Beforeunderstandingthisquestion,weshouldfirsttakeaquicklookathowwe“see”colors.Takearedshirtasanexample.Whenit’shitbythelightfromthesun,ittakesindifferentwavelengths(波长)oflight,excepttheredlightwavelength.Theredlightwavelengthisreflectedtooureyes.Thatiswhytheshirtappearsredtous.
Nowlet’sreturntothewetshirt.Whenthelighthitsawetshirt,ithastopassthroughthewaterontheshirt.Thelightthatshouldbereflectedbytheshirtisre-absorbed(再吸收)bythewater.Thismeanslesslightwillbesenttooureyes.Asaresult,theshirtlooks“darker”．
Butremember,sometimesawetshirtcanseembrighterwhenviewedfromacertainangle(角度).Thesurfaceoftheshirtisusuallyrough.Addingwatertoitmakesitsmoother.Asmoothsurfacereflectslightinadifferentwayfromaroughsurface.Thus,youmayseeasmallandbrightreflectionofthelightfromacertainangle.Sobasically,awetshirtwillbedarkerthanadryone,butitcanalsoappearmore“shiny”attimes.
【推荐1】Youmaythinkyoucannotlivethroughsummerwithoutairconditioners.ButinancientChina,handfanswerealmosttheonlyhelpforpeopletodrivetheheataway.
Chinesepeoplestartedtousehandfansover2,000yearsago.Thefanscameindifferentshapes,suchasroundandsquare.Theywerealsomadefromallkindsofmaterials.Palmleaf(棕榈叶)fanswerecheapandeasytomake.Featherfansshowedtheowner’shighstatus(地位).Sandalwood(檀香)fanscouldsendoutsweetsmell.
Later,handfansbecamefarmorethanjustsomethingthatcouldcoolyoudown.Theydevelopedintoartworks,inwhichTuanshan(roundfans)andZheshan(foldedfans)werethemostcommon.
Intheshapeofafullmoon,Tuanshanwasusuallymadeofsilk.Theyhadbeautifulbirdsandflowersonthem.Women,especiallythoseintheimperialpalace(皇宫),likedtousethem.PoetsinancientChinaoftencomparedawoman’sabandonedfate(被抛弃的命运)totuanshan.NalanXingdewroteduringtheQingDynasty,“ifonlylifewereasbeautifulaswhenwefirstmet,whyshouldtheautumnwindbothertopitydesertedpaintedfans”
However,men,especiallytheliterati(文人),usedZheshanorfoldedfans.TheliteratilikedthembecauseZheshanwereusuallymadeofpaperandtheycouldpaintandwritepoemsonthem.Itwasawayforthemtoshowofftheirtalentsinliterature,paintingandcalligraphy(书法).AlmostanythingcanbepaintedonZheshan,butthemostpopularonesusuallyfeaturedlandscapes(以风景画为特色).
Today,Chinesepeoplestillusethesefans,onlynotmanywriteorpaintonthemanymore.Sothenexttimeyouuseafan,youmaythinkofthestoriesbehindit.
【推荐2】Peoplewanttoknowifpre-mademealsarehealthyenoughforteenagers.Thereareseveralkindsofpre-madefoods:ready-to-eatfood,suchascannedfoodorcookedfoodinpackages,andready-to-heatorready-to-cookfood.Thesefoodsusuallyrequireheatingorcookingfirstbeforebeingserved.
Manypeoplethinkthatpre-madefoodsarelesshealthybecausetheyusuallyneedtobekeptinfridges.“Infact,freezingitselfdoesnotcausenutrition(营养)loss,”LiuJunya,a33-year-oldprofessorindietinBeijingsaid.“Butnutritionlossdoeshappenwhenweheatorfrythefood.VitaminsBandCinmeatandvegetablescanbelostduringthatprocess.Bybeingheatedorcookedtwiceorpartypre-madefoodscanbelessnutritiousthanfreshlypreparedandcookedfoods,”Liusaid.
“Besides,manypre-madefoodcompaniesputthetasteoffoodaheadofnutrition,”saidLiu.Thisleadstohigherlevelofsaltandsugarinthefoodandpaycauseserioushealthproblemsinthelongterm.
Additives(添加剂)areanotherproblemrelatedtopre-madefoods.Theyareonlyusedtoimprovetheflavorofthefood,increaseitsshelflife,andcolorit.InChina,foodindustryhasalreadyhadmoderntechnologytokeeppre-madekidswithoutanyadditives.Butit’snecessarythatcustomersonlybuypre-madebooksfrombigandqualified(有资质的)foodcompaniesorsupermarkets.
Itishopedthatlawsonpre-mademealscanensurebetternutritionandhygiene(卫生).“Inthiswaywehopepre-mademealswillbeacceptedbymore.Butatpresent,noonecantell,”Liusaid.
Today,China’sinnovation(改革)anddevelopmentarechangingthewaypeoplelive.HereareafewthingstobringyouuptospeedonmodernChina.
1
PaymentandinformationcomeinasimplerforminChina-QRcodes(二维码).Theyhaveenteredalmosteverycornerofpeople’slives,fromaddingfriendsonWeChattoorderingfoodorpayingfordifferentservices.Thesecodesmakepeople’slifemoreconvenient.
2
Throughsomeapps,peoplecangetdifferentkindsofsharingservices.Therearebike-sharing,ride-sharing,umbrella-sharing,andbasketball-sharingservices.Localpeoplecanevensharetheirroomswithtourists.
3
China’srailwaynetworkconnectseverymaincity.Peoplecangetonatrainandarriveatdifferentcitieswithasimilarspeedtoflying.ThespeedofFuxinghigh-speedtrainscanreach350km/h.AndtheShanghaiMaglev(磁悬浮列车)canrunatatopspeedof430km/h.
4
Intheoldtimes,ancientChinesepeoplewentdownaroadtovisitothercountries.Theysoldsilk,teaandotherChinesethings.Ideasalsospreadalongtheroad.Now,ChinaisconnectingEasternEurope,NorthAfrica,theMiddleEast,andotherareaswiththeancientroadagain.
5
NowChinaisplayingaroleinworld’sspaceexploration(探索).ChinawasthefirstcountrytolandonthefarsideoftheMoon.Atpresent,XiheandZhurongarestillworkingtohelphumanslearnmoreabouttheSunandMars.What’smore,Chinahassentmorethanfifteenastronautsintospacetocarryoutdifferentspacetasks(任务)bynow.
【推荐1】SanyaisthesouthernmostcityandthemostbeautifulcityinHainanProvince.Itisknownas“abignaturalhothouse”,soitisoftencalled“theHawaiiofChina”or“Oriental(东方的)Hawaii”.
Ithasgreatbeachesandfreshair.Itsairqualityisthesecondbestallovertheworld.Itissaidtheaveragelifespan(平均寿命)inSanyais80yearsold.Itisaperfectplacetoescapethecoldinwinterandawonderfulplaceforswimming.Itiswet,hotandfullofsunlight.InJanuaryandFebruary,theaveragetemperatureis16℃to24℃,and25℃to29℃inJulyandAugust.TherainyseasonsarefromMaytoOctober.ThebesttimetovisitSanyaisbetweenNovemberandMarchofthenextyear.Visitorsmayenjoythebeautifulscenesandimprovetheirhealthconditionbystayinginsuchahealthyplace.
TherearemanyplacesyoucangoandseeinSanya:Dadonghai—oneofthemostpopularseasideplacesinHainanfordiving,beachsports,bathingandsunbathing;LuhuitouPeninsula(半岛)—aplacewhichgetsitsnameforonehillintheshapeofanenthralling(迷人的)deerlookingback;andTianyaHaijiao—aromanticandbeautifulplacewhichmeans“thefurthermostpartoftheskyandthesea”inChinese,suggestingaplacedifficulttogetto.TianyaHaiaoisthemostpopularplaceinHainansinceithascertainmeaningfortheloversinChina:goingtothatplacemeanstheywillloveeachotherforever.Besides,greengrassland,trees,freshairandthebeautifulandcomfortablebeachinYalongBaybringpeopleintoabeautifulworld.
Ifyouarereadingthisarticleinclass,youareprobablytryingtoreaditquickly.Youhavebeentaughttoskimandscan,tolookforkeywordssoastounderstandthemainideaandtheimportantpointsinthearticle.Skimmingandscanningisagoodwaywhenyourtimeislimited.Buttoday,manypeopleskimandscaneverythingandtheyhavelosttheabilitytoenjoyreading.
Nowsomethingcalledthe“slowreadingmovement(运动)”hasbecomepopular.Theideaisthatpeopleshouldshutofftheircomputersandmobilephonesforhalfanhourorforty-fiveminuteseachdayandenjoythepleasureofreadingagoodbookslowly!Inmanycitiesthereareevenslowreadingclubswheremembersgotoacafé,sitquietly,drinkcoffeeandjustread.
Researchershavefoundthatreadingslowly,helpspeoplefocus,relaxandthinkover.▲Youhavetositstillforalongtimefocusingononething.Alsoitmayseemboringwhencomparedtotheexcitementofplayingvideogames.Butforme,readinghasbeenthelastingpleasureinmylife.Fromtheageoften,whenIgotmyfirstlibrarycard,I’veenjoyedthecompanyofmanyinterestingpeopleIwouldhavenevermetinreallife.Readingprovidedmewithescape,butitalsohelpedmetounderstandtheworldaroundme.Itwasaneducationinaclassroomthathadnowalls.
Inyourclassroom,youhavelearnedtoread“fast”.Outsidetheclassroom,youshouldtrytolearntoread“slow”.Youmaybesurprisedathowmuchyouenjoyit.
【推荐3】Since2011,theShanghaiJingjuTheatreCompanyhasheldtwoseasonsof“YouthRunway”,along-termoperadevelopmentproject,hopingtofindyoungoperatalents.①128youngperformers（表演者）inthisprojecthavesuccessfullyputon207playsandclassicalpieces.
TheShanghaiYuejuOperaHouseisalsoofferingyoungartistschancestoperform.②TheButterflyLovers,oneofitsplays,isadapted（改编）fromasadlovestorybetweenLiangShanboandZhuYingtai.Anotherplay,TwelveRoles,largelygetsitsideafromanAmericanfilm12AngryMen.
YuejuOpera,whichdevelopedaround1906inShengzhou,ZhejiangProvince,isoneofChina’smostfamousoperas.Intheolddays,manypeopleloveditbecauseofitsstylesofsingingandmelodies（旋律）.Now,itisgettinganewlife.③Theperformingseasonforyoungperformersisheldinitsfifthyearandhasbecomeacharacteristicofitsown.
④Theytrymanywaystomaketraditionalartformsattractive（有吸引力的）totoday’syouth,includingthecreationofshortoperafilmsandtheuseofpopularmelodies.“WebelievethatXiqu（traditionalopera）canattracttoday’syoungpeoplebecauseitcanbemixedwithdifferentartforms,”saysChenDaming,atheatrecritic.
组卷网拥有组卷网、组卷商标，若您发现其他网站违规使用，欢迎您向我们举报