解释一个英语句子!Beforeyouhandinyourtestpaper……最好有句子成分品析thankyou

Question

解释一个英语句子!
Before you hand in your test paper ……
最好有句子成分品析
thank you

Answer 1

Before you hand in your test paper …… 时间状语从句.
Before (连接词) you(主语) hand(谓语) in(状语) your(定语) test(定语) paper (宾语)……
Before you hand in your test paper …… 后面再加主句.如：Before you hand in your test paper,please tell me(主句).
动词和副词构成的短语叫动副短语,如：go across.
动词和介词构成的短语叫动介短语,如look at.
注意!在这俩个短语中使用代词时往往：动副短语可拆而动介短语不可拆.