修改unit6SectinA1a-2c語法李俠勤.ppt

Unit 6 How long have you been collecting shells? sectionA 1a-2c,Li Xiaqin,學(xué)習(xí)目標：,1.利用師生對話，復(fù)習(xí)一般過去時。 2.對比for與since ,思考二者區(qū)別 3.專題訓(xùn)練：學(xué)習(xí)現(xiàn)在完成進行時。,觀察例句，結(jié)合資料書，試概況for與since 的區(qū)別： Ive been studying English for six years. Ive been studying English since six years ago. Ive been studying English since I was ten.,How long has she been playing computer?,(four hours),She has been playing computer,= since four hours ago.,Using since /for：（利用since/for 看圖造句）,for four hours.,How long has she been dancing?,She has been dancing,for 3 hours.,since 3 hours ago.,Pairwork,3 hours,45 minutes,How long has she been learning?,She has been learning,for 45 minutes.,since 45 minutes ago.,1._? He took a shower for two hours. 2._? I have been riding a bike since I was ten years old. 3._? She started walking five hours ago. 4._? Theyve been watching Tv since 7:00. 5._? He likes skating.,對劃線部分提問？,How long did he take a shower,How long have you been riding a bike,When did she start walking,How long have they been watching Tv,Whats his hobby,用for和since填空,They have been learning Chinese _ they came to China. 2. I havent seen her _ a long time. 3. He has been living here _ 2001. 4. She has been doing her homework _ two hours. 5. Its 5 years _ we left school. 6. How long has Mary been a teacher? _ two years ago. 7.I have been practicing the piano _ 10:30.,Have a try,since,for,since,for,since,since,since,I have been teaching English for 8 years.,He has been skating since 2 hours ago.,觀察例句，思考上面是什么時態(tài) ，試概況時態(tài)的定義、時態(tài)的結(jié)構(gòu) 、時態(tài)的標志。,Ive been studying English for six years. Ive been studying English since six years ago. Ive been studying English since I was ten.,定義：表示過去某一時間開始一直延續(xù)到現(xiàn)在的動作。,時間標志: 1. for + 一段時間 2. since + 過去的時間點 3. since + 一般過去時的句子,構(gòu)成： have/has been + V-ing +,現(xiàn)在完成進行時,否定句：在have / has后+ not I havent been writing the letter for two hours. He hasnt been sleeping for 4 hours. 一般疑問句：Have / Has 提前，放句首。 1. Have you been writing the letter foe two hours? 2. Has he been sleeping for 4 hours?,表示的動作雖然都發(fā) 生在過去,比較： 1.I watched TV for three hours.,（I stopped watching TV.）,（I am still watching Tv now.）,現(xiàn)在完成進行時與一般過去時的區(qū)別,3、He has been swimming since four oclock. 4、He swam at four oclock.,2.I have been watching TV for three hours.,現(xiàn)在完成進行時與一般過去時的區(qū)別 相同點： 都表示的動作雖然都發(fā)生在過去。 不同點： 現(xiàn)在完成進行時：強調(diào)的是動作的持續(xù)或進行。 一般過去時：則只表示過去的動作或狀態(tài), 和現(xiàn)在沒有什么聯(lián)系。,練習(xí)坊,一、選擇填空,( )1. Ive been skating _ three hours today. A. about B. for C. since,( )2. Weve been studying English _two years ago. A. for B. from C. since,B,C,( )3. She started skating _ 9 oclock. A. for B. at C. since ( )4. Sam _ collecting shells for five years. A. is B. started C. has been ( )5. How long have you _ today? A. swimming B. been swimming C. started swimming,B,C,B,二、用 for或since填空 1. I have been practicing my oral English _ 10:30. 2. Mary has been running _ 15 minutes. 3. Sarah has been sleeping _ 9:00. 4. Dale has been talking on the phone _ 5 minutes.,since,for,since,for,5. Louie has been studying Chinese _ he was 6 years old 6. I have been watching you _ 10 minutes. 7. Lana has been running _ 15 minutes 8. Tom has been sleeping _ 9:00.,since,for,for,since,9. He has been living here _ 2001. 10. She has been doing her homework _ two hours. 11. I have been watching TV _10 minutes. 12. How long has Mary been a teacher? _ two years ago.,since,Since,for,for,III. 將下列漢語翻譯成英語。 1. 雨已經(jīng)下了兩個星期了。 _ 2. 你奶奶從年輕時就一直運動嗎？ 是的，她一直運動。_ _ _,It has been raining for two weeks.,Has your grandmother been doing sports since she was young? Yes, she has.,Translate and write them down.,1. 他踢足球踢了多長時間了？ 他踢了五個小時了。 2. 你滑