八年级英语下册 Unit 6 How long have you been collecting shells Section A学案.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_ _ _ _ _ _