中考英语词汇语法专项精练答案|2017中考英语词汇专项练习：一词多义(27)

for
　　(1)介词,表示"当作,作为".
　　I ate eggs and bread for lunch.
　　What do you have for breakfast?
　　(2)表示理由或原因,意为"因为,由于".
　　I didn't go to school today, for it was cold.
　　Thank you for talking to us.
　　(3)表示去向,目的,意为"向,往,取,买"等.
　　What did you come here for?
　　We go out for a walk every evening.
　　(4)表示动作的对象或接受者,意为"给…","对…而言".
　　My mother bought a book for me.
　　Reading in the sun is bad for your eyes.
　　(5)表示时间,距离,意为"达,计".
　　I stayed in Beijing for 2 months.
　　It's bad ____ you to watch TV.
　　A as B for C of D in
　　talk
　　作动词,意为"谈话",构成词组
　　talk with/to sb与某人谈话.
　　talk about sth谈论某事
　　Who is your teacher talking with?
　　We are talking about English food.
　　Lucy is talking ____ her mother.
　　A for B to C about D at
　　need
　　作实义动词,意为"需要,必要"之意.
　　(1)need sth 需要某物.
　　I need a bag.
　　Do you need help?
　　We need a lot of food.
　　(2)need to do sth
　　We need to go to school every day.
　　He needs to stay at home by himself.
　　(3)need doing sth
　　My clothes need washing.
　　His bike needs repairing.
　　(4)need 还可作名词,意为"需要,需求,必要".
　　There's no need to stay here.
　　(5)need还可作情态动词,多用于疑问句和否定句中,此时后面加动词原形,need引导的一般疑问句,其答语肯定用must,否定用needn't.
　　I needn't go to school today.
　　Need you finish your homework before six o'clock?
　　-Need I go now? -Yes, you ______.
　　A need B must C can D may

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