Whales live in the sea, but they 1_________ fish. They are mammals. The baby whales drink milk from the 2________body. Every spring 3_________of whales swim hundreds of kilometers to warm places to have their babies. Each mother whales 4_________to the same place every year. The mothers take very good care of 5_______. The whales 6_______ to each other with a high noise, it sounds like 7______. This “talking” can 8_________ for  9_________ than 300 kilometres.    10_____ people kill over a hundred whales a day. They kill them 11_____ many things. 12_______ them is a modern business. The whales dies very 13________ in great pain. More and more whales are killed by people , even the mothers and babies. 14___________ the  things goes on like this, there will be no young whales to grow up and no mother whales to  15________ more babies. 

　　答案：

　　1. aren’t  2. mothers’  3. groups  4. goes  5. their  

　　6. talk  7. singing  8. be heard  9. more   10. Yet  

　　11. to make  12 Killing  13. slowly  14. If  15. have