人教版高中英语必修3unit4课件--育英科技王衡英语.ppt
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1、易学,生动,详细,人教版高中英语必修3同步辅导,王衡高中英语,Unit 4 Astronomy: the science of the stars,一、词汇与重点词,1.in time: sooner or later; eventually 迟早;最终 我迟早会遇见他. Ill see him in time. in time (for sth. /to do sth.): not late 及时;不迟 她会及时回来准备晚餐. She will be back in time to prepare dinner. 你认为我们能及时赶上火车吗?,Do you think we can get
2、there_ the train?,in time for,Exercise:,与time相关的短语: on time 按时;准时 in no time 立刻,马上 at times 有时 at a time 每次;依次 once upon a time 从前 at one time 从前 for the time being 暂时 from time to time 不时地,allow to = permit to do harmful adj. Opp: harmless ; harm n./v. be harmful to sb./sth.= do harm to sb. /sth. =
3、do sb/sth harm 对有害,过多的二氧化碳对环境有害. Too much carbon dioxide is harmful to / does harm to the environment.,2. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.,3.This produced a chain reaction, which made
4、it possible for life to develop. Chain reaction 连锁反应 Make it possible for life to develop. 使生命的发展成为可能 make it + adj./n. sb. /sth. to do sth. 老师让他们跟容易地明白那个问题. The teacher _.,made it easy for them to understand the question,4.Others, called amphibians, were able to live on land as well as in the water
5、. 另外一些叫作两栖动物,它们既能在陆地上生活也能在水里生存. as well as 表示“(除.之外)也; 既又”. 如:Im learning French as well as English. 我学英语之外还学法语. He grows flowers as well as vegetables. 他既种菜也种花 He as well as I _ rock music. . “就远原则”,likes,5. They produced young generally by laying eggs.,Its generally believed that一般认为,generally spe
6、aking 一般而言,概括来说,1) Its generally believed that girls work harder than boys do.,2) Generally speaking, women cry more easily than men.,1) multiply v. 乘: 增加,繁殖;,7乘以4等于28.,4 multiplied by 7 is twenty-eight.,我们的功课自上高中以来增多了.,Our homework have multiplied since we came to high school.,蚊子在夏天繁殖得很快.,Mosquitoe
7、s multiply rapidly in summer.,6. They multiplied and filled the oceans and seas with oxygen , which encouraged,= Multiply 7 by 4 to make 28.,7.They laid eggs too and existed on the earth for more than 140 million years. exist in 存在与之中;exist on 靠为生 It was impossible for them to _such a small income.
8、The universe _space.,exist on,exists in,in existence 现存的 come into existence=come into being 开始存在、成立 When did this world come into existence?,8.These animals were different from all life forms in the past, because they gave birth to young baby animals and produce milk to feed them. give birth to 1)
9、生(孩子) Shes just given birth to a healthy baby girl. 她刚刚生了个健康的女婴。 2) 产生 The extraordinary experience gave birth to his latest novel. 这段奇特的经历促成了他的最新的一部小说的诞生。,9.Thus they have, in their turn, become the most important animals on the planets on the planet. thus adv. 因此;从而 She studied hard, _ .,thus she
10、got high marks,He forgot to turn on the radio and _.,thus missed the program,2) In ones turn 轮到某人,It will be _ to be on duty tomorrow.,in Sams turn,10. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.,阻止某人做某事 :,prevent sb. (fr
11、om) doing sth.,stop sb. (from) doing sth.,keep sb. from doing sth.,1) We must prevent them from making trouble.,2) You should prevent the child from injuring himself.,注意:keep sb. from doing sth.中from不可省略, 但如在被动语态中,他们中的from都不可省。,11.Whether life will continue on the earth for millions Of years to come
12、 will depend on whether this problem can be solved.,depend on : 依赖, 依靠,It /that all depends那得看情况而定,我们都靠你来做决定了 Well all _to make a decision. 明天是否能开校运会取决与天气 Whether to hold the sports meeting or not will _.,depend on you,depends on the weather,depend on sb. 依靠,相信某人 depend on sth. 取决与某物,12、fundamental,
13、 primary, elementary basic,f:原则上的,最基础的,也可以理解为最根本的,像宪法的地位就可以算作fundamental p:主要的,初级的,首要的,强调一个先后顺序 e:基础的,这里的主要意向是简单的,初级的,如果小学教育就是elementary b:基本的,必要的,13 react onreact to,react on 起作用于;对有影响;对产生影响 例: The rise of the charges for water and electricity will react on living expenses. 水电费的提高将对生活费用产生影响。 react
14、to 作出反应;起反应 例: He reacted well to penicillin. 他对青霉素的反应良好。,14. thus,thus的基本意思是“如此,这样,以此方式”。 Hold the wheel in both hands, thus. 用双手握住方向盘 The text runs thus. 原文如此 thus也可作“其结果是,因此,于是”解。 He didnt work hard. Thus he was fired. 他工作不努力,因此被解雇。,15、crash,crash的基本意思是“撞碎,坠毁”,表示猛跌或猛撞并发出突然猛烈而又宏大的声音,引申可表示商业或金融机构突然
15、破产或垮掉”。 crash后常接介词tointo表示“撞毁”,接down表示“摔下”,接out表示“冲出”等 He crashed his car into a wall. 他的汽车撞到了墙上。 The rocks crashed down onto the car. 岩石轰隆一声砸在汽车上。,二、课文解析,Isaac Newton, 牛顿 16421727,Universal gravitation 万有引力,Einstein, Albert (1879-1955) 爱因斯坦,Relativity(相对论) and the Cosmos (宇宙),The theory about black
16、 holes (黑洞理论),霍金,Solar system,水星最接近太阳,是太阳系中第二小行星。水星的英文名字Mercury来自罗马神墨丘利。墨丘利也就是希腊神话中的Hermes。或许由于水星在空中移动得快,才使它得到这个名字。 金星是离太阳第二近,太阳系中第六大行星。古希腊人称之为Aphrodite(阿芙罗狄蒂),是希腊神话中爱与美的女神。而在罗马神话中爱与美的女神是维纳斯Venus ,因此金星也称做“维纳斯”。 地球是距太阳第三颗,它是太阳系类地行星中最大的一颗,也是太阳系第五大行星,行星年龄估计大约有45亿年(4.5109)。地球是唯一一个不是从希腊或罗马神中得到的名字。Earth一词
17、来自于古英语及日耳曼语。这里当然有许多其他语言的命名。在罗马神话中,地球女神叫Tellus肥沃的土地。 火星为距太阳第四远,也是太阳系中第七大行星。因为火星在夜空中看起来是血红色的,所以在西方,以罗马神话中的战神Mars命名它。,木星是离太阳第五颗行星,而且是最大的一颗。木星是天空中第四亮的物体。木星是自转最快的行星。在西方称它为朱庇特Jupiter,是罗马神话中的众神之王,相当于希腊神话中的宙斯(Zeus)。 土星是离太阳第六远的行星。是太阳系中仅次于木星的第二大行星。中国古代称之为镇星或填星。土星的英文名字Saturn(以及其他绝大部分欧洲语言中的土星名称)是以罗马神的农神萨杜恩命名的。希
18、腊神话中的农神Cronus是Uranus(天王星)和该亚的儿子,也是宙斯的父亲。,天王星是太阳系中离太阳第七远行星,颜色为灰蓝色,是一颗巨型气体行星(Gas Giant)。以直径计算,天王星是太阳系第三大行星;天王星的命名,是取自希腊神话的天神乌拉诺斯 Uranus。乌拉诺斯是古希腊神话中的宇宙之神,是最早的至高无上的神。他是该亚的儿子兼配偶,是Cronus(农神土星)、独眼巨人和泰坦(奥林匹斯山神的前辈)的父亲。 海王星为太阳系九大行星中的第八个,是一个巨行星。海王星。目前海王星是太阳系内离太阳第二远的行星。海王星的名字是罗马神话中的海神涅普顿(Neptune)。古希腊神话中海神叫波塞冬 (
19、Poseidon)。,Man had evolved from apes.,Earth,How life began on the earth,The Big Bang,Big Bang,A solid ball,Atmosphere,The earth,It was full of water.,Original cells.,The cells in the water began to separate.,water,Plants in the water,Shellfish and fish,Plants on land,Insects and amphibians,Reptiles,
20、Dinosaurs,Mammals,Man had evolved from apes.,No one knows exactly how the earth began, as it happened so long ago. However, according to a widely accepted theory, the universe began with a “Big Bang” that threw matter in all directions. After that, atoms began to form and combine to create stars and
21、 other bodies. For several billion years after the “Big Bang”, the earth was still just a cloud of dust. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so violent that it was not clear whether the shape would
22、 last or not. It exploded loudly with fire and rock. They were in time to produce carbon, nitrogen, water vapor and other gases, which were to make the earths atmosphere. What is even more important is that as the earth cooled down, water began to appear on its surface【背此句,注意as用法】. Water had also ap
23、peared on other planets like Mars but, unlike the earth, it had disappeared later. It was not immediately obvious that water was to be fundamental to the development of life. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids in
24、to the oceans and seas. This produced a chain reaction, which made it possible for life to develop.,A widely accepted theory 一个被广泛接受的理论(widely是何种词性),combine.with.表示“把结合起来”, 没有combine together的说法,很明显together是多余的,what 在此引导一个主语从句, 同时what 又在该从句中做了become的表语。它将要变成什么,Even more important 更重要的是,even 修饰比较级,Pr
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