陕西省延安市延川县第二中学八年级英语下册 Unit 6 How long have you been collecting shells Section A学案（无答案） 人教新目标版.doc

unit 6 how long have you been collecting shells section a 学习目标1、初步学习掌握现在完成进行时。2、会用新时态来描述恰当的情景。疑难点拨：1. 现在完成进行时： 以上两句话中划线部分的结构是 _+_+_, 属于_时态，其中been是 _的过去分词。此时态表示动作从_开始，持续到_,可能继续下去。 (小试身手) 按要求改写下列句子：1) she has been working for 20 hours.(改为一般疑问句，并作否定回答)_ she _working for 20 hours? no,_ _.2) ive been skating .for five hours（对划线部分提问） _ _ _ you been skating?3) tom ran for 1 hour.（用现在完成进行时态改写） tom _ _ _ for 1 hour. 4) 她已经等你两个小时了 she_ _ _ for you_ _ _ 5) he_for two hours, and he is still running now. a. runs b. has been running c. is running d. will run 2. since 与 for :1) ive been skating since i was seven years old. ive been skating since nine oclock.2) ive been skating for five hours. 从以上三句话中可以得知， since后面跟_,句子时态用_.since后面也可跟_,for后面跟_ 选择：.ive been skating (for/since) three years. .jack has been studying chinese (for/since) the year of 2000. （小试身手） 1） she has been doing her homework _ two hours. she has been doing her homework _ two hours ago. 2） shes been collecting stamps _she was ten. 3） they have learned english _ they came to school. 4） they have been in the room _8 o clock. 5） we have studied english _several years. 6） i have been living in xian _i was born. 7） she has worked here _ 2006. 8） mary has been running _ she came here.结论：for 引导一个时间段， 如： for an hour , for two days since 引导一个过去的时间点 如：since an hour ago, since two days ago, since 1980，since last sunday 引导一个一般过去时态的句子 如： since i was born.自学导航： 一. words:1.自学p 44-p46的单词:根据音标试读-跟录音大声读-英汉对照识记-组长听写- 在文中划出新单词，体会用法。2.翻译下列单词及词组 collect shells /stamps_ how long _ 马拉松赛跑_ the skating marathon _ 一双溜冰鞋_ 自从9点起_ 筹钱 _ 几个的 _ 溜冰鞋 _ be the first one to do sth._ three and a half years _2 conversations: 从小学三年级起，大家已经接触英语了，现在请结合1c,2c,4的对话，以学英语为话题编对话并展示，比比哪组的对话更完整，更有创意！_3 writing: 回忆上部分所展示的对话，请给其加上必要的细节，仿照3a写出一篇小短文。_课堂检测:1. 根据句意及提示写词： 1. my hoby is to _（收集）old coins. 2. i want to buy a new _（双）of sports shoes for the coming sports meeting. 3. we havent seen each other _（自从）2008. 4. her uncle bought her a new pair of _（滑冰鞋）on her 12th birthday. 5. the children like collecting _（贝壳）on the beach. 二.单选( ) 1. my pair of shoes _ much too expensive. a. are b. is c. be d. were ( )2.can i help you? id like _ for my twin sons. a. two pair of shoes b. two pairs of shoe c. two pair of shoe d. two pairs of shoes ( ) 3. we have been walking _ 8 oclock. a. for b. at c. since d with ( ）4.amy has been skating _ two hours. a. or about b. for c. since d. for about( ) 5. how long have you been living here? ive been living here _ four years ago. a. for b. before c. since d. during( ) 6. uncle wang _ since he came to the company. a. has been working b. have been working c. worked d. works( ) 7. they have been swimming since they _5. a. is b. was c. has d. were ( ) 8. mr li _swimming for 3 hours, and his son _ an hour ago. a. has been, started b. has been, has started c. started, has started d. has started, started( ) 9.-_ has this food store been here? - since 2001. a. how long b. how often c. how old d. how soon( ) 10. she has been swimming _. a. for three and a half hours b. since three hours and a half c. three and a half hour ago d. three hours and a half before 三. 用所给词的正确形式填空：1. shes been _(swim) for two hours.2. the students are collecting waste paper _(raise) some money for charity.3. linda was the _(one) student to get to school this morning.4. ive been studying japanese since i _(work) on the farm.5. she wants to buy a new pair of_(skate). she wants to be a good _(skate).6. he has been playing basketball for _(several) hours.7. i have lived in this apartment since i _(come) to china.8. how long have you been _(live) here?9. i_(sleep) for eight hours last night.10. my elder brother has been teaching for two and a half _(year). 四完成句子： 1. i have been playing tennis_ _ _ _ _ _