Be excited about/by/at (doing)sth 对...感到兴奋,激动

三者可互换使用

1.Be excited at..

 Foreigners got excited at Beijing Olympics' opening ceremony. 老外在北京奥运会开幕式中老激动了.
He was excited at the news. 他听到这个消息很激动。

2.Be excited about
Why should we be excited about the 2008 Olympics/the 2010 World Cup?
I was excited about a job interview. 我对那个面试老激动了,当时.
There’s nothing to get excited about.没有什么可以激动的。

Everybody feels excited about it. 无不为之高兴。

She is excited about finishing her homework. 她为完成作业而感到兴奋。

What are you so excited about? 你为什么如此兴奋?

She is excited about going to London. 她对去伦敦感到兴奋.

She is very excited about winning the first prize.赢得首奖,她激动不已。

It’s nothing to get excited about.  这没什么可激动的。
He was quite excited about the news of victory.  胜利的消息使他异常兴奋。

The kids seem pretty excited about the holiday.  孩子们为假期显得很兴奋。

3.Be excited by

4.People were excited by discovery of fifth planet. 人们被第5大行星的发现激动着.
Everybody was excited by the news of the victory. 人人为此胜利的消息而兴奋。

John is excited by the prospect of own his own boat. 约翰因将拥有自己的船而感到兴奋。

We were all excited by the news. 我们都为这消息感到兴奋。

I am really very excited by the story. 这故事的确令我非常激动。

另外

Be excited for 为...而激动,兴奋
I was excited for him. 我为他激动.
We are excited for 3D Developments. 为3D的发展而激动.

也可以跟不定式

I was quite excited to hear that.  听到那事我非常激动。

I am so excited to attend a typical Chinese concert. 能聆听一场典型的中国音乐会，我真是太激动了。

She was excited to learn the news.

她听到这消息很兴奋。