搜索
Be动词的用法一、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。请记住以下口诀：我用am，你用are，is连着他，她，它；单数名词用is，复数名词全用are。变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑。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be的过去时有四巧：一是时间状语巧，表示过去的短语要记牢；二是形式巧，单数was，复数were；三巧是否定句结构，not紧跟was／were；四是疑问句式巧，was／were向前跑(提前)。【一巧】时间状语（即标志词）巧。一般过去时表示过去发生的动作或存在的状态，恰巧与表示过去的一些时间状语连用。【二巧】形式巧。它与一般现在时一样，形式多样：当主语是第一人称单数或第三人称单数时，谓语动词用was；主语是第二人称或其他人称复数时，谓语动词用were。例如：Iwasintheclassroomyesterdaymorning．昨天早上我在教室里。HewasatschoollastTuesday．上周二他在学校。Theywereoverthereamomentago．刚才他们在那边。【三巧】否定句结构巧。与动词be的一般现在时一样，它在动词后面加not即可变成否定句，并且was,were与not可以缩写成wasn't,weren't。即：主语＋wasn't／weren't＋表语＋其他。例如：Iwasnot(＝wasn't)hereyesterday．昨天我不在这儿。Myparentswerenot(＝weren't)athomelastSunday．上周日我父母不在家。【四巧】疑问句式巧。把was,were提到句首，句末用问号即可变为一般疑问句。即：Was(Were)＋主语＋表语＋其他？这恰巧与动词be的一般现在时的疑问句式相似。例如：Wereyouathomethedaybeforeyesterday﹖前天你在家吗？Wasshelatethismorning﹖今天早上她迟到了吗？更巧的是疑问句的答语也相似，肯定回答用“Yes,主语＋was／were．”；否定回答用“No,主语＋wasn't／weren't．”。例如：—WereWeiHuaandHanMeiherejustnow﹖刚才魏华和韩梅在这儿吗？—Yes,theywere．(No,theyweren't．)是的，她们在。（不，她们不在。）练习题一、Be动词的一般现在时练习1．用be动词的适当形式填空1)Amy____hersister.2)Hisname_____Kate.3)--What____yourphonenumber?--It_____284-2942.4)--______youCara?--No,I_____Gina.5)Herbrother’sname_____John.6)Hisfamilyname_____Li.7)This__________myteacher.8)How__________you?9)__________sheyourmother。10)__________yourmotherfine?11)Myname__________Kangkang.12)What__________yourname?2．填写正确的be动词Lisa:Dave,thisismyfriend,Mario.Mario,this______myfriendDavefromtheU.S.Dave:Nicetomeetyou,Mario.How________you?Mario:Fine,thanks.Andyou?Dave:I________great.Hey…..________youfromLosAngeles?Mario:No,I’mnot.I’mfromVenezuelainSouthAmerica.Whataboutyou?Where________youfrom?Dave:Myhome_________inLosAngeles.Mario:Oh…..whatcompany________youwith?Dave:IBM.Mario:Really?I’mwithIBMinVenezuela.Dave:Wow!What_______yourlastname?Mario:Palomino.Andyou?Dave:Reynolds.3．Be动词的一般过去时练习1)选择正确的词连词成句LaurieThomasandIThepartyThecarChildrenTheZooThebusTheyCarolHeTheschoolThecinemawaswasn’twereweren’tillyesterday.closedlastweekend.plentyofpeoplelastday.tallwhenIwas8.friendsatprimaryschool.openat9AMlastSaturday.fantastic!!myfirstboyfriend.verygoodfriends.myfavoriteplacetogo.verynice.athomeyesterday.1234567891011122)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_______________?3)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?__________________________________