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1、Unit 4,World News: Up in Space,1,Unit4-Step-by-step-3000第三册,Part I Warming Up,A: Training Focus: Selecting Information,2,Unit4-Step-by-step-3000第三册,1. orbit: a path followed by a planet, star, moon, etc round another body 2. lift-off n. the beginning of a rockets flight into space, when it leaves th
2、e ground. （火箭等）离地升空，垂直发射 3. ISS: the International Space Station:国际空间站,3,Unit4-Step-by-step-3000第三册,4.triumph:great achievement or success 5. reconnaissance:exploration or a survey of an area, esp for military purposes （对某地区的）侦察或观测（尤指为军事目的） 6.Orbiter:a spacecraft or satellite designed to orbit a pla
3、net or other body without landing on it (在行星的轨道上飞行而不在其上面着陆的)航天器或卫星 Mars Reconnaissance Orbiter: 火星勘探轨道飞行器 7. abbreviated: made shorter 8.en route: on a route to some place 9. truss: to tie up or bind tightly.,4,Unit4-Step-by-step-3000第三册,10.revive: to come or bring something back to life, health, ex
4、istence, or use My plants revived as soon as I gave them some water. A hot shower and a cup of tea will revive you. 11. space probe 航空探测器;太空探测器 12. Cape Canaveral: 航 卡纳维拉尔角（位于美国）,5,Unit4-Step-by-step-3000第三册,Key to A,1. To Mars / March of next year. 2. Because of a mechanical problem. 3. 5 males and
5、 2 females. 4. NASA / At the end of September, 83 days after landing. 5. To return home at the Kennedy Space Center after completing repairs on the Hubble Telescope.,6,Unit4-Step-by-step-3000第三册,1.AnAmericanspacecraftistravelingtoMarsto collectinformationabouttheredplanet.TheMarsReconnaissanceOrbite
6、rleftCapeCanaveralin FloridaonAugust12th.Thespacevehicleis expectedtoarriveinMarchofnextyear.Itisto orbittheplanetforatleastfouryears.,7,Unit4-Step-by-step-3000第三册,2.TheU.S.spaceshuttleColumbiahasreturnedtoEarthafteranabbreviatedstayinspace becauseofamechanicalproblem.TheSpace Agencyorderedtheshuttl
7、ebacktoEarthafter oneofthethreepowergeneratorsfailedSunday.Thegeneratorscalled“fuelcells”provideall ofshuttleselectricalpower,andNASAsafety rulesrequirethespaceshiptoreturntoEarthif anyfuelcellfails.,8,Unit4-Step-by-step-3000第三册,3.USspaceshuttleDiscoveryhasmadeasuccessfullift-offfromKennedySpaceCent
8、erinFlorida, enroutetotheInternationalSpaceStation. Theshuttlewith5maleand2femaleastronautsonboardwilltakeanothersectionofthehalf-builtInternationalSpaceStationalittletruss,or frameintoorbits.Itsscheduledtocomebackto earthonDecember21.,9,Unit4-Step-by-step-3000第三册,4.TheUnitedStatesSpaceAgencyNASAsay
9、s itsgivenupanyrealhopeofrevivingitsspace probeonMars.ThespacecraftPathfindermadeitslasttransmissionofscientificdatafromthe surfaceofMarsattheendofSeptember,83 daysafterlanding.,10,Unit4-Step-by-step-3000第三册,5.TheU.S.spaceshuttleEndeavorispreparing toreturnhomeintriumphaftercompletingrepairsontheHub
10、bleTelescope.TheEndeavors scheduledtolandMondayattheKennedySpaceCenteronFloridasAtlanticcoast,returningto thesitewherethemissionbeganelevendaysago.,11,Unit4-Step-by-step-3000第三册,B. Mir- Russias space glory,1. collision:an accident resulting from violent impact of a moving object. 2. microbe: a very
11、small, living thing, which you can only see if you use a microscope. 微生物 3.cosmonaut: a person trained to travel in a spacecraft 4.Gliese 581 c: 是一颗位于天秤座星以北约2度的红矮星,是世界上发现的第一颗可能适合人类居住的类地行星。 5. Neptuen: the eighth and farthest known planet from the Sun in the Solar System.,12,Unit4-Step-by-step-3000第三
12、册,15 years the Soviet Union, now Russia $ 4.2 billion (for building and maintaining) 10 years (1986 1996) 135 tons 9,900 cubic feet 63 feet wide and 85 feet long 104 cosmonauts, astronauts 46 438 days 747 days, three Mar. 23rd,13,Unit4-Step-by-step-3000第三册,Part II. News Reports,A. 1.extrasolar:any o
13、bject that exists outside the Solar System. 2. telltale: disclosing unintentionally Only occasionally did the telltale redness around his eyes betray the fatigue he was suffering. 3. wobble:move unsteadily 4. tug: a quick and usually strong pull. 猛拉; 拽 5. dwarf: much smaller than the usual size dwar
14、f planet 6.proximal:situated nearest to point of attachment or origin distal,14,Unit4-Step-by-step-3000第三册,Summary : the smallest and most earth-like extra solar planet. Answers to questions: 1.About a dozen. 2.Five times the mass of the earth. 3.A red dwarf. 4.Two. 5. One is similar to Neptune and
15、the other is 8 times the mass of the earth.,15,Unit4-Step-by-step-3000第三册,B.NASAs program of Mars,Training Focus: Summarize the news. Vocabulary rover: a wanderer漫游者 Robotic rovers act as robot geologists while they are on the surface of Mars.,16,Unit4-Step-by-step-3000第三册,Robotic arm: Much like a h
16、uman arm, the robotic arm has flexibility through three joints: the rovers shoulder, elbow and wrist. The arm enables a tool belt of scientists instruments to extend, bend, and angle precisely against a rock to work as a human geologist would: grinding away layers, taking microscopic images, and analyzing the elemental composition of the rocks and soil.,17,Unit4-Step-by-step-3000第三册,installment: one part of a serial story (分期连载的)部分;(分期出版的)分册 a magazine serial in six installments 在杂志上分六期连载的小说 Her
