九年级英语when was it invented课件183739.ppt

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1、Unit9 when was it invented九年级英语全册A:Do you have a computer now?B:Yes,I have.A:Did people have a computer 40 years ago?B:I think they hadnt.A:I think the telephone was invented before the car.B:Well,I think the telephone was invented after the car.invent 发明，创造发明，创造sweet 甜的甜的salty 咸的咸的crispy 脆的脆的sour 酸

2、的酸的potato 土豆土豆chip 片片mistake 错误错误by mistake 错误地错误地thin 薄的，细的薄的，细的 Wordsin the end 最后，终于最后，终于chef 厨师厨师sprinkle 撒（粉末状物）；洒（液体）撒（粉末状物）；洒（液体）abacus 算盘算盘century 世纪世纪telescope 望远镜望远镜camera 照相机照相机 WordsA:When was the telephone invented?B:I think it was invented in 1876.年代（年代（1876）Listen and match the invent

3、ions and the dates.Listening_ 1876_ 1885_ 1927_ 1971_ 1976 daecb SpeakingAsk and answer with the pictures.A:When was the telephone invented?B:I think it was invented in 1876.Find out when these things were invented,and then write them down.Writing16 century,in China about 4,000 years ago in Assyria,

4、China and Egypt WritingBinoculars:1854 Ignatio Porro in ItalyCamera:1827 by Joseph Nicephore Niepce who took the first pictureBicycle:1880s in EnglandFind out when these things were invented,and then write them down.When was the car invented?It was invented in 1885.When were electric slippers invent

5、ed?They were invented last year.Who were they invented by?They were invented by Julie Thompson.What are they used for?Theyre used for seeing in the dark.被被动动语语态态(passive voice)：1基本概念：被动语态是动词的一种特殊基本概念：被动语态是动词的一种特殊形式，表示句子中的主语是动作的承受者，形式，表示句子中的主语是动作的承受者，一般来说，只有及物动词才有被动语态。一般来说，只有及物动词才有被动语态。2 结构：结构：be+p.p

6、例如：例如：English is spoken in Britain,the U.S.and some other countries.讲英语的国家有英国、美国和其他一些国家。讲英语的国家有英国、美国和其他一些国家。His leg was broken in an accident.他的腿在一次事故中折断了。他的腿在一次事故中折断了。Write them under the correct pictures.sweet salty crispy sour salty sour sweet sweet Write the name of a different food after each w

7、ord.sweetcrispysaltysourapple,orange,cake,honey French fried,salad,lettuce French fried,olives,pizza,popcorn Pickle,grapefruit Listen and circle T(for true)or F(for false).Listening1.The potato chips were invented by mistake.T F2.They were invented in 1863.T F3.The customer thought the potatoes were

8、nt thin enough.T F4.The customer said they werent salty enough.T F5.George wanted to make the customer happy.T F6.The customer was happy in the end.T F Listen and complete the sentences.ListeningThe history of chips _ that potato chips were invented by mistake?Chips _.By a chef called George Crum.Th

9、ey were invented in _George Crum cooked them for a long time until they _.And he sprinkled lots of salt on them so they were _.Did you know were invented 1853 were crispy really salty WritingFill in the blanks with the word given.crisp sweet salty sour1.I dont like eating chocolate.The taste is too

10、_.2.Mom added salt but it still wasnt _ enough.3.I prefer lemons to oranges.I like the _ taste.4.She likes _ cookies.They are hard,dry and easily broken.sweet salty sour crispy SpeakingMake a conversation using the information from the activities above.A:Did you know potato chips were invented by mistake?B:Wow,I didnt know that.Who invented them?A: