优品课件之Savingtheearth(TheFourthPeriod)

1、优品课件 Savi ng the earth (The Fourth Period ) The Fourth Period Teachi ng Aims: 1. Lear n and master the followi ng words: defe nd, in correct,affect, advise 2. Train the students listening and speaking abilities. 3. Learn to write an evaluatio n paragraph. Teachi ngImporta nt Poi nts: 1. Master the u

2、seful words and phrases appearing in this period. 2. Learn to support an opi nio n both in speak ing and writi ng. Teachi ng Difficult Point: Howto help the students finish each task and improve their skills to use Ianguage. Teaching Methods : 1. Oral practice to train the students speaking ability.

3、 2. Written work to train the students writing ability. 3. Individual, pair or group work to makeevery student work in class. Teaching Aids: 1. a tape recorder 2. a projector 4. the blackboard Teaching Procedures: Step I Greetings Greet the whole class as usual. Step II Revision and Lead-in T: Yeste

4、rday, we learnt the use of Inversion and did some exercises. Can you tell me the differeneebetween inverted sentences and usual sentences? Wu Li, would you like to have a try? Sl: Yes. In an inverted senten ce, part of the predicate or the whole predicate comes before the subject. In a usual sentenc

5、e, the predicate comes after the subject. T: Quite right. Sit dow n, please. Then for what reasons do you think Inversion is used? Any volunteer? S2: I thi nk Inversion is used for two reas ons. One for the n eed of the grammatical structure of a certa in type of sentence the other for emphasis of a

6、 certa in part of a senten ce. T: Quite right. Now, lets do an exercise, Look at the screen and write your an swers on a piece of paper. The n r 11 check the an swers with the whole class. (Teacher shows the following on the scree n. ) Rewrite the follow ing senten ces using Inversion. 1. We can fin

7、ish the work on time only by seizing every minute. finish the work on time.2. I have n ever heard such nonsense in all my life.heard such nonsense in all my life. 3. A piece of paper was folded in the pocket. a piece of paper. 4. He little realizes how important this heart operation is. how importa

8、nt this heart operati on is. 5. Churchill was not only a statesma n but also a poet. Churchill a statesma n but also a poet. Suggested an swers: 1. Only by seiz ing every minute can we 2. Never have I 3. Folded in the pocket was 4. Little does he realize 5. Not only was T: Well done. Besides, weve r

9、ead a passage in this unit about the Earth Summit and environmental problems and solutio ns. What words weve lear nt in this un it can help us describe environment problems and solutions? Ss: Susta in able developme nt, con tam in ated drinking water, poor sanitation, air pollution, killer, poverty,

10、 war, violenee, equality, fair ness, take acti on, make cha nges, educatio n, in harmony with nature. T: Oh. So many. I hope you can remember and use them. We know the Earth Summit mainly talks about en vir onment problems and soluti ons. Experts from all over the world are welcome to the Earth Summ

11、it, speaking about different topics and discussing new ways to solve old problems. Today we are going to listen to the voices of the Earth Summit. And well talk about the environment problem again. First, let s learn the new words in this period. (Teacher shows the new words on the screen and gives

12、brief explanations.) ( Bb: alter native alternate; defe nd agai nst/from; in correct-correct; affect/effect; advise sb. (not) to do sth. ,advise doing sth. ) Step III Liste ning and Speak ing T: Well, now please ope n your books at Page 71. Look at the first part in Listening and Speaking: Listen to

13、 the speeches from the Earth Summit and complete the outlines below, IIIplay the tape twice continuously. Listen carefully and finish your task. At the end ,Ill check your an swers. (After liste ning, teacher introduces the next task.) T: Well done. Youve understood the speeches exactly. Do you agre

14、e with what they are saying? Work in pairs to talk about this question. Write downyour thoughts, comments, opinions and questions about what they said. Prepare for a few minu tes. Then well go on with the next task. (A few mi nu tes later.) T: OK. Now you have a cha nee to make your own speech. Use

15、your no tes and thi nk about what you would like to say. First, write an outline,and then give the speech in class. Makesure that you are ready to answer questions and defend your argume nt. Are you clear? Ss: Y es. T: You can beg in to prepare tot it now. (Another few minutes later.) T: Are you rea

16、dy? Ss: Yes. T: OK. Now lets begi n our speech. Each stude nt should listen to your classmates speeches carefully and get ready to ask them questions. Whod like to be the first to give your speech? Any volunteer7 S:(One of the students stands up and gives his speech. The others go on. After the spee

17、ches, teacher shows the following on the screen. ) Tips for preparing a speech: Knowing how to give a good speech is a useful skill. If you want to give a good speech, there are a few thi ngs you n eed to con sider. I. Think about your audie nee a. Who will liste n to your speech? b. What are they i

18、n terested in? c. What do they want to know? d. What do they already know? Outlines like these will help you decide what you are going to say. II. Prepare and practise a. Research your topic carefully and orga nise the material, b. Before you give the speech, practise in front of a mirror or togethe

19、r with a friend. T: Your speeches were all made successfully, but in order you can make a better speech, I give you someadvice on preparing a speech. Look at the screen. Lets study together. Step IV Writi ng T: As we all know, en vir onment problems are beco ming more and more serious with the devel

20、opme nt of moder n agriculture and in dustry. Among all the problems, which do you think is the most serious one? Why do you thi nk so? What do you thi nk should be done to solve it? Nowwrite a paragraph to tell your reader about these questions. (Teacher writes the questions on the Bb. ) T: You can

21、 prepare your paragraph as follows: First, write a sentence that states your opinion, for example, “ I thi nk that air polluti on is the most serious problem because it does great harm to our health. ” Then list as many reasons as possible. Fin ally, use the senten ces to orga nise your paragraph. A

22、re you clear? Ss: Yes. T: Well. rIIshow you somewords and phrases on the screen. You can refer to them. After finishing your paragraph, use the check list in Un it 2 to check it for errors and mistakes. Are you clear? Ss: Yes. (Teacher shows the followingon the screen and the stude nts beg into work

23、.) Many products are bad for the en vir onmen t. It is wrong to buy products that are harmful to the environment. To think that there is nothing we can do is in correct. What we do is importa nt because it affects the en vir onment I suggest that we do someth ing about these problems. I would advise

24、 people not to buy products that harm the en vir onment. I recomme nd that all of us should think about what we do and what we buy. Step V Summary and Homework T: You all did very well in class. Now lets see what weve done in this period. First. weve revised the previous conten ts, in clud ing the text and the grammar. Second, weve done some liste ning and speaki ng. Then weve learnt to write an evaluati