高中英语 Module 5 A Lesson in a Lab Reading and vocabulary课件 外研必修1

1、What can you see?I can see a lab in the picture.What apparatus do we see in a lab?Where are they?What are they doing?balanceglass rodbeakerBunsen burnerTest tubeTest tube holder坩埚 crucibletongstest tube tongstest tube holder balanceBunsen burner beakercrucible glass rodDo you know how we can carry o

2、ut an experiment successfully?Its interesting to do an experiment. But weve got a lot of things to do before an experiment. First, we should be clear the aim of the experiment, the apparatus we need and how we can carry it out (we call it “method”).We watch whats happening and get the result. Lastly

3、 it is important to have a discussion on the result of the experiment. Dont forget to write down the conclusion.aimmethodresultconclusionPassage ARead through passage A in three minutes.electrical adj. 用电的，与电有关的用电的，与电有关的electricity n.电电equipment n.设备，装备设备，装备react vi. （化学）反应（化学）反应reaction n. 反应反应oxid

4、e n.氧化物氧化物Steam n. 蒸汽，蒸汽， 水气水气Potassiump1钾 potassiump2Sodium钠 sodium Aluminium铝 aluminiumCalcium钙 calciumMagnesium镁 magnesiumZinc锌粒 zincIron铁 ironCopper铜 copperCan you remember them?Please match A with B.AMagnesium IronCalciumAluminiumCopperZincSodiumPotassiumBAlZnNaKFe Ca MgCu Which of the metals i

5、n the table reacts the most with oxygen and water? What happens when you heat calcium in oxygen? Potassium, calcium and sodiumIt burns to form an oxide.3. Which metals react with steam?4. Does iron have a slow or fast reaction with steam?5. Does copper react with water?Magnesium, aluminium and zincI

6、t has a slow reaction.No, it doesnt.scientific experimentapparatusespourconclusionreactsComplete 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.airdoes not rust3.In the second part of the experiment, you must_ the water to make su

7、re there is no _ in it.4.You add _ to the water because this keeps _out of it.boilairoilair5.it shows that _ does not rust in water that has no _in itnailairActivity 4: Reading (Passage B)Read the passage and complete the table.cottonwoolnailsIron does not rust.waterIron doesnot rust.waterwaterIron

8、rusts.1.When we use metals, it is important to know how they react with different substances, react with 意为“对起反应”。An acid can react with a base to form a salt. 酸可以和碱起反应而生成盐。 Iron reacts with water and air to produce rust. 铁与水和空气起化学反应而生锈。react to sb/sth 对作出反应How did they react to your suggestion? 他们对

9、你的建议有什么反应？ She reacted to the insult by turning her back on him 她受辱之后就不再理睬他了。react against sb/sth 反对，反抗react against the political system 反抗政治制度react on sth 对某事物有影响Applause reacts upon a speaker. 鼓掌对演讲人会有影响。 2. The reaction of metals with these substances can be put in order. in order意为“井然有序的；整理好的”

10、。in order有序的， 情况良好out of order无序的， 工作不正常， 出故障by order of 奉的命令， 按的指示place an order with sb for sth on order定购的in order to 为了in order that目的在于； 为了；以便Call the names in order. 请依照次序叫名字。His liver is out of order他的肝脏出了毛病。3.Add some oil to the water.add sth. to sth. 意为“加；增加”。If you add 5 to 5, youll get 10

11、. 5加5等于10。 add to 增加， 增添某物add up to 共计，共达add up 加起来1）These numbers _ 100. 这些数字合计是100。 _ all the money I owe you . 把我应付你的钱都加在一起。add up to Add up 3)The bad weather only _ our difficulties.这种坏天气更增加了 4)Five _ four is nine. 5 加4 等于9。 4.This will keep air out of the water. keep out of 不让（某人/某物）进入（某处）； 使某人

12、避开， 不卷入added to added to Keep that dog out of my study. 别让那条狗进我的书房。Keep the children out of harms way if you take them to the match. 带孩子看比赛，要注意安全She wore a hat to _ _.他戴着帽子遮阳，保护眼睛(不受太阳伤害）。 Keep the sun out of her eyes. Try your best to _ their quarrel. A. keep out B. keep away C. keep out of D. keep

13、 from keep way 不接近，使不接近keep .from 阻止做某事keep off 不接近或不接触某人/某事物C keep sth up 继续保持 keep up 持续不停（尤指天气）keep up with 跟上， 与同步前进。5. Iron does not rust in air-free water.air-free为形容词，意为“没有空气的”。-free用以构成形容词或副词，意为“无，免除”。类似的：carefree adj. 无忧无虑的; 无牵挂的; 轻松愉快的duty-free adj. & adv. 免税的disease-free adj. 无病的worry

14、-free adj. 无忧无愁的 6.Half-fill a test tube with water fill with 意为“使满；填满”。 He filled the bottle with water. 他把瓶子装满水。 Her eyes were filled with tears. 她热泪盈眶。 The result filled his heart with despair. 这样的结果使他心中充满失望。7. Leave the tube for one week. leave意为“放置, 不去动某物, 使 处于某种状态” 。如： Leave the child as he is

15、. 这孩子随他去，别去惹他。 Who left the lights on? 谁没开灯？ Leave a basin of water outside in the weather, and it will soon freeze.在极冷的天把一盆水放在室外, 水很快会结冰。8. aim: eim n. 目标,对准 v. 对准目标,打算1. He aims to be a successful writer. 他的目标是成为一个成功的作家。 2. What is your aim in life? 你的生活目标是什么？ 3. I aimed at the target but hit the wall. 我瞄准了目标射击，但却打在了墙上。 4. My remarks were not aimed at you. 我的话不是针对你的。 aim high 胸怀大志； aim at 瞄准，目标是 take aim at 把目标对准某人、某事物aim to