Unit 10 I’ve had this bike for three years? Section A 1a - 2d ( 第1)预习案一、导学领航New word s：yard sale, toy bear, bread maker, scarf, soft toys, board games二、自主学习Pair workWork on 1a. Show the things at the yard sale. Let the students talk about them in pairs by using the important sentences. --How long have you had that bike over there? --I’ve had it for three years! I learned how to ride a bike on it.巩固辨析：for 与sincefor其后只能接表示“ ”的名词性短语，可用多种时态，表示动作或状态持续时间长短。e.g. I have lived in this city for five years. 我在这座城市居住了5年了。 He usually sleeps for twelve hours every day. 他通每天睡12个小时。since 其后接表示“ ”的短语或从句（过去时），也可以接“ ”，用完成时态；还用句型：“It is +时间+since+一般过去时的句子”。表示过去某个时间发生并持续 到说话时的动作或状态。e.g. It is two years since I came to China. 自从我到中国以来已经两年了。 She has worked here for five years. =She has worked here since five years ago. 她在这儿工作5年了。（一）选择填空1. -- ____ have you been married？ -- For twenty years. A. How far B. How often C. How long D. How soon2. If you sit in a chair ____ a long time, your back may begin to hurt. A. at B. in C. on D. for3. -- I often have hamburgers |
