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1、实用文档新概念英语第一册语法总结新概念英语第一册语法总结一、时态：1.一般现在时表示一般性，经常性的动作或客观存在事实。动词be的用法：I用am，you用are，其他记牢单用is复用are。1含有be动词的句子Heisateacher.Thegirlisverybeautiful.TimandJackarestudents.★变疑问句将be动词移到句首Isheateacher?Isthegirlverybeautiful?AreTimandJackstudents?★肯定回答及否定回答Yes,heis.No,heisnot.大全实用文档Yes,sheis.No
2、,sheisnot.Yes,theyare.No,theyarenot.★变否定句在be动词后面加notHeisnotateacher.Thegirlisnotverybeautiful.TimandJackarenotstudents.2.现在进行时表示现在正在进行的动作。构成：主语＋be动词＋动词的现在分词＋其它成分（现在分词的构成见附录）Wearehavinglunch.Heisreadingabook.Thedogisrunningafteracat.Theboysareswimmingacrosstheriver.★变疑问句将be动词移到句首Arew
3、ehavinglunch?Ishereadingabook?大全实用文档Isthedogrunningafteracat?Aretheboysswimmingacrosstheriver?★变否定句在be动词后面加notWearenothavinglunch.Heisnotreadingabook.Thedogisnotrunningafteracat.Theboysareswimmingacrosstheriver.★特殊疑问句：what,which,how,where,who,etc.疑问词＋动词＋主语＋现在分词Whatareyoudoing?Whatis
4、shedoing?Whatisthedogdoing?没有进行时的动词（必背）表示状态，思想，感情和感觉的动词不能表示正在进行的动作1.表示感觉，感官的词see,hear,like,love,want,大全实用文档2.have,has当”拥有”讲时没有进行时3.一般过去时：表示过去发生的动作或事件，常和表示过去的时间状语连用，如yesterday,lastnight,thedaybeforeyesterday,3daysago,含有be动词的句子，将动词变为过去式，am,is的过去式为was，are的过去式为wereIwasatthebutcher’s.You
5、wereastudentayearago.Theteacherwasverybeautifultenyearsago.★变疑问句将be动词移动到句首Wereyouatthebutcher’s?Wereyouastudentayearago?Wastheteacherverybeautifultenyearsago?★变否定句在be动词后面加notIwasnotatthebutcher’s.Youwerenotastudentayearago.Theteacherwasnotverybeautifultenyearsago.★肯定回答否定回答大全实用文档Yes,
6、Iwas.No,Iwasnot.Yes,youwere.No,youwerenot.Yes,he/shewas.No,he/shewasnot.★特殊疑问句：Whatdidyoudo?（必背）不含有be动词的句子，将动词变为过去式，动词过去式构成见附录Ifinishedmyhomeworkyesterday.Theboywenttoarestaurant.TheSawyerslivedatKingStreetayearago.★变疑问句在句首加did，动词变为原型Didyoufinishyourhomeworkyesterday?Didtheboygotoar
7、estaurant?DidtheSawyersliveatKingStreetayearago?★变否定句在主语和动词之间加didnot，动词变回原形。Ididnotfinishmyhomeworkyesterday.大全实用文档Theboydidnotgotoarestaurant.TheSawyersdidnotliveatKingStreetayearago.★肯定回答及否定回答Yes,Idid.No,Ididn’t.Yes,hedid.No,hedidn’t.Yes,theydid.No,theydidnot.4.现在完成时构成：主语+助动词have,
8、has+过去分词用法：2）表示过去发生
