1、 She has moved to London since 2001.2. worth prep. 值钱 prep. 相当于价值,值钱How much is the necklace worth?这条项链值多少钱? prep. 具有价值;值得be worth doing 值得The book is worth reading.这本书值得阅读。扩展知识:prove ones worth 证明某人的价值3. cost v. 花费(cost-cost)The coat costs $30.How much does this house cost?4. (1)pound n. 英镑The hous
2、e is 68,500 pounds.(2)penny n. 便士(单数) 例如:every penny of it 一分钱一分货This coat is worth every penny of it.这件衣服确实值这么多钱。 扩展知识:1英镑=100便士Difficulites辨析1. 辨析:take:花费(时间) It takes me two hours to do my homework.spend:表示“花费(时间)”时,固定搭配为:spend+一段时间+(in) doing sth. I spend two hours (in) doing my homework. 表示“花费(
3、金钱)”时,固定搭配为:spend+钱+on sth. I spent 10 dollars on that book. 此时常与pay for区别 I paid 10 dollars for that book.cost:主语为某物,通常强调该物品的价格。 The book cost me 10 dollars.那本书花费我十美元。Grammar语法1. 现在完成时(四)since和for 的用法及区别如下:-since+时间点(表示起点的时间)-since+从句(时间状语从句,从句多为过去时)-since+一段时间+ago-for +一段时间 I have been here since
4、3 oclock. She has learned English since she was five years old. I have been ill since three days ago. She has been away for three days.2. how long就for,since引导的时间状语提问I have been here since 3 oclock. (就划线部分提问) How long have you been here? She has been away for three days. (就划线部分提问) How long has she been away? A proverb No smoke without fire. _