八年级上册新目标英语各单元语法.doc

1. How often 引导的特殊疑问句 How often do you do sth ?意为“你多久做一某事？”该句型常用来询问某动作隔多久进行一次，即询问中间隔的时间长度、动作发生的频率。常见的答语是：always, usually, often, sometimes, hardly ever, three times a day, once a week, every day 等。 如： ------How often do you hike with your friends ? 你隔多久和你的朋友去远足一次？ ------Every Friday . 每周五。 ------How often do you clean your room ? 你多长时间打扫一次你的房间？ ------Often. 经常。 2. What do you/does he/she do on/in……? 句型 What do you/does he/she do on/in……? 你/他/她在……(时间)做什么？这是询问某人在某时通常干什么的句型。答语通常为I/we +动词原形+其他成分或He/She+动词的第三人称单数形式+其他成分。如： -----What do you do on Sundays? 你在星期天干什么？ -----I often clean my house on Sundays? 我星期天经常打扫我的房子。 -----What does your father do after supper? 你爸爸晚饭后干什么？ -----He usually goes for a walk. 他通常取散步。 对划线部分提问 The teacher hardly gives us a test. _____ _____ ______ the teacher give you a test? I never get up before five o’clock? _____ _____ do you get up before five o’clock? Li Tao often has rice for lunch. _____ _____ Li Tao often _____ for lunch? I usually read English in the morning. _____ _____ you usually ______ in the morning? My mother goes to see my grandparents twice a month. _____ _____ _____ your mother _____ to see your grandparents? 答案：1. How often does 2. How often 3. What does have 4. What do do 5. How often does go 情态动词should的用法 情态动词should和can ，may ，must一样，没有人称和数的变化，有词意，但都不能单独作谓语，必须和后面的动词原形一起构成谓语。基本意思是“应当，应该”，常用来表示建议或命令等。如： You should work harder. 你应该更努力地工作。 否定式和疑问式的构成与can ，may ，must一样。如： You shouldn’t play soccer in the street. 你们不应该在街上踢足球。 Who should pay the taxi driver? 谁应该付出租车钱？ 注意： 常用句型You should /shouldn’t do sth 表示“建议某人（不）做某事”。其他表示“建议”的句型还有：Why not do sth? /Why don’t you do sth? /How about doing sth? /What about doing sth? /It’s a good idea to do sth /You’d better do sth等。 单项填空 1. We _________ keep the new traffic law(交通法). A. may B. should C. can D. need I’d like to buy a new shirt , but I don’t know __________ . A. where could buy it B. I should take whi