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1、unit 9 saving the earth(人教版高二英语上册教案 教学设计)Lesson 34(the first period)PART 1 Understanding of the teaching materialSTATUS AND FUNCTION1. This unit is about pollution. It is a focus of the whole world. This lesson is the second one of Unit 9. It is a passage about some serious problems the earth has. I
2、t is related to our daily life.2. This lesson is very helpful for the Ss to improve their reading comprehension ability and spoken English.TEACHING AIMS AND DEMANDSKnowledge objects1. To make the Ss know that now the earth has a lot of serious problems and people are causing a lot damage to the eart
3、h. And if people don t stop polluting the word and pay more attention, the whole situation will be more and more serious.2. To give a reinforced practice in the use of the past participle and some useful expressions, such as be fit for;turn into;in place and so on.Ability objects1. Make the Ss the r
4、eal masters in class while the teacher himself acts as the director2. Train them with some effective learning methods to optimize the students learning results.3. To improve their reading comprehension ability.4. To improve their written English.Moral objects1 .Enable the students to love our earth
5、and the nature.2 .Encourage the students to do something to save and protect the earth and our environment.TEACHING AIDS:computer; OHP (overhead projector);software: PowerPointTEACHING KEY POINTS1. Input the passages as a wholeMake the Ss grasp and understand the general idea of thepassages as a who
6、le.2. Language communicationA. Tell the main idea of the passagesB. Practise the main idea of the passagesC. tell their own stories related to the daily lifeTEACHING DIFFICULTIES1. The general idea of the passages especially the causes and results of different problems2. Telling their stories about
7、pollution3. Thinking of some ways to save and protect our earth especially in our daily lifePART 2 Teaching MethodsFive Steps Method,Communicative Method.Aural-oral Method with the help of the computer* A lot of pictures and short videos about the causes and results of the three problems mentioned i
8、n this lesson will be shown on the screen with the help of the computer.PART 3 Studying Ways1. Teach the Ss how to be successful language learners.2. Teach the Ss how to master the general idea and structure of a passage by reading it .3. Teach the Ss how to write similar stories according to what t
9、hey ve learnt in this lesson.PART 4 ProcedureStep 1 RevisionCheck the homework exercisesStep 2 Lead-in1. A song about the topic we 11 learn today.“Earth song “ by Michael Jackson (Because it is too long , play it before the class begins.)2. Some pictures, (show them to the Ss on the screen)Picture 1
10、: an earth with a smiling face (she used to be happy)Picture 2: an earth with a crying face (she is sad now)And ask the Ss why she is sad now.3. Some more pictures in pairs as comparison .Pair 1: the sea used to be clean and the beach is beautiful but now they are seriously polluted.Pair 2:green gra
11、ss and thick forests but now only deserts leftPair 3: the sky was blue and clear but now there are a lot of smoke in it and it is no longer blue and clear.4. Some short videos about different kinds of problems the earth has, including the three mentioned in the lesson - earth problem , air pollution
12、, and water pollution.Step 3 PresentationThe teachers brief introductionToday we will deal with the three most serious problems the earth has earth problem , air pollution, and waterpollution.1. Pre-reading silentlyGive the Ss a few minutes to go through the passage as quickly as possible and try to
13、 find out the causes and results of the problems.2. while-readingPassagel:a. Show the Ss a picture and ask what can be found in it.(The area of the desert of the world is very large and it is growing every year.)b. a short video about desertc. Question: What are the causes of the problem?Show some p
14、ictures to help the Ss to answer the question too many cattle eat all the grass nothing can grow trees be cut down no trees left to holdblow ；wash Passage2:a. Show the Ss the following pictures.b. Questions : What can you see in the pictures?Why do these things happen?c. a short video about chemical
15、 raind. Ask the Ss to explain the causes and results of chemical rain according to the video and with the help of the following pictures.how does chemical rain form?smoke from factories smoke from carse. another reason for air pollution serious accidentAsk the Ss to tell the stories about the two mo
16、st serious accidents.Passage3:a. Show the Ss two pairs of pictures.Pair 1: One is a picture of a beautiful beach and people are enjoying the sunshine on it; while the other is of the polluted sea.Pair 2 : In one of them there are a lot of fish in the river; in the other one there is nothing in the w
17、ater but rubbish flowing here and there.b. Give the Ss a few minutes to find the reasons/c. Show some pictures to help them.Waste from factory waste form citiesd. Another reason for water pollution - accidentsShow them the picturea sinking oil tankertell the story mentioned in the passage.3. after-r
18、eading1 . Summarize the passage . Fill in the following form.Fact causes resultsEarth problemAir pollutionWater pollution2 .Choose the best answers.4. Fill in the blanks.Step 4. Furthre discussion1. Ask two students to tell their stories . (ask each of them to get ready for one before the class.)2.
19、Think of the question : Are we causing damage to the earth?3. What should we do or what should we pay attention to in order to protect and save our earth?4. Collect their answers and form a propose as following.A PROPOSAL1) Don t use one-off chopsticks , lunch-boxes and cups.2) Don, t use paper tiss
20、ue when you sneeze, use handkerchief instead.3) . Don t send post-cards. Send electronic cards by e-mail.4) . Don t throw rubbish at will.5) . Don t make a lot of noise.6) . Don t waste water7) . Don t waste electricity.8) . Don t destroy trees and grass.Step 5 HomeworkWrite a letter文档内容到此结束，欢迎大家下载、修改、丰富并分享给更多有 需要的人。