专题08阅读理解词义猜测题冲关真题训练备战高考英语大题冲关秘笈原卷Word下载.docx
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★★★☆☆
5分钟
Whenaleafyplantisunderattack,itdoesn’tsitquietly.Backin1983,twoscientists,JackSchultzandIanBaldwin,reportedthatyoungmapletreesgettingbittenbyinsectssendoutaparticularsmellthatneighboringplantscanget.Thesechemicalscomefromtheinjuredpartsoftheplantandseemtobeanalarm.Whattheplantspumpthroughtheairisamixtureofchemicalsknownasvolatileorganiccompounds,VOCsforshort.
ScientistshavefoundthatallkindsofplantsgiveoutVOCswhenbeingattacked.It’saplant’swayofcryingout.Butisanyonelistening?
Apparently.Becausewecanwatchtheneighboursreact.
Someplantspumpoutsmellychemicalstokeepinsectsaway.Butothersdodoubleduty.Theypumpoutperfumesdesignedtoattractdifferentinsectswhoarenaturalenemiestotheattackers.Oncetheyarrive,thetablesareturned.Theattackerwhowaslunchingnowbecomeslunch.
Instudyafterstudy,itappearsthatthesechemicalconversationshelptheneighbors.Thedamageisusuallymoreseriousonthefirstplant,buttheneighbors,relativelyspeaking,staysaferbecausetheyheardthealarmandknewwhattodo.
Doesthismeanthatplantstalktoeachother?
Scientistsdon’tknow.Maybethefirstplantjustmadeacryofpainorwassendingamessagetoitsownbranches,andso,ineffect,wastalkingtoitself.Perhapstheneighborsjusthappenedto“overhear”thecry.Soinformationwasexchanged,butitwasn’tatrue,intentionalbackandforth.
Charles
Darwin,
over
150
years
ago,
imagined
a
world
far
busier,
noisier
and
more
intimate(亲密的)
than
the
we
can
see
hear.
Our
senses
are
weak.
There’s
whole
lot
going
on.
32.
What
does
plant
do
when
it
is
under
attack?
A.
It
makes
noises.
B.
gets
help
from
other
plants.
C.
stands
quietly
D.
sends
out
certain
chemicals.
33.
author
mean
by
“the
tables
turned”
in
paragraph
3?
The
attackers
get
attacked.
B.
insects
gather
table.
plants
ready
to
fight
back.
D.
perfumes
attract
natural
enemies.
34.Scientistsfindfromtheirstudiesthatplantscan.
A.predictnaturaldisasters
B.protectthemselvesagainstinsects
C.talktooneanotherintentionally
D.helptheirneighborswhennecessary
35.whatcanweinferfromthelastparagraph?
A.Theworldischangingfasterthanever.
B.Peoplehavestrongersensesthanbefore
C.Theworldismorecomplexthanitseems
D.PeopleinDarwin’stimewereimaginative.
Passage2(2017·
新课标卷III,C)
美国黄石公园重新引进灰狼
295
6分钟
Afteryearsofheateddebate,graywolveswerereintroducedtoYellowstoneNationalPark.FourteenwolveswerecaughtinCanadaandtransportedtothepark.Bylastyear,theYellowstonewolfpopulationhadgrowntomorethan170wolves.
GraywolvesoncewereseenhereandthereintheYellowstoneareaandmuchofthecontinentalUnitedStates,buttheyweregraduallydisplacedbyhumandevelopment.Bythe1920s,wolveshadpracticallydisappearedfromtheYellowstonearea.TheywentfarthernorthintothedeepforestsofCanada,wheretherewerefewerhumansaround.
Thedisappearanceofthewolveshadmanyunexpectedresults.Deerandelkpopulations—majorfoodsources(来源)forthewolf—grewrapidly.Theseanimalsconsumedlargeamountsofvegetation(植被),whichreducedplantdiversityinthepark.Intheabsenceofwolves,coyotepopulationsalsogrewquickly.Thecoyoteskilledalargepercentageofthepark’sredfoxes,andcompletelydroveawaythepark’sbeavers.
Asearlyas1966,biologistsaskedthegovernmenttoconsiderreintroducingwolvestoYellowstonePark.Theyhopedthatwolveswouldbeabletocontroltheelkandcoyoteproblems.Manyfarmersopposedtheplanbecausetheyfearedthatwolveswouldkilltheirfarmanimalsorpets.
Thegovernmentspentnearly30yearscomingupwithaplantoreintroducethewolvers.TheU.S.FishandWildlifeServicecarefullymonitorsandmanagesthewolfpacksinYellowstone.Today,thedebatecontinuesoverhowwellthegraywolfisfittinginatYellowstone.Elk,deer,andcoyotepopulationsaredown,whilebeaversandredfoxeshavemadeacomeback.TheYellowstonewolfprojecthasbeenavaluableexperimenttohelpbiologistsdecidewhethertoreintroducewolvestootherpartsofthecountryaswell.
28.Whatisthetextmainlyabout?
A.WildliferesearchintheUnitedStates.
B.PlantdiversityintheYellowstonearea.
C.Theconflictbetweenfarmersandgraywolves.
D.ThereintroductionofwolvestoYellowstonePark.
29.Whatdoestheunderlinedword"displaced"inparagraph2mean?
A.Tested.B.Separated.
C.Forcedout.D.Trackeddown.
30.Whatdidthedisappear