| UNIT 16 SCIENTISTS AT WORK |
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Lesson 1 --------warming up, listening and speaking Step1.Warming up Ask the students to look at the four photos in the book and describe what they see. Photo 1 shows students at work in a chemistry lab. Photo 2 shows an English book called Hamlet, a dictionary and a notebook. Photo 3 shows two students doing an experiment. Photo 4 shows students looking at something through a microscope. Step2. Listening From the four photos we know that we often do some experiments at school. But do you know how to behave in a science lab? Now let’s listen to a dialogue. It will tell us what to do and what not to do. Listen for the first time and do Ex1. Then check the answers with the class. Listen for the second time and do Ex2. Listen again,let the students check their answers. Then check the answers with the class. At last,listen again and let the students find out the sentences which contain the answers. Step3.Speaking Now let’s talk about the great work of scientists,a high-speed maglev train. Read the dialogue and talk about ther advantages and disadvantages of it, using the useful expressions in the column. Then listen to the dialogue and pay attention to the pronunciation,stress and intonation. At last, explain some language points. 1.a waste of It’s a waste of money/time. 2.mean to do sth mean doing sth 3.make a noise 4.make use of make good/full/little use of Homework; Read rhe dialogue Grasp the language points Lesson 2 ------Reading Step 1. Revision Step 2. Pre-Reading Do you know the names of some famous scientists? Do you know Benjamin Franklin? And what is he famous for? Today we will read about him. Step 3. General reading Read the passage to get the main idea of it. Then do Ex1 on page 25. Step 4. Fast-reading Read the passage again and do the following exercise. 1. Scientists knew what electricity is for the 1st time______. A. in June 1752 B. before 1752 C. after 1752 D. in the 19thcentury 答案:A 2. Which of the following is in the correct order? a. The experiment proves that lightning and electricity are the same. b. The kite flew high in the rainy shy. c. He made a silk kite. d. Very sharp piece of metal was fixed. e. A key was fastened to the end of the string. f. A ribbon was tied to the string. A. d, e, f, c, b, a B. c, d, e, f, b, a C. d, c, e, f, a, b 答案:D 3.Franklin made the kite of silk because______. A. wet silk does not conduct electricity B. silk kite flies high C. silk kite will last longer in weather with rain and strong winds D. silk kite is cheaper 答案:C 4.Text 2 is meant for ______. A. experts B. scientists C. common readers D. officials 答案:C 5.Which is not stated but can be inferred from Text1 ? A. Franklin did the experiment with the kite. B. Franklin’s experiment with electricity was dangerous. C. Franklin failed the experiment again. D. The experiment was conducted in bad weather. 答案:B Step 5. Listening Listen to the tape of the passage and pay attention to the pronunciation and intonation. Step 6. Language points 1. experiment: n. do an experiment make an experiment perform an experiment conduct an experiment carry out an experiment 2. conduct: vt. He conducted me around the museum. He conducted the orchestra. The manager conducted his business carefully. 3. charge: vt. (1)使….充满 He’s charging a battery. (2)索价,收费 He charged us 10 dollars for mending this pair of shoes. n. in charge 主管 in charge of 负责 in the charge of 由….负责 4. prove: vt. 证明,证实 The facts prove that he is honest. He has proved his courage in the battle. He proved himself to be a true man. 系动词: 证明是…. The way proved to be useful. He proved a successful manager. 5. take care to do take care that 从句 Take care not to fall into the river. Take care that you don’t get run over when crossing the street. Homework: Read the text. Lesson 3 --------language study Step 1. Revision Review some language points. Step 2. Word study Let the Ss do it by themselves. Then check the answers with the class. Step 3. Grammar First ask the Ss to look at the examples. Then let them do the exercise. Then check the answers. Step 4. Practice First do Ex1 on Page90 of the workbook. Then Ex2. At last Ex1 and 2 on Page91. Homework: Review what we have learned this class. Lesson 4 -------Reading and writing Step 1. Revision Step 2. Lead-in We have learned something about science experiments, but have you known about animal experiments? Are you for them or against them? Today we will read “Animal Experiments”. Step 3. Reading Read the passage quietly and carefully to do the following exercise. 1. Which of the following is true ? A. Every year 2.5 million animal die in experiments. B. Animals are only used to test new medicines. C. Scientists say animal testing does not work. D. Almost all the medicines people use have been tested on animal. 答案：D 2. Animal right activists are _______. A. doctors B. people who defend animal rights C. officials D. scientists 答案：D 3. What’s a painkiller ? A. 杀手 B. 安慰剂 C. 止痛剂 D. 救心丸 答案：C 4. Text 2 is mainly about _______. A. divergence () on animal experiments B. the results of animal experiments C. the process of animal experiments D. loss of animal experiments 答案：A 5. What’s the writer’s attitude towards animal testing in Text 2 ? A. Neutral. B. Supportive. C. Indifferent. D. Against. 答案：A Step 4. Listening Step 5. Language points a) be used to do sth. Used to do sth Be/get used to doing sth b) allow vt. Allow doing sth. Allow sb to do sth. We don’t allow smoking here. We allow him to enter the house. c) doubt vt I doubt if/whether he’ll succeed. I don’t doubt that he’ll be successful. n. 后接同位语从句 There is no doubt that he’ll be doubt. Is there any doubt that he’ll be doubt? I have some doubts whether he’ll be successful. d) make clear 说明白，说清楚 You’d better make your meaning clear on this matter. Step 6. Writing Write a passage about what to do with animal experiments in the future and why. Homework: Finish writing. |
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