高三英语一轮复习课件：Unit4《Astronomy：the science of the stars》（新人教版必修3）.ppt

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1、英语：高三一轮复习超级课件 Unit4Astronomy：the science of the stars（新人教版必修3）佳作选登(2011浙江高考)话题给校长写信陈述校园中随意涂鸦和乱丢垃圾的现象体裁书信June 8,2011Dear Mr.Headmaster，I am Li Yue，a student from Class 1，Senior.I am writing to draw your attention to some improper behaviour among us students：littering and scribbling.It makes our schoo

2、l dirty and unpleasant，and does harm to the image of our school.I always feel ashamed whenever I see this.It is clearly not appropriate for a student to litter and scribble about.I wonder if the school could place more dustbins around and set up specific rules against such behaviour.At the same time

3、，students should be encouraged to develop good habits and better behave themselves.I believe that，with the joint efforts of both teachers and students，our school will become a more enjoyable place in the near future.Thank you for your consideration.Yours faithfully，Li Yue经典例句亮词1.draw ones attention

4、to.引起对的关注2be appropriate for.对适合3at the same time同时4with the joint efforts of.在的共同努力下5behave oneself表现好典句1.It makes our school dirty and unpleasant，and does harm to the image of our school.这使我们的学校变得脏乱不堪，让人感到很不舒服，这严重损害了学校形象。2I always feel ashamed whenever I see this.无论何时我看到这种现象，总是感到十分羞愧。3I wonder if

5、the school could place more dustbins around and set up specific rules against such behaviour.我想知道是不是学校周围应该放更多的垃圾筒，并制订一些特殊规则来反对这种不良行为。(变式)It is high time that the school should place more dustbins around and set up specific rules to forbid such bad behavior.1(2011陕西高考)The new stadium being built for

6、the next Asian Games will be _ the present one.Aas three times big asBthree times as big asCas big as three times Das big three times as解题指导句意：正在为下届亚运会而建设的新体育场将是目前这个体育场的三倍。本题考查倍数的表达法。比较常见的表达倍数的句型有：.timesasadj./adv.(原级)as.；.timesadj./adv.(比较级)than.；.timesthe length/width/.of.。故选择B项。正确答案B2(2012杭州质检)_

7、is smoking allowed here in the gas station.AAt no time BIn no timeCAt one time DAt time解题指导考查介词短语。at no time“决不”，置于句首，句子用倒装。故选A。此题易误选B项。in no time“立即，马上”，放在句首，不用倒装。正确答案A3(2012日照二模)In ancient times，people rarely travelled long distances and most farmers only travelled _ the local market.Alonger than

8、Bmore thanCas much as Das far as解题指导句意：在古代，人们很少进行长途旅行，大多数农民最远也就到当地的市场。考查副词。题干中未含有比较的意思，所以排除A、B两项；空格处的词用来修饰动词travel旅行，又有后面的地点the local market提示，所以选D。正确答案D4(2012南京模拟)Do you think their table tennis team will win the first place at the coming Asian Games?_.Ours is much stronger than theirs.AOf course B

9、It dependsCDont mention it DBy no means解题指导你为在即将到来的亚洲锦标赛上他们的乒乓球队会获第一吗？决不可能，我们队比他们队强多了。本题考查情景交际用语，A.译为“当然”。B.译为“视情而定”，C.译为：不客气。D.译为“决不”。故选D。正确答案D5(2012杭州质检)His father died in a car accident.He stayed with his mother till midnight，comforting her and being comforted _.Ain public Bin returnCin vain Din

10、turn解题指导句意：他父亲死于一场车祸，他和妈妈呆在一起彼此安慰直到半夜。本题考查短语辨义in public公开地；in return作为回报；in vain徒劳地；in turn依次；反过来。正确答案D.重点单词1 n天文学 n宇航员2 n系统；制度 adj.成体系的3 n宗教 adj.宗教的4 n学说；理论5 adj.猛烈的；激烈的 adj.猛烈地 n暴力astronomyastronautsystemsystematicreligionreligioustheoryviolentviolentlyviolence6 n大气层；气氛7 prep.不同；不像 vt.不喜欢8 adj.基本的

11、；基础的 adv.基本上9 adv.因此；于是10 adj.温和的；文雅的 adv.温和地11 n物理学家 n物理学 adj.物理的；身体的atmosphereunlikedislikefundamentalfundamentallythusgentlegentlyphysicistphysicsphysical12 n质量；团；块；大量 n群众13 adj.有害的 adj.无害的 n.&vt.伤害，损害14 vi.存在；生存 n存在；生存15 n谜；难题 vi.&vt.(使)迷惑；(使)为难 adj.迷惑的 adj.令人迷惑的massmassesharmfulharmlessharmexis

12、texistencepuzzlepuzzledpuzzling.重点短语1 time及时；总有一天2be fundamental 是的基础3 eggs下蛋4be different 与不同5give birth 产生；分娩intolayfromto6 ones turn轮到某人；接着7prevent.阻止；制止8 a result of由于9block 挡住(光线)10depend 依靠；信赖11get close 接近；靠近infromasoutonto12cheer 高兴起来13now 既然；由于14get the of熟悉；掌握15break 突然爆发upthathangout.重点句型

13、1 was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.随后它会变成什么没有人知道，直到3845亿年前，这团尘埃才慢慢地形成一个固体的球状物。What it wasto become2The earth became violent it was not clear whether the shape would last or not.地球变得如此猛烈，以至于它的形状能否持久还不清楚。3This produced a chain reaction，

14、which for life to develop.这就产生了一系列的反应，使得生命有可能发展了。sothatmadeitpossible4But when I tried to step forward，I found I was carried on the earth and fell over.而当我试着向前迈步时，我发觉我被送出很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。twice asfaras1exist vi.存在；生存存在；生存exist on靠为主exist by靠方式为生exist in存在于之中There exists/existed.某地有；存在come int

15、o existence产生；成立；开始存在in existence存在Several people believe the Devil exists in the world.少数人认为世界上存在恶魔。She existed only on milk.她只靠牛奶生存。This new country came into existence in 1951.这个新国家于1951年成立。There exists a lake on the top of the mountain.山顶上有一个湖。2puzzle n难题；谜难题；谜 vt.&vi.(使使)迷惑；迷惑；(使使)为难为难puzzle ou

16、t苦思冥想(解决问题的办法)puzzle over/about绞尽脑汁；冥思苦想a piece of the puzzle(有助于理解难题、神秘事物等的)一条信息/线索puzzling adj.令人迷惑的puzzled adj.困惑的，迷惑不解的 Their reason for doing it is still a puzzle to me.他们为什么这样做对我来说仍是个谜。Ive been sitting here puzzling about what to do.我一直坐在这里苦苦思索该怎么办。Mary read the letter with a puzzled expressio

17、n on her face.玛丽读信时面带困惑的表情。3now that既然；因为now that是固定短语，意为“既然；由于”，引出原因状语从句，that可省略。because“因为”，表示直接的或为人所不知的原因。since“既然”(可与now that互换)，侧重主句。as“由于”，表示显而易见或已为人所知的原因。for“因为”，并列连词，引导的从句，放在主句之后，起补充说明作用。Now that everyone is heres lets start work.既然人都齐了，咱们开始干吧。Now(that)Johns arrived，we can begin.既然约翰来了，我们就可以

18、开始了。4break out突发；爆发break away from脱离；摆脱；放弃；打破break down毁掉；把分解；(身体)跨下来；抛锚break in非法闯入；打断；插嘴break into破门而入；非法闯入break off折断；中断；突然停止break through突围；突破break up分解；打碎；驱散；结束take/have a break休息一下 A quarrel broke out between them.他们之间发生了争吵。Shocked by the sad news，she broke out in tears.那不幸消息使她震惊，她失声痛哭了。My car

19、 broke down on the way.我的车子在路上坏了。Dont break in when he is telling the story.他讲故事的时候别打断他。He broke off in the middle of a sentence.他一句话说了一半就不说了。5in time及时；迟早；总有一天against time争分夺秒地，尽快地ahead of time提前，提早all the time一直，始终as time goes on随着时间的推移at no time绝不，在任何时候都不at one time曾经，一度at a time一次at the same tim

20、e同时，然而，可是from time to time有时，偶尔have a good time玩得愉快in no time立刻，马上 Youll succeed in time because you are always working hard.迟早会成功的，因为你一直在努力工作。Well have that leak fixed in no time.我们马上就把那个漏洞补上。You cant be positive all the time.你不可能总是那样积极乐观。Dont recite all together，one at a time.不要一起背诵，一次一个。6depend o

21、n依赖；依靠Whether we go or not depends on the weather.我们去不去看天气而定。Is your friend coming tomorrow?你朋友明天来吗？That/It(all)depends.He may not have the time.那要看情况，他有可能没有时间。I may depend on it that he will want to come.我可以相信他会来。1Hanks decided to _ his father and now he has gone to live in a lonely island.Abreak a

22、way from Btake away fromCkeep away from Dgo away from解析：break away from摆脱；脱离。答案：A2(2012日照模拟)Most school libraries allow students to borrow two books _.Aat times Bat a timeCin no time Dat one time解析：at a time一次。答案：B3(2012台州二模)_ youve got a chance，you might as well make full use of it.ANow that BAfter

23、CAlthough DAs soon as解析：now that既然，相当于since。答案：A4How long are you staying?I dont know._.AThats OK BNever mindCIt depends DIt doesnt matter解析：It/That/This(all)depends视情况而定。答案：C5(2012聊城模拟)She managed to _ the meaning of that long sentence.Apuzzle BfigureCpuzzle out Dfigure to解析：puzzle out苦思冥想。答案：C6If

24、we hadnt worked so hard，such a good situation wouldnt have _ in our factory.Asurvived BlivedChad Dexisted解析：exist vi.存在；survive vt.经过活下来。答案：D1But when I tried to step forward I found I was carried twice as far as on the earth and fell over.而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。倍数的表达方式表示“甲是乙的

25、几倍大(高、长、宽等)”或“甲比乙大(高、长、宽等)几倍”，可用以下句型：(1)A is three(four，etc.)times the size(height，length，width，etc.)of B.(2)A is three(four，etc.)times as big/large(high，long，wide，etc.)as B.(3)A is three(four，etc.)times larger(higher，longer，wider，etc.)than B.Asia is three times larger than Europe.亚洲是欧洲的四倍大。They hav

26、e three times as many cows as we have.他们的牛是我们的三倍。My house is twice the size of my parents.我的房子是我父母的两倍大。2This produced a chain reaction，which made it possible for life to develop.这就产生了一系列的反应，使得生命就可能发展了。这是“make it形容词/名词to do sth.”句型。该句型中it为形式宾语，指代后面的不定式结构，形容词或名词为宾语补足语。People in the west make it a rule

27、 to buy Christmas presents for their relatives and friends.在西方国家里，人们常在圣诞节购买礼物送给亲朋好友。They made it clear to the public that they did an important and necessary job.他们向公众表明：他们所做的工作重要且必不可少。1Youd better go there by train.The train ticket is _ the plane ticket.Aas cheap three times asBas three times cheap

28、 asCthree times cheaper thanDcheaper three times than解析：考查倍数表达法。A is 3 times比较级than B相当于A is 3 times as原级as B或A is 3 times the名词of B.答案：C2Only by shouting at the top of his voice _.Awas he able to make himself hearBhe was able to make himself hearCwas he able to make himself heardDhe was able to make himself heard解析：only修饰状语主句部分倒装；make oneself done使自己被。答案：C