山东省宁阳县第二十五中学八年级英语下册《Unit6 How long have you beencollecting shells Section B（1a2C）》学案（无答案） 人教新目标版.doc

山东省宁阳县第二十五中学八年级英语下册unit6 how long have you beencollecting shells section b（1a-2c）学案（无答案） 人教新目标版课题名称unit 6 section b (1a2c)课时共5课时授课班级第3课时总课时30教学重点1.记住p47等单词词组。2.翻译p47页出现的句子。教学难点学会使用have/has been doing课前准备准备单词的听写；准备背诵学 案一、快乐预习：（一）学习方式：按要求自主完成下列内容（二）预习内容：1.朗读并识记47页的生词及短语 2.翻译47页的句子3. 找出含have/has been doing（三）预习检测：1. the smiths have been watching english movies _about two hours .a. since b. for c. in d. during 2. they are singing to _ money for poor children in poor areas.a. have b. raise c. take d. collect3. _ you read the text, _ you will understand it.a. the more, better b. more, the better c. the more, the better d. more, better4. the ship was full of people. there was no_ for elen.a. room b. rooms c. a room d. any room5.zhang li has been working for_ eight hours.a. the whole b. the all c. whole d .all【预习质疑】写出预习中发现的问题_二 ：学习目标：学会使用the past perfect tense二合作探究 （一）阳光展示：组内交流课前自主学习内容（二）导学点拨 现在完成进行时都可以表示一段时间内延续的动首先，从定义上来看，现在完成时(have done)表示的是已经完成的动作或者状态，常常与already“已经”或ever “曾经”连用，如： we have already learnt unit 2. (我们已经学习了第二单元。)she is the most beautiful girl i have ever seen. (她是我见过的最漂亮的女孩。)而现在完成进行时则表示的是从过去某一时刻开始一直延续到现在，并且还要进行下去的动作，具有未完成的特点，一般不与already或ever等连用，如：we have been learning unit 2. 我们一直在学习第二单元。（没学完）注意以下两组句子含义上的区别：i have read the novel. 我看过那本书了. (已看完)i have been reading the novel. (一直在看，还没有看完)who has eaten my dinner? （表示“全吃光了”）who has been eating my dinner? （表示“还有一些剩下”）第二，相对于现在完成时表示次性，现在完成进行时可以表示动作的重复，请看以下句子：i have met him at the library. (我在图书馆见过他。)i have been meeting him at the library. (我经常在图书馆看见她。)第三，现在完成时和现在完成进行时都可以表示刚刚结束的动作，但在含义上有区别。现在完成时强调的是动作的结果，而现在完成进行时强调的则是动作的过程。如：you look so tired, what have you been doing?你看起来很累，做什么了？（强调动作）we are very tired. weve been cleaning the house.我们很累，我们刚才在打扫房子。（强调该动作所导致）weve cleaned the house. you may come in now.我们打扫过房子了，你可以进来了。（强调结果“房子干净”）（三）对应训练 用适当的时态填空： 1. shesl_ you _ (buy) it?” “ yesterday.” _ (live) here ever since she was ten. 2. both of them _ (be) in hong kong for ten days.3. both of them _ (come) to hong kong ten days ago. 4. half an hour _ (pass) since the train _ (leave). 5. mary_(lose) her pen. _ you _ (see) it here and there? 6. _ you _ (find) your watch yet? 7. -are you thirsty? -no i _ just _ (have) some orange. 8. we _already _ (return) the book. 9. _ they _ (build) a new school in the village? 10. i _(not finish) my homework . can you help me? 三：拓展提高：1.choose three important things to you 2.完成2a,2b听力 3. pairwork make conversations课堂小结：写出三句有现在完成进行时的句子四 感恩达标一、 单项选择 (15分)1 .li chen _football an hour ago.a. has been playing b. has played c. plays d. played2 .how many times_ to shanghai since the summer of 2002?twice. a. did you go b. have you gone c. have you been d. will you go3 .- _ do you take a shower ? - once a week .a. how long b. how much c. how often d. what time 4. cartoons are very _, so i am very _ in them.a. interested, interesting b. interesting, interest