it的用法总结表格

it的用法有几类，最常见的是做普通代词，代指前文提到的某种物体或某个事情，比如I bought a table，it代指前面的table；

第二个用法是用it或there来代指不确定的东西；

第三种用法是it做强调句的形式主语

It was a time of peak demand for the product.

那是对该产品需求最旺的时期。

It is less of a problem than I\'d expected.

问题不像我预料的那么大。

It is estimated the project will last four years.

据估计，这项工程将持续四年。

It was not a propitious time to start a new business.

那不是营业开张的吉时佳日。

She found it extremely difficult to get a job.

她发觉找工作极其困难。

It would be preferable to employ two people, not one.

雇请两个人比雇请一个更好。