(精讲特训)2014高考英语 考前必备导学案 Unit4 Astrono.doc

世纪金榜 圆您梦想 2014高考考前争分必备导学案：Unit4 Astronomy The science of the stars（人教版，必修三）范文赏析与背诵你班就“是否应该花费巨大的人力、物力和财力进行太空探索”进行了讨论。1. 有些人认为太空探索完全是浪费时间和金钱。理由是收效甚微、花费巨大。2. 但大多数同学认为进行太空探索利大于弊，许多新产品，如气象、通讯卫星都直接得益于太空研究，使全球受益匪浅。3. 你的观点-Do we need space exploration?Man has been fascinated by outer space for thousands of years. It has been over forty years since mans first landing on the room. Now some people believe that space exploration is a waste of time and money. They point out the fact that it cost billions of dollars to carry on the space research, but a little information has brought back.However, every coin has two sides. There are still a majority of other people who believe that space exploration has more disadvantages. And I agree with those people. Many new products, such as weather and communication satellites, are also products of space programs, and the have benefited people all over the world. And whats more, scientific knowledge about outer space has been acquired by mankind.We believed that it will bring more benefits in the future, which we cannot even imagine now. Space exploration is challenge o human beings. Thats why several nations try hard to carry out space exploration continuously.单元知识必备核心考点： in time 3年1考 prevent-from3年1考 make+宾语+宾补3年3考 倍数3年2考1unlike prep.不同adj不同的；不相似的Something like几分像-Its like/unlike sth. 做某事实在像/不像某人dislike vt不喜欢，讨厌1). There was something like 500 people in the audience.2). Unlike other gifts, it came without wrap.3). Its unlike him to be late; hes usually on time.4). She dislikes his way of speaking.2exist Vi存在；生存1). Man cant exist without air.2). There exist many sources of energy.3). When did the world come into existence?Guess：They exist on very little money.3. puzzle n谜；难题 vt/vi（使）迷惑 1). Their reason for doing it is still a puzzle to me. 2). But his curiosity was difficult to control and this new computer really puzzled him. 3). Im in a puzzle as to what to do next.4). I saw him puzzle over a match problem.5). He puzzled (his brain) all day over the problem, but didnt solve it.4pull n. vt.拉（力）；拖；牵引力 1). I felt a pull at my sleeve and turned around. 2). He will pull through his illness soon. 3). They have managed to pull down the old building. 4). The train pulled in and all the passengers got off.Guess: Who can resist the pull of her charm?归纳：pull down 拆毁；拆掉（房屋等） pull in （列车等）驶进、到站；（船）靠岸 pull through恢复（健康）；（使）渡过难关 拓展：推push 拉pull5in time 及时；终于 1）He might get here in time, but I cant be sure. 2) If you keep on, you will succeed in time.拓展：on time 准时 at a time 每次；逐一 from time to time 有时；偶尔 in no time 立刻；马上 time and time again 一次又一次；一再6prevent -from- 阻止；制止1) Guards stood at the door to prevent anyone from leaving.2) His advice kept me from making a serious mistake.3) Once he has made up his mind, no one can prevent him from carrying out the plan.7cheer up 感到高兴；感到振奋 1) Feeling blue about the world? Cheer up. 2) The audience stood up to cheer on their team, the Vancouver Canucks. 3) The news cheered him up.8now that 既然 （口语中可省略that，这时that失去了“现在”的含义）since 1) Now that you have finished your work, youd better have a rest. 2) Now (that) the weather is fine, lets go for a ride. 3) Now (that) you have grown up, you can make up you mind by yourself. 4) Now that Ive seen how he lives, I know why he needs so much money.9. break out 突发；爆发 1) Should another world war break out, what would become of human being? 2) The thought made him break out in a cold sweat.拓展：break away from 脱离（党派）；摆脱（控制） break down 毁掉；坏掉；（计划、谈判0失败 break up 打碎；拆散；（会议）结束；分裂（解体） break off （使）停止；中断；折断 break into 强行进入（某处）.重点句型详解1. This produced a chain reaction, which made it possible for life to develop.这就形成一个连锁反应，使生命发展成为可能。 make+宾语+宾语补足语（名词或形容词/不带to的不定式/过去分词/介词短语）1）Insects would make it impossible for us to live in the world.2）Spaceships make it possible to travel to the moon.3）New technologies have made it possible to turn out new products faster and at a lower cost.拓展：注意下列句子中it的用法：1) I hate it when people speak with their mouths full.我不喜欢人们说话时嘴里有满满的东西。2) It is/was the序数词timethat.主语have/had done.这是某人第次做3) It is (high) time that.主语did/should do.是该做的时候了。4)Its up to sb. to do. 该某人做了2But 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。倍数的表达方式有：(1)“A倍数形容词或副词的比较级thanB”，表示“A比B大(长、高、宽等)多少倍”。(2)“A倍数as形容词或副词的原级asB”，表示“A是B的多少倍”。(3)“A倍数the size/height/length/width, etc.ofB”，表示“A是B的多少倍”。(4)“A倍数what从句”，表示“A是的多少倍”。Asia is four times as large as Europe.The size of Asia is four times that of Europe.Asia is four times the size of Europe.Asia is three times larger than Europe.亚洲是欧洲的四倍大(比欧洲大三倍)。Our total income of 1994 was double that of 1992.我们1994年的总收入是1992年的两倍。The production now is three times what it was ten years ago.现在的产量是十年前的三倍。What a table! Ive never seen such a thing before. It is not half as wide as it is long.重点单词1_ n天文学astronomer n天文学家2_ n系统；体系；制度3_ n学说；理论theoretical adj.理论上的4_ n球体；地球仪；地球global adj.全球性的；全世界的5_ adj.猛烈的；激烈的；强暴的violence n暴力violently adv.猛烈地6_ n大气层；气氛7_ prep.不同；不像dislike vt.不喜欢8_ n出席；到场；存在present adj. & n. & v在场的；目前，现在；出席；颁发9_ adj.有害的；伤害的harm n危害，害处harmless adj.无害的10_ vi.存在，生存existence n存在，生存11_ n谜；难题vt. & vi.(使)迷惑；(使)为难puzzled adj.迷惑的puzzling adj.令人迷惑的12_ n万有引力；重力13_ n卫星；人造卫星14_ n气候15_ n宇宙飞船16_ n. & vt.拉(力)；拖；牵引力17_ vi. & vt.(使)浮动；(使)漂浮 n漂浮物18_ n质量；团；块；大量；(复)群众重点短语重点短语1_及时；终于 2_下蛋3_ 产生；分娩 4_ 轮到某人；接着5_ 阻止；制止 6_挡住(光线)7_ 感到高兴；感到振奋 8_ 既然9_突发；爆发 10_ 密切注视；当心；提防11_ 冷却 12_ 也；还有13_依靠；依赖，取决于 14_ 靠近单项选择1. Thank God youre safe! -I stepped back. just _ to avoid the racing car. (2012江苏) A. in time B. incase C. in need D. in vain2.Im thinking of the test tomorrow. Im afraid I cant pass this time._！ Im sure youll make it. AGo ahead BGood luck CNo problem DCheer up3. With the words, he _ a wide mouth jar from his pocket and set it on the table in front of him.Apulled out Bchecked out Cstuck out Ddropped out4. As the busiest woman in Norton, she made _ her duty to look after all the other peoples affairs in that town. A.this B.that C.one D.it5Its _ for the Shenzhou spaceship that every Chinese feels cheerful and proud.A. so a successful flight B. so successful a flight C. such successful a flight D.a such successful flight6. We were scared to death when the fire _. Fortunately, it was put out before it caused much damage. Abroke out Bcame out Cgave out Dturned out7At the _ news, there was a _ expression on his face.A. puzzled; puzzling B. puzzling; puzzle C. puzzling; puzzled Dpuzzled; puzzle8.Do you think _ life on Mars?A.it exists Bthere exists Cit is existed Dthere is existed9. All possible means _. However, nothing can _ him dying of lung cancer.A. has tried; stop B. have tried; keep C.has been tried; prevent D.have been tried; stop10_， I lost heart in English learning, but my teacher often said to me, “Keep on working hard, and youll succeed_.” A. At a time; in time B. At a time; on time C.At one time; in time D.At one time; on time11.Water, which seems so simple and common, is _ makes life possible.Awhat Bthat Cwhich Dhow12_youve passed the final exam, you can prepare for the coming holiday.A.Now that B.As soon as C. Although D. If13.Some parts in South China have experienced _this year as they did last year.Atwice as much rain Brain twice as much Cas twice much rain Dtwice rain as much14. The top leaders of the two countries are holding talks in a friendly_. A. atmosphere B. state C. situation D. phenomenon15. It is by no means clear _ the president can do to end the strike. A. how B. which C. that D. what16. We promise _ attends the party a chance to have a photo taken with the movie star. A. who B. whom C. whoever D. whomever完成句子1. The puzzled look on his face suggested that _.他脸上迷惑的表情表明他在苦苦思索这个让人困惑的问题。2.His back injury may _.他背部的伤可能使他参加不了明天的比赛。3. This ruler is _/twice longer than