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2017年12月英语六级阅读练习:仔细阅读(三)思维导图

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查看详情2017年12月英语六级阅读练习:仔细阅读(三)思维导图

2017年12月英语六级阅读练习:仔细阅读(三)

树图思维导图提供 2017年12月英语六级阅读练习:仔细阅读(三) 在线思维导图免费制作,点击“编辑”按钮,可对 2017年12月英语六级阅读练习:仔细阅读(三)  进行在线思维导图编辑,本思维导图属于思维导图模板主题,文件编号是:780e92080380edbf41d471503b0d3893

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2017年12月英语六级阅读练习:仔细阅读(三)思维导图模板大纲

Manypeoplebelievetheglarefromsnowcausessnowblindnenss.Yet,darkglassesornot,theyfindthemselvessufferingfromheadachesandwateringeyes,andevensnowblindness,whenexposedtoseveralhoursof"snowlight".

TheUnitedStatesArmyhasnowdeterminedthatglarefromsnowdoesnotcausesnowblindnessintroopsinasnow-coveredcountry.Rather,aman'seyesfrequentlyfindnothingtofoucsoninabroadexpanseofbarrensnow-coveredterrain.Sohisgazecontinuallyshiftsandjumpsbackandforthovertheentirelandscapeinsearchoftsomethingtolookat.Findingnothing,hourafterhour,theeyesneversotpsearchingandtheeyeballsbecomesoreandtheeyemusclesache.Natureoffsetsthisirritationbyproducingmoreandfluidwhichcoverstheeyeball.Thefluidcoverstheeyeballinincreasingquantityuntilvisionblurs,thenisobsured,andtheresultistotal,eventhoughtemporary,snowblindness.

ExperimentsledtheArmytoasimplemethodofovercomingthisproblem.Scoutsaheadofamainbodyoftroopsaretrainedtoshakesnowfromevergreenbushes,creatingadottedlineastheycrosscompletelysnow-coveredlandscape,Eventhescoutsthemselvesthrowlightweight,darkcoloredobjectsaheadonwhichtheytoocanfocus.Themenfollowingcanthenseesomething.Theirgazeisarrested.Theireyesfocusonabushandhavingfoundsomethingtosee,stopscouringthesnow-blanketedlanscape.Byfocusingtheirattentionononeobjectatatime,themencancrossthesnowwithoutbecominghopelesslysnowblindorlost.Inthiswaytheproblemofcrossingasolidwhiteterrainisovercome.

1.Topreventheadaches,wateringeyesandblindnesscausedbytheglarefromsnow,darkglassesare_____.

a.indispensible

b.useful

c.ineffective

d.available

2.Whentheeyesaresoretearsareproducedto________.

a.clearthevision

b.remedysnowblindness

c.easetheirritation

d.loosenthemuscles

3.Snowblindnessmaybeavoidedby_______.

a.concentratingtothesolidwhiteterrain

b.searchingforsomethingtolookatinsnow-coveredterrain

c.providingtheeyeswithsomethingtofoucson

d.coveringtheeyeballswithfluid

4.Thescoutsshakesnowfromevergreenbushesinorderto_______.

a.bivethemenbehindsomethingtosee

b.beautifythelandscape

c.warmthemselvesinthecold

d.preventthemenbehindfromlosingtheirway

5.Asuitabletitleforthispassagewouldbe_______.

a.snowblindnessandhowtoovercomeit

b.natrue'scureforsnowblindness

c.soldiersinthesnow

CCCAA

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