1、Unit 7 What did you do yesterday?,一、写出下列词的过去式。,clean,cleaned,played,see,do,play,did,come,came,saw,work worked cook cooked help helped clean cleaned open opened play played want wanted visit visited collect collected love loved dance danced live lived try tried cry cried study studied do did see saw
2、come came,规则动词过去式规则,1、一般在动词原形末尾加 ed work - workedcook - cooked help - helped play - played2、结尾是 e 的动词只加 - d live - livedlove - loveddance- danced,4、末尾只有一个辅音字母的 重读闭音节词，先双写这 个辅音字母，再加ed,stop - stopped plan- planned trip-tripped,3、结尾是“辅音字母+y”的词，先变“y”为“i”再加ed,study- studied try-tried cry-cried,1.过去式与原形一样
3、：,让 letlet （你）,放putput (下）,砍,剪cut cut (刀）来,读书readread,（以免）受伤hurt hurt,花钱 cost cost,跑runran,过来 come came,坐下sitsat，,给givegave （杯）,喝drinkdrank （的），,开始beginbegan,唱歌singsang,游泳swimswam,2.变元音字母为a:,3.中间去e末尾加t：sleepslept 睡觉 sweepswept 拖地keepkept 保持 feelfelt 感觉,不规则动词表,2.riderode骑(车) 3.drivedrove开(车)”,1.写 wri
4、tewrote,4.把i 变成o,5 想thinkthought， 买 buybought,6 “抓” catchcaught“教学” teachtaught,7. ow/aw 改为 ew,建造buildbuilt， 花 钱/时间spendspent 借给别人lendlent， 寄sendsent,（装备）ought,带着bringbrought， 打仗 fightfought,aught是关键,知道know knew， 长大growgrew，扔throwthrew， 画画drawdrew,8结尾d变t：,began drank gave sang swam sat,字母“ i ”变成“ a
5、”,开始,喝,给,唱歌,坐,游泳,begin drink give Sing Swimsit,fly flew 2、画 draw drew blow blew 4、种植 grow grew throw threw 6、知道know knew,三、字母“ew”结尾,1、飞,3、吹,5、扔,1、感觉 feel felt 2、保持 keep kept 3、睡觉sleep slept 4、扫地 sweep swept,四、字母“pt”结尾,1、买 buy bought 2、想 think thought,1、抓 catch caught 4、教 teach taught,六、字母“aught”结尾,五
6、、字母“ought”结尾,清念 /t/ ,元浊/d/ ; /t/ /d/ 之后念/id/,规则动词-ed的读音,说明： 1、清念 /t/ ，即 ed 在清辅音后面念 /t/ ,例：finished helpedpassed cooked 2、元浊 /d/ ,即 ed 在元音，浊辅音后面念 /d/ ,例：borrowed enjoyedcalled moved 3、/t/ /d/ 之后念 /id/ , 即 ed 在 /t/ /d/ 音后面念 /id/例：wanted shoutedneeded counted,说明： 1、清念 /t/ ，即 ed 在清辅音后面念 /t/ , 例：finished
7、 helpedpassed cooked,元浊 /d/ ,即 ed 在元音，浊辅音后面念 /d/ ,例：borrowed enjoyedcalled moved,、/t/ /d/ 之后念 /id/ , 即 ed 在 /t/ /d/ 音后面念 /id/例：wanted shoutedneeded counted,动词过去式转换练习 将下列动词变为过去式,返回上页,订正答案,1. look 2. live 3. stop 4. carry 5. hope 6. trip 7. call 8. finish 9. want 10.are 11. go 12.have 13.do 14.get e 1
8、6.say 17.see 18.put 19.eat 20.take 21.read,返回上页,返回首页,返回练习,动词过去式转换练习 答 案,1. look looked 2. live lived 3. stop stopped 4. carry carried 5. hope hoped 6. trip tripped 7. call called 8. finish finished 9. want wanted 10.are were 11.go went 12.have had 13.do did 14.get got e came 16.say said 17.see saw 18.put put 19.eat ate 20.take took 21.read read,
