高中英语新课标外研版必修1教案26

1、The Second Period The General Idea of This PeriodIn this period, metals.we re going to read a passage on the reaction of Teaching Aims1. Improve the students ability of reading comprehension.2. Get the students to have a global understanding of the reading passage.3. Train the students to guess the

2、meaning of a word according to the context.Teaching Important Points1. Train the students reading ability.2. Get the Ss to understand the reading text.Teaching Difficult PointHow to improve the students reading ability.Teaching Methods1. Individual, pair work to make every student work in class.2. F

3、ast reading and careful reading to understand the passage correctly.Teaching Aids1. a tape recorder 2. a projector1 / 7 3. a multimedia computer Teaching ProceduresStep 1 Greetings and leadinGreet the whole class as usual. T: We are going to do an experiment today. I need these things to do the expe

4、riment: test tubes, Bunsen burner, salt.When we do an experiment, we should first of all have an aim. We should use proper methods. We should find the result and draw a conclusion.Have you ever done a scientific experiment. What is the correct order of a scientific experiment. Show the words on the

5、screen.conclusion aim result methodT: Put the words into correct order.aim method resultconclusionStep 2 MotivationT:As we know quite well,metals are very useful. What are the different uses of metals. What should we know when using metals. Which reacts most with water,potassium or iron. You will ha

6、ve a better understanding of metals after reading Passage A. Show the three questions on the screen. 1What are the different uses of metals. 2What should we know when we use metals. 2 / 7 3Which reacts most with water, Step 3 Fast readingpotassium or iron.Teacher allows the Ss a few minutes to do fa

7、st reading.T:Who has got the answers. for example,steel is S:Different metals have different uses,used in cars and iron is used in electrical equipment.T: What should we know when we use metals. S: When we use metals, it is important to know how they react with different substances.T: So we must be

8、careful when we use metals. Who should be good at using metals.S:Scientists.potassium or S:Engineers.S:Mechanics.T:Very good. And which reacts most with water,iron.Ss: Potassium.T: Do we have to keep in mind how metals react with different substances.S:Yes.Its enough to have some common sense. S:Not

9、 necessarily.We d better leave them to the experts.3 / 7 S:I don t quite agree with you. Better leave them to the people who are interested in this field of science.T: Do you agree with him/her. Ss: Yes. /No. Step 4 Detailed reading Read the passage again. Answer the questions in Part 3 in the SB,P4

10、4.This is a good time to enable the students to learn to read the table.Answers: 1Potassium,calcium and sodium.2It burns to form an oxide.3Magnesium,aluminium and zinc. 4It has a slow reaction.5No, it doesnt. Step 5 Further readingT: Now read Passage A carefully to choose the best title for it.S: Th

11、e Reaction of Metals is the best title.Step 6 Language points1. It is hard to think of a world without metals.it 是形式主语 ,真正的主语为 to think of a world without metals,这是英语中一个很重要的句型；4 / 7 Ask the Ss to make some sentences,using the pattern.It is hard to think of a world without friendship.It is hard to th

12、ink of a world without electricity.It is important to read the directions before you use the machine. It is possible to build a radio without using metals.T: Put the sentences into Chinese one by one.2.equipment 不行数名词, “设备 ,装备”；1firefighting equipment 消防设备 the cost of equipment 设备 费用2常见的不行数名词有 :news

13、 新闻,information 信息,advice劝说,fun 玩耍,practice实践,furniture 家具3.When we use metals,it is important to know how they react with different substances.使用金属时 ,要明白金属和不同的物质如何发 生反应 ,这一点很重要；1react with. 对 起化学反应 Potassium reacts with oxygen easily. 钾和氧简单起反应；react to.对 产生反应 ,回应 The eye reacts to the light. 眼睛对光会起

14、反应；He didn t react to their words.他对于他们的话没作反应；2substance不行数名词, “物质” ；a chemical substance一种化学物质 What substance does it consist of. 它是由什么物质组成的 . 5 / 7 4. The reaction of metals with these substances can be put in order.put.in order 把 按次序排列 以 order为中心的短语有 : keep order 维护秩序obey orders 听从命令 in good orde

15、r 井然有序 Step 7 Practicesay numbers in order 照次序数数 out of order 次序乱的 ;出故障的Learn to say the names of the metals in the table. Show the real object or the picture of each metal. Step 8 Assignment1. Learn the new words by heart.2. Recite Passage A. 3. Preview Passage B. Step 9 The design of the writing o

16、n the BlackboardModule 5 A Lesson in a Lab The Second Period react withreact toa chemical substanceWhat substance does it consist of.put.in order keep orderobey orderssay numbers in orderin good order out of orderStep 10 Activity and Inquiry Steps Students Acting 6 / 7 1 Read through the examples and have the class repeat them after the teacher. Get the students to repeat after the teacher. 2 Answer individually. the questions Ask the students to a