九年级英语：Unit9_When_was_it_invented_Section_A2课时课件_人教版新目标[1].ppt

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1、When was it invented?What is/are used for?Its/Theyre used forA A:When When waswas the _ the _ inventedinvented?B:I think it B:I think it was inventedwas invented in in _._.Pairwork Pairwork(1c:P68)(1c:P68)19761885187619271971A A:What is the _ :What is the _ used for?used for?B B:It:It is used foris

2、used for _._.talking with people(talk with people)A A:What is the _ :What is the _ used for?used for?B B:It:It is used foris used for _._.(study)studyingA A:What is the _ :What is the _ used for?used for?B B:It:It is used foris used for _._.(count)countingWhat are they used for?They are used for giv

3、ing light.light bulbslight bulbsWho invented the car?_ invented the car.Karl Benz Karl BenzThe car_ _ by_.was invented him 1885When was it invented?was invented1971It_ _ in _.1971BellA:Who was the telephone invented by?B:It was invented by_.A:When was it invented?B:I think it was invented in _.alarm

4、 clock Its an annoying invention.Because it wakes me up when Im sleeping.I think computer is the most helpful invention.Because it helpsme search the information that I need.high heelsadjustable heelsadjustable 可调整的可调整的ice cream scoop heat 加热加热scoopslippersa batterybatteriesoperate 操作操作Who Who werew

5、ere they they invented invented by?by?What What are are they they used forused for?adjustable 可调整的可调整的operate 操作操作 heat 加热加热ListeningListeningListen and number the inventions in the order that you hear.2a312InventionWho was it/were they invented by?What is is/are they used for?shoes with adjustable

6、heelsChelsea Lanmonscooping really cold ice creambattery-operated slippers Jayce Coziar and Jamie Ellsworth seeing in the darkheated ice cream scoopJulie Thompsonchanging the style of the shoesListen again and fill in the blanks with the words you hear.2bA:What are those?B:They are battery operated

7、slippers.A:_ are they used for?What B:They _ _ for seeing in the dark.A:Thats cool!_ were they invented _?B:Julie Thompson.And look at this heated _ _ _.A:I know what its for.Its used for _ out really cold ice cream.are usedWho by coldicecreamscoopingB:Right.It _ _ by Chelsea A:My favorite are those

8、 shoes with _ heels.You know you can move the heels _and_updown.They were invented _ Jayce Coziarand Jamie Ellsworth.wasinventedadjustablebyB:And what are they used for?A:Well,you can change the _ of your shoes.You can _the shoes go from casual to dressy.Lanmonstylemakeshoes with adjustable heelsWha

9、t are they?Who were they invented by?Jayce Coziar and Jamie Ellsworthchanging the style of the shoes.What are they used for?Practice:battery-operated slippersJulie Thompsonseeing in the darkWhat are they?Who were they invented by?What are they used for?heated ice cream scoopChelsea Lanmonscooping co

10、ld ice creamWhat is it?Who was it invented by?What is it used for?用用“invented”或或“used for”填空填空.1.What are electric slippers _?2.Who were shoes with adjustable heels _ by?3.When was tea _?4.What are microwave ovens _?5.When were potato chips _?used forinventedused forinventedinventedA:Look!This looks

11、 so interesting!B:Ah,its a great invention of China.A:Really?When _ it _?B:I think it _ _ in Han Dynasty.(汉朝汉朝)A:What _ it _ for?B:Guess!A:_ it _ for holding water?B:No.It _ _ for testing earthquakes.A:Wow,its really amazing!wasinventedwas inventedisusedIsusedisusedabacusin the six centuryChinesecal

12、culatingWhat telescopeWhen 1609Who GalileoUse watching stars（The Passive Voice).主动语态与被动语态主动语态与被动语态：英语动词有两种语态英语动词有两种语态,即主动语态即主动语态(The Active(The Active Voice)Voice)与被动语态（与被动语态（The Passive Voice)The Passive Voice)。主动语态表示主语是动作的执行者主动语态表示主语是动作的执行者;被动语态表示主语是动作的承受者。被动语态表示主语是动作的承受者。e.g.1.They make trains in

13、 Zhuzhou.Trains are made in Zhuzhou.2.The farmers grow cotton every year.Cotton is grown by the farmers every year.主动语态主动语态被动语态被动语态主动语态主动语态被动语态被动语态e.g Many people speak English.English is spokenby many people.主动语态变被动语态的步骤：主动语态变被动语态的步骤：1 1、主动语态的宾语变为被动语态的主语；、主动语态的宾语变为被动语态的主语；2 2、主动句的谓语动词变为被动结构；、主动句的谓语

14、动词变为被动结构；3 3、主动句的主语变为被动句的宾语，由、主动句的主语变为被动句的宾语，由by by 引引出，当不强调动作的执行者时，常省略。出，当不强调动作的执行者时，常省略。4.4.其它成分不变。其它成分不变。变被动语态时需要注意的事项变被动语态时需要注意的事项一变一变二套二套三注意三注意宾变主，宾变主，主变宾，宾语前面主变宾，宾语前面byby跟，谓语动词变过分，不忘前跟，谓语动词变过分，不忘前面面bebe动词跟动词跟套时态，主被动时态一致套时态，主被动时态一致注意因人称的变化而引起的注意因人称的变化而引起的主谓一致问题。主谓一致问题。各种时态的被动语态的构成：各种时态的被动语态的构成：

15、1.一般现在时态一般现在时态 am,is,are+过去分词过去分词 2.一般过去时态一般过去时态 was,were+过去分词过去分词 3.一般将来时态一般将来时态 will/am.is.are going to +be+过去分词过去分词4.过去将来时态过去将来时态 would/was.were going to +be+过去分词过去分词 5.现在完成时态现在完成时态 have,has+been+过去分词过去分词 6.过去完成时态过去完成时态 had+been+过去分词过去分词 7.现在进行时态现在进行时态 am,is,are+being+过去分词过去分词 8.过去进行时态过去进行时态 was,

16、were+being+过去分词过去分词 9.9.含情态动词的含情态动词的 情态动词情态动词 +be+过去分词过去分词所有时态的被动语态否定就是在所有时态的被动语态否定就是在 最前面的助动词后加最前面的助动词后加 notnot疑问就是把疑问就是把最前面的助动词提前最前面的助动词提前。Many trees are not being planted nowAre many trees being planted now?把下列的句子变为被动语态的句子：把下列的句子变为被动语态的句子：1、They speak English in Canada .2、People used wood for mak

17、ing tables.3、They are making computers in the USA.English is spoken in Canada(by them).Wood was used for making tables.Computers are being made in the USA.把被动句变否定把被动句变否定Computers arent being made in the USA.4、They have grown rice in South China.5.We must plant more trees next year.6.I am going to cl

18、ean our classroom tomorrow.More trees must be planted next year.Our classroom is going to be cleaned tomorrow.Rice has been grown in South China.把被动句变疑问把被动句变疑问.Has rice been grown in South China？变被动语态的特殊情况变被动语态的特殊情况一、双宾语一、双宾语buy/make sb sth=buy/make sth for sbgive sb sth=give sth to sb1.My father bo

19、ught me a computer.A computer was bought for me by my father.I was bought a computer by my father.2.He gives me a book.A book is given to me by him.I am given a book by himSth+be+过去分词过去分词+for/to sb+by sb.Sb+be+过去分词过去分词 sth +by sb二、无二、无toto不定式不定式一感一感 二听二听三让三让 四看四看feellisten to.hearlet.have.makewatch.

20、see.look at.notice变为被动时加上变为被动时加上toeg.We often see him play basketball.He is often seen to play basketball by us.The boss made the children work for long.The children were made to workwere made to work for long by the boss.三、注意动词短语的三、注意动词短语的常考到的动词短语有常考到的动词短语有完整性完整性take care oflook afterlisten tospeak

21、 toeg.1.We should speak to the old politely.The old should be spoken tobe spoken to politely.2.The nurse takes good care of the baby.The baby is taken good care ofis taken good care of by the nurse.四、无被动语态的动词。四、无被动语态的动词。不及物动词及系动词不及物动词及系动词happentake placedierisecome truecome outeg.1.An accident (happ

22、en)just now.happened 2.Im sure that my dream .(come true)some day in the futurewill come true常用的被动语态短语常用的被动语态短语be made of from intobe used to do for doing as由由-制成的制成的看出原材料看出原材料看不出原材料看不出原材料原材料制成成品原材料制成成品be filled withbe covered witheg.1.Paper is made wood.from 2.Tables are made wood.3.Wood is made paper and tables.ofinto被用来-被用作被用作用-充满被-覆盖