I Taught the Teacher 我教老师

Mother asked her little boy, Darling, what did the teacher teach you today?
母亲问她年幼的儿子：宝贝，今天老师教了你些什么？
Nothing, Mum, answered the son proundly, instead, she asked me how much one plus two was, and I told her three.
儿子骄傲地说：什么都没教，妈妈。她反倒问我一加二等于几，我告诉她等于三。

1.ask
ask是个很简单的单词，关于它的用法今天简单来讲讲：
1).可以接双宾语
Ask him his name. 问问他的名字。
有时双宾语可以交换位置，借助介词of，

比如 eg：He came to ask a favour of me. 他来请我帮忙。

2).看看ask与介词的常见搭配：
(1) 与介词 for 连用，有“要求得到”的意思。

如：She is always asking for money. 她老是要钱。
(2) 与 about 连用，表示询问或打听关于某事的情况。

如：Ask (him) about the ring. 问问（他）你丢的戒指。
(3) 与 after 连用，表问候或问好。

如：He always asks after you in his letters. 他每次来信都向你问候。

2.instead
instead意为“代替”“替代”，作副词用，通常位于句尾。如位于句首时常用逗号与后面阁开。instead 在顺接句子中作“代替”讲，而在转折（或逆转）句子中作“然而”讲。

例如：
1.Lily isn't here. Ask Lucy instead.
莉莉不在这儿，去问露西吧.
2.she didn't answer me, instead, she asked me another question.
她没有回答我，反而问了我另外一个问题。

instead of是介宾短语，其意与instead相同，不同之处在于它后面常接宾语，起宾语多由名词、代词、介词、短语、动词ing形式充当。
eg：I'll go instead of her. 我会代替她去。