（2020）新北师大版高中英语高一选择性必修第一册Unit 3 Conservation (8)-Grammar ppt课件.rar

选择性必修一 Unit 3 Conservation (8) Relative ClausesDefining and Non-defining ClausesGrammar Review1.Observeandidentifythecorrectnessofthesentences.ThisistheplaceIhidthekey.ThisistheplacewhereIhidthekey.Theyarethepeoplehousescaughtfire.Theyarethepeoplewhosehousescaughtfire.2.Readthesentencesanddiscusswhichwordorwordstheclausesreferto.Whenwewerentplayingonthecourtwhich was next to our building,wewerewatchingagameonTV.PaulsfavouriteplayerwasTyroneBogues,aguywho played for the Charlotte Hornets. Thisistheplacewhere I lost my purse.Review3.Reviewthedefinitionofrelativeclauseandrelatives.Whatisarelativeclause?Relativeclauseis a subordinate clause which specifies or gives informationaboutapersonorathingwearetalkingabout.Whatarerelativepronounsandadverbs?who,which,that,whose,whom,as,when,where,whyReviewObserve and discuss 1.Readthesentencesanddiscusswhichwordorwordstheclauses(in italics)referto.Extinctions,where entire species are wiped out,arenotunusualinourEarthshistory.Thisincludesthethirdmassextinction,knownasthe“GreatDying,”which killed 90% to 96% of all species.A2015studybyscientistswho were based at Brown University and Duke University in the US,lookedathowquicklyspeciesdieoutduetonaturalcauses.Ifasixthmassextinctionoccurs,scientistswho have studied the issuebelievedthatuptothreequartersofallspeciesonEarthwoulddieout.Observe and discuss Weneedtotakestepstosaveendangeredspecies,includingsettingupspecialareaswhere plants and animals can be protected. Observe and discuss 2.Lookatthefollowingexamplesandtellthedifferencesbetweenthesentences.Extinctions,where entire species are wiped out,arenotunusualinourEarthshistory.Ifasixthmassextinctionoccurs,scientistswho have studied the issuebelievedthatuptothreequartersofallspeciesonEarthwoulddieout.Observe and discuss 3.Readthesentencesandidentifywhatkindofrelativeclausestheyare.Thegirlwho is playing tennisismyfriend.Shestillremembersthetimewhen she noticed her car was missing.Idontagreewiththeproposalthat you brought up in the meeting. (definingclauses)Observe and discuss 4.Readthesentencesandidentifywhatkindofrelativeclausestheyare.Theaccident,which happened yesterday,hasledtothreedeaths.Theprofessorgavemealotofadvice,from which I benefited a lot. Itissnowingheavily,which makes the children excited. (non-definingclauses)Observe and discuss 5.Readthesentencesanddiscussthedifferencesinrelativeclauses.Ilikethebookwhich/thatwasboughtyesterday.Ilikethebook,whichwasboughtyesterday.Hegaveuptheplan,whichwasaverygoodone.Hegaveuptheplanwhich/thatwasaverygoodone.Conclusion:Therelativepronoun“that”cantbeusedinnon-definingclauses.Observe and discuss 1.Summarizethecategoriesofrelativeclausesandtheirfeatures.Definingclauses:giveinformationtoidentifythepersons/objectsNon-definingclauses:giveextrainformationaboutapersonorathing,whichcanbeleftoutObserve and summarizePractice1.Underlinetherelativeclausesinthesentencesandidentifywhethertheyaredefining(D)ornon-defining(ND).()Hewenttoacitywhereironwasproducedinhugequantities.()Imetthefamousprofessorinthehotel,wherethemeetingwasheld.DND()ThebuswhichwasfulloftouristsstoppedneartheLeaningTowerPisa.()Melissalentmesomemoney,whichwasverygenerousofher.()Thegroundiscoveredwithsnowandice,whichmakesdrivingverydangerous.DNDNDPracticeIboughtacaryesterday,costmealot.Hewasquicklytakentohospital,adoctorwantedtoexaminehislegs.Wewillputofftheoutingnextweek,wewontbesobusy.whichwherewhenPractice2.Fillintheblankswiththerelativepronounsoradverbs.Theyvewontheirlastthreematches,Ifindabitsurprisingactually.Shehadeightchildren,threeofbecamesoldiers.whichwhomPractice2.Fillintheblankswiththerelativepronounsoradverbs.3.Joineachpairofsentencestoformonesentence,usingoneofthemasnon-definingclauseswithwho,whom,whose,which,whereorwhen.Amyisanactress.SheisJaysfriend.Amy,whoisJaysfriend,isanactress.PracticeThedoctorsinthathospitaltriedtheirbesttosaveAmy.Amyspenttwomonthsinthathospital.ThedoctorsatthehospitaltriedtheirbesttosaveAmy,whospentabouttwomonthsinthathospital.PracticeMikehasdecidedtovisittheGreatWallnextmonth.Hishobbyistravelling.Mike,whosehobbyistravelling,hasdecidedtovisittheGreatWallnextmonth.PracticeRecently,IboughtanancientChinesevase.Thepriceofitwasveryreasonable.Recently,IboughtanancientChinesevase,thepriceofwhichwasveryreasonable.PracticeExpress yourselfWorkingroups：Choosetwoorthreeenvironmentalproblemsthatarecausedbyhumanactivity.Offersolutions.Trytouserelativeclauseswhenappropriate.Forexample:Ourgroupchooseglobalwarmingasthethemeofourspeech.Globalwarminghasbecomeoneofthemostseriousproblemsin todays world. Potential threatswhich are associated withglobalwarmingincludestormsandsealevelrises,etc.Costalcitieswillbedrowntoagreatextent.Express yourselfTherearesomewaystosolvetheproblems.Firstly,wecouldlive a low-carbon lifestyle,which is quite popular now. Wecouldtakevehiclesthatarefriendlytoenvironmentsuchassubwaysandbikes.Express yourselfSecondly, importance should be attached to planting moretrees,which will greatly alleviate the process of globalwarming.Last, the government should hold more activitieswhose themes are increasing peoples awareness onenvironmentalprotection.Express yourself1.Haveagroup/pairdiscussion.Chooseanewenvironmentalproblemwhichisnotdiscussedinyourgroupintheclass.2.Writedownyoursolutionsfortheproblem.Userelativeclauseswhenappropriate.HomeworkThank you！