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
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