2019-2020年外研版高中英语必修1 module 5《a lesson in a lab》(第三课时)教案.doc
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2019-2020年外研版高中英语必修1 module 5a lesson in a lab(第三课时)教案一、教学目标 1. 知识与技能a. 重点词汇和短语 used to, in the area of, be proud of, be supposed to, facility, crucible, balance, tongs, react, stage, mixture, set upb. 重点句式The hotter the mixture, the quicker the reaction. P94Continue to heat the mixture until the water evaporates, leaving the salt in the crucible. P94Using tongs to hold the test tube, he heated it over the Bunsen burner. P94Thats when things started to go wrong. P94. as the lecturers are people who have made real discoveries in their area of science. P49Im being more and more interested in physics. P492. 态度与方法Enable the students to describe an incident in a science class.3.情感态度与价值观Help the students learn how to describe an incident.Help the students learn how to write a description of an experiment according to the outline.二、Teaching important and difficult points 教学重点和难点Help the students discuss incidents that have happened in their science classes.三、Teaching methods 教学方法Discussion and pair work.四、Teaching aids 教具准备A puter and a projector.五、Teaching procedures &ways 教学过程与方式Step RevisionCheck the students homework.For these two exercises, ask the students to read out the plete sentences.T: From Exercise 4, we know that we can use much, a bit, a lot, a little to modify the parative expressions. Besides these, we have other words to do this. Now please look at the sentences on the screen. Read the sentences and pay attention to the bold face.You have far more imagination than I have.Its slightly warmer today.Shes actually a good deal older than she looks.Do you feel any better today?She was no older than Zilla.You must go and get some more milk.He is fat, but his brother is still fatter.This book is even more useful than that one.My sister is ten years younger than me.Youre a head taller than Jane.It was one-fourth cheaper than the market price.After the students have finished reading, ask them to make a conclusion of the words to modify the parative degree.T: By now weve learned many words that can modify the parative degree. What are they?S1: They are much, a lot, far, a bit, a little, slightly, any, no, some, even, still, a head, ten years and so on.T: Yeah, thats right. Now, thats all for the home-work. Lets e to Reading.Step Lead-inT: Do you know this man? S1: He is Ting Zhaozhong, a world-famous Chinese scientist. He once won the Nobel Physics Prize.T: Thats right. He is a top-class scientist. Many outstanding scientists think it is an honor to work with him. What he often says is “I dont know”. We know science is a serious thing. You cant be too careful in it. I think this is the real spirit that a scientist and the person who aims to be a scientist should have.Step Reading (P94)Task 1: Fast readingT: Now lets turn to page 94 to see what happened in the chemistry lab. First, read the three summaries about this passage on page 93. After reading the passage quickly, choose the best one.Give the students some time to read the passage.T: Which one do you think can be the best summary of the passage?S1: No. 1 is the best summary, I think.T: Good.Task 2: Careful readingThe purpose of this task is to answer the eight questions in Exercise 11, and let the students get familiar with some new words in this Module.T: Now, lets read the questions in Exercise 11, so that you can know what you should do when you are reading. Now read the passage carefully and find the answer to each question. Mark where the answers are and then number them. So that you can find them quickly when you need these answers. Let the students do the job in pairs. One asks the questions and the other answers them. While the students are asking and answering the questions, walk around the classroom to see if they need any help. And at the same time, collect the answers.Step DiscussionT: Well, you often do some experiments in your science lessons, right? Did any incidents happen? Now Ill give you some time to discuss the incidents that have happened in your science lessons.After a while.T: Who would like to report an incident that happened before?S1: Id like to. One morning, we were doing a chemical experiment in the school lab. We fetched some solution(溶液) from the cupboard, including oil of vitriol(浓硫酸), and put them on the table. Wang Hua and Ding Ding were in the front row. Xiao Ming and I were in the second row. Suddenly, Wang Hua turned to say something to me, and turned over the bottle with oil of vitriol by accident. The bottle was not covered! The oil of vitriol splashed. Soon a hole was burned in Xiao Mings coat. And his hand was burned to black. He screamed. We were so worried. The teacher ran over to send Xiao Ming to the nearest hospital.Fortunately, nobody else was injured in the incident. However, it taught us a good lesson. Never leave a bottle uncovered on the table.S2: Id like to tell you about one of the incidents in our chemical experiment. In the experiment, we used Bunsen burner. After the experiment, one of my classmates forgot to cover it. About ten minutes later, a teacher passed the laboratory and smelt the odd smelling. She immediately entered the lab and put out the fire. Fortunately, no further incident was caused. After that all the teachers and students were gathered to have a meeting. The headmaster gave a talk to em-phasize the importance of safety in lab. Thats a good lesson.T: Yeah, if the teacher didnt notice the incident, it would have been a terrible fire. We often think its impossible to make an accident. But as a saying goes, “Its not too careful to do a thing.” We should always keep the saying in mind. Step Cultural CornerT: In this Module, weve learned many things about scientific experiment. Maybe some of you find it interesting, because you are interested in science; while others may find its dull, because they prefer art lessons. In our class, who enjoy study-ing science? And why?S1: I like studying science. I like maths best. When I work out a problem, I feel very happy.S2: I like chemistry. Its very interesting to see that you add one substance to another, and they react and change into a new substance. That is fantastic!T: Knowledge is power. Whatever subjects you enjoy learning, you should devote yourselves to them. Or you wont make any achievement. Now lets turn to page 49. Read the passage and answer this question: Why has Mark bee more interested in science?Give the students some time to do this in pairs, and then check the answers.T: Are you ready to answer the question?Ss: Yeah!T: Why has Mark bee more interested in science?S3: I think there are two reasons. One is that the science facilities are very good in the new school, with laboratories that have all the latest equipment. The other is that they have four chances each term to public science lectures, and the lecturers are people who have made real discoveries in their area of science. I think Mark is a lucky person. T: Yeah. Situations can change a person. In fact, we also have the same chance to learn some knowledge outside class. Channel 10 on CCTV offers a lot of lectures about science and art. Some are given by famous professors. One of my favorite programs is “百家讲坛”. If you often watch it, I believe youll benefit from it. Step Summary and HomeworkT: We have learned a lot about scientific experiments. Nowadays, it seems that most people prefer science, because they think science can bring financial benefits, while they do not pay much attention to morality, ethics and love. As a result, there are many disasters and wars in the world. So when we are learning science, we should also pay attention to morality, ethics and love. Todays homework is to preview PRONUNCIATION and EVERYDAY ENGLISH. OK, time is up. So long, everyone.Ss: So long, teacher. 六、板书设计重点词汇:used to, in the area of, be proud of, be supposed to, facility, crucible, balance, tongs, react, stage, mixture, set up重点句式:The hotter the mixture, the quicker the reaction. P94Continue to heat the mixture until the water evaporates, leaving the salt in the crucible.重点语法:used to七、教学反思:这节课的学习,不仅达到了生生互动的效果,也体现了师生互动的优势。整体来说,这是一节成功的课,因为我做到了以学生为主体并创造了让每个学生都有机会证明自己“我行”的教学遵旨。- 配套讲稿:
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