【文档说明】教科版英语四年级下册《Unit 9 We're Taking Photos--现在进行时总结》PPT课件(共15页).ppt,共(15)页,649.500 KB,由小喜鸽上传
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Unit9We'reTakingPhotosPresentContinuousTense现在进行时总结现在进行时主语+am/is/are+doing(动词+ing)表示某人正在做某事的时候用现在进行时。现在进行时怎么构成?什么时候用现在进行时
?主语be动词行为动词(+ing)Iam/‘mdrawingapicture.HeSheItis/‘ssleepingintheroom.YouWeTheyare/‘rewatchingafilm.这种时态的句子由
两种动词组成。be-ingPresentcontinuoustense现在进行时直接在动词后面加ing。goinggoingdotalkwatchplayreadlookdoingtalkingwatchingplayingreadinglookingPresen
tcontinuoustense现在进行时Practice去e再加ing。comeingcominghavehavingwritewritingrideridinglivelivingdrivedrivingmovemovingPresentcontinuou
stense现在进行时Practice以重读、“辅元辅”结构结尾的动词需要双写最后一个字母再加-ing。swimmingswimmingjogjoggingsitsittingdropdroppingrun
runninggetgettingputputtingPresentcontinuoustense现在进行时Practice写出下列动词的现在分词sleepinvitechatlookwriteswimplaycomerunwaitpra
cticeshopstudyseevisitlielearntieinginginginginginginginginginginginglyingtyingtingmingningping1.直接加ing;2
.去e加ing(除ee字母组合);3.双写加ing;4.改ie为y加ingbe-ingnot主语be动词行为动词(+ing)Iamdrawingapicture.notNegativesentences否定句HeSheItissleepingintheroom.not(isn’t)YouWeThe
yarewatchingafilm.not(aren’t)Questions一般疑问句将be动词放在句子开头成为一般疑问句。Yes,sheis./No,sheisn’t.Yes,theyare./No,theyaren’t.Cherryisridingabicycle.IsC
herryridingabicycle?Theyarecooking.Aretheycooking?Questions特殊疑问句Questionswithquestionwords:Whatareyoudoing?Whyisthe
babycrying?Whenarethechildrenleaving?Whereareyougoing?e.g.现在分词的构成1.直接加–ingeg:looklooking2.如果动词末尾有不发音的e,则去e加-ing3.以动词闭音节结尾,且末尾只有一个辅音字母的,
应双写此字母,再加–ing。eg:sitsitting口诀教你学doing进行时很好记,be加动词-ing;直加双写去哑e,分词构成须仔细;别说be无词义,主语和它最亲密;变疑问be提前,否定not再后添;何时要用进行时look
,listen,now标志。atpresent目前;现在atthemoment此刻;现在rightnow此刻;现在now现在Foryourtry.e.g.I__________myhomeworknow.(do)‘m/amdoing1You___________anEn
glishlesson.(have)2Thelittleboy_____________.(swim)3TonyandBetty____________inthelibrary.(read)4Theman____________astory.(write)5I_____
_______withmysister.(run)6We____________tennisnow.(play)7Thecat____________somemilkrightnow.(drink)‘re/areh
aving‘s/isswimming‘re/arereading‘s/iswriting‘m/amrunning‘re/areplaying‘s/isdrinking