人教版九年級英語下冊 Unit13第2課時 教學(xué)課件PPT初三公開課

1、Unit 13 Were trying to save the earth!Section A 3a-3b初中英語 九年級下冊 RJNew words: shark, fin, cruel, harmful, chain, ecosystem, industry, law, scientificExpressions: be harmful to, at the top of, the food chainLearning goalsSouth China tiger華南虎Crested Ibis朱 鹮Lets look at pictures of endangered animals in

2、 our country.adj. 瀕危的；瀕臨滅絕的Warming upLets look at pictures of endangered animals in our country.Brown Eared-pheasant褐馬雞Panda大熊貓Golden Monkey金絲猴Chiru藏羚羊Lets look at pictures of endangered animals in our country.We should try our best to protect animals.How can we protect them? Discuss in your group.W

3、hat do you know about sharks?Do you think sharks are endangered? Why?What do you think might have caused a fall in the number of sharks?shark n. 鯊魚fin n. （魚）鰭cruel adj. 殘酷的；殘忍的harmful adj. 有害的 chain n. 鏈子；鏈條 ecosystem n. 生態(tài)系統(tǒng)industry n. 工業(yè)；行業(yè)law n. 法律；法規(guī)scientific adj. 科學(xué)上的；科學(xué)的be harmful to 對有害the f

4、ood chain 食物鏈at the top of 在頂部或頂端Read the passage in 3a quickly and answer the questions.What do you know about sharks?Sharks are at the top of the food chain in the oceans ecosystem.Do you think sharks are endangered? Why?Yes, I think sharks are endangered. Because when people catch sharks, they cu

5、t off their fins and throw the sharks back into the ocean. Without a fin, a shark can no longer swim and slowly dies.What do you think might have caused a fall in the number of sharks?People catch sharks and cut off their fins and throw them back into the ocean. Without a fin, a shark dies.Where sha

6、rk fin soup is popularIn southern China.Number of sharks caught and traded every yearAround 70 million.How governments can helpTo develop laws to stop the sale of shark fins.Two environmental groups against “finning”WildAid and the WWF.3a Read the passage about sharks and complete the fact sheet bel

7、ow.Language points1. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.(教材P99 3a)the numbers of. 的數(shù)量“the numbers of. ”是“the number of”的復(fù)數(shù)形式。The numbers of different kinds of flowers are growing quickly.【易混辨析】the number of.與a number of.例詞詞義用法the number of.的

8、數(shù)量“the number of+可數(shù)名詞復(fù)數(shù)” 作主語時，謂語動詞用單數(shù)形式a number of.一些；若干“a number of+可數(shù)名詞復(fù)數(shù)”作 主語時，謂語動詞用復(fù)數(shù)形式。A number of measures have been taken to protect wild animals because the number of them has become smaller and smaller.1. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 3

9、0 years.(教材P99 3a)fall by 下降了“fall by” 意為“下降了”，by表示變化的幅度。fall to意為“下降到”。Last year, the price of this kind of car was 100, 000 yuan. This year it falls to 80, 000 yuan. It falls by 20 percent.WWFWWF (世界自然基金會) 英文全稱為World Wide FundFor Nature,是在全球享有盛譽的、最大的獨立性非政府 環(huán)境保護組織之一。這一國際組織成立于1961年，致力于保護世界生物多樣性、確?？稍?/p>

10、生自然資源的可持續(xù) 利用，以及推動降低污染和減少浪費性消費的行動。迄 今，該組織在六大洲的153個國家發(fā)起或完成了約 12,000個環(huán)保項目。WildAidWildAid (美國野生救援協(xié)會) 是一個非營利性的動物及棲息地環(huán)境保護機構(gòu)，1999年在美國注冊，總部設(shè)在美國舊金山，負責(zé)監(jiān)控和協(xié)調(diào)世界各國各個項目開展 的情況。它在紐約、曼谷、倫敦、華盛頓、北京、海 參崴等地設(shè)有辦事處。這一機構(gòu)的宗旨是世界范圍的 野生動物保護及救助，其重要工作之一是野生動物保 護行動 (ACAP)。3b Read the passage again and fill in the blanks with the wo

11、rds in the box.Many people do not realize they are killing a whole shark _wh_enthey enjoy a bowl of shark fin soup.Sharks are at the top of the food chain, s_oif their numbers drop, the oceans ecosystem will be in danger.Many think that sharks are too strong to be endangered, b_u_tthey are wrong.soa

12、lthoughifbutwhensoalthoughifbutwhenAlt_h_o_u_g_h_ there are no scientific studies to support this,a lot of people believe that shark fins are good for health.Sharks may disappear one day i_fwe do not do something to stop the sale of shark fins.cut off no longernot only but also be harmful tobring da

13、nger to the number of so farFind the phrases and match. hear of不再切掉；切斷 到目前為止 對有害給帶來危險的數(shù)量 聽說不但而且What does the word“they” refer to according to the passage?1. When people catch sharks, they cut off their fins andthrow the sharks back into the ocean.(people)Many believe that sharks can never be endange

14、red becausethey are the strongest in their food chain.( sharks )立法They have even asked governments to develop laws tostop the sale of shark fins.( environment protection groups)Listen and read.Save the Sharks!Many have heard of shark fin soup. This famous and expensive dish is especially popular in

15、southern China. But do you realize that youre killing a whole shark each time you enjoy a bowl of shark fin soup?聽說，相當于hear about切掉；切斷When people catch sharks, they cut off their fins and throwadj.殘酷的；殘忍的the sharks back into the ocean. This is not only cruel, butadj. 有害的be harmful to對有害also harmful

16、to the environment. Without a fin, a shark can不再在頂部或頂端no longer swim and slowly dies. Sharks are at the top of then.生態(tài)系統(tǒng)food chain in the oceans ecosystem. If their numbers droptoo low, it will bring danger to all ocean life. Many believe that sharks can never be endangered because they are thestron

17、gest in their food chain. But in fact, around 70 millionn.工業(yè)；行業(yè)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.在過去的20到30年里， 是現(xiàn)在完成時的標志性 時間狀語之一Environmental protection groups around the world, such a

18、s WildAid and the WWF, are teaching the public about “finning”. They have even asked governments to developn.法律；法規(guī)adj.科學(xué)上的；科學(xué)的laws to stop the sale of shark fins. So far, no scientific到目前為止；迄今為止 是現(xiàn)在完成時的標志性時間狀語之一studies have shown that shark fins are good for health, sowhy eat them? Help save the sha

19、rks!Fill in the blanks according to the passage.Some people like to eat shark fin soup, especially inChina. But getting the shark fin is very cruel . When people catch sharks, they cut off their fins and throw the sharks back into the ocean. The sharks slowly die because they cant swim without fins.

20、 And it is also_h_a_r_m_f_u_l_to the environment. Sharks are at the_t_o_p_ of thefood chain. If the number of sharks drops too low, it will break the balance of the nature. Please say no to eating shark fin soup, and take action to save the sharks!Save the Sharks!提出問題：吃一 碗魚翅羹就是殺 害一整頭鯊魚 (Para.1)shark

21、 fin soup is popular in southern Chinaa bowl of shark fin soup=killing a whole sharkcut off their fins and throw the sharks back into the oceancruel and harmful to the environmentaround 70 million sharks are caught and traded every yearbring danger to all ocean lifethe numbers of some kinds of shark

22、s have fallen by over 90 percent in the last 20 to 30 years分析問題：為什么 要阻止 “獵翅” (Para.2)解決問 題：環(huán) 保組織 號召反 對“獵翅 ”(Para.3)environmental protection groupsno scientific studies have shown that shark fins are good for healthteaching the public about “finning”asked governments to develop laws to stop the sale

23、of shark finsMany have heard (1) _o_fshark fin soup. This famous and expensive dish is especially popular (2) i_nsouthern China. But do you realize that youre killing a whole shark each time you enjoy a bowl (3) o_f shark fin soup?When people catch sharks, they cut off their fins and throw the shark

24、s back (4) in_t_o_ the ocean. This is not only cruel, but also harmful (5) to the environment. Without a fin, a shark can no longer swim and slowly dies.Exercises一、用正確的介詞填空Sharks are (6) a_t_ the top of the food chain (7) in the oceans ecosystem. If their numbers drop too low, it will bring danger (

25、8) t_oall ocean life. Many believe that sharks can never be endangered because they are the strongest (9) i_ntheir food chain.But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers (10) o_f some kinds of sharks have fallen (11) b_yover 90 percent in the

26、last 20 to 30 years.Environmental protection groups (12) _a_r_o_u_nd_/i_n_ the world, such as WildAid and the WWF, are teaching the public (13) _a_b_o_u_t“finning”. They have even asked governments to develop laws to stop the sale (14) o_f shark fins. So far, no scientific studies have shown that sh

27、ark fins are good (15) fo_rhealth, so why eat them?Help save the sharks!environment.3. 如果它們的數(shù)量下降得太多，將會給所有的海洋生物 帶來危險。all ocean life.二、根據(jù)漢語提示完成句子但是每一次當你喝一碗魚翅羹的時候，你意識到你殺 了一整只鯊魚嗎?But do you r_e_a_li_z_e_ that youre killing a whole shark e_a_c_h_t_i_m_e_ you enjoy a_b_o_wl _o_f _ shark fin soup?這種方式不僅殘忍，

28、而且對環(huán)境有害。This is n_o_t_o_n_l_y_c_r_u_e_lthe, b_u_t_a_l_so h_a_r_mfu_l_t_oIf their numbers d_r_o_ptoo l_o_w, it willb_r_in_gd_a_n_g_e_r to很多人以為鯊魚永遠都不會瀕臨滅絕，因為他們是 食物鏈的最強者。Many b_e_li_e_v_e_ that sharks can n_e_v_e_r_be_e_n_d_a_n_g_e_r_e_d_ becausethey are the_s_tr_o_n_g_e_s_t_ in their f_o_o_d_c_h_a_i_n.在過去的20年到30年，某些品種的鯊魚數(shù)量下降了 超過90%。_T_h_e n_u_mb_e_r_s_o_f some kinds of sharks _h_a_v_e_f_a_l_le_n b_yover 90 p_e_r_c_e_n_tin the last 20 to 30 years.finsa_r_e_g_o_o_d fo_rhealth, s