小学一般现在时(详细讲解)课件.ppt

一般现在时,一般现在时(关键词),现在经常反复发生习惯性规律、真理,1.表示现在的状态：e.g.Hestwelve.Shesatwork.2.表经常、反复、习惯性的动作：e.g.Igetupat6:30everyday.HereadsEnglisheverymorning.常用的状语：often,sometimes,usually,everyday等。3.表示不受时间限制的普遍真理和自然规律：e.g.Twoandfourissix.Themoongoesaroundtheearth.,常与一般现在时连用的词,1、every系列,every,dayyearmonthweekmorningafternoonevening,、频率副词,never,、次数,一次once两次twice三次threetimes一周两次twiceaweek每周四次fourtimesaweek每周六onSaturdays每周日onSundays,一般现在时的构成,一、系动词be的一般现在时,1、构成：,主语+be+其他,2、be包括哪些？,isamare,3、什么时候用is？什么时候用am？什么时候用are？,取决于主语是单数还是复数,Thegirlismyfriend.,主语为单数时主语为复数时主语为“I”时,is,are,am,Exercise,1、Kitty_anEnglishgirl.2、We_students.3、I_fromTaizhou.4、She_tall.5、LucyandLily_goodfriends.6、Thosechairs_broken.7、Thebag_mine.,否定句的构成,主语+be+not+其他,isnot=amnot=arenot=,isnt,mnot,arent,1、Kitty(not)anEnglishgirl.2、We(not)students.3、I(not)fromTaizhou.4、She(not)tall.5、LucyandLily（not）goodfriends.6、Thosechairs(not)broken.7、Thebag(not)mine,Yes，itis.,No，itisnt.,1、IsthisyourEnglishbook？,注意：在回答时，主语要用相应的代词代替,be+主语+其它部分？,肯定回答：Yes，主语+be,否定回答：No，主语+be+not,be,主语,其他,含be一般疑问句的改写,秘诀：一调二改三问号一调：即把句中的be调到主语前；二改：改换主语称谓，即将句中的主语Imymineweourours等第一人称分别改为相应的第二人称youyouryours等；三问号：句末的句号改为问号,行为动词的一般现在时,构成,主语+行为动词+其他,Theseboyslikeplayingfootball.,ThegirlreadsEnglisheverymorning.,注意：当主语为第三人称单数时，行为动词要加s或者es,什么时候加s，什么时候加es呢？,1、大多数动词在词尾直接加s，readreadslooklooksplayplays2、以辅音字母加y结尾的动词，要先将y变为i，再加esflyfliescarrycarriesstudystudies3、以“s,x,ch,sh”结尾的，在词尾加“es”，teachteachesiz;watchwatchesbox-boxes4、以“o”结尾的动词，加“es”gogoeszdodoesz,Completethesentences.,Myfather_(listen)totheradioeveryday.Mike_(study)inamiddleschool.She_(take)Eddieforawalkaftersupper.He_(wash)clotheswithhishands.Simon_(pass)theballtoDaniel.MissLi_(teach)Chinese.Lookattheanimal,it_fourlegs.,listens,takes,studies,washes,passes,teaches,has,8,否定句的构成,主语+助动词（do/does）+not+动词原形+其他,Theseboysdont（donot）likeplayingfootball.,Thegirldoesnt（doesnot）readEnglisheverymorning.,什么时候用助动词do，什么时候用助动词does呢？,取决于主语,ThegirlreadsEnglisheverymorning.,Theseboyslikeplayingfootball.,当主语为复数时，用助动词do构成否定当主语为单数时，用助动词does构成否定,注意：dont和doesnt之后动词一定要用原形,Completethesentences.Usetheproperverbformsinbrackets,1.Jordan_(play)basketball.He_(notplay)football.2.I_(go)swimmingonSunday.ButI_(notgo)shopping.3.Mycousins_(enjoy)computergames.Butthey_(notenjoy)ballgames.4.You_(like)fish.Buthe_(notlike)fish.,plays,doesntplay,go,dontgo,enjoy,dontenjoy,like,doesntlike,12,行为动词一般疑问句的构成,含行为动词（或称为实义动词）一般疑问句的改写,秘诀：一加二改三问号一加：即在句首加助动词Do或Does；二改：1、把谓语动词改为原形；2、改换主语称谓（同第一家组）；三问号：句末的句号改为问号。,问句：DoyourparentslikeEnglish？肯答：Yes，theydo.否答：No，theydont.,助动词+主语+动词原形+其它？,肯定回答用“Yes,主语+do/does.”否定回答用“No,主语+donot/doesnot.”助动词也常用缩写形式，主要有dont，doesnt,WereadEnglisheverymorning.,DoyoureadEnglisheverymorning?,TomsfatherlistenstoEnglishontheradioeveryevening.,DoesTomsfatherlistentoEnglishontheradioeveryevening?,句型转换,1.Mr.GreencomesfromShanghai.(改为一般疑问句)2.MillielivesinaflatinBeijing.(改为否定句),DoesMr.GreencomefromShanghai?,MilliedoesntliveinaflatinBeijing.,3.Danielenjoysplayingcomputergames.(改为一般疑问句并做肯定回答),DoesDanielenjoyplayingcomputergames?,Yes,hedoes.,some、any,一般说来，some用于肯定句中，any用于否定句和疑问句中。,改疑问句或否定句时，原句里的some要改成any,Therearesomebooksonthedesk.(改为否定句),Therearentanybooksonthedesk.,Arethereanybooksonthedesk?,andor,变否定句时，and要变成or,Thereissomeairandwateronthemoon.,T