1、英语 1 外研版 module5 优质教案(第 3 课时)Module 5 A Lesson in a LabThe Third Period GrammarTeaching goals 教学目标1. Target language 目标语言a. 重点词汇和短语 a little, a bit, a lot, rather, no, any, (very) much, lotsb. 重点句式The earth is forty-nine times larger than the moon. P43The earth is forty-nine times as large as the mo
2、on. P43Its getting brighter and brighter! P47The closer you are, the more youll see. P47The more books I read, the more information I learn. P472. Ability goals 能力目标Enable the students to learn degrees of comparison and some adverbs used to modify the comparative degree.3. Learning ability goals 学能目
3、标Help the students solve some simple maths problems to practice the degrees of comparison.Teaching important points 教学重点 The usages of the comparative degree.Teaching difficult points 教学难点Help the students pay attention to the agreement in comparison objects.Teaching methods 教学方法Question-answer and
4、discussion. Teaching aids 教具准备A computer and a projector.Teaching procedures just add “. times” before the comparative degree. But please note that we say “twice” instead of “two times”. Are you clear?Ss: Yes. T: Now, lets do some easy maths problems. Listen! If Object A is 10 meters long, and Objec
5、t B is twice longer than Object A, how long is Object B?S5: Twenty meters long.T: Good. Youve understood the structure correctly. The second problem: if Object A weighs 100 kilogrammes, and Object B is four times heavier, how heavy is Object B?S6: 400 kilogrammes.T: Why?S6: Because Object B is four
6、times heavier than Object A.T: OK. Besides this structure, we can use another structure to express the same meaning. That is:A is . times as large (big, tall, long etc.) as B.Write down the structure on the blackboard.T: Well, lets go on to do some maths problems.Task 2: Activity 2Read the instructi
7、on of Activity 2, and let the students read the sentences in Example. After that, ask them to finish the following 5 problems.T: The purpose of the task is not to check your intelligence, because I believe that all of you have high IQ. Its about the uses of the two structures weve just learnt. Now,
8、finish the task and then check your answers with your partners. Remember you must use both of the structures to practice what weve just learned.After a while, ask four students to read out their answers in complete sentences.S1: I think winter in Harbin is four times colder than Beijing. Or, winter
9、in Harbin is four times as cold as Beijing.T: The structure is right, but there are mistakes in the two sentences. Who can correct the mistakes and read out a complete sentence?S2: It should be “Winter in Harbin is four times colder than that in Beijing.”T: Right. When we are using the comparative d
10、egree,we must pay attention to the two comparison objects. Now who would like to do the third one?S3: Miss Wu, can we say that “in winter the temperature of Harbin is four times lower than in Beijing”?T: Thats a good sentence, but also you should pay attention to the two comparison objects. We shoul
11、d say that “In winter the temperature of Harbin is four times lower than that of Beijing.” Write down the two sentences on the blackboard, so that the students can clearly know the agreement in two comparison objects.T: Are you clear? OK, how about the third problem?S4: I think Mount Qumolangma is a
12、bout six times higher than Mount Tai. Or, Mount Qumolangma is about six times as high as Mount Tai.S5: My aunts house is twice as large as my house. Or, my aunts house is twice larger than my house.S6: Tom weighs over twice as heavy as Lily. Or, Tom is over twice heavier than Lily.Step Degrees of co
13、mparison 2 (P47) Task 1: Activity 1T: Now, please finish the sentences on the screen, using proper words and the structure.Show the sentences on the screen.bright dark heavy weak fat1. When the sun rises, it is getting _.2. When the sun sets, its getting _.3. When the rush hour comes, the traffic is
14、 getting _.4. After suffering a long disease, he is getting _.5. She likes to eat sweet, and these days she is getting _.Read out the first part of each sentence, and let the students read and finish the second part of the sentence.Sample answers:1. brighter and brighter 2. darker and darker 3. heav
15、ier and heavier 4. weaker and weaker 5. fatter and fatter T: Now, we are going to learn another structure. Suppose you save a millionaires life, and he offers you money to thank you, and asks you: “How much do you want?” And suppose you are a greedy person. What will you say?S1: The more, the better
16、.T: Yeah, you are so clever. Its a real bargain. But if he also wants you to share his pains, and asks you “How much do you want?”, what will you say?S2: The less, the better.T: Ha! Youre clever. But there cant be such an easy thing in the world. No pains, no gains. If you gain what you shouldnt gai
17、n, that would be a disaster. Now, please look at the three sentences on the screen:1. Its getting brighter and brighter!2. The close you are, the more youll see.3. The more books I read, the more information I learn.T: Do you know the meanings of these sentences?Ss: Yes.T: OK, now, please answer my
18、questions. Question 1: Which of these structures is used to say that something is changing?S3: All of the structures are used to say that something is changing.T: Question 2: Which of these structures is used to say that things change / are changing together?S4: The second and the third ones are use
19、d to say that things change / are changing together.T: Question 3: Which structure repeats the same adjective?S5: The first one repeats the same adjective.T: Good. Now, lets practice the structure. Please look at Activity 2 on page 47. Use the words below to write sentences as in the example. Who wo
20、uld like to finish Sentence 1?S6: The hot metal gets bigger and bigger.S7: Miss Wu, can we say that “The hot metal is getting bigger and bigger.”?T: I think you can do it. They have the same meaning. Now, lets finish the next three sentences. Can you three finish the sentences one by one?S: .By now
21、the students have learned 4 structures about degrees of comparison, including:1. The earth is forty-nine times as large as the moon.2. The earth is forty-nine times larger than the moon.3. Its getting brighter and brighter.4. The closer you are, the more youll see.Show the sentences on the screen to
22、 let the students have a revision.T: Now, please look at the screen. By now, weve learned four useful structures about degrees of comparison. Please turn to page 91. Lets practice these structures. I will give you 3 minutes or so to finish Exercises 1 and 2. Three minutes later. Check the answers wi
23、th the whole class.T: Im very glad that youve mastered the structures. Now please turn to page 47. Look at Activity 3. Read these sentences and underline the comparative expressions and circle the adverbs used to give more information about the comparative expressions.Collect their answers.T: Next,
24、lets turn to page 48. Read the instruction of Activity 4 and then do as it asks you to. You can compare everything you know.Sample answers:1. Playing computer games is much more dangerous for young students than playing other games.2. Tom is a bit taller than Bob.3. The climate in Guangzhou is rathe
25、r hotter.4. I dont know any more than you.5. His French is no better than Mr. Pastiers English.6. This kind of maths problem is a little more difficult than others.Step V HomeworkT: In this period, we learned Degrees of Comparison. After class you should finish Exercises 3 and 4 on page 92 to make a revision of them. OK, class is over, see you next time. Ss: See you.