相关简介
人教版高中英语必修一《Welcome Unit》Period One PPT课件围绕“交换”与“设计”两大核心词汇展开，通过例句、短语搭配和语境串记，帮助学生掌握exchange与designer的用法及扩展知识。以下为课件主要内容整理。
课堂新知讲练
1. exchange n. 交换；交流 vt. 交换；交流；交易；兑换
Paraphrase：giving each other something
(P2) I'm an exchange student from the UK. 我是一名来自英国的交换生。
(1)an exchange of ... ……的交换/互换
heated exchange 争吵
rate of exchange / exchange rate 汇率
in exchange for ... 作为……的交换
(2)exchange sth. for sth. 交换；互换
exchange ideas/views/information 交流主意/观点/信息
exchange words 交谈
exchange blows/punches = fight 对打；互殴
My sister exchanged gifts with me in the Spring Festival. 妹妹和我在春节时互相交换了礼物。
I'd like to exchange this dress for one in a smaller size. 我想把这件衣服换成一件尺寸小点的。
I've offered to paint the kitchen in exchange for a week's accommodation. 我主动提出粉刷厨房以换取一周的住宿。
2. designer n. 设计者
Paraphrase：somebody whose job is to decide how to make things
(P2) A designer. 一位设计师。
It is designed for anyone under age eighteen. 它是为18岁以下人士设计的。
This project is designed to help homeless people. 这一项目旨在帮助无家可归的人。
【语境串记】
I like the design of the bike which was designed by a famous designer. The bike is designed to attract young people to take exercises. So it is designed for sports lovers.
我喜欢由一位著名设计师设计的自行车。这辆自行车是为吸引年轻人参加锻炼而设计的。所以它是为体育爱好者设计的。
