外研社高中英语必修一Module 5 A Lesson in a Lab reading 课件（共16张ppt）

课件16张PPT。Module 5A lesson in a lab ReadingWe can draw a conclusion that it is important for us to read books. It is our aim to build up a harmonious society. It is a piece of electrical equipment. The wheel is made of aluminum. Nails are easy to rust in the damp air. Water boils at 100 °C. It's difficult to keep a balance between work and family.Put these words in the correct order to describe the stages of a scientific experiment. aim--method--result--conclusionconclusion aim result method↓Read the passage as quickly as you can and choose the best title for it.The Different Uses of Metals The Reaction of Metals The Reaction of Metals with Oxygen Passage A√1. The first sentence “It is hard to think of a world without metals” will make us think____ A .metals make up the world B. metals play a greatly important role in the world C. there would be no world if there were no metals D. it is difficult for us to live in the world of metals 2. The table in the passage is arranged in order of _____. A. metal kinds B. reaction activities C. values of metal D. the first letters of the words√√1.Which of the metals in the table reacts the most with oxygen and water? 2.What happens when you heat calcium in oxygen? 3.Which metals react with steam? 4.Does iron have a slow or fast reaction with steam? 5.Does copper react with water?Potassium,calcium and sodiumIt burns to form an oxide.Magnesium,Aluminium and zinc.It has a slow reaction.No, it doen’t. cotton woolwater water water Iron does not rust Iron does not rust Iron rusts Passage B1. Which is required as one of the apparatuses （器材） in the experiment of “Iron in ordinary water”? A Oil B Cotton C Bunsen burner D Test tube holder 试管夹 2.Which is Not the apparatus that is needed in the experiment of“Iron in dry air” ? A. Cotton wool B. Oil C. Iron nails D. Test tube holder 3. The purpose of the experiment is ____ A .to find out how iron reacts with water and air B. to find out how important iron is C. to find out how to do the experiment of iron’s reaction with water and air D. to find out how to keep iron rustless√√√1.What is on the surface of the water in the test tube? 2.What is the use of the oil? 3.What is the use of the cotton wool in the test tube? 4.Why are the nails in the test tube with ordinary water rusty? Oil. The oil can keep air out of water.The cotton wool can keep air dry.Iron reacts with water and forms rust.Phrases三分之二 想出，想到 与……反应 按顺序排列 在顶端 在底端 科学实验 查明，找出 没有空气的水 试管 确保 把……加入 不让……进入 用……装满