● 易搞混的 made + 介系词组合：
be made of 被…制成
制作过程中原料本质不变，为物理变化 (例如：改变形状)。
The table is made of wood. 这张桌子是木制的。
be made from 由…制成
制作过程中完全改变原料本质，为化学变化 (例如：发酵)。
Bread is made from flour. 面包是由面粉制成的。
be made into 被制成、变成
原料经加工后做成成品。
Peanuts can be made into oil. 花生可以被制成油。
be made up of 由…组成
My class is made up of thirty students. 我的班级是由三十位学生组成的。
● 好用的情绪过去分词 + 介系词组合：
1. be embarrassed about 感到尴尬的
She is embarrassed about being fat. 她对变胖感到尴尬。
2. be worried about 感到担忧的
There seems nothing to be worried about. 似乎没有什么好担忧的。
3. be surprised at 感到惊讶的
The world is so big that nothing is to be surprised at. 世界之大，无奇不有。
4. be impressed by 感到印象深刻的
They were deeply impressed by his confidence. 他们对他满满的自信感到印象深刻。
5. be satisfied with 感到满意的
She was pretty satisfied with the speech. 她对演讲感到很满意。
6. be touched by 感到感动的
I was touched by the warmth of their welcome. 他们热情的欢迎感动了我。
7. be tired of 感到厌倦的
I was tired of your constant complaints. 我对你持续不断的抱怨感到厌倦。
be tired from/with 因为…而累了
She is tired from doing homework. 因为做作业，让她很累。
8. be frightened of/by 感到害怕的
单纯感到害怕或让你害怕的事可能没有真的发生过，就用 of，例如：
I am frightened of spiders. 我很怕蜘蛛。
如果你有被吓到、感到害怕的经验，就可以用 by 表示，例如：
I was frightened by dogs yesterday. 我昨天被狗吓到了。
9. be troubled with 感到烦恼的
He has been troubled with insomnia. 他一直为失眠感到烦恼。
