六上知识点汇总一、can,can’t,let’s,don’t,should，will，must后面一定要用动词原形Shecansingasong.Let’splayfootball.Don’tbelate!Youshouldwearmoreclothes.Shewillgotothezootomorrow.Shemustgohomenow.二、动词三单的变化规则（与名词单数变复数的规则相同）1.一般情况下,直接在词尾加-s,如:draw-drawsplay—plays,visit-visits,read-reads2.以o,sh,ch,s结尾的词,在词尾后加-es,如:go-goes,do—does,watch-watches,wash-washes,catch-catchesteach-teaches,cross-crosses(穿过)，miss-misses(想念)3.以辅音字母+y结尾的,变y为i再加-es,如:fly-flies,study-studies,worry-worries,注意：play-plays，buy-buys,stay-stays，pay-pays(元音字母加上y结尾直接加s)4.特殊变法：have-has三、动词现在分词的变化规则动词的ing形式的构成规则：①一般直接在动词后面加ing,如:do-doing,go-going,work-working,sing-singing,eat-eating②以不发音字母e结尾的动词，先去e再加ing,如:have-having,write-writing,ride-riding,make-making,drive-driving,take-taking,dance-dancing,chase-chasing,type-typing,use-using,give-giving,come-coming,live-living③双写最后一个辅音字母，在加ing：run-running,swim-swimming,sit-sitting,stop-stopping(停止)，get-getting四、句子的时态1．一般现在时态：表示经常发生的或习惯性的动作或目前的状态。规律：一般用动词原形，当主语为第三人称单数时，动词用三单形式。标志性的单词：always,usually,often,sometimes，everyday,如：Sheusuallygoestoschoolonfoot.2．现在进行时态：表示说话时正在发生或进行着的动作。规律：be+动词ing形式，标志性的单词：look,now,listen,如：Look,theboyisplayingfootball.3．一般将来时态：表示将来发生的动作或情况。规律：begoingto+动词原形,will+动词原形(第一人称可以用shall+动词原形)，标志性的单词：tomorrow,nextweekend，如：IamgoingtovisitBeijingtomorrow.IwillvisitBeijingtomorrow.IshallvisitBeijingtomorrow五、句型转换11、肯定句变否定句：（1）动词be的句子则“be+not”，可缩写成“isn’t，aren’t,”，但amnot不能缩写。肯定句：Sheisreadingabook.否定句：Sheisn’treadingabook.（2）can，should,will,must的句子则“can+not(can’t),shouldnot(shouldn’t),willnot(won’t),mustnot(mustn’t)”。肯定句：Icanflyakite.否定句：Ican’tflyakite.肯定句：Iwillflyakite.否定句：Iwon’tflyakite.肯定句：Ishouldseeadoctor.否定句：Ishouldn’tseeadoctor.（3）实意动词的句子：助动词do/does+not”，你也可以把它们缩写成“don’t,doesn’t）。这两个助动词要根据人称和时态来选择，其中“does”只用于一般现在时主语是第三人称单数的情况。肯定句：IwatchTVontheweekend.否定句：Idon’twatchTVontheweekend.肯定句：ShewatchesTVontheweekend.否定句：Shedoesn’twatchTVontheweekend.2、肯定句变一般疑问句（1）把动词be调到首位，句号变成问号。肯定句：Thereisapenonthedesk.一般疑问句：Isthereapenonthedesk?（2）把can,will,should调到首位，句号变成问号。肯定句：Wecanswim.一般疑问句：Canyouswim?肯定句：Wewillswim.一般疑问句：Willyouswim?肯定句：Weshouldswim.一般疑问句：Shouldyouswim?(3)在句首加上一个助动词（do，does）再把紧跟在后面的动词变回原形，句号变成问号。肯定句：Icookdinnereveryevening.一般疑问句：Doyoucookdinnereveryevening?肯定句：Mymothercooksdinnereveryevening.一般疑问句：Doesyourmothercookdinnereveryevening?六、固定短语1.想做某事：wanttodo(动词原形)，例如：Iwanttobuyapostcard.Iwanttosingsongs.IwanttowatchTV.2.帮助某人做某事：help+sb(某人)+do(动词原形)+sth(某事)Hecanhelpmefindtherestaurant.3.注意：payattentiontoWemustpayattentiontothetrafficlights.4.让某人做某事：letsbdosthLetmereadthisforyou.Let’splayagame.Don’tletthedogsruntoofast.25.喜欢做某事：liketodo或likedoingIlikereadingbook...
