topic 12 科普知识与现代技术

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1、TopicTwelvePopularScienceandModernTechnology科普知识与现代技术话说中考此类话题涉及科普知识和最尖端的现代化技术，是中考中难度最大的一部分，专业术语较多，词汇量大，多以说明文呈现在试卷中。这就要求学生在平时多了解科普知识，关注尖端技术，热爱现代化，培养爱国主义精神。解题思路：整体把握文章大意，关注出题趋势，熟悉解题方法。走进中考(兰州·2010)Therehavebeenmanygreatinventionsorthingsthatchangedthewaywelive．Thefirstgreatinventionwastheonethatiss

2、tillveryimportanttoday—thewheel．Thismadeiteasiertocarryheavythingsandtotravellongdistance．Forhundredsofyearsafterthattherewerefewinventionsthatasmucheffectasthewheel．Thenintheearly1800stheworldstartedtochange．Therewaslittleunknownlandleftintheworld．Peopledidn'thavetoexploremuchanymore．Theybeganto

3、workinsteadtomakelifebetter．Inthesecondhalfofthe19thcenturymanygreatinventionsweremade．Amongthemwerethecamera，thelightandtheradio．Theseallplayabigpartinourdailylifetoday．Thefirstpartofthe20thcenturysawmoregreatinventions．Thehelicopterin1909，movieswithsoundin1926，thecomputerin1928，jetplanesin1930．

4、Thiswasalsoatimewhenanewmaterialwasfirstmade．Nyloncameoutin1935．Itchangedthekindofclothespeoplewore．Themiddlepartofthe20thcenturybroughtnewwaystohelppeoplegetoverdiseases．Theyworkedverywell．Theymadepeoplehealthierandallowedthemtolivelonger．Bythe1960smostpeoplecouldexpecttolivetobeatleast60．Bythis

5、timemostpeopleindevelopedcountrieshadaverygoodlife．Ofcoursenewinventionscontinuedtobemade．Butmannowhadadesire(渴望)toexploreagain．Theearthwasknowntomanbutthestarswerenot．Manbeganlookingforwaystogointospace．Russiamadethefirststep．ThenUnitedStatestookastep．Sincethenothercountries，includingChinaandJap

6、an，havemadetheirownstepsintospace．In1969mantookhisbiggeststepawayfromtheearth．Americansfirstwalkedonthemoon．Thisiscertainlyjustabeginning，though．Newinventionswillsomedayallowustodothingswehaveneveryetdreamedof．阅读短文，根据短文内容选择最佳答案。()1．Thispassagetalksmainlyabout_______．A．whycarswereveryimportantB．wh

7、enlightwasinventedC．howinventionsaffectpeople'sdailylifeD．whichcountrymadethefirststepintospace()2．Accordingtothepassagemandidn'thaveadesiretoexplorealot_______．A．atthebeginningof1800sB．inthe1960sC．sincethe1900sconstru