【教学设计】Unit 20 Lesson 3（北师大）.docx

Unit 20 NEW FRONTIERSLesson 3 Scientific Breakthroughs 教材分析This unit is about future. Scientific Breakthroughs is the last lesson of Unit 20. It is about the usages of the compound words. 教学目标【知识与能力目标】1. To master proper reading strategies for different tasks and expand knowledge of science and technology2. To improve practical reading skills and ability, to talk about the topic of scientific and technology3. To get familiar with scientific breakthroughs in the last century and to foster interest on area of science and technology【过程与方法目标】To train the students communicative ability by using the compound words. 【情感态度价值观目标】To make the students the real masters in class and develop the students awareness of self-learning. 教学重难点【教学重点】1. To use proper reading strategies for different tasks.2. To get familiar with scientists and scientific breakthroughs in the last century.【教学难点】Learn to use reading strategies. 课前准备 Tape recorder, Multimedia 教学过程. Greetings. Lead-inAs students of 21st century, you must be familiar with scientific breakthroughs, arent you?Science has changed our life a lot.Look around you, can you tell me what are the scientific discoveries? The computer, lamp, mass media, air conditionerthey are all scientific discoveries, breakthroughs.III Reading1. Get the general idea and read the text fast.The purpose of this article is _.A. the introduction of Albert EinsteinB. the introduction of the process of scientific breakthroughC. introduction of the major scientific discoveries in the 20th centuryD. the contributions scientists made to the world2. Work in pairs and find out the structure of the text.Introduction (Para.1) A brief introduction of scientific breakthroughs in the 20th centuryBody(Para.2-8) Some great pioneers of science and their inventions or discoveriesConclusion(Para.9) The significance of these breakthroughs3. Read the text and check your guesses .1) E=mc2 2) penicillin3) the first computer 4) other galaxiesa) scientists worked together as a teamb) there was a lucky accidentc) a scientist did research for many yearsd) a scientist was inspired4. Match the pioneers with the deeds(1). He was a son of a Scottish shepherd. Although his discovery is important, he remained modest and said “Nature made penicillin.” Alexander Fleming(2). He proved that the universe is actually expanding, and that further away galaxies are, the faster they move. Edwin Hubble(3). He showed in his “theory of relativity” that not even time, mass or length are constant. Elbert Einstein(4). During the 2nd world war, the US Navy turned to them to produce a machine. They didnt finish until after the war, in February 1946. D. Eckert and Mauchly5. Choose the best answers.1) From the first paragraph, we know that _.A. there were not many remarkable discoveries in the 20th centuryB. there are many great discoveries in the 20th centuryC. it is easy to choose the most important discovery in the 20th centuryD. great discoveries are waiting for us to make2) According to the passage, which of the following about the first computer is NOT true?A. It was huge.B. It was invented by Eckert and Mauchly.C. The machine was finished during the World War II.D. It needed much energy when turned on.3) Which of the following was NOT planned?A. The first computer.B. Penicillin. C. Edwin Hubbles exploring the galaxies.D. Theory of relativity.4) The article mainly talks about_.A. the introduction of the Wright BrothersB. the introduction of the process of scientific breakthroughC. Introduction of the major scientific discoveries in the 20th centuryD. the contributions scientists made to the world6. Work in pairs, find out the pioneers, their discoveries, when they discovered them, how the discoveries came about, and their influence.Read the text carefully to find out as much important information as possible. Ask students to answer the true (T) or false (F) or is there no information (NI).1). Einstein was at work when he thought of the equation “e=mc2 ” .2). Einstein participated in the program that developed the nuclear bomb.3). Hubble studied the universe for o