在英语里，不仅单一的形容词可以作表语，形容词词组也可以充当表语。形容词词组包括形容词加上其他结构。
（1）形容词＋介词＋名词（代词或动名词）。其中的介词由前面的形容词所决定。
I am sorry for you. 我为你感到难过。
Jack is good at playing basketball. 杰克擅长打篮球。
China is rich in natural resources. 中国自然资源丰富。
She is weak in maths. 她数学差。
We are not afraid of difficulty. 我们不怕困难。
The child is tired of eating the same food every day .这个孩子对天天吃同样的食物感到厌烦。
（2）形容词＋动词不定式。这个句型常常用来表示原因、结果等。
Most villagers are able to read and write. 大多数村民能读会写。
I am glad to meet you here .我很高兴在这儿遇到你。
He was sorry to hear about the bad news.他听到这个不好的消息感到很难过。
The boy was afraid to see his stepfather.这个男孩不敢去见他的继父。
Be careful not to make the same mistake in your homework .小心不要在家庭作业里再犯同样的错误。
The girl is lucky enough to have such a good mother.这女孩有这样的好母亲是够幸运的。
（3）形容词+that从句。
He is hopeful that he will soon get better. 他希望不久以后会好一点。
He is proud that he is a scientist. 他为自己是一个科学家而感到自豪。
