Question

解释一下这个句子的语法 成分

when john walked around the museum to see if everything was all right.

告诉我是什么从句 并解析一下句子结构 谢谢
我把这个句子完整的写出来 请分析一下句子结构（就是主语谓语宾语等各是什么）
one day,when john walked around the museum to see if everything was all right,he found a painting lying on the floor.

只分析这个句子就可以了 谢谢

Answer 1

解释一下这个句子的语法 when john walked around the museum to see if everything was all right.
告诉我是什么从句 并解析一下句子结构 谢谢
答：先别谢。先告诉我，你到底认为这是个句子还是个从句？
我告诉你，这是个时间状语从句，也可能是个名词性从句，还可能是定语从句！
下面是此从句可能的来源:
No one was left in the museum now, and John was walking round to see if everything was all right. Suddenly he saw a beautiful painting lying on the floor. John picked it up and gave it to the director of the museum.
将第一句和第二句合起来可以用上你这个从句：
John saw a beautiful painting lying on the floor when he walked around the museum to see if everything was all right.
当然用when he was walking ... 要好一些。
这样更好：
John was was walking round to see if everything was all right when suddenly he saw a beautiful painting lying on the floor.
正好是一个有用的句型：sb. was doing sth. when sth. (unexpected) (suddenly) happened.

Answer 2

时间状语从句，翻译过来就是当john巡视博物馆周围以观察是否一切妥当。从句中 to see if everything was all right（观察是否一切妥当）是john walked around the museum（john巡视博物馆周围）的目的状语。希望可以帮到你

追问

to see if everything was all right中的if everything was all righ作什么成分？

Answer 3

这不算一个完整的句子，只能算是个状语。整体是以个一以when引导的状语从句，中间if是see的宾语从句。

追问

也就是when john walked around the museum to see if everything was all right是一个状语从句
to see if everything was all right是john walked around the museum的目的状语
if everything was all right是see的宾语从句?

追答

to see if everything was all right整体是john walked around the museum的目的状语，，这是不定式作母的状语，而if everything was all right是see所发出的吧，所以他就是see的宾语从句。

追问

所以还是说to see if everything was all right是john walked around the museum的目的状语
if everything was all right是see的宾语从句?

追答

是的，有什么疑问吗？