UNIT 16 SCIENTISTS AT WORK（单元详案）

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1、UNIT 16 SCIENTISTS AT WORKLesson 1 -warming up, listening and speakingStep1.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. Phot

2、o 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 lets listen to a dialogue. It will tell us what

3、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 con

4、tain the answers.Step3.SpeakingNow lets 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

5、 intonation.At last, explain some language points.1.a waste of Its a waste of money/time.2.mean to do sth mean doing sth3.make a noise4.make use of make good/full/little use ofHomework; Read rhe dialogueGrasp the language pointsLesson 2 -ReadingStep 1. RevisionStep 2. Pre-ReadingDo you know the name

6、s of some famous scientists? Do you know Benjamin Franklin? And what is he famous for? Today we will read about him.Step 3. General readingRead 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

7、what electricity is for the 1st time_.A. in June 1752 B. before 1752C. after 1752D. in the 19thcentury答案:A2. 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

8、 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, aB. c, d, e, f, b, aC. d, c, e, f, a, bD. c, d, e, f, a, b 答案:D3.Franklin made the kite of silk because_.A. wet silk does not conduct electricityB. silk kite flies highC. sil

9、k kite will last longer in weather with rain and strong windsD. silk kite is cheaper 答案:C4.Text 2 is meant for _.A. expertsB. scientistsC. common readersD. officials 答案:C5.Which is not stated but can be inferred from Text1 ?A. Franklin did the experiment with the kite.B. Franklins experiment with el