英语六年级下册Unit 4 Then and now Part C优秀ppt课件

这是一份英语六年级下册Unit 4 Then and now Part C优秀ppt课件

Unit4 Then and now人教版英语六年级下册Part C Story time目录新课导入01Let’s singBomb timedining hallgymgrassmonths agolast yearlast yearlast monthgo cyclingice-skateplay badmintonLet’s review动词不规则变化表动词不规则变化表Let’s review知识讲解02Story timeStory timeNow there are many things to help you cook.Story timeIn 2050,there will be house robots.They will cook,clean and wash the dishes.Story timeOh,cavemen didn’t cook their meat?It’s OK.They didn’t do the dishes either!Story timeThere were many trees,and there were many clean rivers.Now,there are more and more buildings.Story timeStory timeLook!How beautiful the world was!Oh!What will the birds do?Don’t worry.People will help them.Story timeBefore humans lived on the earth,whales already lived in the sea.Story timeNow,there are not many whales.Story timeIf we change now,whales and humans will have a bright future.Story timeHeal the world!Make it a better place!一般过去时态的否定句形式1．找动词was，were，could直接加not.was not = wasn’t were not = weren’t could not = couldn’tLanguage point一般过去时态的否定句形式2．没有was，were，找出动词过去式，动词前加didn’t，didn’t加原形，其他照抄。I rode a bike yesterday.（改为否定句）I didn’t ride a bike yesterday.Language pointStory timePair work两人一组合作朗读。2.分角色表演对话。3.情景展示表演。随堂测试031．I went shopping yesterday. I didn’t go shopping yesterday.2．I took pictures last Sunday. I didn’t take pictures last Sunday.将下列句子改为否定句。3．He played football last Saturday. He didn’t play football last Saturday.4．She bought gifts last night. She didn’t buy gifts last night.5．We drank tea the day before yesterday. We didn’t drink tea the day before yesterday.课堂小结04一般现在时VS一般过去时时态一般现在时：一般过去时：经常或习惯性的动作或存在的状态。过去某个时间或时间段发生的动作或存在的状态。(The Simple Present Tense)(The Simple Past Tense)一般现在时：经常或习惯性的动作或存在的状态。(The Simple Present Tense)一般现在时：过去某个时间或时间段发生的动作或存在的状态。(The Simple Past Tense)一般过去时：一般现在时标志词 always, usually, often,ometimes ,seldom, nevernever, every day, every… ,three times a day一般过去时标志词 last night, last…, two days ago, …ago, in 1999, in +过去的年份, just now =a moment ago, yesterday, yesterday morning 动词第三人称单数的构成：过去式的构成：①直接加-s。②以s, x, ch, sh, o结尾加-es。③以“辅音+y “结尾变y 为i再加-es。①直接加-ed。②以e结尾只加d。③重读辅元辅，双写尾字母再加-ed。④以“辅音+y”结尾变y 为i 再加-ed。第三人称单数过去式study-finish-have-go-do-play-watch-give-need-stop-hope-play-try-plan-visit-like- studies finishes has goes does plays watches gives needed stopped hoped played tried planned visited likedHomework勤于思考1.听录音15分钟2.复述故事Thank you！