You can also _______ old things ________ to people in need.

2.你能付75美分买它。You can ______ it _____ 75 cents.

3.我买着本杂志几个月了。I've _______　ｔｈｉｓ　ｍａｇａｚｉｎｅ　＿＿＿＿＿ _________ _________ ________　ｍｏｎｔｈｓ．

4. 自从我是一个孩子的时候我就拥有它们。I＇ｖｅ　ｈａｄ　ｔｈｅｍ　＿＿＿＿＿　I　＿＿＿＿＿ a child.

（三） 预习质疑________________________________________________________________

二、 课中实施

一、精讲点拨

1. --How long have you had that bike there?

　--I have had it for three years

　辨析：how long, how soon, how often, how far

How long 多久，多长（时间）。对时间段提问，如：for+时间段；since+过去的时间点。

　e.g. --How long have you worked in Beijing?

--For five years.

How soon 多久以后。对"in+时间段提问，常用于一般将来时"，其答语常用"in+时间段"。

　e.g. -How soon will Mr. Li be back?

--In a week.

How often 多久一次，对频率提问，其答语为：once（twice/...）+时间段，always，usually等。

　e.g. --How often do you exercise?

-- Once a day.

　How far 多远，对距离提问，其答语是表距离的内容。

　e.g. --How far is it from here to your school?

-- Three kilometers.

辨析：for 与since