七、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 create
(produce) any pollution.
使用太阳能的优点是它不会制造任何污染。
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 + 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。
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