高三英语：Unit 2 crossing limits课件（旧人教版）2.ppt

unit2crossinglimits contents warmingup readingcomprehension languagestudy readingandwriting warmingup zhenghe thegreatestnavigatorinthemingdynastyinchina hesuccessfullysailedtoover39countriessuchasvietnam indonesia andiran hisvoyageswere80yearsearlierthancolumbus sdiscoveryofnewcontinentand100yearsbeforemagellan scircumnavigation captainjamescook theendenavourdepartedenglandin1768andaftervisitingtahitithefollowingyearjamescook 1728 1779 discoverednewzealandandclaimeditforgreatbritain sailingwest in1770hesightedtheeastcoastofaustralia fromherehesailednorthandonaugust22heclaimedthewholeofeasternaustraliaasabritishpossession theendeavourreturnedtoenglandin1771havingaddedsignificantlytobritain spotentialempireinthepacific christophercolumbus he 1451 1506 wasitalianexplorerwhosailedacrosstheatlanticoceanin1492 hopingtofindaroutetoindia inordertotradeforspices hemadeatotaloffourtripstothecaribbeanandsouthamericaduringtheyears1492 1504 abeljanszoontasman he 1603 wasadutchseafarerandexplorer borninlutjegast avillageintheprovinceofgroningen bestknownforhisvoyagesof1642and1644 intheserviceofthevoc dutcheastindiacompany hiswasthefirsteuropeanexpeditiontoreachtheislandsofvandiemen sland nowtasmania andnewzealand healsomappedsubstantialportionsofotherpartsofaustralia 4 hissecrettaskwastofindnewlandmassesinthesouth zhenghe columbus abeltasman jamescook matching 1 thefirsttomaptheindiancoast 2 thefirsttodiscoverthe newworld 3 sailedalongthecoastofaustraliaandmanyislandsinthepacificocean questions howmanycontinentsarethereintheworld whataretheirnames mapoftheworld speaking frommyunderstanding ifonditpossiblethat inmyopinion nobodyhastherightto forthesakeof ibelieve inrespectfor weshould everythinghastwosides buti bynomeansshouldwesacrificepeople slifeinthenameofscience first second third usefulexpressions ashomeworkyouaretosearchmoreinformationaboutexploringtheworldafterschool homework tostrive toseek tofindandnottoyield alfredtennyson britishpoet 要奋斗 要探索 要有所发现 而不要屈服 英国诗人丁尼生 havearest 返回 下一页 readingcomprehension whatdoyouknowaboutthesilkroad 海上丝绸之路 nowlet sgotoreadthetextreachingoutacrosstheocean butfirstweshallreaditaloudtothetape let spayattentiontothepronunciationandintonationofthenativereader reading 1 theeuropeanswerethefirstexplorerstotraveltoothercountries 2 accuratemapsofthecountriesaroundtheindianoceanweremadebeforethefifteenthcentury 3 intheyearsbetween1405and1433 zhenghesailedwestwardsonlyonvoyagesofexploration 4 zhengheinvitedafricancountriestosendambassadorstochina f f f t judgethefollowingsentencestrueorfalse readingandunderlining nowreadaboutthetextagainandunderlineallthecollocationsfoundinthetext task mainideaofeachparagraph paragraph1 tradeandcuriosityhaveoftenformedthefoundationformankind sgreatestendeavor paragraph2 silkfromchinafounditswayoverlandalongthesilkroadtoindia paragraph3 theswahilikingdomsandtheislandsofftheafricancoastdevelopedintotheworld stradingcenter paragraph4 thearabiccontactstotheafricancoastledtothenextmeetingbetweenblackpeopleandachinese mainideaofeachparagraph paragraph5 intheeleventhcentury theafricansmadeseveralvoyagestothecourtofthesongdynasty paragraph6 thecontactsbetweenchinaandafricahadledtotheawarenessofeachother sexistence paragraph7 underthecommandofzhenghe thefleetssetsailtodiscovertheeasterncoastofafrica paragraph8 zhengherenewedrelationswiththekingdomsoftheeastafricancoast paragraph9 after1433 theexplorationbyzhenghewasstopped listeningandunderlining nowlet slistentothetapeandthenunderlinealltheusefulphrasesorsentencepatternsinthetext task usefulexpressionsfromreachingoutacrosstheocean fromthefoundationfor agreatpuzzleinspire todosth searchfor searoutesto fromtheearliesttimesfindone swayoverlandinexchangefor trade alongthecoastsmeetwith hearabout returnto with overthenextfewyearsoffthecoastdevelopinto trade tosb meetbetwee