每日对话围绕一家人在美国50个州的旅行见闻展开。请来跟随他们一起体验地方风情和历史。这个对话系列适于中级或中级以上英语水平的学生使用。
今天他们来到马里兰州（Maryland），在这里，切萨皮克湾（Chesapeake Bay）引发了一番与自然生态有关的议论。
Sam: We made it to Maryland. Now we’re just a short trip away from visiting the White House.
Gina: True, but there’s a lot to see here. The Chesapeake Bay is an incredible, complex ecosystem.
Paul: That’s right. It includes important habitats. The bay and its rivers, wetlands, and forests are home to diverse groups of plants and animals.
Sam: I’m still disappointed we didn’t see any moose in Maine. I’m assuming there are no moose here. So what types of creatures can we see here?
Gina: There are so many different types of fish. Plus, we’ll most likely see crabs. Maryland is famous for blue crabs.
Claudine: Anything cuter than crabs and fish?
Paul: It’s likely we’ll see deer and squirrels, and we might see rabbits and foxes too.
Gina: And I’m hoping we don’t see a black bear.
让我们复习一些词语：
The Chesapeake Bay：切萨皮克湾，它是部分位于马里兰州境内的一个河流入海口（an estuary）。河流与海洋在此汇合，形成一片淡水与海水交融的水域。
Complex：复杂的
An ecosystem ：生态环境。它既包含动植物等生命体，也包含石头、土壤、阳光和水等非生命物质。
A habitat ：栖息地，即某种动物或植物休养生息的地方
Wetlands ：湿地。虽然wetland在英文里是可数名词，但通常用复数形式wetlands。
Diverse ：多样，多元
Assume ：想当然地认为，设想
A creature ：有生命之物
Chesapeake blue crab ：切萨皮克湾篮蟹，属于大西洋西部水域蟹类，蟹壳泛青蓝色
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