“If there were the day ...”后面虚拟时态怎么用?明天要交..

题目

“If there were the day ...”后面虚拟时态怎么用?明天要交..
英语作文题目 write a composition on one of the dreams you are longing for.Try to repeatedly use the sentence pattern “If there were the day ...” in your writing.there were the day ...” 后面时态怎么弄,如果我想表达“有一天没有污染”可不可以写““If there were the day pollution disappears” 用 disappears还是disappeared?

答案

不好意思,说一下你句子的问题,
第一：先不说时态.你的句子中有两个谓语动词,be动词虚拟和disappear,一个句子不等由两个谓语动词.以后留心一下,两个谓语动词出现在一个句子肯定是错的,所以用介词短语或定语从句来代替.
如：If there were the day without pollution.(介词短语)
或：If there were the day having no pollution.（have + ing 做形容词）
或：If there were the day when there had no pollution/when pollution dispeared（定语从句）
（当然,如果你是特意在pollution前省略了先行词that,when的话,那就是正确的）.
第二：说时态问题.你这里if主导的是从句（其中双谓语动词的问题上面说了）,你还应该考虑主句的时态.即,假如一天没有污染,我会...,后面半句的时态（即主句的时态）的才是问题的关键.下面给你解释一下这类句子,
虚拟的句子这样理解,以后一通百通了.举个例子作比较,
"If I were you,I would tell him."
（事情没发生,意思是“如果我是你,我将告诉他”,表示将来）
"If I were you,I would have told him.'
（事情已经发生过了,而我没有告诉他,所以翻译为“如果我是你,我就会告诉他”,表示过去,但已经不能改变了）
只有这两种可能.
所以回到你的问题,如果有一天没有污染,我会（怎样怎样）.表示事情发生是在将来,所以用if there were the day without pollution,I would ...
大致就这样,加油哦