Lesson 21 ★New words and expressions ☆mad adj.发疯be mad/crazy about:为⋯⋯ 而疯狂go+adj:变得go mad/crazy/insane/bananas ☆reason n.原因for this reason: 由于这个原因☆sum n.量大量： a great many/a great number of+ 可数名词复数plenty of （注意：前面没有a）足够的a sum of:一笔a large sum of:大量的，喜欢跟钱连用a large sum of money an amount of+ 不可数名词：一笔a large amount of:许多☆determined adj.坚定的，下决心的下定决心：v.determine to do decide to do n.make a decision to do be determined to do make up one's mind to do ★Text Mad or not? Aeroplanes are slowly driving me mad.I live near an airport and passing planes can be heard night and day.The airport was built years ago,but for some reason it could not be used then.Last year,however,it came into use.Over a hundred people must have been driven away from their homes by the noise.I am one of the few people left.Sometimes I think this house will be knocked down by a passing plane.I have been offered a large sum of money to go away,but I am determined to stay here.Everybody says I must be mad and they are probably right. ☆or not: 在疑问句的后面表示是还是不是，选择概念mad or not=mad or not mad ☆drive sb mad:逼某人发疯☆night and day: 日日夜夜☆passing plane:过往飞机passing 作定语，正在路过的eg:sleeping baby:正在睡觉的小孩waiting car: 正在等待的车☆for some reason:由于某种原因some+可数名词单数：某一some book some+可数名词复数：一些some books some+不可数名词：一些some water ☆come into use:投入使用use n.s发/s/的音主动概念，没有被动式☆Over a hundred people must have been driven away from their homes by the noise. 这句好好分析一下home:家，强调有感情；house仅仅指房子☆left:leave 的过去分词，表示被留下来的left 作定语放在被修饰词的后面：剩下的☆offer=give: 提供give sb sth/give sth to sb 双宾语双宾语的被...
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