英语句子成分请高手帮忙一一解答此句子的句型、成分及疑惑：Perhapsyouneed(参考答案选A)Atohaveyoureyesexamined.为什么不是BtohaveexaminedyoureyesC.toexamineyoureyes.D.tobeexaminedyoureyes.

Question

英语句子成分
请高手帮忙一一解答此句子的句型、成分及疑惑：
Perhaps you need (参考答案选A) A to have your eyes examined.为什么不是B to have examined your eyes C.to examine your eyes.D.to be examined your eyes.

Answer 1

Perhaps you need to have your eyes examined.
考查非谓语动词
这句话中,you是主语,need是谓语,to have your eyes examined是不定式做need的宾语.have sth done是固定用法,表示让某事被做,可以是主语做,也可以是主语让人做,此处是主语让人做.你让别人（验光师或医生）检查你的眼睛.
另外have sth done还可以表示主语遭遇到某事
eg：I had my leg broken yesterday.昨天我的腿摔断了.（我遭遇到腿被摔断这件事）
有不明白的我继续解释哦,