Mary Dexter is a student．She is from the USA．She studies in a middle school．1 Her favorite subject is science．Though Mary is only 13 years old，she begins to think about her future(未来)．After she finishes high school，she wants to study at a big college(大学)in SanDiego．2

    Mary wants to study marine biology．That is to say,she will learn about all the animals in the sea．And San Diego is a great place to study marine biology because it is near the sea，and the city has a great Sea World．People can see many sea animals there．

     3"I want to work with sea animals and help them．"says Mary．

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