不要使用 "There be" 矩形

There are normally 500 students taking TOFEL courses in every class. ->  The number of students for TOFEL courses is normally 500.

There are many people who prefer to go by bike, because they are not satisfied with bus service. -> The public preference for riding bicycles reflects their dissatisfaction with bus service.


There are fewer and fewer green trees in many big cities, while there are more and more concrete buildings. -> More cement construction replaces green belts and occupies the city.
Example: The number of concrete buildings in many big cities has enormously increased at the expense of green belts.


There are fewer and fewer citizens who like to see films. -> Films has lost their appeal to the public.


There are many people who complain of severe housing shortages. -> House shortages become the source of great complaint.

使用非人物主语

Cheating on tests repeatedly invites self-defeat.
Repeated cheating invites self-defeat.
To cheat on tests is to invite self-defeat.
Whoever cheats on tests is to invite self-defeat.
What invites self-defeat is to cheat on tests repeatedly.
It is repeated cheating on tests that invites self-defeat.