it is important that 虚拟语气与 接不定式的区别

it is important that虚拟语气与接不定式的区别：英语发展的趋势是虚拟语气逐渐被陈述语气形式代替。that从句中的动词原型式虚拟语气在英国英语常用should do代替。在非正式语体中，英国英语还可以用陈述语气。例如：

I suggest that he come tomorrow.美式英语

I suggest that he should come tomorrwo.英式英语

I suggest that he comes tomorrow.英式英语非正式语体

这种that从句用陈述语气形式，国内英语教学没有涉及。但雅思考试考的是英式英语，在阅读文章中就可能出现这种非正式的英式英语用法。

It is important that students develop an awareness of how the Internet can be used.

重要的是学生逐渐懂得如何使用互联网。

It is important that he should attend every day.

他每天都要出席，这很重要。

It is important that the injured leg should be elevated.

将受伤的腿抬高是很重要的。