzBrother Wright.When192518861946.Purposehelping us to get to know the worldmaking our life more convenienthelping us to travel from long distance.