M3Unit4知识点.ppt

1、2013. 04,漳州正兴学校高一英语,Unit 4 Astronomy: the science of the stars Language points,(一)词义匹配 1AtmosphereAa group of related parts which work together forming a whole 2system Bthe mixed gases that surrounds the earth 3fundamental Cfor that reason; for this reason 4theory Dincrease, add to the number of 5th

2、us Every important or necessary 6multiply Fidea that tries to explain something,答案：16BAEFCD,(二)用所给词的适当形式填空 7A big (violence) earthquake occurred in Fudao, Japan in March of last year. 8Being exposed to the sunlight for a long time will be (harm) to ones skin. 9 (like) his brother, he is talkative (健

3、谈的) and has a sense of humour. 10The (puzzle) problem made students present (puzzle),violent,Unlike,harmful,puzzling,puzzled,1solar 太阳系 2a widely theory 一个广泛接受的学说 3 time 及时；终于 4cool 冷却下来；变凉 5be to 对(来说)是基本的 6a reaction 连锁反应 7 eggs 下蛋 8give to 产生；分娩 9in ones 轮到某人；接着 10 .from 阻止；制止,system,accepted,in,

4、down,fundamental,chain,lay,birth,turn,prevent,重点难点探究,1 However，according to a widely accepted theory，the universe began with a “Big Bang” that threw matter in all directions. 然而，一种普遍为人们所接受的理论是：宇宙起源于一次“大爆炸”，这次大爆炸将物质投射到四面八方。,品味经典 When the police arrived，the crowd ran away in all directions. 警察一到，人群就向四

5、面八方跑开了。 自我探究 in all directions in every direction朝四面八方。,归纳拓展 (1)direction n方向；指导；(通常作复数)指示，命令，说明书 (2)a sense of direction方向感 in/from the direction of.朝着/来自方向 under the direction of sb.under ones direction 在某人的指导下,牛刀小试 I saw a woman running toward me in the dark.Before I could recognize who she was，s

6、he had run back in the direction _ she had come. Aof whichBby which Cin which Dfrom which,2 They were in time to produce carbon，nitrogen，water vapour and other gases，which were to make the earths atmosphere. 最终产生了碳、氮气、水蒸气和其他多种气体，从而形成了地球的大气层。,自我探究 in time 及时；终于；迟早，总有一天。,品味经典 They caught the bus in ti

7、me. 他们及时赶上了汽车。 The storm was in time to stop before the sports meeting. 暴雨终于在运动会开始前停了下来。 If you keep on，you will succeed in time. 如果坚持下去，你们总有一天会成功的。,归纳拓展,牛刀小试 (1)_，I lost heart in English learning，but my teacher often said to me，“Keep on studying hard，and youll succeed _.” AAt a time；in time BAt a t

8、ime；on time CAt one time；in time DAt one time；on time,(2)Does he often ask you for help? Oh，no，only_. Aall the time Bat one time Cat a time Dat times 解析：选D。all the time“一直”；at one time “曾经”；at a time一次；at times有时。,3 Water had also appeared on other planets like Mars but，unlike the earth，it had disap

9、peared later. 在像火星这样的其他行星上也出现过水，但和地球不同的是，这些水后来都消失了。,品味经典 Unlike her brother，she is diligent. 和她兄弟不同，她很用功。 Her latest novel is quite unlike her earlier works. 她最近的小说和她以前的作品截然不同。 It is unlike Beth to drink so much.I wonder if she is all right. 贝思喝这么多可不像她平时，我想知道她是否安好。,自我探究 unlike prep.不同；不像。 归纳拓展 (1)un

10、like adj.不同的；相异的 (2)likely adj.可能的 It is likely that. 可能 sb./sth.be likely to do sth.有可能做某事 not likely 才不呢，绝不可能 (3)dislike vt. 不喜欢,牛刀小试 (1)(2010年高考浙江卷)Would she mind playing against her former teammates? _ She is willing to play against any tough players. AI think so BIm not surprised. COf course. D

11、Not likely!,解析：选D。考查交际用语。句意为“她会介意与她之前的队友们对垒吗？不会的。她喜欢与任何强劲的选手比赛。”I think so.“我想是这样的”；Im not surprised.“一点也不奇怪”；Of course.当然；Not likely！不会。此处表示不介意，所以选择D项。,(2)(2011年唐山一中模拟题)The festival has been a great success，_ last year when it rained nonstop. Alike Bunlike Calike Ddislike,解析：选B。题意：“今年这个节日过得很成功，不像去年

12、过节时，雨下个不停”。根据题干，此处需用介词，故排除C、D项。unlike意为“不同；不像”，符合题意。alike“相像的；类似的”。,4 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. 很多科学家相信，由于地球上长期有水的存在，使地球得以把有害气体和酸性物质溶解在海洋里。,品味经典 Your smoking can be harmful to t

13、he health of your children. 你吸烟会危及孩子的健康。 It is harmful to your heath to drink too much. 过量饮酒对你的身体有害。,自我探究 harmful adj. 有害的；造成伤害的。 归纳拓展,牛刀小试 (2011年杭州高一检测)Please dont do anything harmful _ our nature，or we humans will have no _ each other. Ato；fun about Bfor；fun with Cfor；fun about Dto；fun with,解析：选D。

14、考查介词。句意为“不要做任何对自然有害的事，否则我们人类就会过得不快乐”。harmful常跟to搭配；have fun“玩得(过得)开心”，和with搭配。,5 They multiplied and filled the oceans and seas with oxygen，which encouraged the later development of early shellfish and all sorts of fish. 它们繁殖起来就使得早期的海洋充满了氧气，这为后来早期贝类及其他各种鱼类的发育创造了条件。,自我探究 multiply vi.& vt. 乘；使增加；使繁殖。

15、归纳拓展,If you divide $100 by three，what do you get? 如果将100美元除以3，你将得到什么？,牛刀小试 When animals have enough food，they generally _quickly. Aaffect Bspread Cexplode Dmultiply 解析：选D。句意为“当动物有足够的食物时，它们繁殖起来会非常迅速”。affect影响；感动；spread伸展；传播；流传；蔓延；explode爆炸；进发；multiply乘；使增加；使繁殖。,6 These animals were different from all

16、 life forms in the past，because they gave birth to young baby animals and produced milk to feed them. 这些动物不同于以往所有的生命形式，因为它们能从体内生产出幼仔并给幼仔哺乳。,品味经典 Giving birth to a baby is a dreadful thing for the poor. 生儿育女对于穷人来说是一件可怕的事情。 This event gave birth to peace movement. 这次事件引发了和平运动。 自我探究 give birth to(sb./s

17、th.)产生；分娩。,牛刀小试 完成句子 (1)信不信由你，那位老妇人生了6个孩子，但没有一个活下来。 Believe it or not，the old lady _，but none survived.,(2)对历史的研究孕育了社会科学。 _the study of history_ the social sciences. 答案：(1)gave birth to 6 babies(2)It was；that gave birth to,7 Thus they have，in their turn，become the most important animals on the plane

18、t. 于是，它们接着成为这个星球上最重要的动物。 品味经典 This week I am to do the housework in my turn. 这一周该我做家务了。 When it is in my turn，I am too excited to speak. 当轮到我时，我激动得都说不出话来了。,自我探究 in ones turn 轮到某人；接着。 归纳拓展,They answered the teachers questions in turn. 他们依次回答老师的问题。 We did the work by turns. 我们是轮流做这项工作的。 It is your tur

19、n to read the text. 该轮到你读课文了。 We take turns to do the housework. 我们轮流做家务。,牛刀小试 (1)People try to avoid public transportation delays by using their own cars，and this _ creates further problems. Ain short Bin case Cin doubt Din turn 解析：选D。句意为“人们试图通过用私家车避免交通堵塞，这反过来却带来更多的问题”。in short简而言之；in case以防万一；in d

20、oubt怀疑。,(2)A clean environment can help the city bid for the Olympics，which _ will promote its economic development. Ain nature Bin return Cin turn Din fact 解析：选C。in nature本质上；in return作为回报；in fact事实上。,8 They are putting too much carbon dioxide into the atmosphere，which prevents heat from escaping f

21、rom the earth into space. 它们把过多的二氧化碳排放到大气层中，这使地球上的热不能释放到太空中去。,牛刀小试 All possible means _.However，nothing can _ him dying of lung cancer. Ahas tried；stop Bhave tried；keep Chas been tried；prevent Dhave been tried；stop 解析：选D。means单复数同形，因为前面有all修饰它，所以其后的谓语应为复数，而且需用被动，故选D。,9 How life began on earth is one

22、 of the biggest puzzles that scientists found hard to solve. 地球上生命的起源是科学家们难以解决的最大疑惑之一。 品味经典 Its quite a puzzle to us why he did that. 他为何那样做，我们完全搞不懂。,The question puzzled them. 那个问题把他们难住了。 自我探究 puzzle n迷，难题，困惑vt.& vi.(使)迷惑，(使)为难。,归纳拓展,助记 The puzzled look on her face suggested she was puzzling over t

23、he puzzling math problem. 她困惑的表情暗示了她正苦苦思考那个令人困惑的数学问题。,牛刀小试 (2011年长沙高一检测)The boys missing made the police _. Apuzzle Bpuzzling Cpuzzled Dbe puzzled 解析：选C。句意“那个男孩的失踪让警察很困惑”。puzzled困惑的；puzzling令人困惑的。本题中puzzled作宾补。,10 What it was to become was uncertain until between 4.5 and 3.8 billion years ago when t

24、he dust settled into a solid globe. 随后它会变成什么没人能知道，直到3845亿年前，这团尘埃才形成一个固体的球状物。,自我探究 此处“be不定式”结构表示注定会发生的事。 归纳拓展,The new rule is to be carried out very soon. 这项新制度很快就要实行。,Mirror told me that she was to settle in China. 米拉告诉我她要在中国定居。 You are to wait here until I return. 你在这里等到我来。 The medicine is to be ta

25、ken three times a day after meals. 这种药饭后吃一天三次。,牛刀小试 (1)(2010年高考大纲全国卷)The discovery of gold in Australia led thousands to believe that a fortune _. Ais made Bwould make Cwas to be made Dhad made 解析：选C。a fortune与make之间构成逻辑上的被动关系，要用被动式；再根据句中的谓语用的是一般过去时，可知用过去时，故选C。,(2)The novel written by the author _ b

26、est，but five years ago no one could have imagined how great a role he _ in the literary world. Asells；was to play Bselling；was playing Csold；had played Dsells；is playing 解析：选A。第一空用一般现在时表示现在的情况，sells best虽为主动形式，但表示被动意义；第二空用was to play表示注定要发生的事情。,11 This produced a chain reaction，which made it possible for life to develop. 这就产生了一个连锁反应，使生命的发展成为可能。