In short,dogs ___ cooked foods live shorter,less healthy and more painful lives.A.to be fed on B.having fed on C.fed on D.feeding on...为什么是被动关系

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In short,dogs ___ cooked foods live shorter,less healthy and more painful lives.A.to be fed on B.having fed on C.fed on D.feeding on...为什么是被动关系

In short,dogs ___ cooked foods live shorter,less healthy and more painful lives.A.to be fed on B.having fed on C.fed on D.feeding on...为什么是被动关系
In short,dogs ___ cooked foods live shorter,less healthy and more painful lives.A.to be fed on B.having fed on C.fed on D.feeding on...为什么是被动关系

In short,dogs ___ cooked foods live shorter,less healthy and more painful lives.A.to be fed on B.having fed on C.fed on D.feeding on...为什么是被动关系
这里的fed on cooked food其实是过去分词短语修饰dogs的,因为狗是被喂养的（它不可能自己喂养自己吧）,所以“狗”和“喂”之间属于被动关系.翻译起来就是“总之,吃煮过食物的狗活的时间更短,更不健康,过着更痛苦的生活”.
其实分词修饰名词主要是看被动或是主动关系,主动就用现在分词,被动就用过去分词.

完整的是dogs that are fed on cooked food live shorter...
that be可以同时省略，这样懂了？
望采纳~

狗是被喂给东西吃，被动

In short,dogs ___ cooked foods live shorter,less healthy and more painful lives.A.to be fed on B.having fed on C.fed on D.feeding on...为什么是被动关系 Three hundred years ___(be)a short time in sory. in short The students are ___ ___(表演)a short play in the school hall ：sally is tall ___ short hair.A.with B.of C.for D.in 1.Everybody ___ (like) apple.2.Anna is ____ (short) in her family.3.He is ___ (good) of all. Sec. is short for ___. stray dogs in streets是什么意思? dogs arm in arm. 翻译 the days are ___ and hot in summer in china .A.long B.short C.wide D.thick a short man in in the short in a short in the short in a short in short 是什么词性 in short什么意思? we found ___ impossible to finish the work in such a short timeit’s that was it that