考点1.too…to…的同义句：too…to…=not…enoughto…=so…that…Heissoyoungthathecan’tgotoschool.=Heisn’t___old___enough___togoschool.=Heis__too___young___to__gotoschool.Theboxistooheavyforustocarry.Theboxisn’t________enough__tocarry=Theboxis__so__heavy__that__we_can’t___carryit.考点2.seesbdosth、seesbdoingsth的区别1.seesbdosth:看见某人做了某事2.seesbdoingsth.看见某人正在做某事Theteachersawthestudents__read_____(read)Englishwhenhecamein.Look！Canyouseethegirl_dancing____(dance)underthetree?注：类似的动词有：hear,watch,notice等。省to的不定式变被动语态时，需带上toIoftennoticehimgohomealone.------Heisnoticed___to___go____homealone.考点3.takepartin/join的区别：1.takepartin表示参加某项活动，运动，事件等。着重强调以主人公的姿态或在活动中负有责任而参加。2.join表示加入组织，团体，党派而成为其中一员。注：joinsbin….表示“参与某人的活动之中”He______thePartyin1987.Canyoucomeand_join____usinthegame?Twentystudentsfromourclass_____tookpartin____thesportsmeetinglastweek.考点4.because/becauseof的区别：1.because后面接从句（除what从句之外）。2.becauseof后面接名词、代词、名词性短语、what从句。Hedidn’tgotothepartybecausehewasill.Hedidn’tgototheparty_bacauseof________his_illness___.Shewasveryangry___B___whatyousaid.A.becauseB.becauseofC./D.with考点5.keep的用法：1.keep+adj表示保持某种状态Keep___quiet___,Thebabyissleeping.2.keep+sb/sth+adj表示使某人保持某种状态Wemustkeepourclassroom____clean__.3.keepdoingsth.表示不间断地持续做某事或一直做某事。Itkept__rainning_____(rain)allnight.4.keepondoingsth表示反复做某事。Hekepton__making_____(make)thesamemistakes.5.keep+sb+doingsth表示让某人一直做某事。Hekeptus__waiting_____(wait)foranhour.6.keep+sbfrom+doingsth表示阻止某人干某事。=stopsb(from)doingsth=preventsb(from)doingsth.Becauseoftheheavyrain,wecouldn’tgotoschool.=Theheavyrain____keep__usfrom_going___toschool.考点6.invite的用法：1.词性转换：invite-----名词invitationThanksforyour__invitation_____(invite)2.invitesbto….邀请某人参加…..3.invitesbtodosth邀请某人干某事CanIinviteyou_toplay_____(play)basketballwithme?考点7.enough的用法：enough修饰名词时,可置于名词前面或后面。修饰形容词或副词时，只可放在形容词或副词的后面。Ihaveenoughmoney/moneyenoughtobuythebook.=I_rich_____enough___tobuythebook.Heissotallthathecanreachtheapple.Heis_tall_______enough__toreachtheapple.
