3a 部分答案
<1>Some kinds have teeth; Huge
<2>Live in the sea
<3>Eat small fish and other sea life
<4>Jump high out of the water;Sing songs
<5>Humans catch whales for meat,fat and oil; Whale parts sold to make things like candles and soap;Water pollution
<6>Rules on whale protection; Stop putting rubbish into the sea; Learn more about whales
3b 部分答案
Whales are huge animals. They live in the sea and eat small fish and other sea life. One interesting fact is that whales can jump high out of the water. Another interesting fact is that they can sing songs. Some kinds of whales are in danger because humans catch them for meat,fat and oil, and use whale parts to make candles and soap. We should protect whales from water polLution. I think people should stop putting rubbish into the sea,make rules on whales protection and learn more about whales.
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