外研版英语必修一Module5Readingandvocabulary课件

外研版新标准（NSE）高一英语 Book Ⅰ Module 5 A lesson in a lab READING & VOCABULARY What can you see? I can see a lab in the picture. What apparatus do we see in a lab? Look at the pictures collected by our classmates. Do you know the name of these equipment？ test tube tongs balance crucible beaker & glass rod Bunsen burner Since you are interested in doing scientific experiments, now let’s get to know some vocabulary and knowledge related to science and experiment. Potassium （钾） What can it be used for? How about the following metals? Sodium(钠) Calcium(钙) Magnesium(镁) Let’s get to know more! Let’s go on getting to know more metals Aluninium （铝） Zinc （锌） Iron （铁） Copper （铜） ⒈Do you want to know more about these metals? ⒉And do you know how we can use these metals better? Well, this is what we’ll study very soon. Now ,let’s come to see how these metals react with other substances. At first please read through the passage A with the tape of it very quickly to try to catch its main idea . Then finish Activity 2 on page 44 and give your reasons. The reaction of metals with oxygen What is the passage A about? The different uses of metals The reaction of metals Skimming From passage A we can see : how interesting the experiment about the reaction of metals is! But do you know : How we can carry out a chemical experiment in a lab successfully? And what is the correct order to describe a scientific experiment? __________ __________ __________ _________ (1) (2) (3) (4) aim method result conclusion Please read passage A very carefully to find out the answers to the following questions ⒈Which of the metals in the tables reacts the most with oxygen and water? ______________________________________________________ ⒉What happens when you heat calcium in oxygen? _______________________________________________________ ⒊Which metals react with steam? _______________________________________________________ ⒋Does iron have a slow or fast reaction with steam? _______________________________________________________ ⒌Does copper react with water? _______________________________________________________ Potassium, calcium and sodium It burns to form an oxide Magnesium, aluminium and zinc It has a slow reaction No, it doesn’t Careful-reading Let’s come to see “A simple experiment”! Now let’s read through passage B with the tape quickly to fill in the following table(见课本P45图表）: 实验三部分 实验阶段 Iron in dry air Iron in air-free water Iron in ordinary water Stage A (starting experiment) ______ nails oil layer/nails ______ _____ nails Stage B (1 week later) cotton wool ______ oil layer water/nail _____ nails Stage A (result) cotton wool nails water water water Iron does not rust Iron does not rust Iron rusts Think over: in the second part of the experiment,why must you boil the water? And why do you add some oil to the water? Scanning Exercise in class: Finish the following sentences ⒈ In the first part of the experiment, the ______ is dry, not wet. ⒉ It shows that iron _____________ when the air is dry. ⒊ In the second part of the experiment, you must _______ the water to make sure there is no _______ in it. ⒋ You add ________ to the water because this keeps ________ out of it. ⒌ It shows that ________ does not rust in water that has no ______ in it air does not rust boil air some oil air airnail Writing: Since we have known how to do a scientific experiment , please write out a complete scientific experiment report in simple English. Teamwork 参考词汇： scientific--科学的 experiment--实验 Potassium--钾 Calcium--钙 Sodium--钠 Magnesium--镁 Aluminium--铝 Zinc-- 锌 Iron--铁 sulfur--硫 sulfur dioxide--二氧化硫 Copper--铜 reaction--反应 mixture--混合物 compound--化合物 substance--物质 steam---水蒸气 oil--油 boil--沸腾 float--漂浮 form--形成 dissolve--溶解 heat--加 热 expand--膨胀 contract--收缩 rust--生锈 alloys--合金 liquid--液体 gas--气体 solid--固体 oxygen--氧气oxidation 氧化 oxide--氧化物 aluminium oxide-- 氧化铝 iron (III) oxide--氧化铁 hydrogen--氢 气 flame test-- 焰色反应 集气瓶---air collector 燃烧—combustion 燃烧匙--combustion spoon玻璃片-- sheet glass木炭--charcoal火柴--match烧杯--beaker铜绿---patina电极--electrode 水槽--water trough导管--vessel 铁架台--iron stand石棉网--asbestos gauge镊子--nippers 气密性—airtightness 量筒,量杯--graduated flask 药匙--medicine spoon 吸液管--pipette 滤管--filter 搅拌棒--stirring rod 燃烧--combustion 铁支架--siderocradle天平--balance 酒精灯--alcohol burner 坩 埚钳子--crucible tongs 试管--test tube Experiment Report Aim: Apparatus: Result: Conclusion: Method: To find out if iron rusts (a) in pure water (b) in air-free water (c) in dry air 3 clean iron nails; test tubes; cotton wool; oil; Bunsen burner. The nails do not rust in the second and third tubes. Iron doesn’t rust in air-free water or dry air but pure water First, put……at the bottom of…… Next,…… Then,…… Lastly,…… Experiment Report Aim:_______________________________________________ Apparatus:__________________________________________ Result:______________________________________________ Conclusion:__________________________________________ Method:____________________________________________ ___________________________________________________ ___________________________________________________