8BUnit21.已学时态(1)一般现在时（do/does）提示词：表示频率的词，如never,sometimes,often,usually,always,every…,onceaweek,fromtimetotime等(2)一般将来时（willdo/begoingtodo）提示词：将来的时间，如nextweek,in2020,intwohours(两小时内)等(3)现在进行时（bedoing）提示词：atthemoment,atpresent,now,Look!Listen!,thesedays等（感官及“拥有”不用现在进行时）(4)过去进行时（was/weredoing）提示词：过去某个特定的时间点，如at7yesterdaymorning,Ididn’thear/see…,when,while等(5)一般过去时（did）提示词：过去的时间，如last…,theotherday,yesterday,…ago,inthepast,since后面跟的从句中,justnow等(6)现在完成时（have/hasdone）提示词：already,yet,ever,never,recently,sofar,uptonow,till/untilnow,bynow,howlong,in/over/duringthepastfew/twoyears/months/weeks,before,次数(sometimes几次)等*能够明确看出对现在有影响的句子也要用现在完成时！2.现在完成时包含短暂性和延续性*用现在完成时延续性动词的情况：表示动作从过去持续到现在，句中会出现持续一段时间的提示词：如for+时间段，since+时间点，over/in/duringthepast…years,sofar,bynow,uptonow,till/untilnow,howlong等短暂性动词延续性动词的现在完成时begin/starthave/hasbeenonfinish/stophave/hasbeenovercome/go/arrivehave/hasbeenin/atleavehave/hasbeenaway(fromsp.)borrowhave/haskeptjoinhave/hasbeenin或have/hasbeenamemberofmarry/getmarriedhave/hasbeenmarrieddiehavebeendeadcatchacoldhave/hashadacoldcatchfirehave/hasbeenonfirebuyhave/hashadopenhave/hasbeenopenclosehave/hasbeenclosedfallillhave/hasbeenillfallasleep/gotosleephave/hasbeenasleep*形容词和介词前才加be动词，行为动词前不加“been”3.havebeento去过，已回（后面一边会出现次数或before等提示词）havegoneto去了，未回（出现找人或willbeback等提示词）havebeenin在某地待了…（延续性的时候必须用这个）4.travel---travelling---travelledtravelaroundtheworldineighthourstraveltosp.5.miss(1)思念，想念misssb.somuch(2)错过missthebusmissdoingsth.6.fantasy---fantastichaveafantastictimedoingsth.做某事很愉快=haveagreat/goodtimedoing=havefundoing*Itisgreatfuntodosth.Whatgreatfun(itis)todosth.*have(no)timetodosth.没时间做某事7.indoor---outdoor8.speed(n.)move/driveathighspeedataspeedof____kilometersanhour(v.)speedup提速9.lotsofcartoonfilmsseveralcartooncharacters*maincharacters主角，主人公10.ride(v.)rideabike/horse(n.)throughtheride在整个乘坐过程中havearideonyourbike11.such+名词短语suchalonelyladyso+adj./adv.solonely/quickly*suchfineweather(weather不可数，所以fineweather就是名词短语)suchas+名词/doingforexample+名词/句子（forexample后面要直接加逗号）12.watchaninterestingparadeof….13.magic(n.)不可数---magical(adj.)14.feel(1)摸起来…feelsoft/good(2)感到身体好feelwellagain(3)感觉到，意识到feelthewind/theapplepie15.couple(1)acoupleof…(2)夫妻twocouples两对夫妻16.attheendof+sth.在…末尾intheend=atlast=finally最终17.sand（1）沙（不可数）（2）沙滩（可数）walkonthesand18.gotothecountrysideforaholiday*beonholiday在度假19.over(1)结束beover(2)超过forovertwentyyears(3)在…期间overthepasttwentyyears20.marry(v.)marrysb.---married(adj.)get/bemarriedtosb.---marriage(n.)Theirmarriageishappy.他们的婚姻很快乐。21.die(v.)---dead(adj.)死了的---dying(adj.)奄奄一息的，将死的---death(n.)死亡beafraidofdeath=beafraidtodie22.beauty(n.)(1)美丽（不可数）thebeautyofnature(2)美景（一般不用复数）placesofnaturalbeauty(3)美人（可数）twelvebeautiesofJinling金陵十二钗---beautiful(adj.)23.liveinaseasidehouse24.themeparksathemesong25.sail（帆）raisethesails扬帆---sailing（帆船运动）likewate...
