How long have you been collecting shells教案

for five years = since five years ago
(2) how long還可以對物體長度進行提問。例如：how long is the river?
2. since i was 7 years old . 自從我七歲以來。
(1) since 作conj.時，意為“自從；自……以來”，用來引導時間狀語從句。since從句常用過去時，主句常用完成時。
 my father has taught here since he left school.
(3) 作prep.時，意為“自從；自……以來”，后接表示過去時間點的名詞。
she has been ill since 1999.
step2  warming-up   step 3 lead-in    step4  pairwork
step 5 拓展延伸：用所給詞的適當形式填空。
     run, collect, for, since, pair
1. my hobby is ________ shells.
2. mom, my shoes are old. could you buy me a new _________ ?
3. she has been playing the piano ______ she was 4 years old.
4. i’ve been studying english _____ over 5 years.
5. was this your first _____ marathon ?
step 6 系統總結
三、限時作業 滿分 10 分    得分 ________
1. there are many beautiful s________ on the beach.
2. i have lived in los angeles s______ i was born.
3. she’s going to buy a p_______ of shoes.
4. the boy likes c_______ stamps.
5. --- _____ shall we start for shanghai ?  --- at eight o’clock tomorrow morning .
a. how long  b. when  c. how soon
6. ---- ______ have you been standing here ?  --- for half an hour.
a. when   b. where   c.  how long
7. --- ______ you ____ to the party yesterday?   ----- yes, i did.
  a. did ; go  b. have; been  c. do; go
8. there ____ a pair of shoes under the bed.   a. is   b.  are  c.  were
9. _______ (滑冰) is good for health.
10. he played computer games for 3 hours.(對劃線部分提問)
   ______ ______ ________ he play computer games?
學后反思：