in search of sb. / sth.

6. People eat food in the shape of skulls and cakes with "bones" on them.

(Line 15)

with "bones" on them 在此是用作定语，修饰skulls and cakes.

英语中，with复合结构的构成是：with + n. /pron. + 宾补可作状语、定语。其中，宾补可以是名词、代词、形容词、介词短语、V-ing、V-ed、不定式。

Eg. With this room still yours, you should keep it clean and tidy. （代词）

Jack was so surprised that he stood there, with his mouth wide open. (形容词)

With all the work on hand, he shouldnt have gone to the cinema last night. （介词短语）

With nobody to know the answer, we went to the teacher for help. （不定式）

Green fell asleep, with the light still burning. （V-ing）

With all the trees destroyed, water with a lot of soil rushed into the villages in the storm.

(V-ed)

7. dress up : to wear one's best clothes 穿上盛装

**dress (sb) (in sth/as sb/sth): put on fancy dress,etc. 化装打扮

Eg. Children love dressing up.

We dressed up for the wedding.

8. play a trick /tricks(on sb) 捉弄某人,开某人玩笑 类似是表达还有laugh at sb 嘲笑某人；make jokes about sb开某人的玩笑。

Eg. It's acceptable to play tricks on your friends on April 1st. 4月1日那天,和朋友们开玩笑是可以接受的.

He likes to play a trick on others.

9. look forward to sth/doing sth 期待某事/做某事: expect (usually with pleasure)（通常以愉快的心情）注意：这里的to 是介词。

Eg. We're looking forward to seeing you again. 我们盼望再见到你。

Boys and girls are looking forward to Children's Day.

下列短语中的to 也是介词。

1.be similar to与......相似 2. devote .... to... / be devoted to ... 投身于...

3. relate...to/with把......与......联系起来，be related to 与......有关系

4. be/become/get addicted to"对......上瘾；沉溺于"