Eg: Some people claim that government should be mainly responsible for the environmental pollution.
Eg: Many experts point out that, along with the development of modern society, it is an inevitable result and there is no way to avoid it.
Eg: It is an undeniable fact that environmental pollution becomes increasingly serious.
Eg: No one can deny the basic fact that it is impossible for average workers to master those high-technology skills easily.
Eg: What has caught our attention is /It is noticeable that the environment in both the rural and urban areas is deteriorating .
Eg: It is universally acknowledged that?environmental pollution becomes one of the most serious problems in China or even the world as a whole.
It is + 被强调的内容 + that
Eg: It is cars and factories that release a great deal of gases, polluting the environment.
Eg: Only if the government will take some appropriate measures, will this intractable problem be tackled.