八年级英语上册 Unit 1 Newspapers Language课件 牛津广州版.ppt

unit1newspapers language 情态动词 情态动词 情态动词本身有一定的含义 但不能单独作为句子的谓语 必须后面紧跟动词原形情态动词没有人称和数的变化 能 会表示 能力 can could 现在时 过去时 icansingenglishsongs icouldsingenglishsongsattheageoffive can could 2 可以表 许可 常用于口语之中 may a youcanborrowmypenifyouhaven tany youmayborrowmypenifyouhaven tany b caniuseyoureraser yes youcan no youcan t 3 可能canbe can tbe表 猜测 用于疑问句或否定句之中 a canthestorybetrue no itcan tbe b hecan tbeathomenow ishe 可以表 许可 mayicomein yes please may mayitakephotoshere yes youmay can no youmustn t 可能maybe表 推测 常用于肯定句中 whereistom hemaybeinthereadingroom forhelikesreadingthere imaybeateacherwhenigrowup maybeiwillbeateacherwhenigrowup must 1 一定 必须 mustwehandinourexercisesthisafternoon yes youmust no youneedn t don thaveto 2 肯定 mustbe mustn tbe表肯定的猜测 hemaybeathief 可能 hemustbeathief 一定 hemustbeateacher isn the thisstorymustbetrue forireaditinshenzhendaily what she hemustbeascientist forheknowsmuchaboutscience must maybe 名词 形容词 介词短语 whereisken hemustbeinthelibrary isawhimtherejustnow 表示猜测 maybe 可能是 mustbe 一定是 mustn tbe 不一定是 can tbe 一定不是 4 表示需要need 1 need作行为动词这时need就象其他动词一样 有第三人称单数needs 也有过去式needed1 needtodosthheneedstobuyapairofshoes doesheneedtobuyapairofshoes hedoesn tneedtobuyapairofshoes whatdoesheneedtobuy exercise theyneededourhelp 2 needsthtodosthineedabiketogotoschool 3 needsthsheneedsalotofmoney shedoesn tneedalotofmoney4sth needdoing sthneedtobedonemyhairneedswashing myhairneedstobewashed youneedn treturnthebooknow needhegoyesterday yes hemust no heneedn t 2 need作情态动词时 过去式也是need 多用于否定或疑问结构 一般不用于肯定句 表示 必要 没有必要 needn t don tneedto don thaveto may must need no sb can t maynot mustn t no sb needn t don thaveto yes sb must no sb needn t he moneynow need she tobringthebookhere need they gotoworkthatday notneed theboy anyhelp notneed needs does need needn t didn tneedto doesn tneed 5 表示责任should oughtto 应该 you workhardatallyoursubjects you workhardatallyousubjects should ought shouldn t oughtn tto to oughtyoutoobeytherules yes yououghtto no yououghtnotto 6 would作为情态动词 多于请求 wouldyoupleasesingusasong wouldyoulikeacupoftea wouldyouliketojoinusfordinner wouldyoumindourhavingapartyinthisroom wouldyoumindifwehaveapartyinthisroom iwouldliketodosth i dliketodosthiwouldnotliketodosthiwouldratherdosth i dratherdosthi drathernotdosth let sdotheexercises 1 what idoforyou madam shallb canc mayd will2 climbthattalltree a doyouneedb doyouneedc needyoud needyouto b c 3 istophere sir no goontothenextparagraph please a willb mayc couldd ought4 ourteachersareatwork you makesomuchnoisea mustn tb doesn tc needn td isn t b a 5 i mafraidit raintonight a canb couldc maybed might6 needistartfromthebeginning yes you a needb canc mayd must d d 7 mustiwritedownthesewordsnow no you a needn tb mustn tc maynotd can t8 somewarm heartedanimals hibernate 冬眠 a needn tb doesnotneedtoc needn ttod don tneed a a 9 look it belaowang no it behim forhehasgonetoshanghai may mustn tb must mayc must can td can maynot10 i likesomeonetotakemetothetheatrea willb mayc wouldd shall c c 11 ican tfindtomanywhereintheoffice where hehavegone a mustb canc shouldd need12 we diewithoutairorwatera willb shallc shouldd would b a 13 thispenlookslikemine yetitisn t whose itbe a mustb canc wouldd will14 igoandapologizetomyteacherformymistake a shouldb needc cand may15 heopenthedoor a shallb willc cand would b a b 16 parentsmusttakegoodcareoftheirchildren they a mustn tb don tc needn td aren t17 igetthereontimetoday no youneedn ta canb mayc mustd should c c 18 ateacher doeveryexercise butapupilmust maynotb needn tc can td mustn t19 willyoupleasegiveheramessagewhenyouseeher yes i shallb willc wouldd should b b 20 wouldyoucomebacklaternexttime no i a shan tb shouldn tc won td mustn t21 mustwefinishcopyingallthesehomeworkthisevening no you a mustn tb haven tc nothavetod don thaveto c d 22 couldiborrowyourdictionary yes ofcourseyou a mightb willc cand should23 peter comewithustonight butheisn tverysureyet a mustb canc mayd will c c 24 shallitelljohnaboutit no yo