内容正文:
教材主题语篇练·四川英语
九
年
级
九年级(全)Units7~8
Ⅰ.选择型阅读(2023丽水改编)
Seagrass,anunderwaterplantthatgrowsontheoceanfloor,isveryimportantforsealife.Italso
helpspreventglobalwarmingbystoringcarbon—aharmfulgas.However,scientistsdontknowexactly
howmuchseagrassisatthebotomoftheocean.Withthehelpoftigersharks,ateamofresearchershas
discoveredtheworldslargestmeadow(grassland)ontheseafloorneartheBahamas.
Seagrassmeadowsarehometomanydiferentkindsoffish,shelfish,andsoon.Largeseaanimals,
suchassharks,alsospendalotoftimetherelookingforfood.Seagrasscangrowinverydeepanddark
water,makingitdificulttofind.Butsharkscandivedeepintothewaterandgettotheareaspeople
cannotreach.
AfternoticingtigersharksswimmingthroughseagrassoftheBahamas,anAmericanscientistworked
withaseagrassexpert,tryingtomapthelocationsoftheplants.Theresearchersfitedseventigersharks
withcameras.Sincetigersharksswimingroups,theyplacedsatelitetrackingtag(卫星跟踪器)oneight
othersharkstofindoutexactlywheretheanimalsswam.Theycolectedhoursofvideosofthetigersharks
swimmingthroughseagrass.
TheresearchersfoundmoreseagrassgrowingneartheBahamasthantheyexpected—infact,they
believethatthereismoreseagrasstherethananywhereelseonEarth.Thenewfindingincreasedthetotal
numberofseagrassknowntoexistby41%.However,moreresearchisneededtodiscoverthetruesizeof
theseagrassmeadow.
Scientistsoftendependonfindingsfromdiversandboatstostudyabouttheunderwaterworld,but
thisteamfoundthatworkingwithanimalsimprovedtheirunderstanding.Theyarenowplacingcamerason
seaturtlestostudyseagrassintheRedSea.Hopefuly,moremysteriesaboutseagrasswilbesolved.
1.Whatarethescientistsstudyingaccordingtothepassage? C
A.Sharks. B.TheBahamas. C.Seagrass.
2.Whyisitdificulttofindseagrassunderwater? B
A.Becauseitmovesveryfast.
B.Becauseitgrowsinverydeepanddarkwaters.
C.Becauseitcanchangeitscolor.
3.Whichoftheblankscanbefiledwiththeunderlinedword“map”inParagraph3? C
A.Istherea ofChinaintheclassroom?
B.ItistheWestLakethatrealyputsHangzhouonthe .
C.Thepolicedecidedto wherethe