外研版必修一Module 5 A lesson in a Lab Period II reading 课件(共39张PPT).ppt

Passage A Listen to the passage and choose the best title for the passage. The Different Uses of Metals The Reaction of Metals The Reaction of Metals with Oxygen Please read the passage again and answer the questions Which of the metals in the table 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? Passage B Scanning Right or wrong. Iron rusts easily in dry air. To make sure there’s no air in the water, you have to boil the water for 3 minutes. We don’t know whether iron rusts in ordinary water. Listening and detailed-reading a. Fill in the form on P45. b. Finish activity 5. HomeworkCan you write a simple experiment report according to what you learn? Discuss, then write it down. A Simple Scientific Experiment iron doesn’t rust iron doesn’t rust iron rust cotton wool water water nails water Complete the sentences: 1.In the first part of the experiment, the _______ is dry, not wet. 2.It shows that iron____________ when the air is dry. air does not rust 3.In the second part of the experiment, you must_______ the water to make sure there is no ________ in it. 4.You add ________ to the water because this keeps _________out of it. boil air oil air 5.It shows that __________ does not rust in water that has no _______in it. nail air Post-reading In our daily life maybe you always see something rusted, it is not good. How can you solve this problem? Discussion Do you think it is easy or difficult for you to carry out a scientific experiment well? And can you describe how to do it successfully in simple words? If you want to learn science subjects well, what qualities do you think you should have? (Possible answer: We should be careful / serious / diligent / patient / thoughtful /etc.) summary