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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.3a3aWhere shark fin soup is popularNumber of sharks caught and traded every yearhow much the numbers of some kinds of sharks have fallen in the last 20-30 yearsTwo environme
2、ntal groups against finning70 millionover 90 percentWildAid and the WWFPoints in Para 1hear of 听说听说shark fin soup 鱼翅汤鱼翅汤in southern China= in the south of China 在中国南部地区在中国南部地区each time 每当每当a bowl of 一碗一碗Many have heard of shark fin soup. Thisfamous and expensive dish is especiallypopular in southern
3、 China. But do you realizethat youre killing a whole shark each timeyou enjoy a bowl of shark fin soup? Many have 听说听说 鱼翅汤鱼翅汤. This famous and expensive dish is especially popular 在中国的南部地区在中国的南部地区. But do you realize that youre killing a whole shark 每当每当 you enjoy 一碗一碗 shark fin soup?When people cat
4、ch sharks, they cut off theirfins 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 their numbers drop too low, it will br
5、ing danger to all ocean life.Points in Para2cut off 切掉切掉not onlybut also 不仅，而且不仅，而且be harmful to 对对有害有害without a fin 没有了鳍没有了鳍no longer 不再不再at the top of 在在的顶部的顶部the food chain 食物链食物链in the oceans ecosystem 在海洋生态系统中在海洋生态系统中danger 危险危险-dangerous 危险的危险的 When people catch sharks, they 切掉切掉 their fins an
6、d throw the shark back into the ocean. This is 不仅不仅 cruel, 而且而且 对对有害有害 the environment. 没有了没有了 a fin, a shark can 不再不再 swim and slowly dies. Sharks are 在食在食物链的顶部物链的顶部 in the oceans 生态系统生态系统. If their numbers drop too low, it will bring 危险危险to all ocean life. Many believe that sharks can never be end
7、angered because 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 Para2endangered 濒临灭绝的濒临灭绝的in fact 实际上实际上catch-c
8、aught-caughtindustry 工业，产业，行业工业，产业，行业fall-fell-fallen over 90 percent 超过百分之九十超过百分之九十15. in the last 20 to 30 years 在过去的在过去的20到到30年里年里 （用现在完成时用现在完成时） Many believe that sharks can never be 濒濒临灭绝的临灭绝的 because they are the strongest in their food chain. But 实际上实际上, around 70 million sharks are 捕捉捕捉 and
9、traded in this 产业产业 every year. The numbers of some kinds of sharks have 在过去的在过去的20到到30年下降了超过百分之九十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
10、sharks fins. So far, no scientific studies have shown that sharks fins are good for health, so why eat them? Help save the sharks!Points in Para3environment-environmental environmental protection groups 环保组织环保组织such as 例如例如develop laws to stop the sale of shark fins 完善法律来组织预鱼鳍的销售完善法律来组织预鱼鳍的销售so far
11、到目前为止到目前为止 （用现在完成时用现在完成时）scientific studies 科学研究科学研究show-showed-shown/showed 环境保护组织环境保护组织 around the world, 例如例如 WildAid and the WWF, are teaching the public about “finning”. They have even asked governments 完善法律来阻止完善法律来阻止鱼鳍的销售鱼鳍的销售. 到目前为止到目前为止, no 科学研究科学研究 have 表明表明 that sharks fins are good for he
12、alth, so why eat them? Help save the sharks!Lets learn somelanguage pointsharmful 形容词，意为形容词，意为“有害的有害的”。常构成短语。常构成短语be harmful to “对对有害的有害的”。Staying up often is harmful to your health. 经常经常熬夜对你的健康有害。熬夜对你的健康有害。【拓展拓展】harm 名词，意为名词，意为“害处害处”。常用构成短语。常用构成短语do harm to “对对有害有害”，相当于，相当于be harmful to. Too much s
13、moking does harm to his health. = Too much smoking is harmful to his health. 吸烟吸烟过多对他的健康有害。过多对他的健康有害。改为同义句。改为同义句。Reading in the sun does harm to our eyes. Reading in the sun _ _ _ our eyes. is harmful to辨析：辨析：join, join in 和和take part in tojoin加入组织，团体，党派等，有加入组织，团体，党派等，有作为其中的一个成员的含义作为其中的一个成员的含义;后面也可以
14、加表示人的名词，后面也可以加表示人的名词，表示和某人一起参加某活动表示和某人一起参加某活动join in 加入一种具体活动。加入一种具体活动。take aprt in指参加会议或群众性活动等，指参加会议或群众性活动等，着重说明句子主语参加该项活着重说明句子主语参加该项活动并在活动中发挥作用。动并在活动中发挥作用。Will you join us in the discussion? 你参加我们的讨论吗？你参加我们的讨论吗？ She joined the Young Pioneers. 她加入了少先队。她加入了少先队。 Why didnt you join in the talk last ni
15、ght? 昨晚你为什么没参加座谈？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？你参加运动会了吗？1. Have you _ a club? Yes, Im in a swimming club and I often _ the swimming 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 li
16、ke to_ us? Why not? Lets go! A. attend B. join C. join inD. take part in afford是动词，是动词，意为意为“买得起买得起,担负得起担负得起”，通通常与常与can, could, be able to连用连用,多多用于否定句中。用于否定句中。They couldnt afford $50 for a ticket. 他们拿不他们拿不出出50美元买一张票。美元买一张票。 afford后面常跟带后面常跟带to的动词不定式。的动词不定式。We cant afford to go abroad this summer. 今今年夏
17、天我们没有足够的钱出国。年夏天我们没有足够的钱出国。例句：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. affordB. allow C. remind D. pay1. Many people do not realize they are killing a whole shark _they enjoy a bowl of sharks fin
18、 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. sowhen3b3bso althoughif but when Many think that sharks are too strong to be endangered, _ they are wrong. _there
19、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. butAlthoughIf II. 单项选择。单项选择。1. Are you going to _ any of the events? Yes. Maybe long jump and high jump. A.
20、 take part inB. joinC. attend D. join in 2. I cant afford _ him an expensive birthday present. A. to buyB. buyingC. for buyingD. buy 3. Remember to _ the lights when you leave the room. OK. I will. A. turn onB. turn downC. turn upD. turn off 4. The girl always has some money to _ snacks. A. spendB.
21、pay forC. takeD. 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。根据汉语提示完成句子。1. 我们必须采取行动来阻止他们。我们必须采取行动来阻止他们。 We must _ _ to stop them.
22、2. 我从没听说过这个人。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。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。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。实际上，她从没去过那儿。 _ _, she has never been there. In fact take actionheard ofto help outSo far对照对照
23、 解疑解疑 同行同行 water pollution 把把扔进扔进 used to 参与参与 clean up 能，会能，会 cut down 代替代替 be good for 有影响，起作用有影响，起作用 litter/rubbish coal takeaway ugly wooden对照对照 解疑解疑 同行同行l instead ofl Dl C B B B C bottom full of play a part in cleaningup is good for cut down used to go to bed对照对照 解疑解疑 同行同行 C F E B D A try/take action shows/have shown Without turning off trying/taking action