ask /a:sk/ vt.vi. 问，要请（同义词 beg, request, demand)
He asked a difficult question and even the teacher couldn't answer it.
他问了个难题，甚至老师都不会。
［搭配或短语）
①ask for sth. 要···:
He often asks his parents for pocket money.
他经常找父母要零花钱。
② ask sb. to do sth. 请某人做某事：
Our teacher asks us to read English every day.
老师要求我们每天朗读英语。
③ ask sb. sth. =ask sth. of sb. 问某人某事：
He asked me a question. =He asked a question of me.
他问我一个问题
【辨析】
beg 表示请求时，含有恳求或谦恭的意思，常用于客套语中：
I beg him to stay.
我恳请他留下。
request 通常指比较正式地或有礼貌地邀请：
I request you all to be seated.
我请你们大家都坐下。
demand 有命令的意思，是来自权威方面且不打折扣的要求：
I demand to know the truth.
我要知道事实真相。
【例题】
She can't finish the work by herself, so she favor of you.
A. ask for B. asks C. asks for D. ask (B)
Since Mother is ill, she to you.
A.makes me write B.has me to write C. asks me to write D. asks me write（C)
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