【同课异构】人教版高一英语必修3课件：Unit 1 Section Three.ppt

unit1festivalsaroundtheworld learningaboutlanguage checkinganswer i 2m answerkeysforex 1onpage4 checkinganswer ii 2m answerkeysforex 2onpage4 manypeoplethinkthatchristmasisawestern butinfactitisreallyaworldwideholiday christmasactuallystartedasa festivalcelebratedby aroundtheworld its isaroundthe3rdor4thcenturyadwhenthe ofremember ingjesus birthondecember25thfirststarted today ofcourse manypeoplecelebratechris tmas itwerejustaholidayto family ratherthanaholidayabouta celebration religious christians origin custom asthough havefunwith belief checkinganswer iii 2m answerkeysforex 3onpage4 lookforwardto2 starving3 custom4 gather5 admire6 belief7 harvests harvests8 feast9 tricks10 gain gain grammar 情态动词 modalverb 情态动词有一定的意义 但没有人称和数的变化 不能独立使用 它和后面的动词构成谓语 只作情态动词的can could may might oughtto must可情态可实义的need dare dared可情态可助动词的shall should will would相当于情态动词的haveto usedto must can could may might的用法 must 1 must表示推测时 只能用于肯定句 这个电脑肯定出了问题 theremustbesomethingwrongwiththecomputer 你努力学了一整天 一定累了吧 youhaveworkedhardallday youmustbetired 2 must bedoing do表示对现在的动作进行肯定推测 他现在一定在看小说 hemustbereadingnovelsnow 他们买了一辆新车 他们一定很有钱 theyhaveboughtanewcar theymusthavealotofmoney 3 must havedone表示对过去发生的事情作出的肯定判断 他们在玩篮球 他们一定完成了作业 theyareplayingbasketball theymusthavefinishedtheirhomework 路是湿的 昨天晚上一定下雨了 theroadiswet itmusthaverainedlastnight can could can could表示推测时 只能用在否定句或疑问句中 it ssolate cantombereading 这么晚了 汤姆还在看书吗 这个人不可能是玛丽 她生病了 itcan tbemary shehasfallenill 她不可能在说谎 shecouldn tbetellinglies 2 can couldhavedone对过去发生行为的可能性进行推测 刚才我还看见他了 所以他不可能出国的 isawhimjustnowsohecouldn thavegoneabroad 门是锁着的 所以她不可能在家 thedoorwaslocked shecouldn thavebeenathome 3 can couldhavedone 本可以 本来可能已经 用于肯定句中 表示对过去发生的事情做出的判断 你本来可以考的更好 youcouldhavehadabettermark may might 1 may might表示推测时 只能用于陈述句 表示对现在或将来要发生的动作把握不大 她们明天可能会到这里来 theymaycomeheretomorrow 他们可能还在等我们呢 theymaybestillwaitingforus 2 might可用于指过去的行为或者表示可能性更小 他也许在作功课吧 hemightbedoinghishomeworknow 我问他我是否可以离开 iaskedhimifimightleave iaskedhim mayileavenow 3 might mayhavedone 表示对过去发生的动作进行可能性推测 他可能去医务室了 hemayhavegonetotheclinic 他可能已经从报纸上知道这个消息了 hemighthavereadaboutthenewsinthenewspaper will wouldyoudo 表请求表意志 愿望 决心would表过去反复发生得动作或某种倾向 总是 总要 usedto表过去常常 现在已没有这种习惯 过去常常 usedto可于状态动词连用would不可以eg heusedtobeaquietboy hewouldbeaquietboy will would 1 willyougoskatingwithmethiswintervacation it a alldependedb alldependsc isalldependedd isalldepending 解析 答案b italldepends是 不确定 看情况 的意思 练习 b 2 ifailedinthefinalexaminationlasttermandonlythen theimportanceofstudies a irealizedb ihadrealizedc hadirealizedd didirealize 解析 答案为d 句首为 only 副词 时 句子要用部分倒装语序 根据语境应为一般过去时态 d 3 iwouldnevercometothisrestaurantagain thefoodisterrible a noramib neitherwouldic samewithmed sodoi 答案b 第一个句子使用了would 用neither表示附和的意义时 助动词应与上文一致 b whenyouareverysureofsomething youusemustinpositivesentencesandcannotorcan tinnegativesentences e g youmustbejeanne i mmathildeloisel weusedtoknoweachotherverywell itcan tbetrue idon tbelieveit whenyouarequitesureaboutsomething youusecan e g attendingaballcanbeexciting practice1 whenyouthinkthatsomethingispossible butyouarenotverysure youusecould mayormight e g youcouldborrowsomejewelleryfromyourfriendjeanne whoismarriedtoarichman youmaynotknowthatthenecklaceireturnedisnottheonethatihadborrowed don tyouhaveafriendwhomightlendyousomejewellery practice2 表示推测 情态动词的重要用法 1 youmustbemrsmith iwastoldtoexpectyouhere 2 hemusthaveknownwhatwewanted 3 wemayhavereadthesamereport 4 hecan thavesleptthroughallthatnoise 5 there ssomeoneoutside whocanitbe 6 whatcantheybedoing 7 thesepillsmighthelptocureyourdisease 8 youcouldberight isuppose 表示推测 情态动词的重要用法 肯定的推测可能的推测否定的推测疑问的推测 must 对将来对现在对过去 情态动词 may might can t couldn t can could v v havedone常见mustbe bedoing v v havedone bedoing可以用not表示 可能不 v v havedone bedoing v v havedone bedoing 1 idon tknowwheresheis she beinwuhan 2 atthismoment ourteacher ourexampapers 这时 我们老师想必在批改试卷 3 theroadiswet it lastnight rain 4 yourmother foryou 你妈妈一定一直在找你 may mustbemarking musthaverained musthavebeenlooking 5 philip seriouslyinthecaracci