世界上60%以上的信件是用英语书写的，上两个世纪英国和美国在文化、经济、军事、政治和科学上的领先地位使得英语成为一种准国际语言。精品小编准备了高二英语必修3Unit5单元知识点，具体请看以下内容。

1.重点词汇

1. chat vi.&n. 聊天;闲聊

[典例]

1). What were you chatting to him about? 你和他聊了些什麽?

2). I had a long chat with her (about her job).(关於她的工作)我和她聊了很久。

[重点用法]

chat to/with sb (about sth) = have a chat with sb (about sth) 与某人聊天、闲谈……

2. eastward adv. 向东 adj. 向东的;朝东的

[典例]

1). They were traveling eastward(s) to the city which appeared in their dreams. 他们朝着东边向梦想中的城市进发。

2). The plane flied in an eastward direction. 飞机向东边飞去。

[词语归纳]

eastward(s) adj./adv. 向东的，向东地

southward(s) adj./adv. 向南的，向南地 westward(s) adj./adv. 向西的，向西地 northward(s) adj./adv. 向北的，向北地

southeastward(s) adj./adv. 向东南的，向东南地 northeastward(s) adj./adv. 向东北的，向东北地 southwestward(s) adj./adv. 向西南的，向西南地 northwestward(s) adj./adv. 向东北的，向东北地

3. surround vt.&vi. 包围;围绕 surrounding adj. 周围的 surroundings (常用pl.)环境

[典例]

1). Trees surround the pond. 树木围绕着池塘。

2). The house was surrounded by high walls. 房子的四周有高墙。

[重点用法]

surround...with... 用……包围……

[典例]

1). Can you measure accurately with this ruler? 用这把尺子能量得准吗?

2). It’ s hard to measure his ability when we haven’ t seen his work. 没有见过他的作品, 很难估计他的能力。

[重点用法]

measure A by B 用B衡量A sth. measures 2 metres by 4 metres 某物长4米宽2米 measure sb. for a suit = make a suit to sb’ s measure 给某人量身做一套衣服

5. mix vt.&vi. 混合;调配 mixture n.[u,c] 混合(物);混合状态

[典例]

1). The chemist mixed (up) some medicine for me. 药剂师给我配了些药。

2). Oil and water don’ t mix. 油和水不能混合。

3). Oil won’ t mix with water. 油不能和水混合。

[词语归纳] mix的短语：

1 be surrounded by/with... 周围都是…… 4. measure vi.&vt. 测量;衡量;判定 n.[c,u] 尺寸;量具;计量单位;措施

mix A and/with B 把甲与乙拌和起来

mix sth. in/into把某物掺进去

[典例] mix sth. up 把某物拌和;混淆某物 be/get mixed up with sth./sb. 与某事有关;与某人混在一起 6. nearby adj.附近的;邻近的 adv.在附近

1). Her mother lived in a nearby town. 他的妈妈住在一个附近的城镇。

2). Her mother lived nearby. 他的妈妈住在附近。

[重点用法]

nearby作形容词时，既可放在被修饰词之后也可放在被修饰词之前。如：

There were complaints from nearby residents / residents nearby.

7. terrify vt.使恐怖;恐吓 terrified adj.恐惧的;受惊吓的 terrifying adj.(令人)可怕的

[典例]

1). He terrified his children with ghost stories. 他讲鬼故事吓坏了他的孩子。

2). Her husband’ s violence terrified her. 她丈夫的暴力使她感到恐惧。

[重点用法]

be terrified at/by sth. 被某事(物)恐吓 be terrified of sth. = be afraid of 害怕某事(物)

8. impress vt.使印象深刻;使铭记 impression n.[c]印象;感想 impressive adj.给人印象深刻的