2019-2020年高考英语二轮复习 科普知识阅读理解（3）

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1、2019-2020年高考英语二轮复习科普知识阅读理解（3）科普知识（阅读理解）由(xx全国Ⅱ,B)改编Youmaythinkthatsailingisadifficultsport,butitisreallynothardtolearnit.Youdonotneedtobestrong.Butyouneedtobequick.Andyouneedtounderstandafewbasicrulesaboutthewind.First,youmustaskyourself,“Whereisthewindingfrom?Isitingfromaheadorbehi

2、ndorfromtheside?”Youmustthinkaboutthisallthetimeontheboat.Thewinddirectiontellsyouwhattodowiththesail.Let’sstartwiththewindblowingfrombehind.Thismeansthewindandtheboataregoinginthesamedirection.Thenyoumustalwayskeepthesailoutsidetheboat.Itshouldbeata90°angle(角度)totheboat.Thenitwillc

3、atchthewindbest.Ifthewindisblowingfromtheside,itisblowingacrosstheboat.Inthiscase,youmustkeepthesailhalfwayoutsidetheboat.Itshouldbeata45°angletotheboat.Itneedstobeoutfarenoughtocatchthewind,butitshouldn’tflap(摆动).Itshouldn’tlooklikeaflagonaflagpole.Ifitisflapping,itisprobablyouttoo

4、far,andtheboatwillslowdown.Sailingintothewindisnotpossible.Ifyoutry,thesailwillflapandtheboatwillstop.Youmaywanttogointhatdirection.Itispossible,butyoucan’tgoinastraightline.Youmustgofirstinonedirectionandtheninanother.Thisiscalledtacking.Whenyouaretacking,youmustalwayskeepthesailin

5、sidetheboat.1.Whatshouldyouconsiderfirstwhilesailing?(　　)A.Sailors’strength.B.Wavelevels.C.Winddirections.D.Sizeofsails.2.Whatdoestheword“It”underlinedinParagraph4referto?(　　)A.Theboat.B.Thewind.C.Thesail.D.Theangle.3.Whatdoyouhavetodowhensailingagainstthewind?(　　)A.Moveinastraightl

6、ine.B.Allowthesailtoflap.C.Lowerthesail.D.Tacktheboat.4.Wherecanyouprobablyfindthetext?(　　)A.Inapopularmagazine.B.Inatouristguidebook.C.Inaphysicstextbook.D.Inanofficialreport.　　语篇解读:本文为科普说明文。介绍了帆船运动与风向的关系。答案及剖析:1.C　事实细节题。根据第二段尤其是最后一句可知在做帆船运动时首先应该考虑“风向”。2.C　猜测词义题。从第四段“Inthiscase,you

7、mustkeepthesailhalfwayoutsidetheboat.”可知答案。3.D　事实细节题。根据最后一段中“...butyoucan’tgoinastraightline.”可知A项错误。根据第四段可知C项错误。根据末段“Ifyoutry,thesailwillflap...”可知B项错误。4.A　推理判断题。本文主要介绍的是帆船运动与风向的关系,由此可推知本文应出自杂志,而不是出自旅游指南、物理教科书,更不可能出自官方报告。【疑难词汇解读】1.flap(away/off)v.拍打;拍击Iflappedthefliesawaybutsoonthe

8、yflewback.我把苍蝇赶走,但一