Module 5 A lesson in a lab-reading （外研版必修1）.ppt

* * A lesson in a lab Module5 Learning Aims Learn some new words and phrases about science 2）learn some knowledge about science 3）To improve ss’reading skill 4)Learn to write a science report 1.What can you see in the picture?  2.What other words can you think of when you look at the picture? science -scientificzx xk experiment apparatus equipment Bunsen burner test tube tube holder tongs balance crucible beaker烧杯 glass rod玻棒 Watch say metal: potassium钾 burn react with cold water form (new substance) GW: Match names of metals to pictures potassium sodium calcium magnesium aluminium zinc iron copper 1.Fast-reading Qs: What should we know when we use metals? It is important to know how they react with different substances. Passages A 2.Here is a table with the metals that react most at the top,and react least at the bottom. Metal Heated in oxygen Reaction with water and steam potassium Burns to form an oxide Reacting with cold water sodium calciumzx xk magnesium Reacting with steam aluminium zinc iron Reacts slowly Partial reaction copper Partial reaction No reacton 3.Practice：Ask and answer in pairs Which metal reacts the most with oxygen and water? What happens when you heat calcium in oxygen? Which metals react with steam? Does iron have a slow or fast reaction with steam? Does copper react with water? Potassium. It burns to form an oxide. Magnesium, aluminium,zinc Slow. No, it doesn’t. 1.For what purpose does the author show the table (within 10 words) 2.Which sentence in Passage A can be replaced by the following one? Using metals, we should know how the metals change when they’re mixed with other substances. 3.Translate the following sentence into Chinese Here is a table with metals that react most at the top, and the met