PEP小学英语总复习—四种时态的区分与运用.pptx

1、说学生：六年级上学期基础中上的状元班学员或一对一学员。2、说教材：现在进行时、一般现在时、一般将来时已在六年级之前学了，但很多同学未能完全掌握。六年级上册U10出现了一般过去时，学生处于初学阶段。3、教学重点：学生能区分，并掌握四种时态的标志词和基本结构。4、教学难点：易错点的分析讲解。5、说学法：互动式探究学习第1页/共24页小学的时态分几种？一、现在进行时（四年级下）二、一般现在时（五年级上）三、一般将来时（五年级上）四、一般过去时（六年级上）第2页/共24页一、现在进行时1、概念：现在（说话的瞬间）正在进行或发生的动作，强调“此时此刻”。2、标志词：look看；listen听；now现在；3、基本结构：be+doing（注意：人称不同，be的形式也不同）E.g.Heisreading.Theyaretalkingnow.第3页/共24页现在分词的变法规律：1、一般在动词词尾加上-ing,E.g.jump-jumping2、以不发音字母e结尾的动词，先去e，再加-ing.E.g.have-havingwrite-writing3、重读闭音节结尾的词，要先将词尾的辅音字母双写，再加上-ing.E.g.sitsittingput-putting第4页/共24页1.I _(write,am writing,is writing,are writing)a letter now.2.Look,it _(begin,is beginning,am beginning,are beginning)to rain.3.They _(study,is studying,am studying,are studying)medicine at the Medical Institute of Chengde these days.4.He _(teach,am teaching,is teaching,are teaching)an English lesson at this time.第5页/共24页二、一般现在时：二、一般现在时：1 1、概念、概念：经常、反复发生的动作或行为及现在的某种状况。2 2、标志词：、标志词：always,usually,often,sometimes,every week(day,year,month),once a week,on Sundays,etc.3 3、基本结构、基本结构：be动词；行为动词e.g：He goes to school every day.They go to school every day.He is a teacher第6页/共24页当主语是第三人称时，谓语动词要用第三人称单数形式，加-s/es-s/es。除此之外都用动词原形。第7页/共24页动词第三人称单数形式变化规则 第8页/共24页规则规则例子例子一般在词尾加一般在词尾加-s-sPlayPlayplays plays leaveleaveleavesleavesswimswimswimsswims以字母以字母s,x,ch,sh,os,x,ch,sh,o结尾的词结尾的词加加-es-es，读，读/iz/,/iz/,如果动词原形如果动词原形词尾已有词尾已有e,e,则只加则只加-s-s。pass pass passes passes fixfixfixesfixesteachteachteaches teaches wishwishwisheswishesdododoesdoes以辅音字母加以辅音字母加y y结尾的词结尾的词，先变，先变y y为为i,i,再加再加-es,-es,读读/z/z/studystudystudies studies carrycarrycarriescarriesflyflyfliesflies第9页/共24页1.1.He_(be,am,is,are)a teacher at No.2 Middle School.2.2.He_(have,has)classes in the afternoon.3.3.He_(get,gets)up at half past six every morning.4.4.He always _(come,comes)to school on time.5.5.He _(study,studies)very hard at his lesson.6.6.One and two _(be,is,are)three.7.7.Blue and yellow _(make,makes)green.8.8.The earth _(move,moves)round the sun.第10页/共24页三、一般将来时1、概念：表示将要发生的动作或存在的状态及打算、计划或准备做某事。2、标志词：tomorrow,nextday(week,month,year),soon,thedayaftertomorrow（后天）等。3、基本结构：1）begoingto+do；（be有人称变化）2）will+do.3）shalldo（第一人称）e.g：Imgoingtohaveapicnicthisweekend.第11页/共24页1、There _some showers this afternoon.A will be B will have C is going to be D are going to have 2、It _my brothers birthday tomorrow.She _a party.A is going to be;will have B will be;is having C will be;is going to have D will have;is going to be3、Li Ming is 10 years old now,next year he _11.A is B is going to be C will be D will to be 第12页/共24页四、一般过去时第13页/共24页1 1、概念：、概念：过去过去某个时间里发生的动作某个时间里发生的动作或状态；或状态；过去过去习惯性、经常性的动作、习惯性、经常性的动作、行为。行为。2、标志词：1）yesterday或以其构成的短语：yesterday morning(afternoon,evening)等；2)由“last+一时间名词”构成的短语：last night,last year(winter,month,week)等；3)由“时间段+ago”构成的短语：a moment ago,a short time ago,an hour ago等；4)其它：just now等第14页/共24页3、基本结构：be动词（注意be的人称变化，用过去式）IwasintheclassroomyesterdaymorningHewasintheclassroomyesterdaymorningTheywereintheclassroomyesterdaymorning行为动词第15页/共24页动词过去式形式变化规则 第16页/共24页构成规则构成规则例子例子一般在动词原形末尾加-edlooklooked playplayedworkworked结尾是e的动词在末尾加-dlikeliked livelivedhopehoped末尾只有一个辅音字母的重读闭音节，先双写这个辅音字母，再加-edplanplanned stopstoppeddropdropped结尾是“辅音字母y”的动词，先变“y”为“i”再加-edstudystudied worryworriedcrycried第17页/共24页不规则动词过去式过去时练习：写出下列动词的过去式isam_fly_plant_are_drink_play_go_make_does_dance_worry_ask_第18页/共24页am,is-wasare-weredo-didsee-saw,say-saidgive-gaveget-gotgo-wentcome-camehave-had,eat-atetake-took,run-ran,sing-sangput-put,make-made,read-readwrite-wrote,draw-drew,drink-drank,fly-flew,ride-rodespeak-spokesweep-swept,buy-boughtswim-swam,sit-satbringbroughtcan-couldcut-cutbecome-becamebegin-begandraw-drewfeel-feltfind-foundforget-forgothear-heardkeep-keptknow-knewlearn-learnt（learned）leave-leftlet-letlose-lostmeet-metsleep-sleptteach-taughttell-toldwrite-wrotewake-wokethink-though第19页/共24页1.1.He_(be,was,were,been)here a moment ago.2.2.They _(be,was,were,been)here just now.3.3.The scientists _(leave,leaves,leaved,left)for America yesterday.4.4.Last week we _(visit,visited)the Science Museum.第20页/共24页历年真题例1（2012年小升初大联盟考试考题）1、Annoften_(watch)TVathome,She_(watch)againlastnight这题考察动词的时态。第一个空，关键词是often和Ann，判断应该用一般现在时的第三人称单词。Watch后加es。第二个空，关键词lastnight，判断应该用一般过去时，Watch后加ed标准答案watcheswatched第21页/共24页真题回顾1、_(not eat)in the library,Tonny.2、_ your dad often _(water)the flowers on weekdays.3、Be quiet please,the children_(have)lesson in the classroom.4、She _(be)short in 2002,but now she _(look)taller.5、Miss Chen _(start)from Macao two hours ago.All of the students_(wait)her here now.第22页/共24页课后思考与讨论1、四种时态的肯定句如何转化为否定句？2、四种时态的肯定句如何转化为一般疑问句？3、四种时态的肯定句如何转化为特殊疑问句？第23页/共24页感谢您的观看。第24页/共24页