unit13thewaterplanet2

unit13thewaterplanet2内容摘要：

our water. 5. Why are estuaries important to human beings? ① Estuaries provide both recreation and education for human beings. People can fish, swim and have fun on the beach. Scientists and students have endless opportunities to study a variety of life in the habitat. ② Estuaries also contribute to the economy through tourism and fishing. 1. The passage mainly tells us______. A. how the estuaries form naturally B. why so many cities and towns are built around estuaries C. the living things in the estuaries D. the characters of estuaries and their great effect on living things and human beings 2. The word“habitat”in Para. 2 of the passage probably means______. 3. It’s not stated but we can infer from Passage that______. A. estuaries are the homes of thousands of animals and plants B. estuaries are more or less polluted by the water ing from inland sources at present C. they play an important part in the world’s climate D. estuaries provide both recreation and education for human beings 2. An estuary is the body of water where a river meets the ocean. 河口是河流和海洋交汇的地方。 This is the place where。