Directions: Write an essay in support of ocean exploration under the title Why Ocean Exploration Is So Important.Tips：A piece of argumentation (论说文) is one in which you make a claim or argument for or against something and back it up with facts or reasons in an effort to persuade or influence others. The argument may be stated at the beginning of the piece, and/or at its end as a conclusion. And the reasons supporting it should be set forth one by one. Here are some sentence patterns you can use to list your reasons: There are some good reasons / two possible reasons for … The reason lies in that … On the one hand … On the other hand … In the first place / First of all / For starters / To begin with … Secondly / Furthermore / In the second place / In addition / Besides / Also …Finally / Last / Last but not the least …Evaluation criteria:1. You should write an essay of no less than 150 words;2. You should state clearly what you stand for, either at the beginning of the essay or at its end;3. You should give convincing reasons for your arguments;4. You should use as many as possible of the new words and expressions you have learned in this unit.