Question

英语语法求救

Having walked in the desert for several days, we felt exhausted, but we had to find a pool before the water we had in the bottle______.
A, ru out of B, run out
到底要不要of 求高手分析

Answer 1

答案：ran out（不要of）或 was run out of

翻译：在沙漠里步行了数日，我们感到精疲力尽，但是我们得赶在我们瓶中的水用光前找到一个池塘。

解释：
1. run out是不及物动词，无被动语态，即结构为sth run out；
run out of是及物动词，后直接加宾语，有被动语态，即：run out of sth → sth be run out of.
2. 分析句中成分，以before所引导的状语从句中，主语为the water，而we had in the bottle为定语从句，修饰the water.
所以此句缺少谓语，主语是sth（the water），所以答案是ran out或was run out of.
即：the water ran out 或 the water was run out of.

Answer 2

不要of。把句子改一下就明白了。the water in the bottle had run out.瓶子里面的水已经消耗完了。只不过是把上述句子变成从句放在你说的句子里面。

Answer 3

A
run out of是用完的意思

Answer 4

肯定是不要的，全凭语感。

Answer 5

答案：B，不要of
分析：before后面从句中we had和in the bottle分别作定语和地点状语修饰the watter，run out为整个从句的谓语，译为“在我们所有的瓶子里的水喝完以前” ；如果the bottle前没有in，则原文还原应为run out of the bottle，这时就需要of，即A。

Answer 6

不需要of，因为横线上需一作后置定语的词组，A不能作定语