as做介词,necessary做名词么?Zoos are sometimes seen as necessary but not poor alternatives to a natural environment. Discuss some of the arguments for and/or against keeping animals in zoos.
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![as做介词,necessary做名词么?Zoos are sometimes seen as necessary but not poor alternatives to a natural environment. Discuss some of the arguments for and/or against keeping animals in zoos.](/uploads/image/z/4243870-46-0.jpg?t=as%E5%81%9A%E4%BB%8B%E8%AF%8D%2Cnecessary%E5%81%9A%E5%90%8D%E8%AF%8D%E4%B9%88%3FZoos+are+sometimes+seen+as+necessary+but+not+poor+alternatives+to+a+natural+environment.+Discuss+some+of+the+arguments+for+and%2For+against+keeping+animals+in+zoos.)
as做介词,necessary做名词么?Zoos are sometimes seen as necessary but not poor alternatives to a natural environment. Discuss some of the arguments for and/or against keeping animals in zoos.
as做介词,necessary做名词么?
Zoos are sometimes seen as necessary but not poor alternatives to a natural environment. Discuss some of the arguments for and/or against keeping animals in zoos.
as做介词,necessary做名词么?Zoos are sometimes seen as necessary but not poor alternatives to a natural environment. Discuss some of the arguments for and/or against keeping animals in zoos.
楼上这位分析得不对,necessary 绝对是形容词,名词是necessaries.这里的句子结构是这样的:(Zoos) (are sometimes seen) as (necessary but not poor alternatives) to a natural environment.
as是介词没错,但它是修饰后面alternatives (替代品)的,necessary but not poor(必要而又不廉价的)是一个整体作alternatives的定语.necessary和 as 两者并没有直接联系.
能,necessary当名词讲的意思是“必需品”。
动物园有时被视为必须的,但又不能成为自然环境的一个替代品。讨论关于是否该将动物养在动物园的问题。