【Therearedesertplantswhichsurvivethedryseasonintheformofinactiveseeds.Therearealsodesertinsectswhichsurviveasinactivelarvae(幼虫).Inadditiondifficultasitistobelievetherearedesertfishwhichcansurviveth】|小学英语问答-字典翻译问答网

问题标题：

【Therearedesertplantswhichsurvivethedryseasonintheformofinactiveseeds.Therearealsodesertinsectswhichsurviveasinactivelarvae(幼虫).Inadditiondifficultasitistobelievetherearedesertfishwhichcansurviveth】

问题描述：

Therearedesertplantswhichsurvivethedryseasonintheformofinactiveseeds.Therearealsodesertinsectswhichsurviveasinactivelarvae(幼虫).Inadditiondifficultasitistobelievetherearedesertfishwhichcansurvivethroughyearsofdroughtintheformofinactiveeggs.Thesearetheshrimps(虾)thatliveintheMojaveDesertanextremelydryplaceinthesouth-westoftheUnitedStatewhereshadetemperaturesofover50"Careoftenrecorded.

TheeggsoftheMojaveshrimpslooklikegrainsofsandbothinsizeandappearance.Whenenoughspringrainfallstoformalakeonceeverytwoorfiveyearstheseeggshatch.Thenthewaterissoonfilledwithmillionsofshrimpswhichfeedontinyplantandanimalorganisms(有机物)growinginthedesertlake.Withinaweektheshrimpsgrowfromtheiroriginal1millimetertoalengthofabout1.5centimeters.

Throughoutthetimethattheshrimpsarerapidlymaturingthewaterinthelakeequallyrapidlyevaporates(蒸发).Thereforefortheshrimpsitisaraceagainsttime.Bythe12thdayhoweverwhentheyareabout3centimeterslonghundredsoftinyeggsformontheunderbodiesofthefemales.Usuallybythistimeallthatremainsofthelakeisalargemuddypatchofwetsoil.Onthe13thdaytheshrimpslaytheireggsinthemud.Thenhavingensuredthattheirspecieswillsurvivetheshrimpsdieasthelastofthewaterevaporates.

Ifenoughrainfailsthenextyeartoformanotherlaketheeggshatchandonceagaintheshrimpspassrapidlythroughtheircycleofgrowthadulthoodegg-layinganddeath.Someyearsthereisnotenoughraintoformalake;inthiscasetheeggswillremaindormantforanotheryearorevenlongerifnecessary.

1.Thepassagemainlydealswith________.

A.thebirthoftheMojaveshrimps B.thesurvivalofdesertshrimps

C.thesurvivalofdesertlife D.lifeintheMojaveDesert

2.WhichofthefollowingistheMOSTdistinctivefeatureofMojaveshrimps?

A.Theirlivesarebrief.

B.Theyfeedonplantandanimalorganisms.

C.Theireggscansurviveyearsofdrought.

D.Theylaytheireggsinthemud.

3.Bysaying"fortheshrimpsitisaraceagainsttime"(Line2Para.3)theauthormeansthattheshrimpshaveto_____

贾明华回答：

　　BCDAD

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