人教版高中英语选修八 unit 1 知识点 PPT课件免费下载

Period2(语言知识课)选修八Unit1Alandofdiversity可能，很可能，真的可能吗？1.probable,likely,possible【观察思考】Itislikelythatshewillsucceed.Heislikelytoarriveabitlate.【句型】Itislikely/possible/probablethat…很可能sb/sthislikelytodosth某人/物有可能做某事(1)likely的主语既可以是物，也可以是人。(2)possible和probable的主语不能是人，常用于It’spossibleforsb.todosth.,It’spossible/probablethat…句型中。(3)三个词中，可能性从大到小依次为probable，likely,possible.造句：某件可怕的事情可能会发生。___________________________________Somethingterribleislikelytohappen.【巩固运用】(1)Studiesshowthatpeoplearemore____tosufferfrombackproblemsiftheyalwayssitbeforecomputerscreensforlonghours.（2010陕西高考）A.likelyB.possibleC.probableD.sure（2）句型转换A.They’relikelytolosethegame.B._______________________________theywilllosethegame.AItislikelythat借助途径办大事2.bymeansof…用……办法，借助Weexpressourfeelingsbymeansofwords.Hecrossedtheriverbymeansofaboat.【短语】bythismeans用这种办法（inthisway,withthismethod）bynomeans决不，一点也不(放在句首时，句子用部分倒装语序)意思同innocase,undernocircumstancebyallmeans务必、不惜一切地；(用于交际英语表示同意)当然可以，没问题【巩固运用】（1）我们决不能放弃希望。________________________________（2）A:CanIbringmysistertotheparty?B:________________________________.Bynomeansshallwegiveuphope.Sure./Ofcourse./Certainly./Byallmeans.【拓展】means单复数相同，观察下列句子，注意其谓语动词的用法。Allpossiblemeanshavebeentried.Everypossiblemeanshasbeentried.Thequickestmeansoftravelisbyair.【巩固运用】完成句子(1)Todayanairshipisusedas___________________________(一种广告工具)．(2)Theburglarsenteredthehouse_________________________(借助梯子)．(3)__________________(这绝不是)isthisthefirsttimeyouhavebeenlate.ameansofadvertisingbymeansofaladderBynomeans我愿意随大溜3.majorityn.大多数majoradj.&v.主要的；主修minorityn.少数Themajorityofdoctorsagreethatsmokingisextremelyharmfultohealth.Inthenursingprofession,womenareina/themajority.Thehouseneedsmajorrepairs.Alicemajorsineconomics.【用法】themajorityof…大多数的beina/themajority占多数majorin…主修……【温馨提示】单独做主语时，若强调整体，谓语动词用单数，强调个体时，谓语动词用复数。themajorityof+n.后可用不可数名词，也可用可数名词复数,谓语动词由后面的名词决定。【巩固运用】（1）Themajority_____forthebudget.（2）Themajorityofstudents________hard-working.（3）Themajorityofthedamage______easytorepair.（4）这次会议年轻人占多数。________________________________areareisTheyoungareinthemajorityatthemeeting.投我一票吧4.electvt.选择；决定做某事；选举某人electionn.选举Obamawaselectedpresidentin2008.WeelectedJameschairman.【用法】electsb.tobe/as选某人为electsb.todosth.选某人干某事electtodosth.决定做某事提示：表示被选举为独一无二的官衔，职位且此名词在句子中做宾补，主补，同位语时，其前面不得使用冠词。【巩固运用】(1)我们选他当班长。______________________________(2)我们选他代表我们在大会上发言。_______________________________或______________________________________Weelectedhim(tobe/as)monitor.Weelectedhimtogiveatalkonbehalfofusatthemeeting.Weelectedhimspokesmanatthemeeting.你答对题的百分率高吗？5.percentagen．百分比；百分率1.Whatpercentageofchildrenwereabsent?2.Alargepercentageofpopulationliveinbigcities.3.Onlyasmallpercentageofstudentsareforeigners.4.Alargepercentageofthehotel’sincomecomesfromthevisitorstothelake.【温馨提示】(1)percentage百分比，百分率，其前不用具体的数字修饰，可以被large,small,high，low等形容词修饰。(2)percent百分之……，相当于“%”，其前面往往用具体数字修饰。(3)“apercentageof＋n.”在句中作主语时，谓语动词的单复数视名词的单复数形式而定。【巩固运用】完成句子________________________(大部分)peoplecame.______________________________(百分之五十的学生)cameformworker’sfamily.(3)Overninetypercentofmyclassmates________________________________(有一本英语字典)．(4)Thirtypercentofwaterinourcity______________________(被污染了)．AlargepercentageofFiftypercentofthestudentshaveanEnglishdictionaryhasbeenpolluted我突然想到……6.occurvi.发生；出现（1）Suddenlyagoodideaoccurredtome.=Suddenlyagoodideastruckme.（2）ItoccurredtomethatIshoulddropinonmyuncleonthewaytothecity.=ItstruckmethatIshoulddropinonmyuncleonthewaytothecity.（3）Itoccurredtohimtogivesomemoneytohisoldparents.【用法】(1)occurtosb.(想法，念头)出现在某人脑海中（2）Itoccurstosb.todosth./that…某人想起做某事【巩固运用】完成句子(1)__________________(我突然想)tovisitmyparents.(2)__________________(她突然想)shemightadoptahomelesschild.(3)Iwasgoingalongthestreetlookingforaplacetopark____________________(事故发生时)．ItoccurredtomeItoccurredtoherthatwhentheaccidentoccurred不要轻信别人哦7.takein翻译下列句子，并说出takein在句中的意思。(1)Beforeyoutranslateasentence,youshouldfirsttakeinthemeaningofthewords.____________________________________________________________(2)Thetourtakesinsomefamouscastles.____________________________________________________________(3)Don’tbetakeninbyhistricks.____________________________________________________________(4)Thedressneedstobetakeninatthewaist.____________________________________________________________理解，吸收包括欺骗改小与take有关的短语takeaway____takeback_____takedown____takeoff_____takeon______takeover_____takeup_________拿走收回写下，记下起飞，成功呈现接管占据，拿起，从事【当堂检测】(1)我突然想起今晚我该拜访汤姆。It__________________methatIshouldcallonTomtonight.(2)只有一小部分的人申请这份工作。Asmall___________ofthepeople____________thejob.(3)如今，许多来自农村的年轻人到大城市去谋生。Nowadays,manyyoungpeoplefromcountryaregoingtobigcitiesto_______________________forthemselves.(4)汤姆觉得把工作和乐趣结合起来不容易.It’snoteasyto______work_______pleasure.occurredtopercentageappliedformakealifemixwith(5)为了及时完成任务，他和我一起工作。He____________________________metofinishtheworkintime.(6)大厅里有很多人。_______________________________________(7)Thedictionaryisnowheretobefound._______________________________________teamedupwithThereareagreatmanypeopleinthehall.在哪儿都找不到这本字典。单