Unit4Grammar课件冀教版英语八年级下册

Unit4GrammarRulesmakeforabetterlife!LearningobjectivesInthislesson,wewillbeableto:Understandtheformandmeaningofthepassivevoiceinthepresentsimpletenseinthecontextofrulesandregulations;Describedifferenttypesofrules(school,traffic,nature)usingthepassivevoice;Applythepassivevoicewithrule-relatedexpressions(mustbe,arerequiredto,arenotpermitted)todiscussschoolpolicies,createclassroomrules,ordebatereal-liferegulations.LeadinWhatmustwedointhelibrary?Canweeatinthelibrary?No,foodisnotallowedinthelibrary.LeadinWhatmustwedointheexam?Canweusephonesduringtheexam?No,Phonesareforbiddenduringexams.LeadinWhatmustwedointheclass?Canwegetoutofourseatswithoutintheclasswithoutthepermission?No,youarenotallowedtodothat.PerceivetheformStudentsareexpectedtowearuniforms.Homeworkishandedinontime.Cyclistsarerequiredtostopatredlights.Plantsarewateredregularly.Spokenrulesaresaidorwrittensomewhere.Inmanyothercountries,closenessisconsiderednormal.Whatdotheyhaveincommon?Theyallhavethestructure:__________________.am/is/are+V-ed(过去分词)passivevoice（被动语态）在语法术语中，“voice”表示“语态”，用于描述句子中主语与谓语动词的关系：ActiveVoice：主语是动作的执行者Ihandinthehomework.PassiveVoice：主语是动作的承受者Thehomeworkishandedinbyme.PerceivetheformTrafficlawsareobeyedbyalldrivers.Visitorsareaskedtokeepquietinmuseums.

Treesareplantedinspring.WorkouttherulesWhenwedonotknow________doesthething,orwhenthisinformationis_______________,weusepassivevoice.Thestructure:am/is/are+V-edwhonotimportantWhydoweusepassivevoice?例：Alldrivers

obey

trafficrules.TrafficrulesareobeyedbyalldriversHowdowechangethesentencesintopassivevoice?谓语宾语步骤1.将主动句中的宾语改为主语。2.动词改为被动语态。3.将主动句中的主语，放在介词by之后，并接在被动语态后，by+主语可省略。主语PracticeEnglish________(speak)inmanycountriesaroundtheworld.Theclassroom________(clean)bystudentseveryFriday.Thesebooks____________(not/allow)tobetakenoutofthelibrary.Howoften________theschoolrules________(review)byteachers?Plasticbottles____________(recycle)toprotecttheenvironment.isspokeniscleanedarenotallowedarereviewedarerecycledPeopleusesmartphoneseverywhere.→Smartphones________everywhere.2.Thechefcooksmealsinthekitchen.→Meals___________inthekitchen.3.Theydon’tallowpetsinthishotel.→Pets_______________inthishotel.4.Doworkerscheckthemachineseveryday?→________themachines________everyday?Changeactivevoiceintopassivevoice.areusedarecookedarenotallowedArecheckedExamples:Robots

areused

tocleanclassrooms.FreepracticeDesign“Rulesforfutureschool”.Putforwardatleast5ruleswithpassivevoice,Rulesarenotconstraints,butthesilentguardiansofharmonyandprogress.一、用动词的适当形式填空Rice__________(grow)inmanyAsiancountries.Thewindows___________(clean)everyMondaymorning.Spanish_________(speak)inmostpartsofSouthAmerica.Thesepackages________________(notdeliver)onweekends.Howoften______thesemachines______(check)?isgrownarecleanedisspokenarenotdeliveredarechecked二.完成句子这些花每天都被浇水。Theseflowers________________everyday.2.会议在哪里举行？Where______themeeting______?3.图书馆的书不允许带出去。Thelibrarybooks_____not__________tobetakenout.4.这栋大楼每年都检查两次。Thisbuilding______________twiceayear.arewateredis

held

areallowed

is

checked

三、翻译句子Howoftenarethesemachinescheckedforsafety?这些机器多久被检查一次安全性？2.Themuseumisvisitedbythousandsofpeopleeverymonth.这家博物馆每个月被数千人参观。3.Nopetsareallowedinthisrestaurant.这家餐厅不允许宠物进入。4.Thissongislovedbypeopleofallages.这首歌被