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| 选词填空。 | |
2. There _____ to be a lot of manatees. 3. Some of the swamps have become _____. 4. I feel that zoos _____ clean and safe places for _____ animals to live and help to _____ the public about _____ for them. |
I _________ _________ _________ _________ sad by the story.
2. The boy usually went to school late.(改为同义句)
The boy _________ _________ _________ to school late.
3. The river has been polluted by the factory since five years ago.(改为主动语态)
The factory _________ _________ the river since five years ago.
4. We're trying to save the manatees. (对画线部分提问)
_________ _________ you trying to _________ ?
5. Manatees eat about 100 pounds of food a day．(改为一般疑问句)
_________ manatees _________ about 100 pounds of food a day?
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 ．
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