Unit 6 How long have you been collecting shells
一 语法学习 be 过去式 was/were 过去分词 been 现在完成进行时:动作发生在过去,持续到现在,还在进行,未停止
谓语构成: have/has been doing ,此结构中 been 无意义
I have been skating for five hours
I have been skating since five o’clock
for+一段时间,since +一个时间点 练习:用现在完成进行时填空 1
He _____ ______ ______(skate) for four hours
She _____ ____ _____ (study) English for ten years
Li Ly ____ ____ ______ (collect) kites since he was ten years old
You ____ ____ _____ (listen) to music videos
How long ___ you ___ ___ (watch) English movies
How long _____ Li Ly ____ ____ (write) in English
______ six years
练习: 用 since 和 for 填空 1 I stayed in Beijing ______ six days last year
2 I have been learning English _____ I was 11 years old
He has been running ____ six o’clock this morning