在句子what things do you think are usually needed
for a video conference call中need为什么是过去分词形式?
其实, 你的句子文法是错的。必须纠正后才能告诉你 :
更正 : What do you think that things are usually need for a video conference call ?
are need 的 are 是 Verb to be , 因此 are need 成为被动语态的过去分
词式。
很多同学不明白, 为何 are 是现在式, 怎么还称过去式的分词 ?原来经研究后的结果, 第一 , 分词是用完成时态第三个词, e。g。 do, did, done ; done 就是完成时。可惜, need 词是特殊没有 Tense 的, 只是一个 need 现在式, 所以 只有用 need, 而不能自作聪明去 ed ! 第二, 分词是不看前面的 Verb to be are 或 were , is 或 was 而去决定现在或过去分词。
这不是时态, 更与时态无关。 第三, are usually need 形成为被动语态的过去分词。
最后, 若见到有 they are need, they were need, they shall be need 都可称之为被动语态的过去分词。
what---What
What things do you think are usually needed for a video conference call?
are usually needed 是被动语态。
英语中的被动语态的谓语是由 be 的适当形式加上动词的过去分词构成的。
do you think 在句中是插入语,去掉来看是what things are usually needed, 意思是什么东西经常是被需要的,所以用的被动
needed 和前面的是动词 are 组成 -- are needed,构成动词 need 的被动语态,
中间的usually 是副词
What things do you think are usually needed for a video conference all?
译成中文时可以不用被动语态
--- 您认为视频电话会议都需要要哪些内容(东西)?
被动语态,当然是needed
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