R九年級(jí)上冊(cè)SectionB（3a-3b）單元同步作文指導(dǎo)Unit6Whenwasitinvented?復(fù)習(xí)：一般過(guò)去時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)單元語(yǔ)法SelfCheck1Completethepassagewiththecorrectformsofthewordsinthebox.

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websiteallofasuddenItisoftendifficulttodecideontheinventorofcertaininventions.Thisisbecausesometimesafewpeoplemay________thingswhicharealmosttheinventsame.It’shardtotellwhocameupwiththeideafirst.Someinventionscanalsoleadtootherinventions____________.Sosomepeople________whethertheinventorcameupwiththeideahimselforherself.Theythinkthattheinventorusedsomeoneelse’sideatocreatehisorherinvention.Thatiswhybooksor________usually________morethanoneinventorwhengivinginformationaboutinventions.allofasudden

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Thisisbecause...

這是因?yàn)椤?/p>

考向系動(dòng)詞之后是表語(yǔ)，表語(yǔ)是由一個(gè)句子充當(dāng)?shù)?，即稱(chēng)為表語(yǔ)從句，連接表語(yǔ)從句的詞有：because，why，that，what，who，when，where，which，whether，how等。講解來(lái)自《點(diǎn)撥》知識(shí)點(diǎn)eg：Allthecarsaregoingslowly.Thisisbecausethereisathickfog.所有的車(chē)都開(kāi)得很慢，這是因?yàn)橛袧忪F。Hisbikewasbroken.Thatiswhyhecametoschoolonfoot.他的自行車(chē)壞了。那就是他步行來(lái)學(xué)校的原因。講解來(lái)自《點(diǎn)撥》典例Youhavespenttoomuchtimeplayingcomputergames.That’s________youreyeshurt.(濰坊)A．why

B．howC．what

D．when【點(diǎn)撥】句意：你花費(fèi)了太多的時(shí)間玩電子游戲，那就是你眼睛疼的原因。That’swhy...那是……的原因。

A講解來(lái)自《點(diǎn)撥》SelfCheck2Rewritethesesentencesusingthepassivevoice.1．Someonestolemywatch._______________________________________2．Theyusedfiveeggstomakethisbigcake.____________________________________________3．Whendidtheyinventthepersonalcomputer?_____________________________________________Mywatchwasstolenbysomeone.

Fiveeggswereusedtomakethisbigcakebythem.

Whenwasthepersonalcomputerinventedbythem?

4．Theyaskedusnottoruninthehallway._______________________________________________5．Someonetookthevideobacktothestore._______________________________________________Wewereaskednottoruninthehallwaybythem.

Thevideowastakenbacktothestorebysomeone.Lead-in

Inventionsareeverywhereinourlife

Inventionsareeverywhereinourlife

Inventionsareeverywhereinourlife3aThinkofsomethingthatyoudonotliketodo.Thenthinkofaninventionthatcouldhelpyou.Makenotes.?Problem:__________________________Newinvention:__________________Whatitisusedfor:______________quicklytakingnotesinclassaspecialpenImagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.3bThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor…Imagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.

3bThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor...eg：ThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfortakingnotesandcorrectingmistakes.Itisverycheap.Itiseasytotake.Itismadeofplasticsoit'snotheavy.Doyouwanttobuyit?寫(xiě)作：典例導(dǎo)引計(jì)算機(jī)在我們的生活、工作中的作用越來(lái)越大，你知道計(jì)算機(jī)的起源與發(fā)展嗎？請(qǐng)結(jié)合計(jì)算機(jī)的發(fā)明時(shí)間(1946年）、外形、用途等方面,談一下它的發(fā)展變化，并說(shuō)明你對(duì)未來(lái)計(jì)算機(jī)的暢想。要求：1.意思連貫,語(yǔ)句通順;2.詞數(shù)不少于80。

Computer____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________這是一篇事物介紹類(lèi)的說(shuō)明文，根據(jù)題目提示可考慮采用下面的模板。計(jì)算機(jī)引出話(huà)題介紹發(fā)明暢想未來(lái)...importantinourdailylife.時(shí)間:Thecomputerwasinventedin...外形：...washuge.用途:sendsomemessages...open...Ithinkcomputersaregoingto...Computer

Computersarebecomingmoreandmoreimportantinourdailylife.①Doyouknowwhenthecomputerwasinvented?②Thecomputerwasinventedin1946.Atthattime,itwashuge.Withthedevelopmentofscienceandtechnology,thecomputerhasgrownsmaller.Nowtherearemanykindsofcomputers,suchaspersonalcomputersandlaptops.Thecomputerisaveryusefultoolinourlife.Forexample

③,itcansendsomemessagestoforeignfriendsbye-mail.What'smore,itcanshareinformationwithothersthroughtheWorldWideWeb.Wecanalsolistentomusicorplaythegameoncomputers.Itmakesusrelax.It’shardtoimaginewhatourlifewouldbelikewithoutcomputers.Ithinkcomputerswillbemoreconvenientandtheyaregoingtochangeourlifecompletelyinthenearfuture.④點(diǎn)評(píng)：①Computersarebecomingmoreandmoreimportantinourdailylife.②Doyouknowwhenthecomputerwasinvented?

開(kāi)門(mén)見(jiàn)山，點(diǎn)出主題。

語(yǔ)言過(guò)渡自然。通過(guò)一個(gè)疑問(wèn)句，將寫(xiě)作方向轉(zhuǎn)到介紹計(jì)算機(jī)的發(fā)展史上。③forexample,what‘smore…④Ithinkcomputerswillbemoreconvenientandtheyaregoingtochangeourlifecompletelyinthenearfuture.

等短語(yǔ)的使用使得更有說(shuō)服力。對(duì)未來(lái)計(jì)算機(jī)提出展望，以此收尾顯得自然流暢。Writing現(xiàn)在的科技日新月異，各種高科技產(chǎn)品成為我們生活中不可缺少的物品，如筆記本電腦（laptop）、手機(jī)（mobilephone）、MP4、數(shù)碼相機(jī)（digitalcamera）、數(shù)碼攝像機(jī)（DV）等。請(qǐng)以“MyFavoriteInvention”為題描述一種你最喜歡的發(fā)明，并說(shuō)明理由（至少兩條）。80詞左右。ExerciseⅠ.完成句子。1.在200多個(gè)國(guó)家中，超過(guò)一億人打(籃球)，包括中國(guó)。_____________________by______________100millionpeopleinover200countriesincludingChina.2.籃球是由加拿大一位叫詹姆斯·奈史密斯的博士發(fā)明的。Basketball________________________aCanadiandoctornamedJamesNaismith.Itisplayedmorethanwasinventedby3.人們認(rèn)為，歷史上的首次籃球賽是在1891年12月21日舉行的。____________________thatonDecember21st,1891,thefirstbasketballgameinhistorywas