内蒙古乌兰浩特市第十二中学九年级英语下册《Module 4 Unit 3 Language in use》课件 （新版）外研版.ppt

unit3 languageinuse module4rulesandsuggestions 1 tosummariseandconsolidatetheuseofmodalverbs2 toknowmorerulesofeco tourism 情态动词 areyoufamiliarwiththesesentences theyareallfromthismodule observe 1 youmustbecarefuloffallingstones 2 youmustn twalktooclosetotheedgeofthehillpathbecauseyoumightfallandhurtyourselves 3 youshouldalwayswearproperclothes 4 bearsmightthinkourrubbishisfood 5 canwegorockclimbing no youcan t 6 youmustn tgooffonyourown 7 youmayneedsomewater 8 weshouldhangthefoodinatreetonight 9 theycansmellfoodfromalongwayaway 10 bearsmightthinkourrubbishisfood 11 noonecanrunfasterintheforestthanabear 12 youmustn tmakeanysuddenmovesormakeasound andaboveall youmustn trun 1 you becarefuloffallingstones 2 you not walktooclosetotheedgeofthehillpathbecauseyou fallandhurtyourselves 3 you alwayswearproperclothes 4 bears thinkourrubbishisfood 5 wegorockclimbing no you not 6 you not gooffonyourown must mustn t might should might can can t mustn t go ready 7 you needsomewater 8 we hangthefoodinatreetonight 9 they smellfoodfromalongwayaway 10 bears thinkourrubbishisfood 11 noone runfasterintheforestthanabear 12 you not makeanysuddenmovesormakeasound andaboveall you not run may should can might can mustn t mustn t 以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解 下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点 语法讲解 情态动词本身有一定的意义 但不能独立作谓语 只能与其后的动词原形一起构成谓语 表示说话人的情绪 态度或语气 用来表达建议 请求 可能或意愿等 情态动词没有人称和数的变化 情态动词后必须跟动词原形 常见的情态动词有 can could may might must need shall will should would 情态动词 canyouliftthisheavybox 体力 marycanspeakthreelanguages 知识 canyouskate 技能 can could 此时可用beableto代替 can只有一般现在时和一般过去式 而beableto则有更多的时态 表示能力 体力 知识 技能 常用情态动词can和could表达 如 i llnotbeabletocomethisafternoon 一般将来时 hewasabletogotothepartyyesterdayeveninginspiteoftheheavyrain 当表示 经过努力才得以做成功某事 时用beableto 不能用can 如 canigonow yes youcan no youcan t couldicometoseeyoutomorrow yes youcan no i mafraidnot 此时可与may互换 在疑问句中还可用could might代替 但could might并不表示过去式 只是语气更委婉 它们不能用于肯定句和答语中 如 表示请求和允许 如 they vechangedthetimetable sowecangobybusinstead thishallcanhold500peopleatleast 表示客观可能性 客观原因形成的能力 如 canthisbetrue thiscan tbedonebyhim howcanthisbetrue 表示推测 惊讶 怀疑 不相信的态度 用于疑问句 否定句和感叹句中 might mayismokeinthisroom no youmustn t may mightitakethisbookoutoftheroom yes youcan no youcan t mustn t may might 用mayi 征徇对方许可时比较正式和客气 而用cani 在口语中更常见 表示请求和允许 might比may语气更委婉 而不是过去式 否定回答时可用can t或mustn t 表示 不可以 禁止 如 mayyousucceed hemay mightbeverybusynow yourmothermay mightnotknowthetruth 用于祈使句 表示祝愿 如 表示推测 可能性 不用于疑问句 might不是过去式 它所表示的可能性比may小 如 youmustcomeintime mustwehandinourexercisebookstoday yes youmust no youdon thaveto youneedn t must haveto 在回答引出的问句时 如果是否定的 不能用mustn t 禁止 不准 而用needn t don thaveto 不必 表示命令 禁止 不得不 如 hisplayisn tinteresting ireallymustgonow ihadtoworkwheniwasyourage you retom sgoodfriend soyoumustknowwhathelikesbest yourmothermustbewaitingforyounow must是说话人的主观看法 而haveto则强调客观需要 must只有一般现在时 haveto有更多的时态形式 如 表示推测 可能性 只用于肯定的陈述句 如 youshallfailifyoudon tworkhard 警告 heshallhavethebookwhenifinishit 允诺 heshallbepunished 威胁 shall should shall用于第二 三人称 表示说话人给对方的命令 警告 允诺或威胁 shall用于第一人称 征求对方的意见 如 whatshallwedothisevening will wouldyoupassmetheball please iwillneverdothatagain theyaskedhimifhewouldgoabroad will would 表示意志 愿望和决心 如 表示请求 建议等 would更委婉 如 duringthevacation hewouldvisitmeeveryotherday thewoundwouldnotheal itwouldbeaboutteno clockwhenshelefthome would表示过去反复发生的动作或某种倾向 would表示过去习惯时比usedto正式 且没有 现已无此习惯 的含义 如 表示估计和猜想 如 ishouldhelpherbecausesheisintrouble yououghttotakecareofthebaby youshould oughttogotoclassrightaway shouldiopenthewindow should oughtto should oughtto表示 应该 oughtto表示义务或责任 比should语气重 表示劝告 建议和命令 should oughtto可通用 但在疑问句中常用should 表示推测should oughtto客观推测must主观推测 hemustbehomebynow 断定他已到家 heoughtto shouldbehomebynow 不太肯定 thisiswheretheoilmustbe 直爽 thisiswheretheoiloughtto shouldbe 含蓄 1 你必须马上回家 youmustgohomenow 2 他一定吃过什么东西了 hemusthaveeatensomething 3 吃饭之前不能吃零食 youmustn teatsnacksbeforemeals practice 4 我可以问你的名字吗 mayiaskyourname 5 你能用英语说吗 canyouspeakinenglish 6 我们应该准时去上学 weshouldgotoschoolontime 7 你没有必要那么做 youneedn tdothat 以下部分为课本练习 供老师在对答案时选择使用 matchthesignswiththerulesandwarning 1 p30 a b c d e f 1nosmoking 2noeatingordrinking 3childrencrossing 4danger becarefuloffallingrocks 5childrenshouldbetakencareofbyparents 6donotdrinkanddrive readthelistofrulesandwritesentencesusingmust mustn t shouldorshouldn t 2 p31 possibleanswers youmustcheckinatthemaingatewhenyoucometothecentre youshouldclimbwithsomeone wearthecorrectclimbingshoes wearcomfortableclothes youmustn tclimbwithoutarope youshouldn tlistentopersonalmusicplayerswhileclimbing workinpairs explainwhytherulesinactivity2areimportant 3 p31 whymustyoucheckinwhenyoucometothecentre becausetheywanttoknowwhoisthere 1whymustyouclimbwithsomeone becauseyoucanaskforhelpifyoumeetsomeproblems 2whymustyouwearcomfortableclothes becausecomfortableclothescanmakeyoulesstired 3whymustn tyouclimbwithoutarope becauseitisdangerousforyou 4whyshouldn tyoulistentomusicwhileclimbing becauseyoucanhearwhatisgoingonaroundyou peoplearevery 1 abouttheconditionsoftheancientforestsofcanadaandwanttosavethem manyvisitorstotheforestsuseknivestocuttheirnamesintothetrees someofwhicharehundredsofyearsold 2 therearelitterbins peoplestillthrowrubbishintothe 3 andthiscausesplantsandfishtodie peoplefromlocalvillageshavehelpedcleanuptheforests wehope 4 willplaytheirpartin 5 canada sforestscleantoo althoughkeepstreamtouristworry worried although stream s tourists keeping 4 p31 youshould youshouldn t youmust youmustn t nowwritepossiblerulesforvisitorstotheforests helpcleanuptheforest throwrubbishintothestreams takeyourrubbishhome cutyournamesintothetrees 1 comeandvisitme youhavetime 2 thewallismadeof 3 thepathtothetopisnotvery 4 remembertotakea withyoutosleepin becauseitmightrain 5 heliftedupthe andpointeditatthebear 6 therewasa noiseinthewoodsandweallstoppedmoving 7 birdsusesmall andleavestomakeahome gunsmoothsticksstonesuddententwhenever whenever stone smooth tent gun sudden sticks 5 p32 readthepassageandanswerthequestions 6 p32 1 whatdoeszhangwenpengtrytosaywithhisdrawing 2 whatdoeszhouzhiyuntrytosaywithhispainting hetriestosaythatpeoplemustwakeuptothefactthatpollutioniscausingdamagetotheprogresswe vemade hetriestosaythatpeoplemustnotwasteelectricity 3 whatdoestheschoolsuggestthestudentsshoulddo 4 howcanaschoolbecomea greenschool theschoolsuggeststhatthestudentsshouldpassonwhattheyhavelearntinschooltotheirparentsandneighbours aschoolcanbecomea greenschool byincludingeducationabouttheenvironmentinthetimetable listenandcompletethesentences 7 p33 1 thefirstthingyouhavetodoisto carefully 2 thinkaboutwhere andwhetherthereare 3 youshouldonlytakemarked 4 makesureyouknowwhere forlunch 5 don tforgettotellpeopleto forthepeople 6 don twalkwhenitis orin 7 youmustnottryouta withagroup planthewalk youaregoingtowalk clearlymarkedpaths paths youcanstop bringfood toohot verybadweather newwalk summary 单项选择 1 studentsinourschool knowshoutingisnotallowedinthelibrary a canb mayc mustd need2 you driveyourcarsofast it sverydangerous a wouldn tb shouldn tc couldn td mightn t 3 iseeyouridcard sir wehavetocheckyourinformation a mayb mustc shouldd need4 whereareyougoingthismo