六年级下册一般过去时用法讲解教案

教学目标：1、 掌握Letlearn部分的新单词。2、 熟练运用What did you do last weekend?进行问话3、 了解了解/o/ao/发音规则及相应的单词发音规则及相应的单词4、 掌握一般过去时的用法及其变化规则。5、 掌握本单元的重点句型及其转换形式。教学内容：1、 复习Letlearn部分的新单词。2、 重点句型归纳。3、 练习单元对话。4、 讲解/o/ao/发音规则及相应的单词 4、了解一般过去时四种用法。5、总结一般过去时动词的变化规则。6、巧记“五种类型”不规则英语动词变化的方法。重点难点：1、复习Letlearn部分的新单词。5、 2、熟练运用单元重点句型进行问话。 3、掌握一般过去时的用法及其动词的变化规则。教学策略与方法：课题一、 知识回顾 1、unit2词语短语归纳总结 Translation havea_喉咙痛2.havea_牙痛3.havea_发烧4.havea_感冒5.havea_头痛6.havea_耳痛 7._厘米8._公斤9._英尺10_吨11_更滑稽的 12._每个13. 无聊的 14.劳累的 15.兴奋的 16.生气的 17.高兴的 18.忧伤的 19、吃药 20、休息一会儿 2、重点句型讲解 A、Whats the matter?-Whats the matter with+人称代词或人名 =Whats wrong?-Whats wrong with+人称代词或人名 I feel/am+adj或I have a cold/fever She/He feels/is+adj或She/He has a cold/fever B、How do I /you feel?-转第三-How does she/he feel? Im+adj或I feel+adj C、How are you feeling?-转第三-How is she/he feeling? Im feeling good/bad或Much better. Shes feeling good/bad或Much better. D、How are you,Sarah? You look sad today. Yes,becauseI failed the math test. Dont worry,you can do it better next time,believe youself please. Thats all right,I can try my best next time.Thank you for your encouraging,Lily. Youre welcome. E、Where are you going?或Wheres Lily going? We/Im going to have a football match Shes going to the library. F、If you are healthy,you are in the PINK. If you are sad, you are feeling BULE. If you are angry, you are seeing RED. If you are very very sad, you are in a BLACK mood. 练一练： Sarah: You look so Mike:Yes,because I Sarah: ,I believe you can di it better next time,right? Mike:Of course.Thank you for encouraging,Sarah. Sarah:You are welcome,just believe Doctor： Liu:I feel sick. Doctor：Let me see.oh, you might get the flu. Liu:Really?What should I do,Sir? Doctor：Dont worry, .Stay in bed for a few days.You will feel better soon. Liu:Ok,I know, A、you are having a fever. B、Whats the matter? C、take some medicine and drink hot drinks. D、I have a cold. E、thank you. 3、讲解/ao/o/的发音规则，及其常见单词 Pronunciation /o/ coat know hole load soap rose /ao/ count now house loud south arouse 将下列按发音进行单词分类 1、a、know b、now c、no d、coat 2、a、play b、way c、may d、boy 3、a、hole c、playground c、count d、south 4、复习unit3“letlearn”的新单词 1) 播放录音，学生边听边跟读。 2）学生读单词，教师纠正。 3) 本单元句型归纳。 4) 师生对话练习：What did you do last weekend? 二、 知识传授一般过去时四种用法 表示在过去某个时间发生的动作或情况。 例如：Iwenttoschoolat7:00yesterdaymorning.我昨天早晨七 点去上学。表示在过去某个时间存在的状态。 例如：Shewasnotathomelastnight.她昨晚八点没在家。表示在过去经常或反复发生的动作，常和often(经常)、always(总是)、sometimes(有时)等表示频率的时间状语连用。 例如：Heoftenhadlunchatschoollastmonth.他上个月经常在学校吃午饭。表示已故的人所做的事情或情况。 例如：BaJinwrotealotofnovelsforus.巴金写了很多部小说。四种时间状语 yesterday及相关短语。 例如：yesterdaymorning/afternoon/evening昨天上午/下午/晚上。“last+时间状语”构成的短语。 例如：lastnight/month/spring/year昨晚/上个月/去年春天/去年。“一段时间+ago”组成的短语。 例如：threedaysago三天以前fouryearsago四年以前。“介词+时间名词”组成的短语。例如：in1999在1999年；onthemorningofDecember25th在12月25号早上。四种谓语动词的表现形式 be动词的过去式was、were. 例如：Shewasateacherfiveyearsago.她五年前是一名教师。 行为动词的过去式，分为规则动词和不规则动词两种。规则动词的过去式的构成遵循以下四个规则：1） 直接在动词后加ed，例如：help-helped;want-wanted等；2） 以不发音的字母e结尾时，去掉e加ed(即直接加d),例如：like-liked;use-used等；3） 以辅音字母y结尾时，把y变成i再加ed,例如：carry-carried;study-studied等；4）以重读闭音节结尾，双写最后一个辅音字母再加ed,例如：stop-stopped;shop-shopped等。而不规则动词的过去式则需要我们认真下工夫去记了，例如：go-went;come-came;buy-bought等。连系动词的过去式。 例如：become-becameShebecameangry.她生气了。情态动词的过去式+动词原形。 例如：Icouldswimattheageoffive.我五岁时就会游泳了。四种句式的构成 一般过去时态的肯定句式“主语+动词过去式+其它”例如：Jennyboughtaskirtyesterday.詹妮昨天买了一件短裙。 一般过去时态的否定句式“主语+didnt+动词原形+其它”例如：Jennydidntbuyaskirtyesterday.詹妮昨天没有买短裙。 一般过去时态的一般疑问句式“Did+主语+动词原形+其它”例如：DidJennybuyaskirtyesterday?詹妮昨天买短裙了吗？ 一般过去时态的特殊疑问句式“疑问词+did+主语+动词原形+其它”例如：WhatdidJennybuyyesterday?詹妮昨天买了什么？总结： 一般过去时动词的变化规则 1一般在词尾加“-ed” help-helped 2以不发音e结尾的词加“-d” live-lived 3以“元音字母y”结尾时，加“-ed”；以“辅音字母y”结尾时，变 y为i，再加“-ed” play-played study-studied- 4以重读闭音节结尾，末尾只有一个辅音字母的词，要双写这个辅音字母，然后再加ed。 stop-stopped 一般过去时不规则动词的过去式变化规则 1、中间去e末尾加t，如： keepkept，feelfelt，sleepslept，sweepswept 2、结尾d变t，如： buildbuilt，lendlent，sendsent，spendspent 3、遇见i改为a，如： ringrang，sitsat，drinkdrank，singsang，swimswam，beginbegan，givegave 4、“骑（马）”“开（车）”“写（字）”把i变o 如：riderode，drivedrove，writewrote 5、“想”“买”“带来”“打仗”ought换上，如：thinkthought，buybought，bringbrought，fightfought 6、“教书”“抓住”aught切莫忘，如： teachtaught，carrycaught 7、ow/aw改为ew是新时尚，如： knowknew，growgrew，throwthrew，drawdrew 8、“放”“让”“读”过去式与原形一个样，如：putput，letlet，readread/red/ 不规则动词过去式变化表 be,am ,is -was are-were begin-began break-kroke bring-brought build-built buy-bought can-could catch-caught come-came do-did draw-drew drink-drank drive-drove eat-ate fall-fell feed-fed feel-felt find-found fly-flew forget-forgot get-got go-went have,has-had hear-heard hold-held keep-kept know-knew learn-learnt,learned leave-left let-let make-made may-might mean-meant meet-met must-must put-put read-read ride-rode ring-rang run-ran say-said see-saw sell-sold shall-should shoe-shoeed sing-sang sit- sat sleep-slept speak-spoke stand-stood swim-swam take-took teach-taught tell-told think-thought throw-threw understand-understood win-won write-wrote “五种类型”巧记不规则英语动词变化一、AAA型（原形、过去式和过去分词同形）：cost cost cost cut cut cut let let let put put put read read read二、ABB型（过去式与过去分词同形）：bring brought brought build built built buy bought bought catch caught caughtdig dug dug feel felt felt find found found get got got have had hadhear heard heard hold held held keep kept kept learn learnt learntleave left left lend lent lent make made made meet met met pay paid paid say said said sell sold sold send sent sentshine shone shone sit sat sat sleep slept slept smell smelt smeltspend spent spent stand stood stood teach taught taught tell told toldthink thought thought understand understood understood三、ABC型（原形、过去式和过去分词各异）：be was/were been begin began begun blow blew blownbreak broke broken do did done draw drew drawndrink drank drunk drive drove driven eat ate eatenfall fell fallen fly flew flown forget forgot forgottengive gave given go went gone grow grew grownknow knew known lie lay lain ride rode ridden ring rang rung see saw seen show showed shownsing sang sung speak spoke spoken swim swam swumtake took taken throw threw thrown wake woke wokenwear wore worn write wrote written四、ABA型（原形与过去分词同形）：become became become come came come五、AAB型（原形与过去式同形）：beat beat beaten过去式动词变化例题训练：一、写出下列动词的第三人称单数形式、过去式形式go_enjoy_buy_eat_get_walk_take_dance_write_run_swim_find_begin_eat_play_study_二、用所给词的适当形式填空。 1.TomandMary_(come)toChinalastmonth. 2.Mike_(notgo)tobeduntil12oclocklastnight.Sohe_(get)uplate. 3.Mary_(read)Englishyesterdaymorning.4.Tom_(begin)tolearnChineselastyear. 5.Mymother_(notdo)houseworkyesterday.6.There_atelephonecallforyoujustnow.(be) 7.-When_you_(come)tochina?-Lastyear.8._(be)itcoldinyourcityyesterday? 9.Howmanypeople_(be)thereinyourclasslastterm? 10.There_(be)afootballmatchonTVyesterdayevening,butI _(have)notimetowatchit.3、 知识拓展 一、找出读音不同的选项。(10分)( ) 1. A. fear B. pear C. hair D. chair( ) 2. A. baby B. tail C. cat D. day( ) 3. A. pine B. bike C. this D. dive( ) 4. A. coat B. load C. know D. how( ) 5. A. now B. south C. house D. know二、写出下列动词的过去式。(10分)get_ run_ watch_ clean_wash_ do_ read_ visit_ walk_ swim_三、选择最佳答案。(20分)( ) 1. What _ you usually do on the weekend ? A. are B. do C. did( ) 2. I played the piano _. A. tomorrow B. last weekend C. every day ( ) 3. Did Lucy _ the noodles yesterday ?A. cooking B. cook C. cooked ( ) 4. I was very grateful _ the dog. A. with B. for C. to ( ) 5. ZhangPeng _ his homework now. A. did B. does C. is doing ( ) 6. What are you doing now ? I am _ pictures. A. draw B. drawing C. drew ( ) 7. John went to the park _ bike yesterday. A. with B. by C. on ( ) 8. I walked _ Mikes home in the morning. A. for B. to C. in ( ) 9. He jumped _ the lake. A. on B. to C. into ( )10. I studied English _ him. A. in B. with C. and四、连词成句。(10分)1. did, you, What, do, yesterday _?2. you, Did, go, the, to, park, weekend, last_?3. visited, I, grandparents, my, yesterday _.4. played, WuYifan, football, friends, his, with _.5. ZhangPeng, to, Mikes, walked, home _.五、用括号内单词的正确形式填空。（10分） 1. My throat is sore. My nose _ (hurt).2. Youre 4 cm _ (tall) than me.3. _ (Li Lei) father is a worker.4. Would you like some(apple) _ ?5. There _ (be) some students here.6. Jenny thought I _ (be) at home.7. Are you ready _ (run)?8. Do you want _ (go) with me?9. How many _ (knife) do you have ?10. Lets _ (play) a game!六、快乐阅读。(30分)（一）Yesterday I had morning tea with my friend Tom in a restaurant. He is fat. He likes to eat very much. We had a happy time. The waiter brought us a lot of things. After a big meal, we had bananas and apples. He drank milk and coffee. I said:“I think we have to go now, Tom. We have been here for 3 hours.”But he said:“No, Mike. We shouldnt leave now. Its lunch time.”根据短文内容判断下列句子，对的打“”，错的打“”。( ) 1. Tom and Mike had tea in the bookshop.( ) 2. They had fruits after meal.( ) 3. The meal they had in the morning was lunch.( ) 4. Tom wanted to have lunch because ha was hungry.( ) 5. Tom and Mike are friends.（二）A rich man dedcide(决定)to give his mother a birthday present.“My pre