备战2021届高考英语名校全真模拟卷1月卷7（解析版）.docx

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1、备战2021年高考全真模拟卷·1月卷第七模拟(时间：120分钟满分：120分)选择题部分第一部分　阅读理解(共两节，满分50分)第一节(共15小题；每小题2.5分，满分37.5分)阅读下列短文，从每题所给的四个选项A、B、C和D中，选出最佳选项。A（2020·江苏启东中学高三月考）Nexttimeyourplanelands,listentothesoundofthetyreshittingtheground.Thereasonthetyresdon’texplodeisbecausetheya

2、remadeofnaturalrubber.Thetyresofcars,motorbikesandtrucksarealsooftenmadeofthesamestuff.Naturalrubbercomesfromtrees,Workerscutthetrunksofthetreesandcollectawhiteliquidcalledlatex.Inthenineteenthandearlytwentiethcenturies,hugenumbersofrubbertreeswerepl

3、antedincountriesincludingMalaysia,BurmaandBrazil.Morethanacenturyago,scientistsdiscoveredhowtomakeman-maderubber,butnaturalrubberismuchstrongerandcanlastmuchlonger.Nearlyhalftherubberwhichisproducedeachyearisnaturalrubberandthereisalwaysaneedformore.

4、Rubbertreesarenoteasytogrow.Theyareaffectedbychangesintemperature,tomuchornotenoughrain,highwindsanddisease.Sometreessurvivewhileothersdieandit’salldowntotheirgenes.TwoBritishorganizations,theTunAbdulRazakResearchCenter(TARRC)andTheGenomeAnalysisCent

5、er(TGAC),havebeenworkingtogethertolookatrubbertrees.ThisisthegenesfittogetherinverylongchainsofDNA．Thegenomeforaplantsuchasarubbertreeoranimalneedstogrow.Thegenomecontainsalltheinformationtheplantoranimalneedstogrow.Thegenomeforaplantsuchasarubbertre

6、eissmallerthanahumangenomebutitisstillverylong,whichiswhyithasbeensodifficulttofind.AsEwanMollisonofTARRCsays,theworkhasbeenlikeputtingapicturepuzzletogetherwhereallthepiecesshowblueseaandbluesky.Nowscientistscanusetherubbertreegenometoproducestronge

7、rtrees.Byunderstandingthegenome,theycanchangetheDNAinrubbertreesinusefulways.Theycanalsodoitmuchfasterthanbefore.Inthefuture,itwillbepossibletogrowtreeswhichsurviveclimatechangeanddisease.1．WhatcharacteristicsofnaturalrubbercanbeinferredfromParagraph

8、1?A．Inexpensive.B．FlexibleC．ConductiveD．Explosive.2．Whatmadenaturalrubbersodemandingeachyear?A．QuantitiesofrubbertreeswereplantedinSoutheastAsiaB．Rubbertreesarenoteasilyaffectedbytheclimatechange.C．Bynowscientistshaven’tdiscoveredhowtomakeman-maderub