Unit 8 Green living Section Ⅵ　Grammar —— 一词多性 课件（共18张）+学案（含答案）

Section Ⅵ　Grammar ——— 一词多性 ①When you’re a child， life is one big adventure. ②Teamwork is required in order to achieve these aims. ③The European marketplace offers excellent potential for increasing sales. ④We hope to slow the spread of the disease. ⑤After dinner， he likes to return to his study. 【我的发现】 1.句①②⑤中adventure， aims， study为名词， 意为“冒险”“目的”和“书房”；也可用作动词， 意为“　　　　　　�———�“　　　　　　　　　　　　　　�———�和“　　　　�———�。 2.句③中potential为名词， 意为“　　�———�， 也可用作形容词， 意为“　　　�———�。 3.句④中slow为动词， 意为“　　�———�， 也可用作形容词， 意为“　　�———�。 　　一词多性是英语词汇含义变化的基本特征， 是指通过改变一些词， 尤其是一些熟词的词性而发生意义的变化。英语中一词多性的单词有很多， 以下列举一些， 也希望同学们平时多多积累， 更好地帮助背单词， 做阅读。 1.address n.地址vt.写地址；发表（演说） The president will address his speech at 3：00 pm. 总统将在下午3点发表演讲。 2.arrest n.& vt.逮捕 vt.吸引 The loud noise arrested our attention. 巨大的噪声引起了我们的注意。 3.bridge n.桥 vt.消除隔阂 Not white， certainly， but not really Asian， I try to pave the way between the two worlds and bridge the gap for you. 当然不是白人， 但也不是真正的亚洲人， 我试图在两个世界之间铺路， 为你们架起桥梁。 4.better adj. & adv.较好的， 较好地 vt.改善；优化 A key first step in bettering your evaluation ability is to look carefully at your sources of health information. 提高你评估能力的关键第一步是仔细查看你的健康信息来源。 5.back prep.后面n.后背v.支持 I’ll back him against all the others. 我将支持他反对其他人。 【即时演练】　写出下列句中加黑词的词性及词义 ①Can you break the one hundred dollar bill and give me some change？ 　　　　　　　 ②She coached me in playing football. 　　　　　　　 ③Having been cheated in a business deal， he was reduced to nothing. 　　　　　　　 ④He deserted his wife and children and went abroad. 　　　　　　　 ⑤He was excused from piano practice. 　　　　　　　 维度一：基础题型练 写出下列句中加黑词的词性及词义。 1.The government is aiming at a 50% reduction in unemployment. 　　　　　　　 2.One day a week her mother cleaned and aired each room. 　　　　　　　 3.The nation’s advertisers need to clean up their act. 　　　　　　　 4.Her parents backed her in her choice of career. 　　　　　　　 5.I counted the money.It was more than five hundred dollars. 　　　　　　　 6.The man will get a fine if he parks the car there. 　　　　　　　 7.As we know， the song was a hit at that time. 　　　　　　　 8.These cottages once housed early settlers as they worked the dry Montana soil； now they hold Twitter engineers. 　　　　　　　 9.She matched the carpet with some very nice curtains in colour. 　　　　　　　 10.It’s hard to measure his ability when we haven’t seen his work. 　　　　　　　 维度二：语法与写作 1.Parents and children should communicate more to 　　　　　　　　　　　　　　　　　　　　　　　　　so that they can understand each other be ... ...