高二英语第七模块第三单元学案About killer whales1. Where do they live? — They can be found in all oceans but seem to prefer coastal waters and cooler regions. 2. How many killer whales are there? — They are no official killer whale worldwide population estimates.3. How well do they see or hear? — They have well-developed, acute senses. They can hear a vast range of sounds and have excellent vision in and out of water.4. How do killer whales have their young? — Killer whale males reach breeding age when they are around 22 feet long while females can breed when they are about 16 feet long. They breed all year round. Female killer whales usually give birth every 3 to 10 years.5. How long do killer whales live? — They can live to about 50-80 years old.About whaling Whaling operated between the 1830s and the 1920s on the south-eastern coast of Australia at a place called Eden where Clancy’s stories are set. Old Tom was one of the killer whales and his skeleton is displayed in the Killer Whale Museum in Eden.Scanning1) How did Clancy begin to believe that the killers would help the whalers catch the huge whales?2) How did the killers help the whales catch the whale?Teaching task : (Discussing)(主旨大意)1. The author mainly tells us in the text that ______. A. the killer whales are easily trainedB. the killer whales can help the whalers catch the huge whalesC. the killer whales kill the whales for their foodD. the killer whales drag the whales under the water2. Old Tom throws itself out of the water and then crashes down in order to ______.A. give the whalers the information about a whale B. tell the whalers it is hungry C. help the whalers catch the whale D. inform the whal...