题目列表(包括答案和解析)
根据图画及上下文提示，在下面对话的空白处填入适当的话语（话语可以是句子、短语或词），使对话完整。
A: Hey, Ginny．What do you call those big, gray things in the water?
B: 1 ．
A: What?
B: Manatees．They’re very gentle and very shy．
A: 2 ?
B: They’re usually about 10 feet long and they weigh about 1,000 pounds．
A: How much do they eat everyday?
B: They need about 100 pounds of aquatic food a day．
A: 3 ?
B: It is underwater plants and vegetation （植被)．
A: That’s what they eat?
B: Yes, it is．
A: 4 ?
B: Yes, they are endangered．But, we’re trying to save them．
A: Wait a moment．Why are they endangered?
B: 5 ．
A: Where do they live?
B: They live in the swamps（沼泽）．6 ．They are endangered also because there sometimes isn’t enough food for all of them．
A: 7 ．There used to be a lot of manatees, but now there aren’t very many of them left, I think．
B: Yes, 8 ．At this point, there are only about 2, 500 in the U．S．
A: 9 ?
B: Since 1927 laws have been passed to protect them．
A: Thank you for your information．
B: 10 ．
| 补全对话.。 | |
| A: Can you tell us about the manatees, please? B: Sure, we are trying to save them. A: __1__ B: Yes. There used to be many manatees, but now there aren't many of them. A: __2__ B: At this point, there are only about 2,500 in the US. In 1972, it was discovered that they were endangered. Since then the government has passed laws to protect them. A: __3__ B: Their favorite habitat is the water under the trees in mangrove swaps. A: __4__ B: Some of the swamps have become polluted. Also, sometimes there isn't enough food for them. As you can see, they are large. The average manatee is about three meters long and weighs about 1,000 pounds. They need about 100 pounds of aquatic feed a day.. A: Aquatic feed? B: __5__
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