A revolution in teaching is required now。In the past，we just took it for granted that a teacher' s aimwas to teach the students all that he knew and solve all the problems for them。Therefore，students could mot judge things on their own under this 。Thus students graally lost the ability to learn by 。In addition，they were only equipped with the knowledge that were taught in class and made the same judgement upon every problem which might crop up。Of course，they would find their knowledge not enough to solve practical problems。
So it is time to change the teaching method。
A teacher' s goal is to help the students develop not only the ability to learn by but the skills to make on every aspect on their own。It' s not necessary for the students to turn to teachers for help while meeting with 。The first thing is to develop the students' abilities to make sound upon any problem and overe 。
Protect the Ocean
We live in the earth. The sea is about 70% of the earth surface. Theocean is the earth's water warehouse. The ocean provides food and many kinds for people. At the same time, people fetch more from the sea, but harmit too much, such as , throwing garbage in it, polluting water. We should protect the ocean. If people don't stop to damage marine , then we will be revenged inthe near future, then the human being will face a huge disaster.