届新高考英语一轮复习七选五专项训练2科教科普类.docx

届新高考英语一轮复习七选五专项训练2科教科普类.docx

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届新高考英语一轮复习七选五专项训练2科教科普类

2021届新高考英语一轮复习七选五专项训练

（2）

科教科普类

1.根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。

选项中有两项为多余选项。

   Wealldoit:

textingwhilewalkingorchattingonthephonewhilecookingdinner.Intoday’ssociety,doingjustmorethanonethingatatimeseemsverycommon.Butresearchshowsthatwehadbetterstopmultitasking.①____________

   It’sslowingyoudown. ②____________Infact,itwillprobablytakeyoulongertofinishtwoprojectswhenyou’rejumpingbackandforththanitwouldtofinisheachoneseparately.Thesameistrueevenofdriving:

driverstakelongertoreachtheirdestinationswhenchattingoncellphones.Inaword,switchingbetweentasksleadstoalossinproductivity.

    ③____________Thehumanbraincanhandletwocomplicatedtaskswithouttoomuchtrouble.Addathirdtask,however,anditcancauseyoutointroduceerrorswhateveryou'reworkingon,especiallyifoneormoreofyouractivitiesinvolvemuchcritical（批判性的）thinking.

   It’sstressingyouout.Researchersfoundemployeeswhoreceivedasteadystreamofofficeemailstayedina"highalert（戒备状态）"modewithhigherheartrates.It’snotonlythephysicalactofmultitaskingthatcausesstress. ④____________IfyoudopoorlyonanexambecauseyoustudywhilewatchingmatchesonTV,thatcancertainlybringalotofstress.

   Itcanbedangerous.Textingortalkingonacellphonewhiledrivingisasdangerousasdrivingdrunk. ⑤____________Peoplewhousemobiledeviceswhilewalkingarelesslikelytolookbeforesteppingintoacrosswalk.Andinonestudy,oneinfiveteenagerswhowenttotheemergencyroomafteracaraccidentadmittedtheywereusingasmartphoneatthetimeoftheaccident.

A. You’remakingmistakes.

B. It’stheconsequences,aswell.

C. Thenhowtoavoidmultitasking?

D. Whyshouldyoustopmultitaskingnow?

E. Multitaskingdoesharmtoyourcriticalthinking.

F. Notjustusingaphonewhiledrivingputsyouatrisk.

G. Contrarytopopularbelief,multitaskingdoesn'tsavetime.

2.根据短文内容,从短文后的选项中选出能填人空白处的最佳选项,选项中有两项为多余选项。

Whetheryou’dliketoloosentightmuscles,becomemoreflexible,orjustkeepyourselftomgettinginjuredwhenyouexerciseorplaysports,stretchingisimportant.Withjustafewminutesofgentlestretching,youcanreducethepainthatcomesfromtightmuscles,improveyourposture,andincreaseyourrangeofmotion.①_______Withallthesebenefits,whynotgivestretchingatry?

1.Hamstring（脚筋）（orBack-of-the-leg）Stretch

Thehamstringmusclerunsdownthebackofyourupperleg.Tightnessinthismusclecanleadtoseriousbackpain,soitsanimportantonetostretch.②_______Workingonelegatatime,ftyourlegandresttheheelonthewallwithyourlegslightlybent.Gentlystraightenyourleguntilyoufeelanicestretch.Pausethereandwait.Thenswitchlegs.

2.③_______

Tightshouldermusclescanleadtoneckandbackpainaswellasotherproblems.It’simportanttokeepthesemusclesflexible.Youcanraisestraightoverhead,thenbendtheelbowsothatyourrighthandfallsbehindyourhead.Usingyourlefthand,gentlypullyourrightelbowtowardthecenterlineofyourbody.Ideally,youwantyourrightforearmtobestraightupandtown.Besuretokeepyourheadandneckstraight,anddon'tletyourrightarmforcetheheaddownorforwardinanyway. ④_______.

3.NeckStretch

Thisisveryimportantfordrivers!

Stretchyourneckonesideatatime,beginningwiththeright.Tipyourheadtotheleft.⑤_______Donotpullhard.Theneckisfragile,soyoumustbegentlewiththisstretch.Repeatontheoppositeside.

A.ArmStretch.

B.ShoulderStretch

C.Switcharmsandrepeat.

D.Standaboutanarm’slengthawayfromatable.

E.Stretchingalsoimprovesyourbalanceandcoordination.

F.Foragentlestretch,lieonthefloornearadoorwayorwallcorner.

G.Anduseyourlefthandtoverygentlypullyourheadtowardthefrontofyourleftshoulder.

3.根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。

选项中有两项为多余选项。

Curling（冰壶）isawintersportplayedonice.Therefore,it’smostpopularinnortherncountrieslikeCanada.CurlingisplayedintheUSAbyabout15,000people.①________Scottishwinterswerelongandtherewereformsofentertainment.Sopeoplebeganmakingasportoutofslidingheavystonesonthefrozenlakes.Thegamespread,andinthe1700scurlingclubsformed.ThenScottishsoldiersbroughtittoNorthAmerica.

②________Men,women,andchildrenoftencompeteonthesameteam,iftheycanslideaforty-poundstonedowntheice!

Bothteamsslidetheirstonestowardthesamegoal.Afterall16stoneshavebeencast,theteamwhosestonehasslidclosesttothegoalgetsonepoint.

③________Theiceissosmoothandthestoneissoheavythateventhesmallestmisjudgmentinathrowcanmakethestoneslidemuchtoofarorstoptoosuddenly.④________Waterhelpsthestoneslide,butitcanalsochangethestone’spath.

Incurling,abroomispartofeachplayer’sequipment.Agoodcurlermustknowhowmuchforcetouse.Theplayermustknowtheexactconditionsoftheiceonthecourt.⑤________ThatmayexplainwhytheinternationalOlympicCommitteedecidedtomakecurlinganOlympicsportin1998.

A.Playerscompeteonthecourt.

B.Thentheplaybeginsintheotherdirection.

C.Curlingisplayedbyteamsoffourpeople.

D.Inotherwords,agoodcurlermustbeafineathlete.

E.Therulesareeasytolearn,butplayingthegameishard.

F.Themeltingoftheicemakesthingstoughforthecurlers.

G.CurlingprobablybeganinScotlandinthe1500sorearlier.

4.根据短文内容,从短文后的七个选项中选出正确的填入空白处。

选项中有两项为多余选项。

TheScienceofRisk-Seeking

  Sometimeswedecidethatalittleunnecessarydangerisworthitbecausewhenweweightheriskandthereward,theriskseemsworthtaking.①_____________Someofusenjoyactivitiesthatwouldsurpriseandscaretherestofus.Why?

Expertssayitmayhavetodowithhowourbrainswork.

  Thereasonwhyanyofustakeanyrisksatallmighthavetodowithearlyhumans.Risk-takerswerebetterathunting,fighting,orexploring.②_____________AsthequalityofRisk-takingwaspassedfromonrationtothenext,humansendedupwithasenseofadventureandatoleranceforrisk.

  Sowhyaren’twealljumpingoutofairplanesthen?

Well,even200,000yearsago,toomuchrisk-takingcouldgetoneKilled.Afewdaringsurvived,though,alongwithafewstay-in-the-cavetypes.Asaresult,humansdevelopedarangeofcharactertypesthatstillexiststoday.Somaybeyoulovecarracing,ormaybeyouhateit.③_____________

  Nomatterwhereyouareontherisk-seekingrange,scientistssaythatyourwillingnesstotakerisksincreasesduringyourteenageyears.④_____________;Tohelpyoudothat,yourbrainincreasesyourhungerfornewexperiences.Newexperiencesoftenmeantakingsomerisks,soyourbrainraisesyourtoleranceforriskaswell.Meantakingsomerisks,soyourbrainraisersyourtoleranceforriskaswell.

  ⑤_____________Fortherisk-seekersapartofthebrainrelatedtopleasurebecomesactive,whilefortherestofus,apartofthebrainrelatedtofearbecomesactive.

  Asexpertscontinuetostudythescienceofrisk-seeking,we’llcontinuetohitthemountains,thewavesortheshallowendofthepool.

A.Italldependsonyourcharacter.

B.Thosearetherisksyoushouldjumptotake.

C.Beingbetteratthosethingsmeantagreaterchanceofsurvival.

D.Thus,thesewell-equippedpeoplesurvivedbecausetheywerethefittest.

E.Thisiswhenyoustarttomoveawayfromyourfamilyandintothebiggerworld.

F.However,wearenotallusingthesamereferencestandardtoweighrisksandrewards.

G.Newbrainresearchsuggestsourbrainsworkdifferentlywhenwefaceanervoussituation.

5.根据短文内容,从短文后的七个选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.

    Malefrogsuseterritorialcallstowarnofffrogsthatareenteringtheirterritory. ①___________Sotheydonotwasteenergybymakingterritorialcallswhentheydetectthosefrogsneartheirterritory.However,ifanunknownfrogapproachesthelandtheyclaimastheirown,maleswillaggressivelyletoutaterritorialcall.②___________.

    Warningcallsareemployedtowarnotherfrogsofsomenearbydangerandarecommonlyheardwhenanattackercomesnear.③___________.Ifanattackerattacksafrog,thefrogwillmakeacallalmostlikeascream,whichisintendedtoscaretheattacker.Thisscreamisalmostalwaysmadewhentheattackersucceedsingraspingthefrogbecause,shoulditbegreatlysurprised,theattackermayreleasethefrog,whichmightpermittheanimaltomakeitsescape.

    ④___________,whichisemployedwhenanotherfrogiscaughtholdofbymistake.Thisregularlyhappensduringthematingseason,whenmalefrogseagerforamatewronglygraspanothermale.Inothercases,femalesthathavealreadymatedmaymakethiscallwhendifferentmalefrogscatchthem.​⑤___________.Wheneveramalecatchesafemaleofanotherspecies,thefemalegivesthereleasecalltoinformthemalethathehasmadeamistakeandshouldletgo.

A. Frogcallsfurtherdifferbetweenspecies

B. Thefinalmajorcallmadebyfrogsisthereleasecall

C. Tothehumanear,frogmatingcallsmayallsoundsimilar

D. Frogsmakeshort,sharp,loudsoundswhiletheyhurryaway

E. Malescanrecognizethecallstheirneighborsmakefromafar

F. Ifthestrangefrogdoesnotleaveimmediately,itmaybeattacked

G. Therearesomespecialoccasionswhenfrogsbelongingtodifferentspeciesmixwithoneanother

6.根据短文内容,从短文后的七个选项中选出能填入空白处的最佳选项。

选项中有两项为多余选项。

TheArtofSlowReading

Ifyouarereadingthisarticleinprint,chancesarethatyouwillonlygetthroughhalfofwhatIhavewritten.Andifyouarereadingthisonline,youmaynotevenfinishafifth.① __________Theysuggestthatmanyofusno