good at后面不是加動(dòng)詞原形，應(yīng)該跟動(dòng)詞ing形式。因?yàn)閍t是介詞，介詞后面要跟名詞或動(dòng)名詞即動(dòng)詞的ing形式例如be good at doing sth是擅長做某事。動(dòng)詞ing形式也是一種非謂語動(dòng)詞。

good at后面應(yīng)該加什么

good at后面加sth.或者doing sth。be good at的具體用法如下：

1、be good at sth. 擅長某事

I am good at Chinese.

我擅長中文。

He is good at maths.

他擅長數(shù)學(xué)。

2、be good at doing sth. 擅長做某事

I am good at playing volleyball.

我擅長打排球。

They are good at playing the guitar.

他們擅長彈吉他。

3、be good at = do well in 擅長，......做得好

I am good at English.

=I do well in English.

我擅長英語。

good at的雙語例句

1、A good listener must be good at asking questions.一個(gè)好的聆聽者應(yīng)該善于問問題.

2、Be good at harmonize social relationship between all departments, strong ability in communication.擅長協(xié)調(diào)部分之間人際關(guān)系,具有很強(qiáng)的溝通能力.

3、I expect to study in the US one day. Before that day coming, I must be good at English.我期望有天能到美國念書在那天到來之前我必須先將我的英文學(xué)好!

4、You could study astronomy, or space engineering, and be good at it.你可以學(xué)習(xí)天文學(xué),或是空間工程學(xué),可以學(xué)的很棒.

5、Wow, what a perfect girl! She must be good at flattering your GM.哇哦,好一個(gè)完美的女人啊.她一定很會(huì)拍你老板的馬屁了.

6、He is good at playing piano. 他很擅長彈鋼琴。