八上A试题.doc

Unit2 How often do you exercise 【seful Phrases】 be bad for Doing morning exercise your heath .(对…有益) Eating too much sugar your teeth.(对…有害) 2、be good at (doing) sth = Li Ping is good at basketball. =Li Ping is good at (play)basketball. = Li Ping basketball.（擅长于） 二、want的用法：1、want sth.2、want to do sth.3、want sb. to do sth.want sth.中的sth.一般是名词，如apple, pencil, book, money等我想要点水。I want some water.我想吃一个苹果。I want an apple. 我想要两本书。I want two books.want to do sth.其中的do是动词原形，表达主语想要做的动作。 eel like doing sth 我想要喝点水。I want to some water.( drink) I feel like some water.( drink) 我想要吃一个苹果。I want to an apple.(eat) I feel like an apple.(eat) want sb. to do. sth.其中的sb.是want的宾语，是主语想要这个宾语做某事。我想让我妈妈喝点水。I want my mother to drink some water.我想让吃一个苹果。I want to eat an apple.（she）他想让我买两本书。 want to buy two books.（I） help用法举例 elp既可以作名词，也可以作动词。 help作名词，意为“帮助”。 eg:He needs some help. help作动词， “帮助” eg:Can you help me? help的结构： elp sb (to) do sth =help sb with sth eg:They want to help the boy ( carry) the heavy box. =They want to help the boy with the heavy box. 四、try的用法 1.try to do sth 2.try doing sth She tried her hair with a new shampoo.（wash）她试着用一种新的香波洗头发。He didn’t try it.（do）他不肯努力去干please try this work in thirty miniutes.（finish）请尽量在30分钟完成这项工作。why didnt you try a bike to go to school?（ride）为什么不试着骑车去学校呢？.how often… 用于询问动作或行为发生的频率，回答此类问题常可用twice a day（一天两次），once a week(一周一次) eg:How often do you come here? ---I usually come once a week.But in summer holiday I come every day. 频率副词lways usually often sometimes hardly never hardly ever 一、翻译 （1）垃圾食品______ （2）想要做某事________（3）想让某人做