5、t+句子(...的原因是...)例句:Thereasonwhywehavetogrowtreesisthattheycanprovideuswithfreshair./Thereasonwhywehavetogrowtreesisthattheycansupplyfreshairforus.我们必须种树的原因是它们能供应我们新鲜的空气。九、The + ~er + S + V, ~~~ the + ~er + S + V ~~~ The + more + Adj + S + V, ~~~ the + more + Adj + S
6、 + 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、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。十一、~~~ enable +
7、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。 十二、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 trafficproblems.该是有关当局采取适当的措施来解决交通问题的时候了。十三、Those who ~~~ (...的人.
8、..) 例句:Those who violate traffic regulations should be punished. 违反交通规定的人应该受处罚。十四、be + forced/compelled/obliged + to + V (不得不...) 例句:Since