求高手给我评一下英语作文!（两个首段）

Recently we often hear that people become negative under heavy stress.It is common that become positive is especially important.It caused a discussing on how to become positive.
It is common knowledge now that people become negative under great pressure.Being positive seems to be more difficult and critically important.It has caused a wide discussion on how to become pro-positive.
——————————————————————————————-
Recently we often hear that college students initiate an enterprise instead of secure a job.However,a large portion of them failed for various reasons.It caused a hot debate on the college students start an enterprise.
These days,more and more college students take to start their own business instead of finding a job to work for.Unfortunately,a large portion of them failed for various reasons,which has resulted in a heated debate here and there.