unitWe are trying to save the earth SectionA ab 時PPT課件
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1、 Read the passage about sharks and complete the fact sheet below.3a3a第1頁/共42頁Many have heard of sharks fin soup. Thisfamous and expensive dish is especiallypopular in southern China. But do you realizethat youre killing a whole shark each timeyou enjoy a bowl of sharks fin soup?When people catch sha
2、rks, they cut off theirfins and throw the shark back into the ocean.第2頁/共42頁 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
3、 bring danger to all ocean life. Many believe that sharks can never be endangered because they are the strongest in their food chain. 第3頁/共42頁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
4、 the last 20 to 30 years.第4頁/共42頁 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 go
5、od for health, so why eat them? Help save the sharks!第5頁/共42頁Where 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 environmental groups against finningsouthern China 70 millionover 90 percentWil
6、dAid and the WWF第6頁/共42頁Lets do this to review the text ! Some people like to eat sharks fin soup, especially in _China. But getting the s harks fin is very _. When people catch sharks, they _ _their fins and throw the sharks into the ocean. The shark slowly dies because it cant _ without the fin. A
7、nd it is also _ to environment. Sharks are at the _ of the food chain. If the number of sharks drops too low, it will break the balance of nuture. Please say no to eating the shark fin soup, and take action to save the sharks! southern cruel cut off swim harmful top第7頁/共42頁Lets learn somelanguage po
8、ints第8頁/共42頁harmful 形容詞,意為“有害的”。常構(gòu)成短語be harmful to “對有害的”。Staying up often is harmful to your health. 經(jīng)常熬夜對你的健康有害。【拓展】harm 名詞,意為“害處”。常用構(gòu)成短語do harm to “對有害”,相當(dāng)于be harmful to. Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸煙過多對他的健康有害。第9頁/共42頁改為同義句。Reading in th
9、e sun does harm to our eyes. Reading in the sun _ _ _ our eyes. is harmful to第10頁/共42頁辨析:join, join in 和take part in tojoin加入組織,團體,黨派等,有加入組織,團體,黨派等,有作為其中的一個成員的含義作為其中的一個成員的含義;后面也可以加表示人的名詞,后面也可以加表示人的名詞,表示和某人一起參加某活動表示和某人一起參加某活動join in 加入一種具體活動。加入一種具體活動。take aprt in指參加會議或群眾性活動等,指參加會議或群眾性活動等,著重說明句子主語參加該項
10、活著重說明句子主語參加該項活動并在活動中發(fā)揮作用。動并在活動中發(fā)揮作用。第11頁/共42頁Will you join us in the discussion? 你參加我們的討論嗎? She joined the Young Pioneers. 她加入了少先隊。 Why didnt you join in the talk last night? 昨晚你為什么沒參加座談?Did you take part in the sports meet? 你參加運動會了嗎?第12頁/共42頁1. Have you _ a club? Yes, Im in a swimming club and I of
11、ten _ 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 like to_ us? Why not? Lets go! A. attend B. join C. join inD. take part in 第13頁/共42頁 afford是動詞,意為“買得起,擔(dān)負得起”,通常與can, could, be able to連用,多用于否定句中。
12、They couldnt afford $50 for a ticket. 他們拿不出50美元買一張票。 afford后面常跟帶to的動詞不定式。We cant afford to go abroad this summer. 今年夏天我們沒有足夠的錢出國。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
13、 D. pay第14頁/共42頁1. Many people do not realize they are killing a whole shark _they enjoy a bowl of sharks fin 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. sowhe
14、n3b3bso although if but when 第15頁/共42頁3.Many think that sharks are too strong to be endangered, _ they are wrong. 4._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
15、 of shark fins. butAlthoughif 第16頁/共42頁3 3a aMany have heard of sharks fin soup. This famous andexpensive dish is especially popular in southern China. 1) hear 為及物動詞,“聽到”,表結(jié)果。e.g. I can hear you clearly.我能清楚聽到你說的話。2) hear of hear about hear about和 hear of “聽別人說”??苫Q,hear about“聽到的詳細” 聽到的內(nèi)容更詳細一些,hear
16、 of (指間接的聽到)聽別人說起或提及e.g. No one in the town had heard of him.e.g. Have you heard of / about the accident?第17頁/共42頁3) hear from 一般后接 sb. 指“收到來信”。e.g. Have you heard from Jim?你收到吉姆的來信了嗎?第18頁/共42頁But do you realize that youre killing a wholeshark each time you enjoy a bowl of sharks finsoup?第19頁/共42頁Wh
17、en people catch sharks, they cut off theirfins and throw the shark back into the ocean.第20頁/共42頁This is not only cruel , but also harmful to theenvironment.&.harmful (adj)“有害的,不利的”常用短語be harmful to sb /sth “對某人、某物有害”e.g. The air pollution is harmful to our health?空氣污染對我們的健康有害e.g. Dont you think smok
18、ing is harmful tohealth?難道你不認為吸煙有害健康嗎?第21頁/共42頁Sharks are at the top of the food chain in the oceans ecosystem. 第22頁/共42頁If their numbers drop too low, it will bring danger to all ocean life. 第23頁/共42頁Many believe that sharks can never be endangered because they are the strongest in their food chain
19、. 第24頁/共42頁But in fact, around 70 million sharks are caught and traded in this industry every year. &.70 million “七千萬”million數(shù)詞“百萬”用法與數(shù)詞hundred“百”thousand“千”billion“十億”1)與具體數(shù)字連用,用單數(shù)two hundred兩百 three million 三百萬2) 當(dāng)表示不確定的泛指數(shù)目時,要用復(fù)數(shù),且后接介詞of 如hundreds of “數(shù)以百計的,成百上千的”thousands of “數(shù)發(fā)千計的,成千上萬的”million
20、s of “數(shù)百萬的”第25頁/共42頁e.g. There are hundreds of books on the desk.桌子上有幾百本書e.g. The sun was shining .Thousands of people were lying on the beach. 陽光燦爛,數(shù)以千計的人躺在海灘上第26頁/共42頁&.industry (n)“工業(yè)” industrial(adj)“工業(yè)的” e.g. New industries are springing up in Asia.新工業(yè)正在亞洲興起第27頁/共42頁The numbers of some kinds of
21、 sharks have fallen by over 90 percent in the last 20 to 30 years.&.some kinds of 固定短語,后跟名詞“幾種”e.g. He has some kinds of fishes at home.他家里養(yǎng)著幾條魚&.kind 短語1)Kind of + 形容詞“有點”相當(dāng)于a little/ a bit/ a little bit.e.g. Im kind of hungry.我有點餓了2) many kinds of +名詞“很多種”,this/ that kind of +名詞“這/那一種” e.g. This k
22、ind of film is not popular.這種電影不受歡迎第28頁/共42頁3) all kinds of +名詞“各種各樣的”e.g. She likes all kinds of flowers.她喜歡各種各樣的花。4)different kinds of +名詞“不同種類的”e.g. There are different kinds of books in the bookshop.這家書店里有各種不同種類的書籍5) be kind to sb “對某人友好”相當(dāng)于 be friendly to sb e.g. We must be kind to wild animals
23、 in order to protect them.我們必須友好對待野生動物,這樣才能保護它們。6) a kind of “一種”e.g. An apple is a kind of fruit.蘋果是一種水果第29頁/共42頁 Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. 第30頁/共42頁So far, no scientific studies have shown that sharks fin
24、s are good for health, so why eat them? Help save the sharks!第31頁/共42頁Two environmental groups against finning&.against (prep)“反對,對著,違反”后接動詞ing 作賓語be against“反對”反義詞組:be for “支持”e.g. We are all against his idea.我們都反對他的想法e.g. He spoke against the new law.他發(fā)言反對新法律e.g. Im against doing anything till the
25、 police arrive.我反對在警察來之前采取任何行動第32頁/共42頁3 3b bSharks are at the top of the food chain, ,so if their numbersdrop, the oceans ecosystem will be in danger.第33頁/共42頁Many think that sharks are too strong to beendangered, but they are wrong.第34頁/共42頁練習(xí)題練習(xí)題第35頁/共42頁I. 用方框中詞的適當(dāng)形式完成下面的句子。(1) I think its _ to
26、make such a young boy work all day. (2)The poor fisherman cant _ his childrens education. (3) I think the government must develop _ to protect environment. (4) Eating too much junk food is _ your health. (5) He can use different _ to work out the problem. method, cruel, harmful, afford, lawcruelaffo
27、rdlawharmfulmethod第36頁/共42頁II. 單項選擇。1. Are you going to _ any of the events? Yes. Maybe long jump and high jump. A. 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.
28、 OK. I will. A. turn onB. turn downC. turn upD. turn off 第37頁/共42頁4. The girl always has some money to _ snacks. A. spendB. 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
29、 number of D. A number of; A number of 第38頁/共42頁III. 根據(jù)漢語提示完成句子。1. 我們必須采取行動來阻止他們。 We must _ _ to stop them. 2. 我從沒聽說過這個人。 I have never _ _ such a man. 3. 我們樂意盡力幫你擺脫困境。 We are glad to do what we can do _ _ _.4. 到目前為止,我已經(jīng)交了二十個朋友。 _ _, I have made twenty friends. 5. 實際上,她從沒去過那兒。 _ _, she has never been there. In fact take actionheard ofto help outSo far第39頁/共42頁Homework 1. Review the new words and expressions.2.Practice the conversation in 2d.第40頁/共42頁第41頁/共42頁感謝您的觀看。第42頁/共42頁
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