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1、8B Unit 1 Past and PresentPeriod 1 Comic strip &Welcome to the unit【教学目标】1.识记北京不同时期的交通工具。2.通过观察时间表并排列信息，介绍现在完成时这一语法观念。3.掌握下列词汇及句子：1）past, present, since 2) notany more, play with3) Eddie,have you seen my food? Ive just eaten it.【课前导学】1.聪明的你在预习了本课的新单词后，先来考考自己的记忆力吧。1）过去，往事 2）现在，目前 3）刚才 4）时代，时期 5）运输，交通
2、工具 6）地铁 2.按要求写出下列短语1）过去常常做某事_2）步行去上学_3）坐飞机去其他城市_4）坐出租车环游这个城市_【课堂研讨】Step1新课导学(一)Welcome to the unit1.复习以前学过的交通工具：_2.回答问题：How do you go to school every day? How do your parents go to work every day? If I want to go to the USA, how can I get there? 3.完成课本第7页A部分的练习。朗读这些单词。 【单词拓展】Double-decker: It is a b
3、us with two floors. Light rail: It is a rail transportation system in cities, usually driven by electric power and runs 5. 根据A部分下方相关交通工具在北京的开始使用时间，学习下列对话，注意时间概念： A: How did your Dad go to school when he was a student? B: He used to go to school on foot./He often went to school on foot in the past. 学
4、生根据示范编对话。6.听课本第7页B部分的对话，回答问题。 1）How did Millies dad go to school when he was a child?2) Why didnt Millies dad take a bus?3) How doea millie go to school?4) Why does she take a bus?(二) Comic strip 1. 听录音，回答问题：Eddie and Hobo are talking about changes too. What changes are they talking about?2.跟读对话，再回答
5、问题： 1）What was in the bowl an hour ago? 2) Why did Eddie eat Hobos food? 3) Why does Hobo think Eddie has changed?3.分角色朗读对话并表演，能够根据想象添加内容你就更棒了。4.小组讨论：含有现在完成时的句子有哪些？你懂得他们的意思吗？ Step 2拓展延伸1. used to do sth.意思是“过去常常做某事”，表示过去经常做或一直做而现在不做，它只用于过去时态。(一)肯定句式：主语+used to+动词原形例如：I used to go to the cinema,but I
6、 never have time now.我过去经常去看电影，但现在没有时间了。(二)否定句式：A)主语+did not use to+动词原形B)主语+used not to+动词原形第一种否定句型，就是把used当做实义动词来看，所以变否定句要用助动词did;第二种否定句是把used当做情态动词，变否定句直接在used后面加not即可，used not可以缩写成usednt或usent。美式英语通常用A种形式，英式英语常用B种形式。例如：You didnt use to drink.你过去不喝酒。The shop usednt to open on Sundays. 过去这家商店星期天不营
7、业。(三)一般疑问句式：A)Did+主语+use to+动词原形?B)Used+主语+to+动词原形?美式英语通常用A种形式，英式英语用B种形式。例如：Did you use to go swimming in the river when you were young?你小时候经常在河里游泳吗?Used he go to school by bike?他过去骑车上学吗?(四)used to用于省略句时，肯定式保留to，否定式不保留to。例如：Used you play basketball?你过去常打篮球吗?Yes, I used to.(No,I usednt.)是的，经常打。(不，不常打
8、。)I dont write to him now, but I used to.我现在不给他写信了，但过去经常写。比较下列短语： be used to doing sth/sth 习惯于做某事/某事 be used to do sth/for doing sth 被用来做某事用used to do 、be used to doing 、be used to do sth 填空1. Life here is much easier than it _ be.2. He _ hard work.3. Ive lived in Paris for six years now, so Im quit
9、e _ the traffic.4. Its difficult to understand Scottish people if you_their accent.5. It was a bit of a shock: I_ paying so much for a sandwich and a glass of beer.6. I dont play tennis much these days, but I _.7. 7. The wood _ make desks and chairs.2.初识现在完成时：现在完成时:（一）含义：1）过去发生，现已完成，并对现在产生影响或结果的动作。2
10、）始于过去，延续至今的动作。（二）构成： have/has +动词的过去分词 （三）现在完成时的用法：1）完成时表示过去发生或完成的某一动作对现在造成的影响或结果。例如：Have you read that story ？（“读”的动作发生在过去，对现在造成的影响是：是否知道故事的内容） 2）表示动作或状态过去已经开始一直延续到现在，和由for或 since 引导的时间状语连用。此种用法要用延续性动词（但否定句中，可用短暂性动词）。【课堂检测】一根据句意及首字母提示完成单词1. There is no time at p_.2. There are a lot of light r_in Ho
11、ng Kong.3. He often goes to work by u_.4. I was very h_,so I have eaten your food.5. Great c_ have taken place in our city.6. This summer holiday, he went to Beijing by t_. 7. Im afraid I cant help you at p_. 8.I am not hungry. I have e_ enough.二、根据中文完成句子。 1、我的铅笔盒现在不在课桌上。 My pencil-box _. 2、你看到我的铅笔盒
12、了吗？ _ my pencil box? 3、我们刚刚吃过午饭。我们十一点半吃的。 We _ lunch. We _ at 11:30. 4、Tom自从出生就一直住在南京， Tom _since he was born. 5、我饿了，你能给我弄点好吃的吗？Im very _. Can you give me _ _ _ _?【课后拓展】一 用动词的适当形式填空。1. The students of Class Four(have) an English lesson now.2. You may let her_(go) back home now.3. My sister _(be) born in 1993. Since then, she _(live) in this city.4. We enjoy _(read) after class.5. - What _John _(do) last night?-He_(watch) TV.6. Hangzhou Bay(湾) Bridge _(be) in service for more than a month.7. -Where is my food?-I_just _(eat) it. 8Look! The room is clean. Who _
