英語人教版九年級全冊Unit 13 Stion A .doc

Unit 13 Were trying to save the earth 一、 教材分析 本單元帶領(lǐng)學(xué)生了解了一些有關(guān)地球污染，動物瀕危等問題。并且教給大家如何保護(hù)瀕危動物，如何通過回收利用等方式來保護(hù)地球。本單元分為section A and section B 兩個部分。本課為第一課時帶領(lǐng)大家了解地球污染問題，以及探討如何保護(hù)地球，減少污染。二、 三維目標(biāo) (一) 知識與技能 1. To learn the following words and expressions.bottom, coal, public, ugly, cost, advantage, method, cruel, harmful, afford.2. To understand the pasage on Page 99.(二) 過程和方法 3.To get a general knowledge of pollution by reading and role-play. 4. To know about how to reduce pollution through discussion. (三) 情感態(tài)度和價(jià)值觀 5. After learning this part, every student will be aware of the serious situation of pullution and determined to take action to protect our earth fron now on.三、 教學(xué)重點(diǎn) 1. How to use the following words and expressions: cost, advantage, harmful, afford, used to, play a part in 2. to understand the passage on Page 99.四、 教學(xué)難點(diǎn) 1. How to use the following words and expressions: cost, advantage, harmful, afford, used to, play a part in 2. to understand the passage on Page 99.五、 教學(xué)策略 根據(jù)本課教學(xué)目標(biāo)和重點(diǎn)內(nèi)容，教師可采用聽，讀，小組討論，角色扮演等活動來引導(dǎo)學(xué)生進(jìn)行學(xué)習(xí)。六、 教學(xué)準(zhǔn)備 ppt， recorder， mutiple-media七、 教學(xué)環(huán)節(jié)1、 課堂導(dǎo)入 Step 1 Lead-in1) Show some pictures about pollution and ask students to discuss whats the danger of each kind of pollution.2) Here are some words are related to different kinds of pollution. Write them in the box below, and you can add more words.loud music, littering, building houses, cars, ships, mobile phones, rubbish, factories, planes, smoking.Air pollution Noise pollutionWater 3) Role-play the following conversation and make your own conversations about the kinds of pollution above.A: The river was dirty. Even the bottom of the river is full of rubbish.來源:學(xué)*科*網(wǎng)B: But it used to be so clean.A: Yes, but people are littering in the river.B: Everyone in the town should play a part in cleaning it up.2、 課堂講授Step 2. Reading 1) Fast-reading Now turn to page 99 and read the page quickly to find answers to the sheet.QuestionsAnswersWhere sharks fin soup is popularSouthern ChinaNumbers of sharks caught and traded every year70 millionHow much the numbers of some kinds of sharks have fallen in the last 20-30 years.over 90 percentTwo environment groups which are against finningWildAid and the WWF2) careful-reading Read the passage again and fill in blanks.so, although, if but, when Many people do not realize they are killing a whole shark _ they enjoy a bowl of sharks fin soup. Sharks are at the top of the food chain, _ if their numbers drop, the oceans ecosystem will be in danger. Many think that sharks are too strong to be endangered, _ they are wrong. _ there are no scienfitic studies to support this, a lot of people believe that sharks fins are good for health. Sharks may disappear one day _ we do not do something to stop the sale of sharks fins.Possible answers: when, so, but, although, if3) Studying useful words and expressions. cost v價(jià)錢為，花費(fèi) n.價(jià)錢，代價(jià)；花費(fèi)，費(fèi)用 The cost of a loaf of bread has increased five-fold. 一條面包的價(jià)錢增長了4倍。Badges are also available at a cost of 2.50. 徽章也有賣的，2.5英鎊一枚。Its going to cost me over $100,000 to buy new trucks.買幾輛新卡車將花掉我10萬多美元。 harmful adj.對有害的；能造成損害的；不利；不良Smoking is harmful to our health.吸煙對人類的健康有害。 used to do過去一向，過去時常，過去曾（而現(xiàn)在不再）做Who used to do your laundry? 誰過去一直為你洗衣服？She used to wash dishes in a restaurant.她曾經(jīng)在餐館里洗過盤子。 afford vt.買得起；擔(dān)負(fù)得起；提供；給予We couldnt afford to buy a new car. 我們買不起新的車。We cant afford to wait. 我們等不起。My parents cant even afford a new refrigerator.我父母甚至買不起一臺新冰箱。 play a part in扮演某角色; 與有關(guān)，對有影響Id like to play a part in their discussion. 我愿意參與他們的討論。Education is playing a big part in environmental protection.教育在環(huán)境保護(hù)中起著很大作用。He played a part in his favorite TV show.他在他最喜歡的電視節(jié)目中扮演了一個角色。3、 課堂練習(xí)Step 3 ExercisesTranslate the following phrases:1. 對有害2. 買得起.3. 在中起作用4. 過去常常5. 解決問題6. 起作用7. 聽說8. 在頂部9. 在底部10. 切下，割下4、 課堂活動Step 4 Activities In your group make a list of things people can do to help the environment.5、 課堂小結(jié)Step 5. SummarizeLook back on what we have learned.來源:Zxxk.Com1. How to protect environment.2. Useful languages : be harmful to, at the top of, at the bottom of. Solve problems6、 作業(yè)布置Homework : make a conversation with your parnter about what you can do to reduce pollution.八、 板書設(shè)計(jì)來源:學(xué)_科_網(wǎng) Unit 13 Were tryin