1、安徽省滁州市第二中学高中英语 Unit22 Environmental Protection The Sixth Period Lesson 3 Natural Disasters (I)教案 北师大版选修 8Teaching goals教学目标1. Target language目标语言 a. 重点词汇和短语 typhoon, grand, scale, changeable, thunderstorm, rainfall, irrigation, arm, rough, quake, offshore, catastrophe, separation, means, construct,
2、shabby, clay, brick, slip, slide, mountainous, howl, flee, potential, roll, result in, earn ones livingb. 重点句子 Nature is turning on us!A number of nations have already been in armed conflict over water, and reduced rainfall in the west of the US has resulted in huge forest fires.2. Ability goals能力目标
3、 Enable students to complete texts with sentence gaps.Enable students to use the vocabulary of natural disasters.3. Learning ability goals 学能目标 Help students to learn about reading strategies for completing texts with sentence gaps.Teaching important points教学重点Completing texts with sentence gapsPrac
4、ticing using the vocabulary of natural disastersTeaching difficult points 教学难点Reading strategies: Completing texts with sentence gaps.Teaching methods教学方法 Reading, explaining, practicingTeaching aids教具准备The multi-computerTeaching procedures & ways教学过程与方式Step I Leading inBy doing a quick quiz about d
5、isaster stimulate students interest in the topic: Natural Disasters.T: T: Good morning /afternoon, class!Ss: Good morning/ afternoon, Mr. /MsT: Who would like to list some disasters?Ss: Droughts, earthquakes, floods, forest fires, hurricanes, landslide, tsunamis, typhoons, volcanic eruptions, T: Goo
6、d. (Show the following on the PowerPoint.) Please look at the following and do the quiz and see how much you know about disasters. It doesnt matter whether your answers are wrong or correct. Try to learn something from the quiz.1. Which one is NOT a natural disaster?FloodTornadoHurricaneBreaking you
7、r legEarthquakeWildfire2. What is the name of floods that happen very quickly?Flashfloods (a sudden local flood of great volume and short duration)Quick floodsFlood n fastWaterworld3. True or false: Its OK to touch and drink flood waters.TrueFalse4. What is an earthquake?The Turtle TaleShaking, roll
8、ing or a sudden shock of the earths surfaceHigh winds and seasSame as electrocution5. What should you do during an earthquake?Run outsideGet in bedDrop and coverTake a vacation1. What is an aftershock?Static electricityA candy barA new shoe by NikeA smaller earthquake that follows the main earthquak
9、e7. Tornadoes have what kind of a shape?FunnelSquareHeart-shapedRed8. If a tornado is coming, what should you do?Drive awaySeek shelter underground if possible or in a room on the first floor without windowsGo swimmingFly a kite9. How many hurricane categories are there?TwoSevenFiveTen10. When is th
10、e official hurricane season?June 1 to November 30First week of schoolAll year199611. What is good protection for windows during a hurricane?Masking tapeOld Halloween masksStorm shuttersGlue12. True or false: During a fire, you should stay low to the ground where there is less smoke.TrueFalse13. If y
11、ou go out in the cold, you should dress in:Bathing suitLayersHula skirtAluminum foil14. What is a tsunami?A series of waves that follow an underground disturbanceA kind of raw tunaA type of Asian self defenseA disaster involving tainted sushi15. If you live near a volcano what special items should y
12、ou have in your family disaster supply kit?Swim trunksComic booksGoggles and throw-away breathing maskSpecial lava shields16. True or false: You can walk faster than a mudflow.TrueFalseSuggested answers:1. Breaking your leg 2. Flashfloods 3. False 4. Shaking, rolling or a sudden shock of the earths
13、surface 5. Drop and cover 6. A smaller earthquake that follows the main earthquake 7. Funnel 8. Seek shelter underground if possible or in a room on the first floor without windows 9. Five 10. June 1 to November 30 11. Storm shutters 12. True 13. Layers 14. A series of waves that follow an undergrou
14、nd disturbance 15. Goggles and throw-away breathing mask 16. FalseT: Which of the disasters do you think are: caused by people? made worse by people? natural?Please discuss in groups first. Then scan the text to see if your answers are correct. Dont worry about the gaps. Try to scan the information
15、you need.After students finish scanning the information they need, show the suggested answers on the PowerPoint.Suggested answers:caused by people forest firesmade worse by people hurricanesnatural droughts, earthquakes, floods, forest fires, hurricanes, landslide, tsunamis, typhoons, volcanic erupt
16、ions Step III Reading StrategiesRead to learnBefore dealing with reading, ask students to read the reading strategies individually and teachers explains the strategies to students. T: In this class we are going to learn Lesson 3. Before reading the text, lets learn the reading strategies: Completing
17、 texts with sentence gaps. Please read the strategies aloud.After learning the reading strategies, ask students to skim the text and do Ex3 on Page 10.Step IV Reading Deal with Ex3.Ask students to work individually, reading the text and using the strategies to complete the gaps in the text. Remind s
18、tudents there are two extra sentences that they do not need. Six minutes later check the answers with the whole class.Deal with Ex4.Ask students to read the text carefully and answer the questions in Ex 4 on Page 11. Students may compare their answers to the other group members. Then check the answe
19、rs with the whole class.SummaryT: From the text we learn that nature is turning on us. The last few years have seen environmental disasters on a grand scale, and experts are predicting far worse to come. In the text Jin Li explains why nature is beginning to turn on us.Step V ExplanationDuring this
20、procedure Teacher will play the tape for students. Students will underline the difficult sentences. After listening to the tape, Teacher will explain the text and deal with language problems. T: Now we will deal with some difficult language focuses. Now I will play the tape for you. Please make mark
21、s where you have difficulties.After listening to the tape, explain the difficult sentences to students. Before explaining the difficult points, students are asked to refer to the notes to the text on Pages 114-115. T: After we learn the text, Id like you to explain the title “Nature is turning on us
22、”.S1: “turn on” means “become hostile towards”. From the text we learn that because of human activities, there have been climate changes and many natural disasters have brought great damages. Human beings have been punished for what they have done to the environment/ nature.T: Who will give us some
23、examples with the phrase “turn on”?S2: His normally placid (good-tempered) dog turned on him and bit him in the leg.S3: Why are you all turning on me (ie criticizing or blaming me)? S4: I tried to help her stand up but she turned on me, shouting Get off, you bitch!.T: Good! Do you have any difficult
24、ies with the text？S1:Could you please explain the sentence to us： A large number of nations have already been in armed conflict over water, and reduced rainfall in the west of the US has resulted in huge forest fire.T: As we know, many parts of the world are becoming drier. In order to get water, so
25、me nations even fight each other using arms. Because there isnt enough rainfall, there are many forest fires in the west of the US. In the sentences, there are several phrases “armed conflict”, “a number of” and “result in”. Please look at some examples on the PowerPoint.(Show the following on the P
26、owerPoint.)1. In the last decade, 2 million children have died as a direct result of armed conflict. At least 6 million children have been permanently disabled or seriously injured and more than 1 million children have been orphaned or separated from their families due to armed conflict.2. Quite a n
27、umber of (Many) world famous paintings are on show in this exhibition.A number of (A lot of) cables are needed in this project.3. A diet with no exercise is bad for the health, because it will result in a loss of both fat and muscle tissue.Stress and tiredness often result in a lack of concentration
28、.T: Do you have any other questions?Ss: No.T: If you dont have any other questions, please sum up the phrases and useful expressions in the text. Then we will deal with the vocabulary exercises.Step VI PracticeDeal with Ex5 on Page 57.Ask students to match the definitions (a-i) with the phrasal verb
29、s in italics in the sentences (1-9). Students do the exercises individually. Three minutes later, check the answers with the whole class.Deal with Ex 4 on Page 57.Step VII Homework 1. Learn more about natural disasters and how to protect the environment.2. Finish Ex1 in Word Power on Page 62.3. Finish Focus on Reading exercises.
