more than+adj to do sth

非常\十分...做某事
比如：I'm more than happy to help you.我非常乐意帮你。

more than修饰形容词和副词及动词，意为 “非常，十分，不只是”
修饰数词，意为“超过，多于”

更加怎样怎样。。
比方more than happy to do....更加乐意做什么。。。
- -原来喜欢长篇大论来着。。

“More than+形容词”等于“很”或“非常”的意思,如：
　In doing scientific experiments,one must be more than careful with the instruments.
I assure you I am more than glad to help you.
PS：
More than的用法　　
A.“More than+名词”表示“不仅仅是”
1)　Modern science is more than a large amount of information.
2)　Jason is more than a lecturer; he is a writer,too.
We need more than material wealth to build our country.建设我们国家,不仅仅需要物质财富.
B.“More than+数词”含“以上”或“不止”之意,如：
3)　I have known David for more than 20 years.
4)　Let's carry out the test with more than the sample copy.
More than one person has made this suggestion.不止一人提过这个建议.
C.“More than+形容词”等于“很”或“非常”的意思,如：
5)　In doing scientific experiments,one must be more than careful with the instruments.
6)　I assure you I am more than glad to help you.
D.more than + (that)从句,其基本意义是“超过（=over）”,但可译成“简直不”“远非”.　难以,完全不能（其后通常连用情态动词can）
--That is more than I can understand .那非我所能懂的.
--That is more than I can tell.那事我实在不明白.
--The heat there was more than he could stand.那儿的炎热程度是他所不能忍受的
此外,“more than”也在一些惯用语中出现,如：
--More often than not （经常）,people tend to pay attention to what they can take rather than what they can give.
---All of us are more than a little concerned about（非常关心）the current economic problems