辽宁省沈阳市牛津深圳版八年级英语上册课件： Unit 5 Educational exchanges1—— grammar(共37张PPT).pptVIP

AchildrenssongHaveyoueverseenthehorsefly?Haveyoueverseenashoebox?Haveyoueverseenthechimneysweep?Haveyoueverseenafishmop?

8AUnit5EducationalExchangesGrammarThepresentperfecttense(I)

I’vewornlotsofshoes.

I’veneverseenamammothsleeplikethat.

I’veneverseenyoubefore.

I’veforgottenyourname.

YourethebestteacherI’veeverhad.

Erichaslearntabitoftaichi.Sarahhasmademanynewfriends.EricSarah

havehas

规则动词过去式的构成方法：1.大多数规则动词,在词尾加-ed构成过去式。allow-allowedvisit-visited2.以-e结尾的规则动词，在词尾加-d构成过去式。live-livedlike-liked3.以辅音字母加-y结尾的规则动词，把-y变成i，再加-ed，构成过去式。study-studiedcarry-carried4.以重读闭音节结尾的规则动词,双写最后一个辅音字母再加-ed构成过去式。plan-plannedstop-stopped

规则动词过去分词的构成方法：1.大多数规则动词,在词尾加-ed构成过去分词。allow-allowed-allowedvisit-visited-visited2.以-e结尾的规则动词，在词尾加-d构成过去分词。live-lived-livedlike-liked-liked3.以辅音字母加-y结尾的规则动词，把-y变成i，再加-ed，构成过去分词。study-studied-studiedcarry-carried-carried4.以重读闭音节结尾的规则动词,双写最后一个辅音字母再加-ed构成过去分词。plan-planned-plannedstop-stopped-stopped

不规则动词变过去分词：type原型过去式过去分词costcostcostbeatbeatbeatencomecamecomegetgotgotfallfellfallenAAAAABABAABBABC

hurtbuybecomebeathidehurt→hurt→hurtbuy→bought→boughtbecome→became→becomebeat→beat→beatenhide→hid→hiddenAAAABAABCABBAAB

SarahhasseenBigBen.seeBigBenasSarahMakesentences

Jackhashadapicnicwithhishostfamily.haveapicnicwithhishostfamilyJack

makemanynewfriendsIhavemademanynewfriends.

Ihavenotmademanynewfriends.Yes,Ihave.No,Ihavent.Haveyoumademanynewfriends?肯定句否定句疑问句回答Ihavemademanynewfriends.

Hehasnotmademanynewfriends.Yes,hehas.No,hehasn’t.Hashemademanynewfriends?肯定句否定句疑问句回答Hehasmademanynewfriends.

肯定句：主语+have/has+done...否定句：疑问句：回答:主语+haven’t/hasnt+done...Have/Has+主语+done...？Yes,主