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There are many wetlands（湿地）in China and some of them have become the world’s important wetlands. The Chinese Yellow Sea Wetlands are 41 them. They are in Yancheng，Jiangsu Province. They are 42 for many different kinds of birds and animals. The world"s 43 Milu Deer Nature Reserve is there. More than 700 milu deer live 44 there. There are not many red-crowned cranes（丹顶鹤）in the world，but every winter you can see some in the Red-crowned Cranes Nature Reserve in the Yellow Sea Wetlands.
The temperature in the wetlands is usually 45 too high nor too low. There is a lot of rain and sunshine, too. They are really good places for wildlife. Offering food and home for some special kinds of animals and birds is not the only reason 46 we need to protect wetlands. Wetlands are important 47 they also prevent flood(洪水). But some people want to change the wetlands to make more space for farms and buildings. This means there will be 48 space for wildlife. So the animals and birds will be in danger.
Luckily, many people are beginning to realize the 49 of wetlands and wildlife. Every year, on February 2nd, many activities 50 to tell people more about wetlands.
41. A. between B. with C. among D. for
42. A. houses B. homes C. families D. rooms
43. A. large B. larger C. largest D. much largest
44. A. friendly B. freely C. dangerously D. happy
45. A. either B. both C. neither D. no
46. A. how B. why C. when D. where
47. A. so B. but C. because D. but
48. A. much B. more C. more and more D. less and less
49. A. knowledge B. culture C. importance D. news
50. A. are held B. are made C. are used D. are seen
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