这几个介词要怎麼用?I always remember to teach my student( )showing them the right ways to do things.1,for 2,at 3,by选哪一个呢?这三个选项的介词要怎麼用呢?

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这几个介词要怎麼用?I always remember to teach my student( )showing them the right ways to do things.1,for 2,at 3,by选哪一个呢?这三个选项的介词要怎麼用呢?
这几个介词要怎麼用?
I always remember to teach my student( )showing them the right ways to do things.
1,for 2,at 3,by
选哪一个呢?
这三个选项的介词要怎麼用呢?

这几个介词要怎麼用?I always remember to teach my student( )showing them the right ways to do things.1,for 2,at 3,by选哪一个呢?这三个选项的介词要怎麼用呢?
区分介词看介词接的句子成分是什么.
for接的句子成分侧重点是表原因的成分；
at接的是做某一件事；有方向性的；比如shoot at朝...射击；
by一般是接表通过；途径；方法；不是有词组by means of就是“通过”的意思嘛!
所以本题的介词应该选择by.
teach my student by showing them the right ways to do things
通过教他们解决问题的正确方法来教会学生.

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