题目内容
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 ．
1．They’re called manatees/We call them manatees/They are manatees/Manatees
2．How big are manatees/they
3．What is aquatic food/What do they eat
4．Are manatees/they endangered
5．Because their homes are disappearing/Because their living areas are populated/Because there is not enough food for them to eat（本题开放度较大，凡是能够回答manatees处境危险的原因，只要表达正确都得分）
6．And they have become polluted
7．I am sorry to hear that/What a pity
8．you are right/that’s right（本题开放度较大，凡是能够表示赞成意义的，只要表达正确都得分）
9．Have long have laws been passed to protect them/Are there any laws to protect them?
10．My pleasure（本题开放度较大，凡是能够回答感谢的，只要表达正确都得分）
