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1、Lesson 20 Looking at PhotosLesson 20 Looking at PhotosDo you remember?你记得吗？What are you doing,Li Ming?你正在做什么李明？Im getting ready to go home next week.我正在为下周回家做准备。Look!I found these photos!看！我发现了这些照片！find/faind/v.发现，找到 过去式为foundMay I see them?我可以看看他们吗？Sure.当然。Look at this photo.Danny wanted to play ba
2、sketball with a ping-pong ball!看这张照片。丹尼想用乒乓球打篮球。Danny said the basketball was heavy.丹尼说篮球很重。Then I taught him to play ping-pong,but he hit his hand.Poor Danny!然后我教他打乒乓球，但是他打到了他的手。可怜的丹尼！Look,Li Ming!Heres a photo of you,Danny and Santa.Do you remember?看，李明！这里有一张你、丹尼和圣诞老丹尼和圣诞老人的照片。你人的照片。你记得吗？记得吗？Oh,ye
3、s!I went to the shop with Danny.We bought Christmas gifts.Then we saw Santa.We talked to Santa.哦，是的！我和丹尼去了商店。我们买了圣诞礼物。然后我们看见了圣诞老人。我们和圣诞老人交谈了。go(went)buy(bought)see(saw)talk(talked)say(said)want(wanted)laugh(laughed)ask(asked)get(got)have(had)win(won)lose(lost)play(played)invite(invited)规则动词不规则动词构成读音
4、知识结构知识结构知识结构知识结构构成构成用法用法常用时间常用时间动词的过去式动词的过去式1、表示过去某个时、表示过去某个时 间发生的动作或间发生的动作或存在的状态。存在的状态。2、表示过去经常或、表示过去经常或 反复发生的动作。反复发生的动作。yesterdaylast nightin 1990two days ago规则动词过去式的构成规则动词过去式的构成构成规则例词1、一般在动词原形末尾加 ed look looked play played2、结尾是 e 的动词加-d like liked invite invited3、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e
5、d stop stopped4、结尾是“辅音字母+y”的动词，先变“y”为“i”再加ed study studied规则动词规则动词-ed的读音的读音说明：1、清念/t/，即 ed 在清辅音后面念/t/,例：asked helped laughed talked2、元浊/d/,即 ed 在元音，浊辅音后面念/d/,例：played called 3、/t/d/之后念/id/,即 ed 在/t/d/音后面念/id/例：wanted needed不规则动词表不规则动词表原形原形 过去式过去式am/is wasare weretake tooktell toldbring broughtbuy bo
6、ught lose lostput put原形原形 过去式过去式go wenthave haddo didsee sawsay saidwin wonget gotread read规则与不规则动词变化汇总规则与不规则动词变化汇总:am is(was)are(were)am is(was)are(were)become(became)begin(began)become(became)begin(began)blow(blew)buy(bought)catch(caught)blow(blew)buy(bought)catch(caught)come(came)come(came)draw(d
7、rew)drive(drove)eat(ate)draw(drew)drive(drove)eat(ate)fall(fell)feed(fed)fell(felt)fly(flew)forget fall(fell)feed(fed)fell(felt)fly(flew)forget(forgot)(forgot)get(got)give(gave)go(went)get(got)give(gave)go(went)grow(grew)grow(grew)have has(had)ride(rode)have has(had)ride(rode)know(knew)keep(kept)mak
8、e(made)know(knew)keep(kept)make(made)meet(met)meet(met)run(ran)say(said)see(saw)sing(sang)run(ran)say(said)see(saw)sing(sang)sit(sat)sit(sat)课堂练习课堂练习1 1填出下列单词过去式：填出下列单词过去式：clean wash talk clean wash talk want laugh want laugh am is am is are are 2 2运用单词正确时态填空运用单词正确时态填空I_(go)to school by bike yesterd
9、ay.I_(go)to school by bike yesterday.Danny usually_(go)to school by bus.Danny usually_(go)to school by bus.They never _They never _（gogo）to schoo on foot.to schoo on foot.cleanedwashedtalkedwantedlaughedwaswerewentgoesgo用所给的词的正确形式填空。用所给的词的正确形式填空。1 1、Look at _(this)pictures.Look at _(this)pictures.2 2、I have much work _(do).I have much work _(do).3 3、Li Ming taught me _(play)Li Ming taught me _(play)ping-pong.ping-pong.4 4、I always_(do)my homework.I always_(do)my homework.5 5、Jenny wants _(go)to the Jenny wants _(go)to the park Steppark Steptheseto doto playdoto go