unit9 Section A-1.ppt

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1、Unit9Whenwasitinvented?SectionAPeriod1(1a2c）Makealistofinventionsyouknow.ephonecarTVcomputerWhoinventedthetelephone?Whowasthetelephoneinventedby?Bellinventedthetelephone.ItwasinventedbyBell.1bListenandmatchtheinventionswiththedates._1876_1885_1927_1971_1976daecbReadthefollowingconversation.Makeasimi

2、larconversationwithyourpartner.PairworkPairworkA:WhatsthiscalledinEnglish？B:ItscalledaTV.A:Isitaninvention?B:Yes,itis.A:WhenwastheTVinvented?B:Itwasinventedin1926.A:Whowasitinventedby?B:ItwasinventedbyBaird.T:WhatsthiscalledinEnglish?S:Itscalledatelephone.T:Isitaninvention?T:Whenwasthetelephoneinven

3、ted?S:Itwasinventedin1876.T:Whowasitinventedby?S:ItwasinventedbyBell.S:Yes,itis.heelbatteryscoopTheheelisadjustable.Sheisscoopingbyusingthescoop.3212aListenandnumbertheinventionsintheorderthatyouhearthem.2bListenagainandmatchtheitemsincolumnsA,BandC.changingthestyleofashoeJulieThompsonheatedicecream

4、scoopseeinginthedarkJayceCoziarandJamieEllsworthbattery-operatedslippersscoopingreallycoldicecreamChelseaLanmonshoeswithadjustableheelsWhatisit/weretheyusedfor?Whowasit/weretheyinventedby?inventionABC2cPairWorkRoleplayconversationsusingtheinformationinthechartabove.A:Whataretheyusedfor?B:Theyreusedf

5、orseeinginthedark.beusedfor.被用来被用来是由是由“usesth.forsth./doingsth.”结构转变而来结构转变而来,介词介词for在这里表示用途或作用在这里表示用途或作用,后面可以接名词、后面可以接名词、代词或动词代词或动词-ing形式。形式。Thismachinecanbeusedforcuttinggrass.这个机器可以被用来割草。这个机器可以被用来割草。beusedas意为意为“被用作为被用作为，被作，被作为为使用使用”EnglishisusedasaforeignlanguageinChina.beusedby意为意为“被被使用使用”Rubber

6、sareusedbythestudentstocorrectmistakes.链接链接:usedtodosth.意为意为“过去常常做某事过去常常做某事”。IusedtosmokewhenIwasyoung.usesth.todosth.意为意为“使用某物来做某事使用某物来做某事”,其被动结构为其被动结构为“sth.beusedtodosth.”。Theseknivesareusedtocutpies.根据句意和所给汉语提示根据句意和所给汉语提示,完成下列单词的正确拼完成下列单词的正确拼写。写。1.Thatsthemost_(有用的有用的)book.2.ItissaidthatThomasEdi

7、sonhad1,093_(发明发明)duringhislifetime.3.Whatisthiskindofmachineusedfor?Itsusedfor_(听听)tomusic.4.Ifyou_(加热加热)theice,itwillsoonbecomewater.5.Childrenalsoneedtime_(玩耍玩耍).usefulinventionslisteningheattoplay被动语态被动语态(PassiveVoice)结构结构:be+V-p.p.am/are/is+动词的过去分词动词的过去分词was/were+动词的过去分词动词的过去分词一般现在时的被动语态一般现在时的被

8、动语态:一般过去时的被动语态一般过去时的被动语态:Weboughtsomebooks.主动句与被动句之间的转换主动句与被动句之间的转换Somebookswerebought(byus)主语主语谓语动词主动语态的过去式谓语动词主动语态的过去式宾语宾语主语主语谓语动词被动语态的过去分词谓语动词被动语态的过去分词介词介词+宾语宾语主动句变为被动句所遵循的主动句变为被动句所遵循的4个步骤：个步骤：1.1.把原主动句中的宾语变为被动句的主语。把原主动句中的宾语变为被动句的主语。2.2.把动词变为被动形式即把动词变为被动形式即be+be+过去分词，并注意过去分词，并注意其人称和数随主语的变化，而动词的时态

9、则其人称和数随主语的变化，而动词的时态则保持不变。保持不变。3.3.原主动句的主语如需要则放在原主动句的主语如需要则放在byby后面以它后面以它 的宾格形式出现（注代词的宾格），如不需要则的宾格形式出现（注代词的宾格），如不需要则可省略。可省略。4.4.其它的成分（定语、状语）不变。其它的成分（定语、状语）不变。被动语态的几种句型被动语态的几种句型肯定句肯定句主语主语+be+过去分词过去分词+(by)Asweetsongwassungbyheronthestage.2否定句否定句主语主语+be+not+过去分词过去分词+(by)3一般疑问句一般疑问句Be+主语主语+过去分词过去分词+(by)?

10、Asweetsongwasntsungbyheronthestage.Wasasweetsongsungbyheronthestage?4特殊疑问句特殊疑问句疑问词疑问词+be+主语主语+过去分词过去分词+(by)?Wherewasasweetsongsungbyher?用所给动词的适当形式填空。用所给动词的适当形式填空。1.Thepizzawas_(make)byme.Wouldyouliketohavesome?2.TheGreatWallis_(know)allovertheworld.3.Thisstorywas_(tell)bymygrandmotherlastnight.4.Was

11、anewsciencemuseum_(build)inyourhometownlastyear?5.Nostudentis_(see)intheplayground.madeknowntoldbuiltseen1.Hewroteanarticlelastweek.Anarticlewaswrittenbyhimlastweek.2.Thepeoplemakehistory.Historyismadebythepeople.把下列的主动句变为被动句。把下列的主动句变为被动句。3.DopeopleuseChineseonlyinChina?IsChineseusedbypeopleonlyinChina?4.Theydidntvisitthecitytwoyearsago.Thecitywasntvisitedbythemtwoyearsago.5.Wheredidyoumakethem?Whereweretheymadebyyou?