倒装句
Eg: Only if the government takes some appropriate measures, will this intractable problem be tackled.
只有政府采取适当的措施，这个棘手的问题才能被解决。
同位语从句
Eg: It is an undeniable fact that environmental pollution becomes increasingly serious.
环境污染变得越来越严重是不可否认的事实。
Eg: No one can deny the basic fact that it is impossible for average workers to master those high-technology skills easily.
没有人能否认这一基本事实：对于一般工人来讲，轻松掌握这些技术是不可能的。
主语从句
Eg: What has caught our attention is /It is noticeable that the environment in both the rural and urban areas is deteriorating.
值得注意的是农村和城市的生态环境都在不断恶化。
Eg: It is universally acknowledged that environmental pollution becomes one of the most serious problems in China or even the world as a whole.
众所周知，环境污染问题是中国乃至世界面临的最为严重的问题之一。
强调句: 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.
汽车和工厂排放大量的废气，使得环境被污染。
以上就是为大家整理的