山西省吕梁市石楼县石楼中学高中英语 Module5 Introduction & Listening 精品课件 外研必修1.ppt
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1、外研版外研版 高一年级高一年级(必修必修1)Module 5英英语课件件2021/8/8 星期日1 Introduction and 2021/8/8 星期日22021/8/8 星期日3tongs crucibledissolve2021/8/8 星期日4solid/liquid/gas2021/8/8 星期日5balanceBunsen burnertest tubetest tube2021/8/8 星期日61.(a)Water exists as a solid,a liquid and a gas.(b)Water exists as a solid and a liquid only
2、.2.(a)When you heat a metal,it expands.(b)When you heat a metal,it contracts.Guess,listen and check the answer.Listening 2021/8/8 星期日73.(a)Steel is a mixture of iron and other substances.(b)Steel is a mixture of iron and oxygen.4.(a)Two-thirds of the earths surface is water.(b)50%of the earths surfa
3、ce is water.2021/8/8 星期日85.(a)The distance of the sun from the earth is 25,5000 kilometres.(b)The distance of the sun from the earth is 150,500,500 kilometers.6.(a)The earth is 4.6 million years old.(b)The earth is 4.6 billion years old.2021/8/8 星期日97.(a)The earth is twice as large as the moon.(b)Th
4、e earth is forty-nine times larger than the moon.2021/8/8 星期日10Put the words in pairs or groups.contract air earth gas liquid oxygen moon solid expand sun1234air gas-oxygencontract-expandearth sun-moongas liquid-solid2021/8/8 星期日111.liquid:液体液体2.expand:vi.使使.膨胀膨胀 Metals expand when they are heated.3
5、.contract vi.收缩收缩Metals contract as they get cooler.4.substance n.物质物质 5.mixture n.混合物混合物6.oxygen 氧气氧气7.electricity n.电电2021/8/8 星期日12Answer the questions.1.Which of the above are natural?2.Electricity,iron,some metals and air are natural.2.Which are man-made?Steel,some metals and glass are man-made
6、.electricity iron metal steel air glass 2021/8/8 星期日133.Which can be both?Electricity and some metals(alloys for example)can be man-made and occur naturally.2021/8/8 星期日14Listening and writing You will hear a conversation in which a teacher helps a student do an experiment.Read the Aim below and pre
7、dict the Result.Aim:To find out if there is a change in weight when the metal magnesium burns in air.Result:_.2021/8/8 星期日15Aim:_ _ _To find out if theres a change in weight when magnesium burns in air.Listen and complete the description of the scientific experiment.2021/8/8 星期日16Apparatus:_ _Method
8、:_ _ _ _ _ _ _Magnesium,Bunsen burner,a balance,a crucible.First,put the magnesium in the crucible.Then put the crucible on the balance and weigh it.Next,heat the magnesium.Light the Bunsen burner and hole the crucible over it.Finally weigh the magnesium again.2021/8/8 星期日17Result:_Conclusion:_ _ _I
9、t weighs a little more than before.There is a change in weight when magnesium burns in air.2021/8/8 星期日181.“Where do we go from here?”means _.A.What shall we do next?B.Is this the right way?2.“Keep the noise down”means_.A.Dont talk B.Talk quietly Choose the correct meaning.2021/8/8 星期日193.“Youve got
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