Question

it is necessary that什么意思？

Answer 1

it is necessary that的意思是“这是必要的”

例句
1.So it is necessary that we research the theory and method for uncertain system.
由此可见，对不确定性系统的理论与方法的研究是必要的。
2.It is necessary that an efficient worker ( should) accomplish his work on time.
按时完成工作任务是下人工作效率高的工人必须做到的。
3.Unless it is necessary that you run a particular service, you should disable it.
除非必须运行特殊的服务，否则应当禁用该服务。
4.It is necessary that the problem ( should) be discussed at once.
立刻讨论这个问题很有必要。
5.It is necessary that a high school student should master a foreign language.
高中学生掌握一门外语很有必要。

Answer 2

选D这里是虚拟笑逗语气,Itisnecessarythatsbshoulddosth走某事是很必要的.虚拟语气的结构是should/would/coulddosth.虚拟语气中伏升亩的should不是可以省略吗?那答案C和D有什么区别?不是所有的虚拟语气should都可以省略的,上面那种句型的缺森就不可以省略.当由suggest引导的宾语从句的虚拟语气才可以省略例如Isuggestthatyou(should)getupearlier.[tele.aigogo.top/article/301528.html]
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Answer 3

答案应该激陪是C.即，Itisnecessarythttheproblembe.settled…原因吵铅晌分析:在itisnecessarythat从句中要使用虚拟语气，即shouldbesettled，其中should可升锋以省略。[tele.qdu123.top/article/430728.html]
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Answer 4

如果不好判清者宴断一答银般疑问句，我们可以转换成陈述句分析:1，Itisnecessarythathereturnsthebookatonce.这是一个虚拟语气句型，从句要用should+动词原嫌吵形，should可省略，所以正确表达是Itisnecessarythatheshoudreturnthebookatonce.他必须马上把书还回去2,Itisnecessaryforhimtoreturnthebookatonce.下面这个句型是Itis+形容词+forsbtodosth，“对某人来说，做什么是...的”对他来说，立刻归还书是必要的希望能帮到你~[tele.0888lj.cn/article/941057.html]
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