萝卜贮藏久了要空心,这是因为何种作用分解了有机物()
A、呼吸作用A
暂无解析
Afriendofminewasfondofdrawinghorse.Hedrewthehorsesverywell,buthealwaysbeganthetail.NowitistheWesternruletobeginattheheadofthehorse,thatiswhyIwassurprised.Itstruckmethatitcouldnotreallymakeanydifferencewhethertheartistbeginsattheheadorthetailorthebelly(肚子)orthefootofthehorse,ifhereallyknowshisbusiness.Andmostgreatartistswhoreallyknowtheirbusinessdonotfollowotherpeople’srule.Theymaketheirownrules.Everyoneofthemdoeshisworkinawaypeculiar(奇特的)tohimself;andthepeculiaritymeansonlythathefindsitmoreeasytoworkinthatway.
Nowtheverysamethingistruetoliterature(文学).Andthequestion,"HowshallIbegin?"onlymeansthatyouwanttobeginattheheadinsteadofbeginningatthetailorsomewhereelse.Thatis,youarenotyetexperienced(有经验的)enoughtotrusttoyourownpowers.Whenyoubecomemoreexperiencedyouwill
neveraskthequestion,andIthinkthatyouwilloftenbeginatthetail--thatistosay,youwillwritetheendofthestorybeforeyouhaveeventhoughtofthebeginning.
1.Afriendofthewriter’sdrewthehorses____.
A.verywell
B.inthewayofwesternrule
C.inthewayofhisownrule
D.alloftheabove
2.Thewriterwassurprisedbecause____.
A.theartistbegantodrawattheheadofthehorse
B.theartistbegantodrawatthetailofthehorse
C.theartistmadehisownrule
D.theartistdidnotfollowotherpeople’srule
3.Youarenotyetexperiencedbecause____.
A.youdon’tknowwheretobegin
B.youwanttobeginattheheadinsteadofbeginningatthetail
C.youalwaysaskedquestion
D.youdonottrusttoyourownpowers
4.Whenyoubecomemoreexperiencedyouwill____.
A.neveraskquestion
B.oftenbeginatthetail
C.shouldwritetheendofthestory
D.shouldthinkofthebeginning
5.Thetopicofthepassageis______.
A.Howtodrawahorse
B.Howtowriteastory
C.Howtomakeyourownrules
D.Trusttoyourownpowers
Intheearlieststagesofman'sdevelopmenthehadnomoreneedofmoneythananimalshave.Hewascontentwithverysimpleformsofshelter,madehisownroughtoolsandweaponsandcouldprovidefoodandclothingforhimselfandhisfamilyfromnaturalmaterialsaroundhim.Ashebecamemorecivilized,however,hebegantowantbettershelter,moreefficienttoolsandweapons,andmorecomfortableandmorelastingclothingthancouldbeprovidedbyhisownneighborhoodorbytheworkofhisownunskilledhands.Forthesethingshehadtoturntotheskilledpeoplesuchassmiths,leatherworkersorcarpenters.Itwasthenthatthequestionofpaymentarose.
Atfirsthegotwhathewantedbyasimpleprocessofexchange.Thesmithwhohadnotthetimetolookafterlandorcattlewasgladtotakemeatorgrainfromthefarmerinexchangeforanaxeoraplough.Butasmoreandmoregoodswhichhadnofixedexchangevaluecameonthemarket,exchangebecametoocomplicatedtobesatisfactory.Anotherproblemarosewhenthosewhomadethingswantedtogetstocksofwoodorleather,oriron,buthadnothingtoofferinexchangeuntiltheirfinishedgoodswereready.Thusthedifficultiesofexchangeledbydegreestotheinventionofmoney.Insomecountrieseasilyhandledthingslikeseedsorshellsweregivenacertainvalueandthefarmer,insteadofpayingthesmithforanewaxebygivinghimsomemeatorgrain,gavehimsomanyshells.Ifthesmithhadanyshellsleftwhenhehadboughthisfood,hecouldgetstocksoftherawmaterialsofhistrade.Insomecountriesquitelargethingssuchascowsorcamelsorevenbigflatstoneswereusedfortrade.Later,piecesofmetal,bearingvaluesaccordingtotherarityofthemetalandthesizeofthepieces,orcoinswereused.Moneyasweknowithadarrived.
1.Exchangeofgoodsbecamedifficultbecause_________.
Amanbecamemorecivilized
Bsmithsbegantolookafterlandorcattleintheirsparetime
Cmoreandmoregoodswhichhadnofixedexchangealuescametothemarker
Dfarmershadn'tenoughgrainormeattoprovidefor
skilledworkers
2.Moneywasnotuseduntil_______.
Apaperwasinvented
Bpeoplepracticedasimpleprocessofexchange
CnothingcouldbeofferedinexchangeDtheexchangeofonethingforanotherbecametoocomplicated
3.Thebesttitleforthispassageis_____.
AWhatismoney
BWhataremoney'sfunctions.
CTheimportanceofmoney
DThebeginningofmoney
Wearepleasedto_____youthat6000dozenofshirtsunderSalesConfirmationNo.C123,L/CNo.5678havegoneoffonS.S."Dongfeng"
OnwhichdateareJamesandAlangoingtomeet?
-----Dad,lookatthebuilding.Itisonfire.
-----Call119____________mobilephonerightnow