Eg: Nonetheless, I am still in favor of space travel, for its merits far outweigh demerits.
2. 让步状语从句：常由although, though, even though/ if, as long as和notwithstanding引导
Eg: Although this view is wildly held, this is little evidence that education can be obtained at any age and at any place.
3. 条件状语从句：常由if, on the condition that和providing that引导
Eg: If you want to achieve something or intend to fulfill one of your ambitions, you must work hard, make efforts and get prepared.
Eg: When it comes to education, the majority of people believe that education is a lifetime study.
5. 目的状语从句: 常由so that和in order that引导
Eg: Millions of people have to spend more time and energy on studying new skills and technology so that they can keep a favorable position in job market.
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第三， 宾语从句。 6 l/ Y9 m5 z( L+ Y, c# B! u
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.
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第五，主语从句。 ) T7 B- b7 V% P+ b, c
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.
第六，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.
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Eg: Only if the government will take some appropriate measures, will this intractable problem be tackled.
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Eg: Every means should be tried to protect the environment on which people live.
Eg: Tourism, which is a rising industry, has become the major source of economy, playing crucial role in many Asian countries.
Eg: To be more specific, government should stage some relevant laws or regulations to severely punish the factory producing a great number of pollutants and the people littering or spitting deliberately.
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