小学英语语法时态讲解与归纳一般现在时

小学英语语法时态讲解与归纳~~一般现在时一.意义：表示经常发生的事情，动作或存在的状态二.构成及变化1.be动词的变化。肯定句：主语+be(am,is,are)+其它。如：Iamaboy.我是一个男孩。否定句：主语+be+not+其它。如：Heisnotaworker.他不是工人。一般疑问句：Be+主语+其它。如：-Areyouastudent?-Yes.Iam./No,I'mnot.特殊疑问句：疑问词+一般疑问句。如：Whereismybike?2.行为动词的变化。l、当主语为第一，二人称及复数时，助动词为do肯定句：主语+动词原形(+其它)。如：Weoftenplaybasketballafterschool.否定句：主语+don't+动词原形(+其它)。如：wedon’tplaybasketballafterschool.一般疑问句：Do+主语+动词原形+其它?如：Doyouoftenplaybasketballafterschooll?Yes,wedo./No,wedon't.特殊疑问句：疑问词+以do开头的一般疑问句？如：Whatdoyouoftendoafterschool?２、当主语为第三人称单数时,助动词为does肯定句：主语+动词三单式(+其它)。如：Heswimswell.否定句：主语+doesn’t+动词原形(+其它)。如：Hedoesn’tswimwell..一般疑问句：Does+主语+动词原形+其它。如：Doesheswimwell?Yes,hedoes./No,hedoesn't.特殊疑问句：疑问词+以does开头的一般疑问句？如：Howdoesyourfathergotowork?三．第三人称单数的动词变化规则（只有在第三人称为主语的肯定句中，动词才用三单式）(1)多数动词直接加s:runsgetslikescolletstakesplaysclimbs…….(2)结尾是s,x,sh,ch,o,前为辅音字母,结尾加es:watchesgoesdoeswashesbrushes(3)动词末尾y前为辅音:将y改为i加es:study→studiesfly→fliescarry→carriescry→cries但在y前如果为元音则直接加s:buyssays四．时间标志：always总是,usually经常,often经常,sometimes有时,every…每~一般现在时练习题（１）I.用下列单词的适当形式填空1.Weoften___________(play)intheplayground.2.He_________(get)upatsixo’clock.3.__________you_________(brush)yourteetheverymorning?4.What________________(do)heusually________________(do)afterschool?5.Danny________________(study)English,Chinese,maths,scienceandArtatschool.6.Mikesometimes__________(go)totheparkwithhissister.7.Ateightatnight,she__________(watch)TVwithhisparents.8.________Mike________(read)Englisheveryday?Ⅱ单项选择。()1.youhaveabook?A.DoB.AreC.IsD.Have()2.Theyonafarm.A.workingB.isworkC.workD.isworked()3.DoesPeterliketowatchTV?A.Yes,helikeB.No,hedoesn’tC.Yes,he’dlikeD.No,helikes()4.Shedoesn’therhomeworkintheafternoon.A.doingB.todoC.doesD.do()5.HowMr.BrowntoAmerica?A.do,goB.is,goC.does,goD.does,goes()6.Where’smycamera?Iit.A.amnotfindingB.amnotseeingC.can’tfindD.can’tlookat()7.Howhegotowork?Hetoworkbybike.A.does,goB.do,goesC.do,goD.does,goes()8.youusuallylateforschool?No,.A.Do,IamB.Does,notC.Are,I’mnotD.Are,Iaren’t()9.shehomeatsixeveryday?A.Is,leaveB.Does,leaveC.Is,leavesD.Does,left()10.Mr.YangEnglishthisterm.A.teachesourB.teachesusC.teachsusD.teachourⅢ改句子1.Doyouoftenplayfootballafterschool?(改为肯定句)2.Ihavemanybooks.（改为否定句）3.GaoShan’ssisterlikesplayingfootball.（改为否定句）4.ShelivesinasmallcitynearNewYork.（改为一般疑问句）5.IwatchTVeveryday.（改为一般疑问句）6.Hehasfourlessons.（改为否定句）7.Aplaneisfast.否定句：一般疑问句：8.IusuallyplayfootballonFridayafternoon.否定句:一般疑问句:划线提问