搜索
本课栏目开关重点单词短语与句式难句分析Antarcticseabirdsarebreeding(繁殖)later，becausethinnerseaiceiscausingtheirfoodsuppliestodecline，anewstudysays.Thebirds，whichnestinEastAntarctica，havedelayedtheirspringarrivalbyanaverageofninedaysandegglayingbyanaverageoftwodaysoverthepast50years，accordingtopolarresearchersfromtheHenriWeimerskirch.Theyattributethislaterbreedingactivitytodecreaseinseaicecausedbyclimatechang.本课栏目开关重点单词短语与句式难句分析Theresearcherssaythedisappearingseaice，combinedwithalongerseaiceseason，hasinterferedwiththebirds’breedingcyclebyreducingtheamountofkrill(磷虾)andotherprey(猎物)availableinearlyspringinAntarctica.BecauseAntarctica’sseasonsareoppositetothoseintheNorthernHemisphere，springontheicycontinentbeginsinOctober.Thestudyisbasedondatacollectedatseabirdcoloniesbetween1950and2004inAdélieLand，ontheeasternedgeofthefrozencontinent.ThefindingswerepublishedinthejournalProceedingsoftheNationalAcademyofSciences.本课栏目开关重点单词短语与句式难句分析Oftheninespeciesstudied，somearrivedupto30dayslaterthantheyhadinpreviousyears.Despitemuchlaterarrivals，thebirdsarelayingtheireggsatprettymuchthesametimeastheyhadinthepast.Inthemostextremecases，birdswerelayingtheireggsanaverageof3.7dayslaterintheseasonthantheywere50yearsago.本课栏目开关重点单词短语与句式难句分析根据上文完成下列各题1．WhyhavetheseabirdsinEastAntarcticadelayedtheirbreeding?A．Thefoodtherehasbeenpolluted.B．Theseaicedoesn’tshrinkanymore.C．Thefoodsuppliestherehavedeclined.D．Therearetoomanyseabirdsthere.答案C本课栏目开关重点单词短语与句式难句分析2．InwhichofthefollowingmonthsisitautumninAntarctica?A．October.B．September.C．November.D．June.3．Howmanykindsofseabirdswerestudiedbytheresearchers?A．Two.B．Five.C．Nine.D．Thirty.答案D答案C本课栏目开关重点单词短语与句式难句分析4．Whatisthepassagemainlyabout?5．Whatdoestheunderlinedword“continent”inParagraph3referto?SeabirdsarebreedinglaterinEastAntarctica.Antarctic.本课栏目开关重点单词短语与句式难句分析PeriodOne1．Antarcticaholds90%oftheworld’sice，andmostofitsfreshwater(70%)isinafrozenstate.南极洲拥有世界90%的冰，当然其大部分淡水(70%)都处于一种冰冻状态。[归纳拓展]staten．状态；状况inastateof...处于……状态inagood/badstate情况良好/糟糕stateofmind思想状况，心情PeriodOneWarmup&ReadingLanguageFocus本课栏目开关重点单词短语与句式难句分析PeriodOne[语境助记](1)Waterexistsinthreestates：liquid，gaseous，andsolid.水有三种状态：液态、气态和固态。(2)Ourmanagerisinastateofpoorhealth.我们经理的健康状况不佳。(3)Aconfusedstateofminddisturbedher.迷惑的心情困扰着她。本课栏目开关重点单词短语与句式难句分析PeriodOne[题组训练](1)Hewasinpermanentdepression.他一直处于消沉状态。(2)Theroadsareaftertheseverwinterweather.严冬过后，这些公路的路况极差。(3)Animportantfactorindetermininghowwellyouperforminanexaminationistheofyourmind.A．stateB．caseC．situationD．circumstanceastateofinaterriblestate解析句意为：决定你在考试中的表现的一个重要因素是你的精神状态。state状态，状况；case情况；situation形势；circumstance环境，情况。A本课栏目开关重点单词短语与句式难句分析PeriodOne2．ButmorethantwothousandyearsagoGreekgeographersbelievedthattherewasalargelandmassinthesouthwhichbalancedthelandinthenorth.但是2000多年以前，古希腊的地理学家就认为地球南边会存在一个大陆块与北边的陆地保持平衡。[归纳拓展]massn．块，堆，团amassof/massesof大量的，大批的themassof大部分inthemass总体上，大致上themasses群众，大批人群本课栏目开关重点单词短语与句式难句分析PeriodOne[语境助记](1)Thehillappearedasablackmassinthedistance.远远地看去，那座山是黑魆魆一片。(2)Shehasamassof/massesofthingstodo.她有一大堆的事情要做。(3)ThemassofpeopleareChristian.大多数人是基督徒。本课栏目开关重点单词短语与句式难句分析PeriodOne[题组训练](1)Childrenareprettymuchalike.总的来说，孩子们都是差不多的。(2)oftenthemakersofhistory.人民群众往往是历史的创造者。(3)Theyoungdancerslookedsocharmingintheirbeautifulclothesthatwetookpicturesofthem.A．manyofB．massesofC．thenumberofD．alargeamountofinthemassThemassesare解析句意为：年轻的舞蹈家们穿着美丽的衣服看起来很迷人，因此我们给她们拍了许多照片。massesof＝lotsof，后跟复数名词。A项应去掉of；thenumberof意为“……的数量”；D项后接不可数名词。B本课栏目开关重点单词短语与句式难句分析PeriodOne3．Inparticular，itaimstokeepAntarcticafreefromnucleartestsandradioactivewaste；topromoteinternationalscientificprojects；andtoendargumentsaboutwhoownstheland.该条约尤其致力于保护南极洲不受核试验以及放射性废物的污染，推进国际科研项目，并且终止那些关于这片土地所有权的争论。[归纳拓展]promotev．促进，增进promotesb.from...to...把某人从某职位提升至某职位bepromotedto...被提升为……promotionn．促进，发扬；提拔，晋升；推销本课栏目开关重点单词短语与句式难句分析PeriodOne[语境助记](1)Thegovernmenthasjustmadesomeplanstopromoteeconomicgrowth.政府刚刚出台了一些促进经济发展的计划。(2)Ourteacherhasbeenpromotedtoheadmaster.我们的老师已被提升为校长了。(3)Therearemanychancesofpromotioninthisfirm.这家公司里提升的机会很多。本课栏目开关重点单词短语与句式难句分析PeriodOne[题组训练](1)句型转换Everyyearlotsofuniversitygraduatesvolunteertoworkinruralareastomakethelifetherebetter.Everyyearlotsofuniversitygraduatesvolunteertoworkinruralareasto.(2)—Howaboutyouruncle?—Hehasbeentomanager.A．trappedB．balancedC．stockedD．promotedpromotethelifethere解析bepromotedto被提升为；trap诱捕，诱骗；balance平衡；stock储存，储备。D本课栏目开关重点单词短语与句式难句分析PeriodOne1．YetAntarcticaisfullofwildlife，whichhasadaptedtoitsextremeconditions.但南极洲仍然栖息着很多野生生物，它们已经适应了那里极其恶劣的条件。[归纳拓展]adapt(...)to...(使……)适应……adaptAfromB将B改编成Abeadaptedfrom...由……改编adapt...for...改编……作……之用本课栏目开关重点单词短语与句式难句分析PeriodOne[语境助记](1)Thenewstudentsareveryslowtoadapttotherules.新生对于那些规定适应得很慢。(2)Youshouldadaptyourselftothenewenvironment.你应该适应新环境。(3)Thisfilmisadaptedfromatruestory.这部电影改编于一个真实的故事。本课栏目开关重点单词短语与句式难句分析PeriodOneadapt，adjust，fit，suit，match它们都有“适合，适应”的意思，但adapt和adjust常会混用，fit，suit和match也常混用。(1)adapt指修改或改变以使某物或某人适应新条件或新环境，或者改写，改编(to)。(2)adjust指借正当的判断或熟练的技巧“调整，调节”以使两者互相适应，后接具体事物时则表示“调整、校正”。(3)fit指大小适合，引申为“吻合”。(4)suit多指合乎要求、品味、性格、时间、地位或情况等。(5)mat