八年级下Module 4 Seeing the doctor Unit 3 Language in use 课件（共23张PPT）.pptxVIP

现在完成时的标志：

for+时间点

since+时间段;Module4;Presentperfect(3);LilyhaslearnedEnglishforfiveyears.

LilyhaslearnedEnglishsincefiveyearsago.;试着说说哪些是点时间，哪些是段时间：;;★延续性动词表示能持续一段时间的动作或表示状态的词，如work，stay，live，learn等。;①用相应的延续性动词替换句中的非延续性动词，如：

borrow→kept

buy→had

become/come/go→be

puton→wear;②将非延续性动词转换为be+介词短语，如：

begin/start→beon

finish→beover

gotoschool→beinschool

join→bein+组织机构;④用be+adj./adv.结构替换非延续性动词，如：

close/open→beclosed/open

come/goback/return→beback

comehere→behere

fallasleep→beasleep

finish/end→beover

marry→bemarried

die→bedead;现在完成时;Tip1:在现在完成时的句子中，表示持续的动作或状态时，动词通常与表示时间段的时间状语连用；而表示已经完成时，动词不能与表示时间段的时间状语连用。;Workinpairs.Askandanswerthequestions.;;;1.-Ifellilltwodaysago.

-Soyouve______illfortwodays?

-Thatsright.

2.-Isawthedoctorthreedaysago.

-Soyouhavent_______herinthelast

threedays?

3.-Illwalktoschoolforthefirsttime

tomorrow.

-Soyouvenever_______toschool

before?

4.-Icameintohospitaltwodaysago.

-Soyouvealready_____inhospitalfor

twodays?

5.-Howlong_____you_____aheadache?

-Oh,itbeganabouttwohoursago.

;ForalongtimeJohndidnotfeel(1)_________.Heoftenhad(2)_________andcolds.Hewenttoseeadoctor.Thedoctortoldhimtotakemore(3)_________andstopeating(4)__________.Sohestartedridingabiketoschool.Atfirst,hefelttiredand(5)_________.Thenhegotfitterandstartedenjoyingit.Sincehestartedridingabike,hehasnothada(n)(6)_________andhehasnothada(n)(7)____________sincehestoppedeatingfastfood.;Thatsit.;Readthepassageandmatchtheproblemswiththeadvice.;Listenandcompletethepassage.;1.Workingroups.Doasurveytofindwhatexerciseyourgroupmembersdoandtheeffects.;2.Decidewhatexerciseisthemostsuitableforyou.;