_1. the ~ est 名词 (that) 主词 have *r seen ( known/heard/had/read, etc)
_the most 形容词 名词 (that) 主词 have *r seen ( known/heard/had/read, etc)
_例句：helen is the most beautiful girl that i have *r seen.
_海伦是我所看过*美丽的女孩。
_mr. chang is the kindest teacher that i have *r had.
_张老师是我曾经遇到*仁慈的教师。
_2. nothing is ~er than to v
_nothing is * 形容词 than to v
_例句：nothing is * important than to receive education.
_没有比接受教育更重要的事。
_3. ~cannot emphasize the importance of ~ too much.(再怎么强调...的重要性也不为过。)
_例句：we cannot emphasize the importance of protecting our eyes too much.
_我们再怎么强调保护眼睛的重要性也不为过。
_4. there is no denying that s v ... (不可否认的...)
_例句：there is no denying that the qualities of our living have gone from bad to worse.
_不可否认的，我们的生活品质已经每况愈下。
_5. it is universally acknowledged that 句子~ (全*知道...)
_例句：it is universally acknowledged that trees are indispensable to us.
_全*知道树木对我们是不可或缺的。
_6. there is no doubt that 句子~ (毫无疑问的...)
_例句：there is no doubt that our air pollution leaves something to be desired.
_毫无疑问的我们的空气污染令人不满意。
_7. an advantage of ~ is that 句子 (……的优点是……)
_例句：an advantage of using the solar energy is that it won’t * (produce) any pollution.
_使用太阳能的优点是它不会制造任何污染。
_8. the reason why 句子 ~is that 句子 (……的原因是……)
_例句：the reason why we have to grow trees is that they can provide us with fresh air / the reason why we have to grow trees is that they can supply fresh air for us.
_我们必须种树的原因是它们能供应我们新鲜的空气。
_9. so 形容词 be 主词 that 句子 (如此……以致于……)
_例句：so precious is time that we can’t afford to waste it.
_时间是如此珍贵，我们浪费不起。
_10. adj as subject(主词) be, s v(虽然...)
_例句：rich as our country is, the qualities of our living are by no means sati*actory. 【by no means = in no way = on no account 一点也不】
_虽然我们的*富有，但我们的生活品质一点也不令人满意。
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