考研英語沖刺范文

考研英語沖刺范文

導讀：我根據(jù)大家的需要整理了一份關于《考研英語沖刺范文》的內(nèi)容，

具體內(nèi)容：我們從小學的時候起，似乎就已經(jīng)學會套用寫作模板來進行英

語寫作了，不一定限定在考研才那么做。下面是我給大家整理的，供大家

參閱?。篠leepSleetispartof...

我們從小學的時候起，似乎就已經(jīng)學會套用寫作模板來進行英語寫作

了，不一定限定在考研才那么做。下面是我給大家整理的，供大家參閱！

：Sleep

Sleetispartofapersonsdailyactivitycycle.Thereareseveral

differentstagesofsleep,andtheytoooccurincycles.Ifyouare

anaveragesleeper,yoursleepcycleisasfollows.Whenyoufist

driftoffintoslumber,youreyeswillrollaboutabit,you

temperaturewilldropslightly,yourmuscleswillrelax,andyour

breathingwellslowandbecomequiteregular.Yourbrainwavesslow

andbecomequiteregular.Yourbrainwavesslowdownabittoo,with

thealpharhythmofratherfastwaves1sleep.Forthenexthalf

hourorso,asyourelaxmoreandmore,youwilldriftdownthrough

stage2andstage3sleep.Theloweryourstageofsleep,slower

yourbrainwaveswillbe.Thenabout40to69minutesafteryoulose

consciousnessyouwillhavereachedthedeepestsleepofall.Your

brainwillshowthelargeslowwavesthatareknownasthedelta

rhythm.Thisisstage4sleep.

Youdonotremainatthisdeepfourthstageallnightlong,but

insteadabout80minutesafteryoufallintoslumber,yourbrain

activitylevelwillincreaseagainslightly.Thedeltarhythmwill

disappear,tobereplacedbytheactivitypatternofbrainwaves.

Youreyeswillbegintodartaroundunderyourclosedeyelidsas

ifyouwerelookingatsomethingoccurringinfrontofyou.This

periodofrapideyemovementlastsforsome8to15minutesandis

calledREMsleep.ItisduringREMsleepperiod,yourbodywillsoon

relaxagain,yourbreathingwillslipgentlybackfromstage1to

stage4sleep----onlytoriseonceagaintothesurfaceofnear

consciousnesssome80minuteslater.

：Bacteria

Bacteriaareextremelysmalllivingthings.Whilewemeasureour

ownsizesininchesorcentimeters,bacterialsizeismeasuredin

microns.Onemicronisathousandthofamillimeter:apinheadis

aboutamillimeteracross.Rod-shapedbacteriaareusuallyfromtwo

tofourmicronslong,whileroundedonesaregenerallyonemicron

indiameter.Thusifyouenlargedaroundedbacteriumathousand

times,itwouldbejustaboutthesizeofapinhead.Anadulthuman

magnifiedbythesameamountwouldbeoveramile(1.6kilometer)

tall.

Evenwithanordinarymicroscope,youmustlookcloselytosee

bacteria.Usingamagnificationof100times,onefindsthat

bacteriaarebarelyvisibleastinyrodsordots.Onecannotmake

outanythingoftheirstructure.Usingspecialstains,onecansee

thatsomebacteriahaveattachedtothemwavy-looking"hairs"called

flagella.Othershaveonlyoneflagellum.Theflagellarotate,

pushingthebacteriathroughthewater.Manybacterialackflagella

andcannotmoveaboutbytheirownpower,whileotherscanglide

alongoversurfacesbysomelittle-understoodmechanism.

Fromthebacteriapointofview,theworldisaverydifferent

placefromwhatitistohumans.Toabacteriumwaterisasthick

asmolassesistous.Bacteriaaresosmallthattheyareinfluenced

bythemovementsofthechemicalmoleculesaroundthem.Bacteria

underthemicroscope,eventhosewithnoflagella,oftenbounce

aboutinthewater.Thisisbecausetheycollidewiththewatery

moleculesandarepushedthiswayandthat.Moleculesmovesorapidly

thatwithinatenthofasecondthemoleculesaroundabacteriahave

allbeenreplacedbynewones;evenbacteriawithoutflagellaare

thusconstantlyexposedtoachangingenvironment.

：TwoAttitudesTowardPart-timeJobs

Somepeolpethinktherearemoreadvantagesforcollegesstudents

totakepart-timejobsthandisadvantages,othersdontthinkso.

Whatsyourviewonthis?Andtellwhy.

Aseriousproblemhasariseninrecentseveralyearsthatmore

andmorecollegestudentsabandonstudybecauseoftheirtaking

part-timejobs,soquiteafewpeopleareopposedtopart-timejobs.

However,takingpart-timejobshasatleastthreebenefitsfor

collegestudensinmyeyes.

First,studentscanpromotetheirstudythroughpart-timejobs.

Forinstance,Ifalawstudentfindsapart-timejobinalawfirm,

hispracticewillenablehimtobetterunderstandwhatheslearned

frombooks.Whatsmore,thepart-timejobcanofferhim

opportunitiestogobeyondwhathesbeentaughtinclass,andhell

learnsomethingthatdoesntexistinbooksbutinpractice.

Second,studentscanalsoaccumulateworkexperiencesthrough

part-timejobs,whichwillbenefittheirfuturejob-hunting.

Actually,part-timejobsactaswarm-upexercisesforstudentsto

takefull-timejobsaftertheygraduate,andhelpthempreparefor

theirfuturecareers.Inaddition,asfreshbloodinthesociety,

graduatedstudentsareoftenunfavoredinjob-huntingmarketsfor

lackofpracticalworkexperiences.Itseasiertofindjobsforthose

whohaveaccumulatedexperiencesinpart-timejobs.

Lastbutnottheleast,part-timejobscanpartlyrelievestudents

financialburden,especiallythosewhoarefrompoorfamilies.

Collegetutionfeeshavegreatlyincreasedinthepasttenyears

duetotheneweducationalpolicy.Manystudentsfrompoorfamilies

cannotaffordcollegefees,andourbanksystemfailtoloancollege

studentsaseffectivelyasitdoesindevelopedcountries,sotaking

part-timejobsbecomesawayforthemtomeettheirgreatexpenses

incampuslives.

Itsanundeniedfactthatstudentsbreakthebalancebetweentheir

jobsandstudies,especiallywhentheyfallintoconflictwitheach

other.ButIthinkstudentsshouldspendtheirsparetimetaking

part-timejobs.Onlyfollowingthisprinciplecantheybenefitfrom

theirpart-timejobs.

：CellsandTemperature

Cellscannotremainaliveoutsidecertainlimitsoftemperature

andmuchnarrowerlimitsmarktheboundariesofeffective

functioning.Enzymesystemsofmammalsandbirdsaremostefficient

onlywithinanarrowrangearound37C;adepartureofafewdegrees

fromthisvalueseriouslyimpairstheirfunctioning.Eventhough

cellscansurvivewiderfluctuationstheintegratedactionsof

bodilysystemsareimpaired.Otheranimalshaveawidertolerance

forchangesofbodilytemperature.

Forcenturiesithasbeenrecognizedthatmammalsandbirdsdiffer

fromotheranimalsinthewaytheyregulatebodytemperature.Ways

ofcharacterizingthedifferencehavebecomemoreaccurateand

meaningfulovertime,butpopularterminologystillreflectsthe

olddivisioninto"warm-blooded"and"cold-blooded"species;

warm-bloodedincludedmammalsandbirdswhereasallothercreatures

wereconsideredcold-blooded.Asmorespecieswerestudied,it

becameevidentthatthisclassificationwasinadequate.Afence

lizardoradesertiguana-eachcold-blooded---usuallyhasabody

temperatureonlyadegreeortwobelowthatofhumansandsoisnot

cold.Thereforethenextdistinctionwasmadebetweenanimalsthat

maintainaconstantbodytemperature,calledhomeOtherms,andthose

whosebodytemperaturevarieswiththeirenvironments,called

poikilotherms.Butthisclassificationalsoprovedinadequate,

becauseamongmammalstherearemanythatvarytheirbody,

temperaturesduringhibernation.Furthermore,manyinvertebrates

thatliveinthedepthsoftheoceanneverexperiencechangeinthe

depthsoftheoceanneverexperiencechangeinthechillofthedeep

water,andtheirbodytemperaturesremainconstant.

:一生的事業(yè)

Asfoodistothebody,soislearningtothemind.Ourbodies

growandmusclesdevelopwiththeintakeofadequatenutritiousfood.

Likewise,weshouldkeeplearningdaybydaytomaintainourkeen

mentalpowerandexpandourintellectualcapacity.Constant

learningsuppliesuswithinexhaustiblefuelfordrivingusto

sharpenourpowerofreasoning,analysis,andjudgment.Learning

incessantlyisthesurestwaytokeeppacewiththetimesinthe

informationage,andaninfalliblewarrantofsuccessintimesof

uncertainty.

Oncelearningstops,vegetationsetsin.Itisacommonfallacy

toregardschoolastheonlyworkshopfortheacquisitionof

knowledge.Onthecontrary,learningshouldbeanever-ending

process,fromthe