有没有大大帮忙看看我这篇作文写得有没有什么语法错误？或者不合适的地方？很短就150个单词！谢谢！

唔，都是一些个人想法，仅供参考。

the rise in phenomenon of cheating

考虑一下把phenomenon改成cases？
还有，介词是in吗？我自己大概会用of，lz自行决定嗯~

consciousness of students

貌似conscience表示良心之意，应该更适合一些？

care their score

应是care about

So we should make students understand

一定以we should这种口吻说的话，感觉用ensure一类的词比make好一些吧~
改成So we should ensure that students understand……
不过给出建议的时候用第一人称貌似太主观了，我觉得写成So it should be ensured that ……会好一点。

serious measures
改成severe punishments怎样？

significance of honest

honest是形容词，应用honesty。

honest education classes

貌似没这样的说法吧……
可以直接表达成classes about honesty/trustworthiness/credubility.

by having some honest education classes and give lectures.

语法错误哦~并列结构，前面是having，后面是give，不对吖~应该是giving lectures。
还有，此句主语是school，所以用have classes是不搭配滴~have换成give或者deliver什么的吧~

should be honesty

呃同学乃把honesty和honest搞混了？

第二段第二行score似应加s;
On the other hand用得不对，它是用来取反的，意思差不多是“相反”，此处可用Secondly;
倒数第二行honest是形容词，应加上y，用名词。最后一行的honesty应去掉y;
倒数第二行"having some honest education classes and give lectures”像是中国话，可用"having discussions about the importance of being honest among students or giving such lectures by teachers".
整体看，写的很好。现如今能写成这样的同学可真的不多啊。好好干，加油！