英语四级
八、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。
九、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，我们经不起浪费它。
十、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 satisfactory. {by no means = in no way = on no account 一点也不}
虽然我们的国家富有，我们的生活品质绝对令人不满意。
十一、The + ~er + S + V,
~~~the + ~er + S + V ~~~
The + more + Adj/n + S + V,
~~~the + more + Adj + S + V~~~（愈...愈...）
例句：The harder you work, the more progress you make.
你愈努力，你愈进步。
The more books we read, the more learned we become.
我们书读愈多，我们愈有学问。
十二、By +Ving, ~~ can ~~ （借着...，..能够..）
例句：By taking exercise, we can always stay healthy.
借着做运动，我们能够始终保持健康。
十三、~~~ enable + Object（受词）+ to + V （..使..能够..）
例句：Listening to music enable us to feel relaxed.
听音乐使我们能够感觉轻松。
十四、On no account can we + V ~~~ （我们绝对不能...）
例句：On no account can we ignore the value of knowledge.
我们绝对不能忽略知识的价值。
十五、It is time + S + 过去式 （该是...的时候了）
例句：It is time the authorities concerned took proper steps to solve the traffic