5、ateany pollution. 使用太阳能的优点是它不会制造任何污染。 reasonwhy+句子~~~isthat+句子 例句:Thereasonwhywehavetogrowtreesisthattheycanprovideuswithfresh air./Thereasonwhywehavetogrowtreesisthattheycansupplyfreshair forus. 我们必须种树的原因是它们能供应我们新鲜的空气。 + ~er + S + V, ~~~ the + ~er + S
6、+ V ~~~ The + more + Adj + S + V, ~~~ the + more + Adj + S + V ~~~ 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。 +Ving, ~~ can ~~ 例句:By taking exercise, we can always st
7、ay healthy. 借着做运动,我们能够始终保持健康。 11.~~~ enable + Object+ to + V 例句:Listening to music enable us to feel relaxed. 听音乐使我们能够感觉轻松。 is time + S + 过去式 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
8、时候了。 who ~~~ 例句:Those who violate traffic regulations should be punished. 违反交通规定的人应该受处罚。 + forced/compelled/obliged + to + V 例句:Since the examination is around the co