only：指数量上仅有的，仅存的，修辞名词时与the连用。

single：指单一的，单个的，置于名词前。

用unique, only 或single 填空:　

(1) He is the ___________ person who is fit for the job.

(2) The ________________ painting was discovered in the king's tomb.

(3) We didn't get a _____________ reply to our advertisement.

3．skip (skipped, skipped) skipping 跳绳

v. 蹦跳着走 (+across/along etc.)

Maria skipped along at her mother's side.

玛丽亚在她妈妈身边蹦蹦跳跳地向前走。

v. 略过，跳过（书中的一部分） (leave sth out)

I decided to skip the first two chapters. 我决定跳过开头两章。

拓展：skip out / skip off. 偷偷离开，秘密逃走

Martha skipped out without paying her bill. 玛莎没付账就偷偷地走了。

完成下列句子:

(1) Children are fond of ___________________(跳绳).

(2) _________________（跳过） the dull part of the book.

4. refer to 涉及, 与......有关, 查阅, 将......递交...... 。 to 是介词，后接名词、代词或动名词。

You may refer to your notes if you want. 如果你想, 你可以查阅你的笔记。

Our teacher referred to you at the meeting. 我们老师在会上提到过你。

This paragraph refers to the events of last year. 这一段说的是去年发生的事。

n. reference 参考 a reference参考书 with/in reference to 关于......

翻译：如果你不懂这单词，你可以查字典。

______________________________________________________________________________

5. They are dressed in beautiful costumes, skipping back and forth to the rhythm of loud drums. 她们身着漂亮的服装，合着鼓声扭来扭去。

A) dress 的用法：

dress可用作不及物动词，表示自己穿衣服这个动作；dress也可用作及物动词，接反