[名校联盟]山西省吕梁市石楼县石楼中学高一英语必修一 Module5 精品课件+听力（11份）

外研版 高一年级 (必修1) Module 5 tongs crucible dissolve solid/liquid/gas balance Bunsen burner test tube 1. (a) Water exists as a solid, a liquid and a gas. (b) Water exists as a solid and a liquid only. 2. (a) When you heat a metal, it expands. (b) When you heat a metal, it contracts. Guess, listen and check the answer. Listening 3. (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 earth’s surface is water. (b) 50% of the earth’s surface is water. 5. (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. 7. (a) The earth is twice as large as the moon. (b) The earth is forty-nine times larger than the moon. Put the words in pairs or groups. contract air earth gas liquid oxygen moon solid expand sun air – gas - oxygen contract - expand earth – sun - moon gas – liquid - solid 1 2 3 4 1. liquid: 液体 2. expand: vi. 使......膨胀 Metals expand when they are heated. 3. contract vi. 收缩 Metals contract as they get cooler. 4. substance n. 物质 5. mixture n. 混合物 6. oxygen 氧气 7. electricity n.电 Answer the questions. Which of the above are natural? Electricity, iron, some metals and air are natural. 2. Which are man-made? Steel, some metals and glass are man-made. electricity iron metal steel air glass 3. Which can be both? Electricity and some metals (alloys for example) can be man-made and occur naturally. Listening and writing You will hear a conversation in which a teacher helps a student do an experiment. Read the Aim below and predict the Result. Aim: To find out if there is a change in weight when the metal magnesium burns in air. Result:__________________________. Aim: ____________________________ ______________