中山大学大学英语四下半年第3次英语作业Word文件下载.docx

中山大学大学英语四下半年第3次英语作业Word文件下载.docx

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∙问题2

得2分，满分2分

Thepassagemainlytellsusabouttheimportanceoftakingcareofplants.

对

∙问题3

Forestsarehomesfordifferentkindsofanimals.

∙问题4

Theneedformorewoodandmorelandhelptoprotectourforests.

错

∙问题5

We'

llhavemoreandgreaterforestsin20or30yearsinsomepeople'

sview.

∙问题6

Thewriterthinksitnecessarytoprotecttheforests.

∙问题7

Humanmemorycanbeverydifficulttounderstand.Wefinditslimitationseveryday,whenweforgetafriend’stelephonenumber,thenameofabusinesscontactorthetitleofafavoritebook.Peoplehavedevelopedavarietyofstrategiesforcombatingforgetfulness-messageswrittenonPost-itnotes,forexample,orelectronicaddressbookscarriedinhandhelddevices-butimportantinformationcontinuestoslipthroughthecracks.Recently,however,newsystemsmayallowpeopletorecordeverythingtheyseeandhear-andeventhingstheycannotsense-andtostoreallthesedatainapersonaldigitalarchivethatisbothsearchableandsecure.Digitalmemoriescandomorethansimplyassisttherecollectionofpastevents,conversationsandprojects.Portablesensorscantakereadingsofthingsthatarenotevenperceivedbyhumans,suchasoxygenlevelsinthebloodortheamountofcarbondioxideintheair.Computerscanthenscanthesedatatoidentifypatterns:

forinstance,theymightdeterminewhichenvironmentalconditionsworsenachild’sasthma.Sensorscanalsologthethreebillionorsoheartbeatsinaperson’slifetime,alongwithotherphysiologicalindicators,andwarnofapossibleheartattack.Thisinformationwouldallowdoctorstospotirregularitiesearly,providingwarningsbeforeanillnessbecomesserious.Yourphysicianwouldhaveaccesstoadetailed,ongoinghealthrecord,andyouwouldnolongerhavetorackyourbraintoanswerquestionssuchas“Whendidyoufirstfeelthisway?

”AMicrosoftresearchproject,calledMyLifeBits,hasprovidedsomeofthetoolsneededtocompilealifelongdigitalarchive.Theyhavefoundthatdigitalmemoriesallowonetovividlyreliveaneventwithsoundsandimages.Everywordonehaseverread,whetherinane-mail,anelectronicdocumentoronaWebsite,canbefoundagainwithjustafewkeystrokes.Computerscananalyzedigitalmemoriestohelpwithtimemanagement,pointingoutwhenyouarenotspendingenoughtimeonyourhighestpriorities.Perhapsmostimportant,digitalmemoriescanenableallpeopletotelltheirlifestoriestotheirlatergenerationinasystematicanddetailedfashionthatuntilnowhasbeenreservedsolelyfortherichandfamous.

∙问题8

Whatdoestheauthormeanbysaying“Humanmemorycanbeverydifficulttounderstand.（Papa.1）”?

Humansoftenfailtorecallsomefamiliarandimportantinformation.

∙问题9

Whichofthefollowingisclosestinmeaningto“slipthroughthecracks”（Papa.1）?

Tobeforgotten.

∙问题10

Digitalmemoriescanperformallthefollowingtasksexcept（）.

tellingpeoplehowtocureheartdisease

∙问题11

MyLifeBitscanbeusedto（）.

letaboyknowmoreabouthisfather’sadventuresinyouth

∙问题12

Whatisthepassagemainlyabout?

Howdigitalmemoriescanchangeourwayoflife.

∙问题13

Dietingtoloseweighthasbecomeverypopularinrecentyears.Peoplehavebecomemorehealthconsciousandtrytotakebettercareoftheirbodiesbyeatingmorenutritiously（有营养）andexercisingmoreregularlytoloseanyunnecessaryfatthattheymayhave.Notonlyarepeoplebeingmorecarefulaboutwhattheyeat,theyarealsoconcernedwithhowtheyeatandhowtheirmealsareprepared.Peoplearetakingmoretimeforeachmeal.Manyavoidtheso-called"

plastic"

fast-foodhamburgersandchoosetoeatasaladorasandwichofmorehealthfulingredients（成分）inaquietrestaurantwithamoreleisurelyatmosphere.Athome,theyalsotrytotakeenoughtimetoeatarelaxeddinnerwithoutphoneorTVinterruptions.Whiledietingmaybeviewedasbeneficial,ithasalsobecomeaseriousproblemforAmericans,particularlyforyoungwomen.Dietingforthemhasactuallybecomeapsychologicaladdiction（依赖）.Theyeatsolittlethattheycanloseasmuchasfiftypercentoftheirtotalbodyweight,andalthoughtheylooklikeskeletons,theystillinsistthattheyarefat.Thecurrentwaveofexercising,dietingandtheproblemsproducedhavecausedmanyorganizationstobegineducatingthepublic.Manyschools,hospitals,healthorganizations,newspapersandmagazines,forexample,areofferingclasses,printingbookletarticles,etc.toinformthepublicofthewaytoexerciseanddiet,ofthedangersofdietingtoorapidly,andoftheplacespeoplecangoformedicalhelpiftheyfindthemselvesontheroadto"

dietaddiction"

.

∙问题14

Thesedayspeoplearedietingmorebecausetheyhavebecomemorehealthconscious.

∙问题15

Theyaretakinglesstimeforeachmealnow.

∙问题16

"

Theylooklikeskeletons"

inthethirdparagraphmostprobablymeanstheyaretoothin."

∙问题17

Themainideaofthelastparagraphisaboutwhatkindofmediumscanbeusedtoeducatethepublic.

∙问题18

Accordingtothispassagetheatmosphereofeatinghassomethingtodowithhealth.

∙问题19

Whatmustyoudowhenyoureceiveapresentforyourbirthday?

Youhavetositdownandwriteathank-younote.Thewords"

Thankyou"

areveryimportant.Wehavetousethemonsomanyoccasions.Wesaythemwhensomeonegivesusadrink,helpsustopickupthings,handsusaletter,lendsusabookorgivesusagift.Anotherimportantwordis"

please"

.Manypeopleforgettouseit.Itisrudetoasksomeonetodosomethingwithoutsaying"

.Wehavetouseitwhenweaskforsomething,too.Itmaybeabookorapencil,morericeormoresauce,helporadvice.Itmaybeintheclassroom,athome,atthebus-stoporoverthecounter.Wehavetouse"

tomakeourrequestpleasant.Wehavetolearntosay"

sorry"

too.Whenwehavehurtsomeone'

sfeeling,wewillhavetogoupandsaywearesorry.Whenwehavetoldalieandfeelsorry,wewillhavetousethesameword.Whenwehaveforgottensomethingorbrokenapromise,wewillhavetoexplainwiththatword,too."

Sorry"

isahealingword.Wecanmakepeopleforgetwrongsbyusingitsincerely.Thesethreewordsaresimplebutimportant.Theyarepleasingwordstouseinanylanguage.

∙问题20

Whenwereceiveabirthdaypresent,wehaveto（）."

writeathank-younote

∙问题21

Whensomeonehelpsustodosomething,weshould（）."

thankhim

∙问题22

Wemaybeconsideredrudeifweaskotherstodosomethingbutwedon’tsay（）.

∙问题23

Wehavetousetheword"

whenwe（）."

askforsomeadvice

∙问题24

Thethreeimportantwords"

thanks"

"

and"

inanylanguageareall（）."

alloftheabove

∙问题25

Theword"

horsepower"

wasfirstusedtwohundredyearsago.JamesWatthadmadetheworld'

sfirstwidelyusedsteamengine.Hehadnowayoftellingpeopleexactlyhowpowerfulitwas,foratthattimetherewerenounitsformeasuringpower.Wattdecidedtofindouthowmuchworkonestronghorsecoulddoinoneminute.Hecalledthatunitonehorsepower.Withthisunithecouldmeasuretheworkhissteamenginecoulddo.Hediscoveredthatahorsecouldlifta3300-poundweight10feetintotheairononeminute.Hisenginecouldlifta33-pound