beusedforLead-inbeusedfor意為“被用作……”，介詞for表示用途，后面接名詞或動名詞，相當(dāng)于“beusedtodo

sth.”。beusedfor的用法Thismachineisusedforwashingclothes.=Thismachineisusedtowashclothes.這機(jī)器是用來洗衣服的。Lead-inKnivesandforkareusedforthemostfood.刀和叉被用來吃大多數(shù)食物。PresentationDictionariesareusedforlookingupnewwords.字典被用來查新單詞。PresentationChopsticksareusedtoeatthefood.筷子被用來吃食物。Practice1.Knives

cuttingthings.

小刀是用來切東西的。

areusedfor2.A

watch

tellingthetime.

手表是用來了解時間的。

isusedfor3.Akeyring

holdingthekeys.門鈴是用來開門的。

isusedforPresentationbeusedby的用法beusedby意為“被……使用”，介詞by后面常接動作的執(zhí)行者。Thecarisusedbymyuncle.

我的叔步使用這輛轎車。Thekeyisusedforlockingtheclassroomdoor.這把鑰匙你用來打開教室的門的。Presentation主動語態(tài)和被動語態(tài)什么時候用主動語態(tài)或被動語態(tài)？主語是動作的執(zhí)行者就用主動語態(tài)主語是動作的承受者就用被動語態(tài)WestudyEnglishatschool.Englishisstudiedbyusatschool.我們用木頭做家具。那只老鼠被貓抓住了

相機(jī)是用來照相的。主動語態(tài)被動語態(tài)被動語態(tài)Practice1.Iwashedmyclothesonceaday.

Myclotheswaswashed(byme)onceaday.Iwaswashedmyclothesonceaday.X√2.TheytookJimtothehospital.3.Tomclosedtheshopjustnow.TheywastookJimtothehospital.Jimwastakentothehospitalbythem.TheshopclosedTomjustnow.Theshopwasclosed(byTom)justnow.XX√√Practice1.Theyplaybasketballintheirschool.

Basketball_____________intheirschoolbythem.isplayed2.Thenaughtyboybrokethewindow.Thewindow_____________bythenaughtyboy.3.PeoplespeakEnglishallovertheworld.English_____________bypeopleallovertheworld.wasbrokenisspoken改為被動語態(tài)Presentationfor和since的用法for+段時間，表示持續(xù)了多久Ihavebeenateacherfor10years.since+過去的某個點時間，表示自從…時候起。Ihavebeenateachersince

2010.IhavebeenateachersinceheleftZhuzhou.Presentation瞬間動詞：發(fā)生的時間短暫，不能和延續(xù)性的時間詞連用。如：buy,close，borrow等。延續(xù)性動詞：動作可以延續(xù)，或者就是一個狀態(tài)。如：be,keep,stay。我買這本書3年了。Ihavehadthebookfor3years.Mary的爺爺從2010年去世至今。Mary’sgrandpahasbeendeadsince2010.Practice選用for,since填空Wehaven’tseeneachother____alongtime.Hisfatherhasbeeninthisfactory_____10yearsago.Thefilmhasbeenon____10minutes.Mr.Smithhasworkedhere______hecametoChina.Hisgrandpahasbeendead___severalyears.forsinceforforsincePractice1.我買這本書3年了。Ihaveboughtthebookfor3years.2.Mary的爺爺從2010年去世至今。Mary’sgrandpahasdiedsince2010.3.他住在這兒5年了。Helivedtherefor5years.XXX隨堂練習(xí)Practice1.Computer

manypeopleallovertheworld.用beusedfor,或beusedby填空。2.The

calculators

workingoutmathproblems.3.Stamps

sendingletters.areusedforareusedforisusedby隨堂練習(xí)Practice這些照片是上星期拍的。這本書是魯迅寫的。史密斯一家被邀請參加了派對。Thesephotosweretakenlastweek.ThisbookwaswrittenbyLuXun.TheSmithswereinvitedtotheparty.

4.Safetyglassesareusedforprotectingyoureyes.

Safetyglassesareused

youreyes.to

protect隨堂練習(xí)Practice【2013.上?！?/p>

“Youhave___mybooksfortwomonths.“Sorry.I’llreturnittomorrow.”Agot

Blent

Cborrowed

Dkept直擊中考【解析】瞬間動詞,發(fā)生的時間短暫，不能和延續(xù)性的時間詞連用。這句的意思是這本書你借了兩個月了，對不起，我明天還它。借是短暫性動詞：動作不可以延續(xù)，故應(yīng)該選D。DPractice【2012.浙江紹興】

doyouknowwhattheword“cool”means?ofcourse.It___byyoungpeoplesooftentheseyears.Auses

Bisused

Cwasused

Disusing直擊中考【解析】句意：你知道“cool”這個單詞的意思嗎？