1、Unit13 Were trying to save the earth! 第2课时课件Section A (3a-3b),Read the passage about sharks and complete the fact sheet below.,3a,Points in Para 1 hear of 听说 shark fin soup 鱼翅汤 in southern China= in the south of China 在中国南部地区 each time 每当 a bowl of 一碗,Many have heard of shark fin soup. This famous a
2、nd expensive dish is especially popular in southern China. But do you realize that youre killing a whole shark each time you enjoy a bowl of shark fin soup?,Many have 听说 鱼翅汤. This famous and expensive dish is especially popular 在中国的南部地区. But do you realize that youre killing a whole shark 每当 you enj
3、oy 一碗 shark fin soup?,When people catch sharks, they cut off their fins and throw the shark back into the ocean. This is not only cruel, but also harmful to the environment. Without a fin, a shark can no longer swim and slowly dies. Sharks are at the top of the food chain in the oceans ecosystem. If
4、 their numbers drop too low, it will bring danger to all ocean life.,Points in Para2 cut off 切掉 not onlybut also 不仅，而且 be harmful to 对有害 without a fin 没有了鳍 no longer 不再 at the top of 在的顶部 the food chain 食物链 in the oceans ecosystem 在海洋生态系统中 danger 危险-dangerous 危险的,When people catch sharks, they 切掉 th
5、eirfins and throw the shark back into the ocean. This is 不仅 cruel, 而且 对有害 the environment. 没有了 a fin, a shark can 不再 swim and slowly dies. Sharks are 在食物链的顶部 in the oceans 生态系统. If their numbers drop too low, it will bring 危险to all ocean life.,Many believe that sharks can never be endangered because
6、 they are the strongest in their food chain. But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.,Points in Para2 endangered 濒临灭绝的 in fact 实际上 catch-caught-caught indust
7、ry 工业，产业，行业 fall-fell-fallen over 90 percent 超过百分之九十 in the last 20 to 30 years 在过去的20到30年里 （用现在完成时）,Many believe that sharks can never be 濒临灭绝的 because they are the strongest in their food chain. But 实际上, around 70 million sharks are 捕捉 and traded in this 产业 every year. The numbers of some kinds of
8、 sharks have 在过去的20到30年下降了超过百分之九十.,Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. They have even asked governments to develop laws to stop the sale of sharks fins. So far, no scientific studies have shown that sharks fins are g
9、ood for health, so why eat them? Help save the sharks!,Points in Para3 environment-environmental environmental protection groups 环保组织 such as 例如 develop laws to stop the sale of shark fins 完善法律来组织预鱼鳍的销售 so far 到目前为止 （用现在完成时） scientific studies 科学研究 show-showed-shown/showed,环境保护组织 around the world, 例
10、如 WildAid and the WWF, are teaching the public about “finning”. They have even asked governments 完善法律来阻止鱼鳍的销售. 到目前为止, no 科学研究 have 表明 that sharks fins are good for health, so why eat them? Help save the sharks!,Lets learn some,language points,harmful 形容词，意为“有害的”。常构成短语 be harmful to “对有害的”。 Staying u
11、p often is harmful to your health. 经常熬夜对你的健康有害。 【拓展】 harm 名词，意为“害处”。常用构成短语 do harm to “对有害”，相当于be harmful to. Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸烟过多对他的健康有害。,改为同义句。 Reading in the sun does harm to our eyes. Reading in the sun _ _ _ our eyes.,is har
12、mful to,辨析：join, join in 和take part in,to,Will you join us in the discussion? 你参加我们的讨论吗？ She joined the Young Pioneers. 她加入了少先队。 Why didnt you join in the talk last night?昨晚你为什么没参加座谈？ Did you take part in the sports meet? 你参加运动会了吗？,1. Have you _ a club? Yes, Im in a swimming club and I often _ the s
13、wimming training. A. joined; take part in B. joined; join C. taken part in; join D. taken part in; join in 2. Were going for a picnic. Would you like to_ us? Why not? Lets go! A. attend B. join C. join in D. take part in, afford是动词，意为“买得起,担负得起”，通常与can, could, be able to连用,多用于否定句中。 They couldnt affor
14、d $50 for a ticket. 他们拿不出50美元买一张票。 afford后面常跟带to的动词不定式。 We cant afford to go abroad this summer. 今年夏天我们没有足够的钱出国。 例句：Miss Taylor never wastes money on anything too expensive, even though she can _to. She has donated much of the money she saved to charities. A. afford B. allow C. remind D. pay,1. Many
15、 people do not realize they are killing awhole shark _they enjoy a bowl of sharksfin soup. 2. Sharks are at the top of the food chain, _ if their numbersdrop, the oceans ecosystem will be in danger.,Read the passage again and fill in the blanks with the words in the box.,so,when,3b,Many think that s
16、harks are too strong to be endangered, _ they are wrong. _there are no scientific studies to support this, a lot of people believe that shark fins are good for health. 5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins.,but,Although,If,II. 单项选择。 1. Are you going
17、to _ any of the events? Yes. Maybe long jump and high jump. A. take part in B. joinC. attend D. join in 2. I cant afford _ him an expensive birthday present. A. to buy B. buyingC. for buying D. buy 3. Remember to _ the lights when you leave the room. OK. I will. A. turn on B. turn downC. turn up D.
18、turn off,4. The girl always has some money to _ snacks. A. spend B. pay forC. take D. cost 5. Look! _ boys are playing on the playground. Yes. _ them is about 200. A. The number of; A number of B. The number of; The number of C. A number of; the number of D. A number of; A number of,III. 根据汉语提示完成句子。
19、 1. 我们必须采取行动来阻止他们。We must _ _ to stop them. 2. 我从没听说过这个人。I have never _ _ such a man. 3. 我们乐意尽力帮你摆脱困境。We are glad to do what we can do _ _ _. 4. 到目前为止，我已经交了二十个朋友。_ _, I have made twenty friends. 5. 实际上，她从没去过那儿。_ _, she has never been there.,In fact,take action,heard of,to help out,So far,对照 解疑 同行,wa
20、ter pollution 把扔进 used to 参与 clean up 能，会 cut down 代替 be good for 有影响，起作用,litter/rubbish coal takeaway ugly wooden,对照 解疑 同行,instead of DC B B B C,bottom full of play a part in cleaningup is good for cut down used to go to bed,对照 解疑 同行,C F E B D A,try/take action shows/have shown Without turning off trying/taking action,对照 解疑 同行,A BB C D D C,environmental reusable watch help,
