Unit 1 大學英語基礎教程2課件

Unit1大學英語基礎教程2課件1.talkaboutsomeanimalsandtherelationshipbetweenenvironmentandcreatures;2.useabout30newwordsand8newphrasesandexpressionsinbriefconversationsandtranslation;3.reviewgrammarontheattributiveclause:1)theattributiveclausewithrelativepronoun;2)relativepronounwithpreposition;4.readmaterialonasimilartopicandwithasimilardegreeofdifficulty.ObjectivesWORDSLEARNEDINDISPLAYWritethemeaningofeachofthefollowingwordsorphrasesinthecorrespondentblank.YoucanwriteeitherinEnglishorinChinese.evidenceexperienceallowconstantlycreatesurvivedominantdisappearancedestroypollutionPartOneEXPRESSIONSINCONTEXTStudythefollowingexpressionsandseehowtheyareusedinsentences.attractone’sattention吸引某人的注意力Thedeathofdinosaursattractedsomescientists’attention.agreeon同意，達成一致Now,scientistsseemtoagreeonthereasonforthedisappearanceofthedinosaurs.atleast至少Ifwefailinthistask,wecanatleastgetsomeexperience.blockout遮擋Blackcloudsblockedoutthesunlight.dependon依賴，依靠Dinosaurshadtodependonconstantlyeatingfoodtolive.aswellas和，既……也Whentheasteroidhittheearth,itcausedacidrainaswellasearthquakes.alongwith連同,和……一道

Alongwiththeendofthedinosaurs,manylargeranimalsalsodied.leadto導致Theendofdinosaursledtotheappearanceofhumanbeings.TextAPREVIEWQUESTIONSWorkinpairsorgroupsanddiscussthefollowingquestions.1.Doyouloveanimalsandwhatisyourfavoriteone?2.HaveyouheardoftheChinesedragonandwhatisthedifferencebetweenadragonandadinosaur?3.Whatcanyouimaginewhendinosaurswerefacedwithnaturaldifficulties?PartTwoReadthefollowingsentencesandtelliftheyaretrueorfalseaccordingtothetext.Inthebracketsleadingeachstatement,put“T”fortrueor“F”forfalse.1.()Therearefourtheoriesforthedisappearanceofdinosaursmentionedinthefirsttwoparagraphs.2.()Thedinosaursdiedoutbecauseofadiseasecausedbytheasteroid.3.()Accordingtothetext,alllifewasdestroyedbytheasteroid.4.()Fromthetextwecanguessthat“devastating”meanscausingdestructionordeath.UnderstandtheSpecifics5.()Thereweremanyeffectscausedbytheasteroidthathittheearth,includingearthquakes,acidrain,darknessandflooding.6.()Thefactthatathinlayerofiridiumcanbefoundoverthewholesurfaceoftheearthsuggeststhatourplanetwashitbyanasteroid,becauseiridiumisrareonearthandcommonlyfoundinasteroids.7.()Mankindisluckyenoughbecausewedidnotstayatthesametimeasthedinosaurs.8.()Usingtheinformationfromthetext,wecaninferthatifasimilarasteroidhittheearthnow,dogsandhorseswouldbeabletosurvive.1.T 2.F 3.F 4.T 5.F 6.T 7.T 8.FKeytoUnderstandtheSpecificsAFromChinesetoEnglish1.恐龍消失的原因引起了許多科學家的注意。2.他似乎同意我的建議。3.天氣如此炎熱以致我們不得不停課。4.你肯定那個戴眼鏡的學生借了你的書嗎？5.考試結(jié)束后，你至少應該檢查一下試卷。6.這家的生活都依賴父親的收入。7.小行星碰撞地球后，有些小型的哺乳動物活了下來。8.未滿18歲的青少年不允許進入網(wǎng)吧。TranslationBFromEnglishtoChinese1.Withtheforceof100,000hydrogenbombs,theasteroidcausedadeadlywinterthatkilledallthedinosaurs.2.ScientistsataBritishuniversitysaytherewouldhavebeenenoughdustcausedbythemete-orhittingearthtocauseatleastthreemonthsofcompletedarkness.3.Nowscientistsaresurethattheasteroidwassobigthatitwouldhavestoppedallsunlightreachingtheearthandcreatedstormsofacidrainaswellasearthquakeswhichwouldhavebeenonethousandtimesstrongerthanthebiggestearthquakeswehaveexperiencedinthepast100years!4.Mostwerenobiggerthanaratandcouldhibernateduringtheworstdaysofthedisaster,justasmanysmallermammalssuchassquirrelsstilldonowadays.5.Itisonlysincethedisappearanceofthedinosaursthatlargermammalshaveappearedonearth,leadingeventuallytotheappearanceofthemostdominantofallmammals—man!1.Thereasonofdinosaurs’disappearanceattractsmanyscientists’attention.2.Heseemstoagreeonmysuggestion.3.Theweatherwassohotthatwehadtostopourclass.4.Areyousurethatthestudentwhowearsapairofglassesborrowedyourbook?5.Aftertheexam,youshouldatleastcheckthetestpaper.6.Thelifeofthisfamilydependsonthefather’sincome.7.Aftertheasteroidhittheearth,somesmallmammalssurvived.8.Teenagersunder18yearsoldarenotallowedtoenterthenetbar.KeyB1.這顆小行星的撞擊產(chǎn)生了相當于十萬顆氫彈的沖擊力，造成了毀滅恐龍的嚴寒冬天。2.英國一所大學的科學家們認為,流星碰撞地球引起的灰塵可能造成了地球上至少三個月暗無天日。3.如今，科學家們確信小行星非常巨大，它有可能阻擋了射向地球的太陽光，并引起了酸雨性的暴風雨和地震；這些地震跟我們在過去100年里經(jīng)歷的最厲害的地震相比還要強烈1000倍。4.許多還沒有老鼠那么大；正如今天許多像松鼠這樣的小哺乳動物可以冬眠一樣，它們能在災難中最惡劣的天氣里冬眠。5.正是由于恐龍從地球上消失的緣故，大型哺乳動物才出現(xiàn)在地球上，從而最終導致哺乳動物中最具統(tǒng)治地位的人類的出現(xiàn)。READINGCOMPREHENSIONReadthefollowingstatementscarefully,anddecidewhethertheyaretrue(T)orfalse(F)accordingtothetext.1.SincetheSecondWorldWar,dancinghasbeguntoexpressthefeelingsofordinaryyoungpeople.2.ElvisPresleywasthefirstofthe“pop”superstars.3.Rock’n’rollgenerationcameintobeinginthe1880s.4.Therock’n’rollsingersandtheirlyricswereovertlysexy;thepeoplewhodancedtotheirmusichadverymuchphysicalcontactwitheachother.TextB5.Rock’n’rollwasasloudastheblackdancerhythms.

6.Themusichadbecomesoloudandaggressivethatitseemedtoworklikeadrugonthedancersinthe1960s.7.Discowasoneofa“safe”formofentertainment.8.JohnTravoltawaspoor.1.T2.T3.F4.F5.F6.T7.T8.FKEYTOREADINGCOMPREHENSIONTextA恐龍的消亡是什么造成了恐龍從地球上的消亡？這個問題總是引起人們的關注?？铸埖臏缃^是食物短缺引起的嗎？它們是不是毀于致命的疾病呢？是不是天氣的變化造成了它們的消失呢？現(xiàn)在，科學家似乎對恐龍消失的原因達成了一致看法。很可能在六億五千萬年前，有一顆在太空中飛行的小行星撞擊了地球。這顆小行星的沖擊力相當于十萬顆氫彈，造成了毀滅恐龍的嚴寒冬天。似乎可以推斷這顆小行星的體積如此巨大，撞擊地球的威力如此強烈，以至于給地球造成了一個至少寬兩百公里的大坑。由于這個坑非常大，又造成了數(shù)月以來遮天蔽日的塵埃。結(jié)果引起了地球上天氣的巨變和海洋污染。據(jù)認為，這種變化使得地球上四分之三的生物毀滅了。英國一所大學的科學家們認為，流星碰撞地球引起的灰塵可能造成了地球上至少三個月暗無天日。REFERENCEVERSIONOFTEXTS這次事件對恐龍這樣的大型動物來說是毀滅性的打擊。由于恐龍體積巨大，它們得通過不斷地補充食物來維持生命。而小型動物則可以通過冬眠，等自然條件改善后再蘇醒過來。因此，它們有更為有利的生存機會。小行星碰撞地球引起恐龍滅絕的觀點只是在20世紀80年代的時候才非常流行。那時，科學家們發(fā)現(xiàn)有一層薄薄的銥覆蓋在地球表面。銥是一種在地球上非常稀有而在小行星上很常見的元素。幾年后，關于巨坑的證據(jù)在墨西哥發(fā)現(xiàn)了。如今，科學家們確信小行星非常巨大，以至于它有可能阻擋了射向地球的太陽光，并引起了酸雨性的暴風雨和地震;這些地震比我們在過去100年里經(jīng)歷的最厲害的地震還要強烈1000倍。伴隨著這