Unit2SailingtheoceansPeriod1WarmingUpPre

Unit2SailingtheoceansPeriod1WarmingUp，Pre­reading&Reading同步精练（人教版选修9，课标通用）时间：45分钟Ⅰ.介、副词填空1．Thevoyagesoftravellersbeforethe17thcenturyshowthattheywerenot________themercy________theseaeventhoughtheydidnothavemodernnavigationalaids.2．Onacleardayespeciallyduringthesummerthesailorscouldusethesunoverhead________middaytonavigateby.3．Thereisaspecialcloudformationwhichindicatesthereislandclose________.4．Anearlymethodofmeasuringspeedinvolvedthrowingaknottedropetied________alogoverthesideoftheship.5．Thenumberofknotsthatwerecounted________afixedperiodoftimegavethespeedoftheshipinnauticalmilesperhour.6．________thiswaytheshipcouldsetastraightcourseeveninthemiddleoftheocean.7．________，itwasawkwardtouseasoneofthepointsofreferencewasthemovingshipitself.8．Astheshiproseandplungedinthewaves,itwas________difficulttobeaccuratewithanyreading.9．Itworks________measuringtheanglebetweentwofixedobjectsoutsidetheshipusingtwomirrors.10．Thisgavetheseamenthelocaltimeandallowedthemtofindtheirlatitude________sea.答案1.at；of2.in3.by4.to5.during6.In7．However8.extremely9.by10.atⅡ.单词拼写1．Thiswasamorep________andsimplifiedversionoftheastrolabe.2．Soseamencouldfollowthebirdstolandeveniftheywereo________andintheopensea.3．Thisseemstohavebeenthefirstandmostusefulformofe________whichcarriedtheminimumamountofrisk.4．Canyouhelpmeu________thefiles?5．Itwasthefirsti________tomeasurethesun'sposition.6．Itwaseasiertohandlebecauseitwasmorep________.7．However,itwasawkwardtouseasoneofthepointsofr________wasthemovingshipitself.8．Onacleardayespeciallyduringthesummerthesailorscouldusethesuno________atmiddaytonavigateby.9．SotheVikingswouldobservethewindsbeforeandduringtheiro________orreturnjourneys.10．Seamenusedittohelpi________thepositionofastreamorriverwhentheywereclosetoland.答案1.precise2.offshore3.exploration4.update5.instrument6.portable7.reference8.overhead9．outward10.identifyⅢ.翻译与仿写1．Thevoyagesoftravellersbeforethe17thcenturyshowthattheywerenotatthemercyoftheseaeventhoughtheydidnothavemodernnavigationalaids.翻译：__________________________________________________________________仿写：他的生命掌握在国王手中。__________________________________________________________________2.Therewasnosecuremethodofmeasuringlongitudeuntilthe17thcenturywhentheBritishsolvedthistheoreticalproblem.翻译：__________________________________________________________________仿写：直到做完作业王林才回家。__________________________________________________________________3.Theycouldusetheheightofthesuntoworkouttheirlatitude.翻译：__________________________________________________________________仿写：这些数字我每次相加都有不同的结果。__________________________________________________________________4．Thisseemstohavebeenthefirstandmostusefulformofexplorationwhichcarriedtheminimumamountofrisk.翻译：__________________________________________________________________仿写：他好像已经知道这次考试结果了。__________________________________________________________________5．Seamenusedittohelpidentifythepositionofastreamorriverwhentheywereclosetoland.翻译：__________________________________________________________________仿写：志愿者们住得离北京大学很近。__________________________________________________________________答案1.17世纪以前的航海记录显示，即使没有现代航海技术的帮助，旅行者们也不是任凭海洋摆布的。Hislifehangsatthemercyoftheking.2．直到17世纪英国人解决了这个理论问题后，人们才有了测量经度的可靠方法。WangLindidn'tgohomeuntilhefinishedhishomework.3．他们利用太阳的高度计算出他们所处的纬度。Thesefiguresworkoutdifferentlyeach/everytimeIaddthem.4．这似乎已是最早的、最有用的探险方式，所冒的风险也是最小的。Heseemstohaveknowntherusultoftheexamination.5．当靠近陆地时，海员们利用它来确定小溪或河流的位置。ThevolunteersliveclosetoBeijingUniversity.Ⅳ.语篇填词1____navigatorscould____2____NorthStar,thesunand____3____tonavigate____4____.Seaweedcouldalsobe____5____toknowwhethertheywere____6____toland.Seabirdscouldbeused____7____showthewaytoland.Iffogwasseenseamenknewthattheywereneartheland.Windscan____8____thespeed,butitalsobe____9____.Seamenusedcertaintidesandcurrentsto____10____shipstotheirdestination.答案1.Skillful(Accomplished)2.use3.clouds4.by5．used6.close7.to8.accelerate9.dangerous10.carryⅤ.单项填空1．—Whydidn'tyoutellhimaboutthemeeting?—Herushedoutoftheroom________Icouldsayaword.A．beforeB．untilC．whenD．after解析考查连词before表示“……还没来得及……就……”的用法。句意：我还没来得及说一句话，他就冲出了房间。答案A2．—Howoftendoyou________thedictionarywhenyouaredoingreading?—Notveryoften.OnlywhenIfinditisnecessary.A．relatetoB．consulttoC．refertoD．lookup解析refertothedictionary查阅词典。relateto涉及，关系到；consultto不是固定用法；lookup查阅，应用作lookupawordinadictionary。答案C3.Hegotwell­preparedforthejobinterview,forhecouldn'trisk________thegoodopportunity.A．toloseB．losingC．TobelostD．beinglost解析句意：他为面试做好了准备，因为他不能冒失去这个好机会的风险。riskdoingsth冒险做某事。答案B4.Butsomeday,allourhardworkwill________；wewillattendtheuniversityofourchoiceandgoontohaveagreatcareer.A．turnoutB．payoffC．workoutD．goout解析句意：但总有一天，我们的努力会有回报；我们会上我们所选择的大学，而后成就一番大的事业。payoff带来好结果，成功，行得通；workout计算出；turnout结果是，被证明；goout熄灭。答案B5.Shehasagiftforcreatinganatmosphereforstudents________allowsthemtocommunicatefreelywitheachother.A．whichB．whereC．whatD．who解析句意：她具有给学生营造一种允许他们自由交流的氛围的天赋。考查定语从句。分析句子结构可知，定语从句“________allowsthemtocommunicatefreelywitheachother”修饰先行词atmosphere，将先行词代入从句后为：Theatmosphereallowsthemto