外研社一起小学三年级下语法总结及练习题

三年级下语法一般将来时一、一般将来时的定义：一般将来时表示在将来时间将要发生的动作或存在的状态，与表示将来的时间连用。tomorrow,nextday(week,month,year…),soon,thedayaftertomorrow（后天）等。如：ShewillvisitShanghaitomorrow.二、一般将来时的构成1．主语+shall/will+do2.主语+begoingto+do在表示“打算到某地去时”由于谓语动词go与going重复，一般可以只说begoingtoaplace。三、一般将来时的用法1．主语+shall/will+do(will可用于所有人称，shall只用于第一人称I和we)这种结构不是表示自己的打算、意图或计划，而是表示未来的事实或对将来的预测等如：Noonewilldoheavywork.Robertswilldoeverythingforus.2.主语+begoingto+do这种结构常用来表达自己打算做某事、计划做某事或者有意做某事。注意：be动词要与主语的人称和数一致，如：Iamgoingtodosomereadingtomorrow.Heisgoingtohaveapianolessonnextweek.WearegoingtohaveapartythisFriday.四、通常情况下will和begoingto能互换，但是begoingto与will用法的也是有点区别的1.只用will不用begoingto的情况:①表示对未来时间与年龄的推测时，如:TomorrowwillbeMonday.Shewillbethirteennextyear.②表示必然发生时,如：Fishwilldiewithoutwater.Peoplewilldieifallgreenplantsdie.2.只用begoingto而不用will的情况：如果表示已有迹象表明在不久的将来要发生的事情时，如：Lookatthoseblackclouds,It’sgoingtorain.五、一般将来时的句式变换肯定句：主语+shall/will+do主语+begoingto+do否定句：主语+shall/will+not+do（willnot可缩写成won’t）主语+be+not+goingto+do一般疑问句：shall/will+主语+dobe+主语+goingto+do特殊疑问句：疑问词+shall/will+主语+do疑问词+be+主语+goingto+do练习题一、按要求填空1.我打算明天和朋友去野炊。I_____________________haveapicnicwithmyfriends.I________haveapicnicwithmyfriends.2.下个星期一你打算去干嘛?我想去打篮球。What___________________________________________nextMonday?I__________________playbasketball.What_________youdonextMonday?I________playbasketball.3.你妈妈这个周末去购物吗？是，她要去买一些水果。_____yourmother_______________goshoppingthis___________?Yes,she_________.She________________________buysomefruit.4.你们打算什么时候见面。Whattime_______you___________________meet?改句子5.Nancyisgoingtogocamping.（改否定）Nancy________goingtogocamping.6.I’llgoandjointhem.（改否定）I_______go______jointhem.7.I’mgoingtogetupat6:30tomorrow.（改一般疑问句）_______________________togetupat6:30tomorrow?8.Wewillmeetatthebusstopat10:30.（改一般疑问句）_______________meetatthebusstopat10:30.9.Sheisgoingtolistentomusicafterschool.（对划线部分提问）_______________she_________________________afterschool?10.Myfatherandmotheraregoingtoseeaplaythedayaftertomorrow.(同上)__________________goingtoseeaplaythedayaftertomorrow.用所给词的适当形式填空。11.Todayisasunnyday.We___________________(have)apicnicthisafternoon.12.Mybrother_______________(go)toShanghainextweek.13.Tomoften______________(go)toschoolonfoot.Buttodayisrain.He______________(go)toschoolbybike.14.Whatdoyouusuallydoatweekends?Iusually________(watch)TVand________(catch)insects?15.It’sFridaytoday.What_____she_________(do)thisweekend?She______________(watch)TVand_____________(catch)insects.16.What___________(d0)youdolastSunday?I____________(pick)applesonafarm.What______________(do)nextSunday?I______________(milk)cows.17.Mary____________(visit)hergrandparentstomorrow.18.LiuTao____________(fly)kitesintheplaygroundyesterday.19.David______________(give)apuppetshownextMonday.Was，were的一般过去时一、be动词包括“am”,“is”,“are”三种形式。1.第一人称单数(I)配合am来用。句型解析析：Iam+…2.第二人称(You)配合are使用。句型解析：Youare+…3.第三人称单数(HeorSheorIt)配合is使用。句型解析：She(He,It)is+…4.人称复数(we/you/they)配合are使用。句型解析：We(You,They)are+…be动词前面的人称，是不可随意替换的。例如：Iam,Youare,Sheis，并不会出现Iis,Youam,Sheare这样的情形。二、Be动词在一般过去时中的变化：1．am和is在一般过去时中变为was。（wasnot=wasn’t）2．are在一般过去时中变为were。（werenot=weren’t）3．带有was或were的句子，其否定、疑问的变化和am,is,are一样，即否定句在was或were后加not，一般疑问句把was或were调到句首练习题一、改写句子：1、Lucydidherhomeworkathome.（改否定句）Lucy_______________herhomeworkathome.2、Hefoundsomemeatinthefridge（冰箱）.（变一般疑问句)___________he_____________________meatinthefridge?3、Therewassomeorangeinthecup.（变一般疑问句)_______there_______orangeinthecup?4.Frankreadaninterestingbookabouthistory.（一般疑问句）_______Frank_______aninterestingbookabouthistory?5.Whynotgooutforawalk?（同义句）_______________________outforawalk?6.ThomasspentRMB10onthisbook.（否定句）Thomas___________RMB10onthisbook.7.Myfamilywenttothebeachlastweek.（划线提问）________________________family_______lastweek?8.IthinksheisLily’ssister.（否定句。注意否定转移）____________________9.Sallyoftendoessomereadinginthemorning.（否定句）Sally_______often______somereadinginthemorning.10.Heisatall,thinboy.（划线提问）______________he_______________?二、改错题(1．HowisJaneyesterday?_____________________2．Hegotoschoolbybuslastweek.____________________________3．Heoftengoeshomeat6:00lastmonth.____________________________4．Icanflykitessevenyearsago.______________________________5．Didyousawhimjustnow.____________________________________6．Tomwasn’twatchTVlastnight.____________________________________7．Ididn’tmyhomeworkyesterday.____________________________________8．Hewaitforyouthreehoursago.____________________________________9．Whofinditjustnow?________________________________________10.Whatmakehimcry(哭)justnow?________________________________