林素芬教案 选修七 Unit 3 Period 7 Listening Task，Talking and Writing
Teaching aims 1． Students will be able to find out the reasons why the population of sharks decreases sharply. 2．Students wil
l be able to express opinions with the polite expressions like： I don't think it is wise to... It would be better if we... It is a good idea to... I suppose it is right... I wonder if... 3． Students will be able to persuade the local government to protect wildlife in a polite way. 4. Arouse the students awareness of protecting wildlife and let them know it is their responsibility to protect our earth. Teaching procedures ?Step 1 Before listening Show students a picture of shark and tell them a fact that shark populations are decreasing rapidly. ?Step 2 During listening Task 1：Tell students Jordon Davies is interviewing the shark expert Don James about the sharks' situation.First read the statements below.Then listen and number these statements in the order that they hear them. □Shark populations grow at a very slow rate. □A lot are killed because of modern fishing technology. □Governments should take action so that the fishing of sharks is slowed down. □Shark attacks get a lot of attention in the news. □Shark populations are decreasing at a serious rate. □Some species need to be protected. □The chance of being bitten by a shark is actually very small. □Millions of sharks are killed each year. Keys：the order：7 4 8 1 5 6 2 3 Task 2：Listen again and answer the following questions： 1．Should people be afraid of swimming in the sea? 2．How many people are killed by sharks each year? 3．Do sharks or people need to be protected？Why? 4．Why are so many sharks being killed? 5 ． Why does the shark's biology affect shark populations ？ Complete the sentences blow. A：Age for reproducing young _________________________________________________________________ _______
B：Time for the young to develop _________________________________________________________________ _______ C：Number of young _________________________________________________________________ _______ 6．How long have shark species been in existence? 7． What does Don think will happen if we don't slow down the fishing of sharks? Suggested answers： 1．No. 2．Only a few. 3．Sharks need to be protected as millions are killed each year by human beings， whereas only a few human beings are killed each year by sharks. 4 ． Sometimes they are killed by accident and sometimes on purpose.For example，shark fin soup is a delicacy in some Asian countries. 5．15 years；14 months；7－9. 6．400 million years. 7．Don thinks that many shark species will not be able to survive. ?Step 3 Post－listening(talking) Ask students to make up a dialogue according to the situation below. Suppose you were a citizen in a coastal city in China，shark hunt is a serious problem in your province.Try to persuade the local government to take action to protect wild life in a polite way with the help of the following expressions： I don't think it is wise to... It would be better if we... It is a good/wise idea to... I suppose it is right... I wonder if... Why not... We'd better... ?Step 4 Homework Write a persuasive letter to the local government to control the improper hunts.
高二学生对这个新鲜话题普遍很感兴趣，积极性也比较高，但大部分学生对新学的单 词词汇还是比较生疏，运用英语进行交际的能力还是比较薄弱的，因此教师可以利用丰富 多彩的图片资源，在任务型教学下完成本课题的学习。班级里的学生水平参差不齐，有些 差距还是比较大的，因此在教学过程中，布置的任务要兼顾各个层次的学生，使他们通过 听、说、读、写都有所获。
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