By the end of this century, the scientists (discover) ______ a cure for the dise

游客2023-10-05 41

问题 By the end of this century, the scientists (discover) ______ a cure for the disease.

选项

答案 will have discovered

解析本题考查的是动词时态变化。“by the end of”意为“到……时候为止”，所以在出现"by the end of"的句子中，句子时态应是完成时态，通常是过去完成时或将来完成时。本句表示到将来某一时间为止的动作，所以要用将来完成时。试比较：By the end of last week，I had learnt 5000 words． (到上周为止，我已经学了5000个单词。)

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By the end of this century, the scientists (discover) ______ a cure for the dise

Intheeighteenthcentury,writers______hoursincoffeehouses,discussingthe

Spaceandoceansarethenewworldwhichscientists(try)______toexplore.are

Nothavingbeendiscovered,manylawsofnatureactuallyexistinnature.A、虽然许多自

Thefirstpartofthe20thcenturysawmoregreatinventions.A、这是20世纪前半期的第一批伟大的发

Whathavescientistslearnedagreatdealabout?[br]Whatcanyouinferfromth

Whathavescientistslearnedagreatdealabout?[br]Whatgreenvegetableisno

Scientistshavelearnedagreatdealaboutthekindsoffoodpeopleneed.The

HewenttothesupermarketonlytodiscoverthatpriceofthegoodsWashigh．A、他

______(found)inearly16thcentury,thischurchbecameahistoricsiteofthis

SinceWorldWarTwo,especiallyinthelastfewdecadesofthe20thcentury,

Whattopicarethemanandwomandiscussing?[br][originaltext]M:Ireallyapp

Inchoosingthetypeofcareeryouwilltakeuponleavinguniversityorcoll

绩效管理重点关注的是（）。A.绩效计划 B.绩效指标设定口 C.绩效执行

A.R=0.24kj/(kg·K) B.R=240kJ/(kg·K) C.R

大便色鲜红、暗红或紫红，甚或黑如柏油样，次数增多，有胃肠或肝病史，当诊断为A.便

装配式桥梁吊装时构件的吊环应顺直，吊绳与起吊构件的交角小于（ ）时，应设置吊架或

()是理财规划师较为适当的做法。A:对自身执业经历作修饰美化 B:跟随客户的思

（）有助于旅行社衡量各种风险管理目标实现的程度和对风险管理目标的控制。A.目

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装配式桥梁吊装时构件的吊环应顺直，吊绳与起吊构件的交角小于（　）时，应设置吊架或