F
16. find/think/feel＋it＋adj. (for sb.)to do sth.     发现/认为/觉得做某事如何
越来越多的人发现吃太多汉堡包不利于健康。
More and more people have found it unhealthy to eat too many hamburgers.
很多大学生发现在大学中交友很难。
A lot of students have found it very hard to make friends at college.

G
17. get＋adj.的比较级＋and＋adj.的比较级    变得越来越……
地球变得越来越暖和了。
It gets warmer and warmer on the earth.
春天到了，天气变得越来越热了。
Spring is coming and it's getting warmer and warmer.
北京变得越来越美丽了。
Beijing is becoming more and more beautiful.
18.be/get ready for ... 为……做准备
get ... ready 准备好……
北京正在为举办奥运会做准备。
Beijing is getting ready for the Olympic Games.
课上，刘老师要求我们准备好纸和笔听写。(dictation)
Mrs./Mr. Liu asked us to get the paper and pens ready for the dictation in class.