英语：unit3《under the sea》period 2教案（新人教版选修7）

英语：Unit3Under the seaPeriod 2教案（新人教版选修7）Teaching aims1Grasp the basic information about the killer whales，such as size，habitat，food，how they hunt animals and the relationship with human beings.2Learn to retell the two anecdotes with the help of some key words.3Make sure the students know that killer whales are friends of human beings and we should keep balance with nature.Teaching proceduresStep 1Warming up and leadinTell students we are on a snorkeling trip under the sea and will come across a great variety of marine animals and plants：dolphins，turtles，manatee，eels，octopus，squids，butterfly fish，kelp，sea star，angel fish，clown fish/anemone fish，parrotfish，sea flower/anemone，seaslug，clam，coral，jellyfish，seahorse，shark，etc.Step 2PresentationMake sure students know some basic information about the whales：Background informationwriterClancycareera whalerwriting styleanecdotestimeat the beginning of the 20th centuryplaceAustralia main characterwhalers，killer whales，the baleen whalesmain ideathe killer whales help the whalers to kill a baleen whaleStep 3SkimmingAsk students to skim the passage quickly and answer the questions：What is the first anecdote about？And how about the second one?The first anecdote mainly talks about that _.AClancy began to work at a whaling stationBthe killer whales helped the whalers to catch a baleen whaleCthe killer whales hunted in a team and killed a baleen whaleDOld Tom showed whalers the way to a baleen whaleKey：BThe second anecdote：Old Tom saved a whaler James who was washed off the boat.Step 4ScanningFill in the following blanks with the proper names：1_ was 16 years of age when he went to work at the whaling station.2_ ordered Clancy to go to the boat as there was a whale out there in the bay.3_ was swimming by the boat，showing the whalers the way.4_ told Clancy that they would return the next day to bring in the body of the whale.5_ was carried by the waves further away from the whalers.6_ knew that Old Tom would protect James.Keys：1.Clancy2.George3.Old Tom4.Jack5.James6.RedStep 5Careful readingStory Part 1Ask students to read Part 1 of the reading passage and find out before the hunt，what did Old Tom do and how did the whalers react?Suggested answers：Old Tom threw itself out of the water，then crashed down again and swam by the boat，showing the whalers the way.One whaler yelled out and George ran ahead of clancy.Clancy raced after him.They jumped into the boat with the other whalers and headed out into the bay.Next，find out during the hunt and after the hunt，what did the killer whales do and how did the whalers react?Suggested answers：A pack of killers are throwing themselves on top of the whales blowhole to stop it breathing；and some others are stopping it fleeing out to sea.The killers started racing between the whalers boat and the whale just like a pack of excited dogs.Within a moment or two，the whales body was dragged down into the depths of the sea.The man in the bow of the boat aimed the harpoon at the whale and then let it go to hit the spot.Ask students to read Part 1 of the reading passage again and put the following sentences into the correct order：aGeorge started beating the water with his oar.bClancy raced after George to the boat.cClancy arrived at the whaling station.dThe killers started racing between our boat and the whale.eClancy heard a huge noise coming from the bay.fClancy was sorting out his accommodation.gClancy ran down to the shore.hThe man in the bow of the boat aimed the harpoon at the whale.Keys：cfegbadhStory Part 2Which was NOT the danger facing James?ABeing washed off the boat.BBeing carried away by rough waves.CA shark out there.DBeing attacked by another killer whale.Key：DStep 6Comprehending1The text is mainly about _.Athe killer whales are easily trainedBthe killer whales can help the whalers catch the huge whalesCthe killer whales kill the whales for their foodDthe killer whales drag the whales under the water2Old Tom throws itself out of the water and then crashes down in order to _.Agive the whalers information about a whaleBtell the whalers it is hungryChelp the whalers catch the whaleDinform the whalers to run away3_ killed the whale at last.AOld TomBThe killer whalesCThe authorDThe whalers4Why did the whalers started turning the boat around to go home after the whale died?ABecause they didnt need a dead whale.BBecause they couldnt find the whales body.CBecause they knew that the dead whale wouldnt float up to the surface for around 24 hours.DThey had to do this because it was too late.5The killer whale protected James by _.Afighting the sharkBkilling the sharkCpreventing the shark going closerDdragging him back6We can infer from the story that_.Athe killer whales may be trained by the whalersBthe killer whales want to help man catch the whales themselvesCthe killer whales need no training for helping the whalersDthe killer whales want to eat the whales after killing themKeys：BADCCAStep 7DiscussionRead the passage and discuss：1What is the relationship between Old Tom and the whalers?2What other animals can help out humans in hunting?Suggested answers：1Old Tom had a strong relationship with the whalers.There was obviously a great deal of understanding and cooperation between them.2There are many other animals that help out humans in hunting such as dogs，cormorants(鸬鸟)，otters(水獭)and ferrets(雪貂)Step 8DebateThe last whaling station in Australia closed in 1978.Whales are now an endangered species and protected by an international ban on whaling，but some countries oppose the ban.In groups discuss the reasons for and against banning whaling.Step 9Learning phrases and sentencesUseful phrases：at the whaling station 在捕鲸站hear of 听说witness it with my own eyes 亲眼目睹sort out my accommodation 整理我的床铺an enormous animal 一个庞然大物throw itself out of the water 猛力跃出水面crash down 坠落call out to sb. 高声对某人说yell out 大声喊叫ahead of 在前面head out into the bay 朝海湾方向驶去circle back 转回来a pack of 一群in the bow of the boat 在船头aim at 瞄准hit the spot 击中要害within a moment or two 片刻之后the depths of the sea 深海中float up to the surface 浮出水面in the meantime 同时 have a good feed on sth. 饱餐一顿wash off 冲走man overboard 有人落水the sea