英语高手们：帮我看看我写的作文中 有没有错误

英语高手们：帮我看看我写的作文中 有没有错误
这是写一篇学生会通知同学们去爬山的通知
Boys and girls,I am telling a good news .To reduce our study stress ,the students' union decided to organise an activity ,and we can go to the Mountain Yao .Well,here are some orders.
Firstly,please arrive at school gate at 8:00 on Saturday morning .Do on time ,or we won't wait for you.And our activity time is Saturday 8:00 a.m to 4:00 p.m.What's
more ,make sure bring some drinkings and so that you won't be affected by heat .
Bring a camera .Some girls can wear a cap so that the sunshine won't heat you.Finally,you can sing songs on grass ground,and we will play games together.
I wish you can have a great time!g students' union
我现在检查了一下,有3处错误
1.news为不可数名词,不应用 a good news ,应该为 a piece of news
2.第2段第2行应用 from...to...的形式 ,而不能直接在时间后加to
3.make sure to do
完了,惨了~