（新课标）辽宁省大连市铁路中学2014年高中英语 Module 5 A lesson in a Lab 3rd period教案 外研版必修1

（新课标）辽宁省大连市铁路中学 2014 年高中英语 Module 5 A lesson in a Lab 3rd period 教案 外研版必修 1The General Idea of This PeriodIn this period we’re going to learn another reading passage.Teaching Aims1 .Learn and master the following words and expressions:rust boil ordinary steam float form dissolve add to keep out of2. Learn to describe a simple scientific experiment.Teaching Difficult Points1. Enable the Ss to write a report on a scientific experiment.2. Learn to use the new words and expressions in this part.Teaching MethodsReading, question and answer.Teaching Aids1. a tape recorder2. a computer3. some test tubes, nails, Bunsen burner, balance, tongsTeaching ProceduresStep 1 Greetings Greet the whole class as usual.Step 2 Revision Show the metals learned in the last period to the class and ask them to name them in English.Step 3 Presentation Read the passage to find the answers to the questions.1. What’s the aim of the experiment?2. What equipment do we need in order to do the experiment?3. How long does it take to see whether iron rusts in the three cases?4. How can we take the air out of water?5. How can oil prevent air entering water?(Show the questions above on the screen.)Step 4 Reading Read the passage individually and then discuss in pairs or groups. It’s a good time to learn the new words and understand the meaning of the passage.Step 5 Call back the answers from the Ss 1. It is to find if iron rusts in dry air, in air － free water or in ordinary water.2. We need some test tubes, test tube holder, cotton wool, oil and Bunsen burner.3. A week.4. We can take air out of water by boiling it.5. Because o...