六年级下册英语-四种时态语法讲解 版ppt课件

1、四种时态讲解小学的时态分几种？小学的时态分几种？ 一、如今进展时四年级下 二、普通如今时五年级上 三、普通未来时五年级下 四、普经过去时五年级下 过去如今未来一般过去时一般如今时如今进展时一般未来时时间轴一、普经过去时1 1、概念：、概念：过去某个时间里发生的动作或形状；过去习惯性、过去某个时间里发生的动作或形状；过去习惯性、经常性的动作、行为。经常性的动作、行为。2 2、标志词：、标志词：1 1yesterdayyesterday或以其构成的短语：或以其构成的短语：yesterday yesterday morning(afternoon, evening)morning(afternoon

2、, evening)等；等；2) 2)由由“last+last+一时间名词构成的短语：一时间名词构成的短语：last night, last night, last year (winter, month, week)last year (winter, month, week)等；等；3) 3)由由“时间段时间段+ago+ago构成的短语：构成的短语：long long agolong long ago，a a moment ago, a short time ago,three days agomoment ago, a short time ago,three days ago等；等；4

3、) 4)其它：其它：just nowjust now等等普经过去时3、根本构造： be动词留意be的人称变化，单数用was，复数用were I was in the classroom yesterday morning He was in the classroom yesterday morning They were in the classroom yesterday morning 行为动词动词过去式规那么变化和不规那么变化 I visited my grandparents yesterday.1动词过去式规那么变化构成规则构成规则例子例子一般在动词原形末尾加-edlooklook

4、ed playplayedworkworked以不发音的e结尾的动词加-dlikeliked dancedancedlivelived以辅元辅结尾的重读闭音节，双写尾字母，再加-edplanplanned stopstoppeddropdropped结尾是“辅音字母y”的动词，改“y”为“i”再加-edstudystudied worryworriedcrycried2动词过去式不规那么变化要牢记： am,is-was are-were do-did see-saw, say-said give-gave get- got go-went come-came have-had, eat-ate

5、 take-took, run-ran, sing-sang put-put, make-made, read-read write-wrote, draw-drew, drink-drank, fly-flew, ride-rode speak-spoke sweep-swept, buy-bought swim-swam, sit-sat bringbrought can-could cut-cut become-became begin-began draw-drew feel-felt find-found forget-forgot hear-heard keep-kept know

6、-knew learn-learnt learned leave-left let-let lose-lost meet-met sleep-slept teach-taught tell-told write-wrote think-though二、普通如今时普通如今时：普通如今时：1 1、概念：经常、反复发生的动作或行为及如今、概念：经常、反复发生的动作或行为及如今的某种情况。的某种情况。2 2、标志词：、标志词：always, usually, often, sometimes, every week (day, always, usually, often, sometimes, ev

7、ery week (day, year, month), on Sundays, etc.year, month), on Sundays, etc.3 3、根本构造：、根本构造：bebe动词动词(is/am/are)(is/am/are)；行为动词行为动词( (根本用原形，但主语三单动词要加根本用原形，但主语三单动词要加s/es)s/es)e.ge.g： I am a teacher. ( I am a teacher. (如今的形状如今的形状) ) He goes to school every day. He goes to school every day. Katie often h

8、as breakfast at 7:15. Katie often has breakfast at 7:15. The earth moves around the sun. ( The earth moves around the sun. (科学现实科学现实或真理或真理) ) 普通如今时常以动词原形表示，但当主语是第三人称时，谓语动词要用第三人称单数方式，加-s/es。动词第三人称变化规那么：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

9、, sh, os, x, ch, sh, o结尾的词加结尾的词加-es-es，读，读/iz/,/iz/,如果动词原形词尾如果动词原形词尾已有已有e, e,则只加则只加-s -s。pass pass passes passes watchwatchwatcheswatchesteachteachteaches teaches washwashwasheswashesdododoesdoes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 carrycarrycarriescar

10、riesflyflyfliesflies三、如今进展时如今进展时如今进展时1、概念：如今说话的瞬间正在进展或发生的动作，强调“此时此刻。2、标志词：look 看 ；listen听 ；now如今；3、根本构造： be+动词ing也叫如今分词 主语不同，be的方式也不同 Look！It is raining outside. Listen! She is singing an English song. We are reading storybooks now.如今分词的变法规律： 1、普通在动词词尾加上-ing ,E.g. jump-jumping 2、以不发音字母e结尾的动词，先去e，再加-

11、ing. have-having/write-writing/dance-dancing/ take-taking/make-making/come-coming 3、重读闭音节结尾的词，双写尾字母，再加上-ing. sit sitting/put-putting/swim-swimming/ run-running/skip-skipping/hop-hopping四、普通未来时普通未来时普通未来时1、概念：表示将要发生的动作或存在的形状及计划、方案或预备做某事。2、标志词：tomorrow, next day(week, month, year),soon, the day after tomorrow后天等。3、根本构造：1be going to + 动词原形；be有人称变化2will+ 动词原形. 3shall 动词原形 第一人称Im going to have a picnic t