英语人教版八年级下册现在完成时.pptx

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1、Unit9YoyoNO.41MiddleSchool陈丹妮精河县八家户农场中学现在完成时has/havedone定义现在完成时态结构标志词例题头脑风暴present(now)futurepast现在完成时(presentperfecttense)用法一、从过去开始的某一动作持续到现在，还有可能继续持续下去。（常以for、since+时间为标志）时间轴timeline现在完成时的定义:have/has+done动词过去分词规则动词的变化v+ed不规则动词的变化do-did-done现在完成时的结构规则动词的原形、过去式、过去分词4、st

2、op______________plan______________3、study______________carry______________2、live____________arrive______________1、talk____________finish______________talkedtalkedfinishedfinished(1)直接+“ed”livedlivedarrivedarrived(2)直接+“d”studiedstudiedcarriedcarried(3)变“y”为i+“ed”stopped

3、stoppedplannedplanned(4)双写+“ed”不规则动词的原形、过去式及过去分词1do-________-_______2catch-________--________3tell-________--_________4stand-______--______5get-_______--________6hurt-________--_________7put-_______--_________8come-_______--________9run-________--_________10begin-______

4、__--_________11swim-_________--________12draw-_________--_________13know-________--__________14do-_______--________15go-_______--_________16give-_______--_______17see-_______--________18drive-_______--________19take-______--_______20be-________--________21eat-_____--___

5、___22write-_______--______23speak-______--________24steal-_______--________25tear撕开-_______--________diddonecaughtcaughttoldtoldstoodstoodgotgothurthurtputputcamecomeranrunbeganbegunswamswumdrewdrawnknewknowndiddonewentgonegavegivensawseendrovedriventooktakenwas,werebee

6、nateeatenwrotewrittenspokespokenstolestolentoretornPleaserememberthem.不规则动词的过去式以及过去分词teach—taught—taughtABB巧记规律become—became—becomeABAput–put–putlet—let–letAAAeat—ate—eatenABCAAAcost-cost-costread-read-readput-put-putcut-cut-cutlet-let-letset-set-set设置hit-hit-hit击打hurt-

7、hurt-hurt规律：结尾字母一般是t或d。特殊：read-read-read[ri:d]-[red]-[red]。run-ran-runcome-came-comebecome-became-becomeovercome-overcame-overcome克服ABA规律：中间元音字母的变化ABB(含规则动词)sit-sat-satwin-won-wonshine-shone-shonehold-held-heldfind-found-foundhang-hung-hungoversleep-overslept-overslept睡

8、过头规律：改变单词中间元音字母ABCtake-took-takengive-gave-givenfall-fell-falleneat-ate-eatenwrite-wrote-writtenspeak-spoke-s