Unit-5--The-Power-of-Nature-(单元)教案--(人教版选修6)

1、Unit 5 The Power of Nature （单元）教案 （人教版选修6）Period 1 Warming up and readingTeaching goals：1 To have the students get a general idea of natural disasters.2 To help the students develop speaking ability.3 To improve the students reading abilities.4 To help the students to know how to summarize a text or

2、 a paragraph.Step1 Warming up 1. Ask students to list other natural disasters, such as hurricane,earthquakes, volcano, etc. Show the pictures of these natural disasters.2. Introduction to volcano Volcano is one of these natural disasters. We should also do something to avoid its eruption or reduce i

3、ts damage to us. What do you know about volcanoes? How is a volcano formed? How does a volcano erupt?3. Discuss about the measures that we should take to avoid natural disasters. We can find how powerful nature is and how weak humans are compared with a volcano, hurricane, earthquake or other natura

4、l disasters. But we are not completely powerless. We can take measures to protect ourselves from powerful natural forces. What measures should we take?Step2 Pre-reading If we can predict the eruption of volcanoes, we can reduce its damage to us. So we need volcanologists to study volcanoes. Do you w

5、ant to be a volcanologist? Why? If you are a volcanologist, what kind of danger will you meet? （what kind of work should you do）Lets learn something about volcanologists in the text.Step 3 Skimming1. Read through the passage quickly and find out the answers to the questions.What kind of things shoul

6、d a volcanologist do?What is the volcanologist wearing when getting close to the crater?2. Divide the passage into several parts and find out the main idea of each part.Step 4 ScanningScan the passage . Read the passage carefully and answer the following questions.1. Why is a volcanologists job impo

7、rtant?2. Where is Mount Kilauea?3. Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?4. What caused the writers bedroom to become as bright as day even though it was night?5. Why did the scientists have to get close to the volcano after it began erupting?6. Why was

8、it difficult for the writer to walk towards the edge of the crater?7. What does the writer find impressive about volcanoes even after studying them for 20 years?Step 5 DiscussionT1 Do you think it is an occupation you would enjoy? Discuss your reasons with your classmates.T2 InterviewMake up an inte

9、rview. Four students as a group. One student acts as the writer of the passage. The other three students act as the journalists from three different TV stations.Step 6 Homework:Spend some time researching one disaster. You can use books, magazines, newspapers or the Internet. Collect pictures and di

10、agram and look for information about: what causes this kind of disaster actual events that happened in the past in china and/or the rest of the world how people helped the victims what is being done to prevent the disaster happening again or to lessen the damagePeriod 2 Learning about LanguageTeachi

11、ng goals：1. To help the students to learn how to use words and expressions.2. To review the V-ing form and learn the perfect V-ing form.Step 1 Discover useful words and expressions1. Show the video of an episode of Vesuvius eruption and ask students to fill in the text with proper words.The eruption

12、 of Mount Vesuvius in 79AD took people in Pompeii by surprise. It was so quick and so severe that the town was soon covered in _ and _. Many houses in the town were _. It was an _ disaster for many people who could not get away in time. A writer named Pliny, who was there during the _, described how

13、 lava was thrown into the air like a _. _ many of the townspeople, _ at the _ sight of Vesuvius eruption, stayed too long and failed to escape in time.2. Find suitable words or expressions from the texts in the unit to fill in the blanks on page35.Step2 Grammar1. Show a flash to review the differenc

14、es between V-ing and the past participle.a. 现在分词表示主动，过去分词表示被动。b. 现在分词表示进行中的动作，过去分词表示动作已完成。2. Show a flash to review the V-ing form as the adverbial.a. 分词的逻辑主语必须与主句的主语一致.b. 分词的动作不是主句的主语发出时, 分词前面必须加上它的逻辑主语, 这种分词短语叫做独立主格结构.c. 当独立主格结构的逻辑主语泛指一般人, 如we, you, one 时, 逻辑主语可以省略.3. Show the following pair of se

15、ntences on the screen.I was feeling tired. I went to bed early. Feeling tired, I went to bed early.相当于As I felt tired, I went to bed early.I worked hard all day. I went to bed early.Having worked hard all day, I went to bed early.相当于After I worked hard all day, I went to bed early.可以看出:a. 分词的一般式说明分词

16、的动作与主句谓语动词的动作是同时发生的.b. 分词的完成式说明分词的动作发生在主句谓语动词的动作之前.巩固练习: 现在分词的完成式和一般式进行互换.a. Studying volcanoes, I am amazed at their beauty as well as their potential to cause great damage.Having studied volcanoes for twenty years, I am still amazed at their beauty as well as their potential to cause great damage.

17、b. Having stood for several minutes, I saw some of my friends chatting at a table.Arriving there, I saw some of my friends chatting at a table.c. Writing the letter , he left out something important. Having written the letter, he read it carefully.4. 用分词的一般式改写句子:As I didnt know how to find the subwa

18、y, I called a policeman for help.Not knowing how to find the subway, I called a policeman for help.可以看出: 分词的否定式是在分词短语前面加上not, never等否定词. 5. 小结-ing 形式的用法a. ing 形式作状语用法例句时间Seeing those pictures, she remembered her childhood. (= When she saw those pictures.) 条件Standing at the foot of a high mountain，yo

19、u will find yourself very small. (= If you stand at the foot of a high mountain, .) 让步Knowing where I live, he never comes to see me .(= Though he knows where I live, .) 伴随They stood there for half an hour watching the stars in the sky. (=They stood there for half an hour and watched the stars in th

20、e sky.)原因Being tired , I stopped to take a rest. (= Because I was tired, ) 结果She was so angry that she threw the toy on the ground, breaking it into pieces.(= She was so angry that she threw the toy on the ground and broke it into pieces.)b. Ving 形式的完成式作状语用法分词的完成式说明分词的动作发生在主句谓语动词的动作之前.例句Having brush

21、ed his teeth，Mr. Brown came downstairs for breakfast.6. Find in the text the sentences with v-ing forms or the perfect ing form. 7. 完成36页与37页的关于分词的一般式和完成式的练习.Homework:1. 完成workbook中对应的练习.2完成分词专项练习。Period 3 Using language 中的Listening and SpeakingTeaching goals：1. To help the students improve listenin

22、g skills.2. To learn how to express fear, surprise and anxiety.3. To learn to describe a natural disaster according to experience or imagination.Step 1 lead-inAccording to the following situation, make up a dialogue and act out the dialogue. Four students as a group.Situation: Your group go to a vol

23、cano to collect a sample of boiling lava, take measurement in the crater and fly over a volcano to make a map of the direction of the lava. You will meet a lot of difficulties and have to overcome them.这个任务也可在课前布置让学生去准备好, 这样课堂上就直接让两组同学来表演. 通过这样的导入, 学生对听力材料会有似曾相识的感觉, 而且会饶有兴趣地去听材料里面的内容, 去弄清楚材料里的火山学家到底

24、碰到什么样的困难, 怎样去克服困难的.Step 2 Listening1. First Listening. Look at the three pictures of volcanologists at work. Then listen to them talking about their most frightening experience. Write their names under the pictures.2. Second Listening Listen to the tape again. Answer the questions about each persons

25、 experience.a. How long has he/she been a volcanologist?b. In what country was the volcano he/she talks about?c. Why did he/she forget to be frightened?3. Third ListeningAsk students to work in groups of three, each taking the role of one of the volcanologists and telling the story to others in the

26、group. 4. Fourth ListeningListen to the tape once more. Write the name of the person beside the things they said.This exercise also tells us the ways to express fear and anxiety.1) Ask individual students to read the sentences aloud to the class. Ask them to try to recall who said each one. 2) Play

27、the tape for students to identify the expressions and record the name of the speaker. It may be necessary to play the tape more than once. Check answers by playing the tape and stopping when one of the expression is heard.5. Ask students to retell each persons frightening experience.Step 3 SpeakingT

28、hink of a powerful natural force (such as an earthquake, flood, typhoon, storm) that you have experienced. You can use your imagination if you have not experienced any of these things. First you should tell your partner about your experience and how you felt. And then ask some students to tell the w

29、hole class his/her experience and how he/she felt.Homework:1. Finish the Listening Practice and Listening Task in the workbook.2. Make up a dialogue with your partner. What should we do to prevent the disaster happening again or lessen its damage?Period 4 Using language 中的Reading and WritingTeaching

30、 goals:1. Learn about Tianchi, its location, views, legend, etc.2. Help the students to enjoy the beauty of nature.3. Improve the ability of writing by writing scenic spots in your hometown or you have visited.Step 1 Lead-in1. Ask students to describe the tourist attractions they have visited or the

31、y know.2. Show the pictures of some scenic spots and students can enjoy their beauty.3. Show some pictures of Changbaishan and introduce Changbaishan to students.4. Show some pictures of Tianchi and introduce Tianchi to students. Ask students to guess how Tianchi was formed. They can have a discussi

32、on about this question.Step 2 Fast Reading1. Read the text quickly and find out the main idea of each paragraph.Paragraph 1: The introduction of ChangBaiShan.Paragraph 2: The introduction of TianChi.Paragraph 3: A story about TianChiParagraph 4: Drop a coin into TianChi to guarantee your love.2. Rea

33、ding the article and tell the statements are true or false.1) Changbaishan is the second largest nature reserve in China.2) The peak of Changbaishan can reach as high as 2,000 meters.3) You can see a lot of black bears, leopards or cranes in Changbaishan.4) Tianchi is a lake in the crater of an extinct volcano.5) The ancestors of the Manchu people were believed to be good at language and persuasion. Step 3 Careful Reading1. Read the first paragraph and answer the following questions.1) Where is ChangBaiShan?2) How important is ChangBaiShan?3) How high is ChangBaiS