need的用法：.ppt

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1、 need的用法的用法： 1.实义动词实义动词 ( 有人称和数的变化有人称和数的变化） sth. . sb. + need to do sth. . sth. to do sth. eg. I need some help.eg. I need to sleep. eg. need time to do sth.He needs time to do homework. sth. + need doing (表被动含义表被动含义) = sth.+ need to be done eg. The house needs cleaning. = The house needs to be clea

2、ned 2.情态动词（没有人称和数的变化）情态动词（没有人称和数的变化） need 用于句首构成一般疑问句或用于句首构成一般疑问句或neednt才为情态动词。才为情态动词。 注意注意：need作为情态动词作为情态动词时，后面必须接动词原形。时，后面必须接动词原形。 常用句式：常用句式： Need sb. do sth? sb. neednt do sth. eg. Need I go? He neednt go home by bus. Exercises: ( ) 1. He needs _ time with his child. A. spends B. spending C. to spend D. spend ( ) 2. Tom_ some money to buy books. A. need to borrow B. needs to borrow C. needs borrow D. needs borrowing ( ) 3. You_ there today. A. neednt going B. neednt to go C dont need to go D. dont need going ( ) 4. The flowers needs_. A. waters B. to water C. watering D. wateredCBCC