When-was-it-invented市公开课一等奖课件名师大赛获奖课件

九年级新目的Unit9Whenwasitinvented?SectionA(1a-1c)尹立

1900年读作

eighteenOnine

1865年读作eighteensixty-five1998年读作nineteenninety-eightnineteenhundred1809年读作2000年读作twothousand2008年读作twothousandandeight（或twentyOeight）复习导入：Whichdoyouthinkisthemostimportantinventionintheworld?

TV?telephone?radio?computer?calculator?car?Inventions:Guessing:

WhatisthisinEnglish?Itisacar.Whenwasitinvented?Itwasinvented

.in1885carin1885WhatisthisinEnglish?

Itisatelephone.Whenwasitinvented?Itwasinventedin1876.telephonein1876When

was

it/werethey

invented?It

was/They

wereinvented

in1927.

TV(s)in1927Askandanswer:Whenweretheyinvented?Theywereinvented

calculators1971in1971.Whenweretheyinvented?They

wereinvented

computersin1976in1976.Task1:TalkaboutinventionsIthinkthecalculatorwasinventedbefore/after

thecomputer.1bListenandmatchtheinventionswiththedates.abedc18761885192719711976dabecadbec18761885192719711976A:Whenwasthe_______invented?B:Itwasinventedin______.Task2:1cGroupworkKarlBenz

inventedthecar.______wasinvented

by_______.ThecarKarlBenzWhoinventedthecar？Whowasthecarinventedby？KarlBenzTask3:Bell

invented

thetelephone.___________wasinvented

by___.ThetelephoneBellWhoinventedthetelephone？Whowasthetelephoneinventedby

？BellKarlBenz

inventedthecar.______wasinvented

by_______.ThecarKarlBenz观察与思考：Edison

invented

thelightbulb.Thelightbulbwasinvented

byEdison.Bell

invented

thetelephone.___________wasinvented

by___.ThetelephoneBellThepassivevoice.被动语态被动语态的构成:be动词+(及物动词的)过去分词

普通现在时普通过去时am(is,are)+donewas(were)+done{Thecarwasinventedin1885.Thepassivevoice.被动语态主动语态变被动语态的构造图:Bellinventedthetelephonein1876.ThetelephonewasinventedbyBellin1876.主语谓语动词过去时宾语时间状语主语谓语动词的过去分词宾语时间状语KarlBenzBellEdison.Whowas______inventedby?Itwasinventedby_________.KarlBenzpairworkthecarthetelephoneBellthelightbulbEdisoncarA:Whenwasthecarinvented?in1885B:Itwasinventedin1885.A:Whowasthecarinvented

by?B:Itwasinvented

byKarlBenz.KarlBenzTask4:Pairwork

练习与巩固：1.Edisoninventedthelightbulb.Thelightbulb_______________Edison.2.Allthestudentsliketheirteacher.Theirteacher________byallthestudents.3.AmericanspeakEnglish.English_____________American.4.Carswereinventedin1885.（划线部分提问）

cars

?

5.ThelightbulbwasinventedbyEdison.(划线部分提问）

wasthetelephoneinvented

?

wasinventedbyislikedisspokenbyWhen

wereinventedWho

by小结：Targetlanguage:1.Whenwasitinvented？Itisinventedin…2.Whowasitinventedby？Itwasinventedby…Grammar:普通过去时态的被动语态1.构成：was(were)+done（及物动词的过去分词）。2.主动语态变被动语态的环节：(1)把原主动句中的宾语转换为被动语态的主语.(2)把动词改为被动形式,即“be+过去分词”.注意be动词要按新的主语的人称和数进行变化,时态要和原来的主动语态的时态保持一致.(3)原来主动语态句中的主语,如果需要,就放在by背面以它的宾格形式出现.如果没有必要就能