新概念英语第一册Lesson-129-130.doc

Lesson 129-130词汇：1.wave 挥手 He waved us quiet. 他挥手要我们别出声。 wave to sb. 平等的挥手，仅仅表示一个方向,向某人招手 wave at sb. 朝某人含有at的词组往往都有不礼貌的成分 shout at 朝某人喊 point at 指着某人 laugh at 嘲笑2.dream v.做梦 n.梦想I didnt dream last night. 我昨晚没有做梦。I often dream of becoming a pilot. 我时常梦想成为一名飞行员。dream of doing sth.句子：1.Where do you think you are? 你认为你现在是在哪儿, do you think 是用在特殊疑问句中的插入语,用来征询见解或表达看法。因为句中插入语已经是疑问式,主谓倒装了,所以you are的位置不能再对调了。插入语一般是对句子加一些附加的解释,在句子中作独立成分。常用来作插入语的结构有I hope, I think, Im afraid, you know等。插入语可以位于句尾或句中,有时也可出现在疑问句中。Where do you think you are? On a race track? 这是一个宾语从句, 陈述句是这样的:I think we are on a race track. 否定句要在前面否定:I dont think we are on a race track. 像这种推测类的动词,如think、sure等,要在主句上否定,如:I dont sure this thing is true.2. You must have been driving at seventy miles an hour. I cant have been.must have been doing sth. 一定/准是在做某事。表示对过去某一时刻，某一时间内的动作的猜测，或过去一直到现在的一段时间内动作的猜测。you must have been drinking when I called you last night. 昨天晚上我给你打电话的时候，你肯定在喝酒。这种结构用来表示对过去正进行的事情的推测。下文中的cant have been是 cant have been driving的省略式,在意思上与must have been driving正相反。cant（must表猜测的否定形式）must+动词原形 eg: You must be sick. 你一定是病了。must+be+v-ing eg They must be drinking now。 他们一定在喝酒。must+have+过去分词 表示对过去动作的猜测。 You must have drunk last night. 昨晚你一定喝酒了。表示速度用atat 1000 miles a second 以每秒1000英里的速度3. I was doing eighty when I overtook you. doing在这里表示以的速度行进4.I wont charge you this time. But youd better not do it again! charge 罚款Youd better do sth. 最好做某事，否定句 Youd better not do sth. Youd better come back early. / Youd better not tell him the truth. 5. take/ follow ones advice是“听从劝告”的意思。语法：1. 表示猜测和推断的情态助动词must和cant must与cant不仅能表达对现在和将来的猜测和推断，而且能表达对过去的猜测和推断这时可用 must have been表示肯定的推断，用cant have been，而不是mustnt have been，来表示否定的推断，如后面跟进行时则表示对过去正在进行的动作的猜测。请看例句： You must have been driving at seventy miles an hour. 你当时肯定正以每小时70英里的速度行驶。 I didnt see it. I must have been dreaming. 我没看见。我当时一定是在胡思乱想吧。 She cant have been 29.She must have been 36. 她那时肯定不会是29岁，她一定36岁了。 He cant have been reading. He must have been sleeping. 他那时肯定不是在看书，他准是在睡觉。2. must和have to的用法 两者都表示必要性，两者的主要区别在于：A. must表示主观意愿，而have to表示