1、P2 Reading and Vocabulary,Module 5 A Lesson in a Lab,stage conclusion aimreaction electricalequipment react potassium sodium calcium,n. 阶段，时期n. 结论n. 目标，目的n. 反应 adj. 与电有关的;用电的n. 设备，装备vi. (化学)反应n. 钾n. 钠n. 钙,Words review,magnesiumaluminiumzinc partialcopper oxide rust boil ordinary,n. 镁n. 铝n. 锌 adj. 部分
2、的，局部的n. 铜n. 氧化物vi. 生锈vt. 煮沸，煮 adj. 普通的；平常的,Words review,Objectives,1. To understand the two passages about scientific experiments 2. To summarize and retell the main stages of the experiments 3. To learn some useful words and expressions in the passage 4. To learn to describe some other scientific e
3、xperiments,Words: stage reaction conclusion aim equipment ordinary electrical Expressions: react with addto keepout of fillwith putin order Patterns: It is + adj. + to do sth.,Focus on,P44 1,Put these words in the correct order to describe the stages of a scientific experiment.,conclusion aim result
4、 method,When we do an experiment, we should first of all have a/an _. We should use proper _. We should find out the _ and get a/an _.,aim,methods,result,conclusion,Do you know these four words? Do you know their meanings in a scientific experiment?,Aim,Method,Result,Apparatus/ Equipment,Conclusion,
5、+,the elements of a simple scientific experiment,balance 天平,crucible 坩埚,tongs 钳子,test tube 试管,test tube holder试管夹,Bunsen burner本生灯,cotton wool 脱脂棉,Do you know these apparatus?,VS,gas,liquid,Bunsen burner,Alcohol burner,(alcohol),for general ideas,Skimming,Passage A,Choose the best title for Passage
6、A.,A. The Different Uses of Metals B. The Reaction of Metals C. The Reaction of Metals with Oxygen,P44 2,for specific information,Scanning,Passage A,1. Which statement can we get from the first paragraph? A. Metals are very rare in the world. B. Metals react with other substances. C. Metals are only
7、 used in cars. D. All the metals react with water. 2. Which of the following about iron is true according to the table? A. It cant react with water. B. It reacts quickly with oxygen. C. It reacts with steam. D. It is heavier than copper.,Read Passage A and choose the best answers.,Answer the followi
8、ng questions.,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?,P44 3,Now check the answers.,1. Which of
9、the metals in the table reacts the most with oxygen and water?2. What happens when you heat calcium in oxygen?,Potassium, calcium and sodium.,It 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,
10、 aluminium and zinc.,It has a slow reaction.,No, it doesnt.,for general ideas,Skimming,Passage B,What experiment does Passage B show us ? A. How does the nail rust? B. How does iron react with air and with water? C. How do we do an experiment about the reaction of iron?,for specific information,Scan
11、ning,Passage B,1. Why should we add oil to the water in the experiment? A. To make the water clean. B. To protect the iron nails. C. To clean the tube. D. To keep air out of the water. 2. We can learn from the experiment that _. A. how iron rusts with oil B. iron is quite easy to rust C. how we can
12、prevent iron from rusting D. iron rusts in air-free water,Read passage B and choose the best answers.,Read Passage B and fill in the table.,water,water,cotton wool,Iron does not rust.,Iron does not rust.,Iron rusts.,nails,water,Conclusion,Iron rusts neither in dry air nor in air-free water, but in o
13、rdinary water.,P44 4,1. In the first part of the experiment, the _ is dry, not wet. 2. It shows that iron _ when the air is dry. 3. In the second part of the experiment, you must _ the water to make sure there is no _ in it. 4. You add _ to the water because this keeps _ out of it. 5. It shows that
14、_ does not rust in water that has no _ in it.,air,does not rust,boil,air,Complete the sentences.,P46 5,some oil,air,nail,air,apparatus (What to prepare?),How to describean experiment?,aim (Why?),conclusion,result (What can we find?),method (How to do it?),重难点句子分析,Careful Reading,1. When we use metal
15、s, it is important to know how they react with different substances,使用金属时，要了解金属和不同的物质如何发生反应，这一点很重要。,时间状语从句,宾语从句,形式主语,动词不定式短语作真正主语,it作形式主语，真正的主语为动词不定式。常见的句型为： It + be + 形容词 + (for / of sb.) + 动词不定式.,practice,1. 拥有健康生活方式是很重要的。 Its important to have a healthy life style. 2. 认真记录对科学实验的描述是很重要的。It is impo
16、rtant to write down the description of the scientific experiment carefully.,2. Here is a table with the metals that react most at the top, and the metals that react least at the bottom.,下列是一张金属反应表，列于顶部的金属反应最剧烈，下部的则最缓慢。,定语从句,倒装是一种语法手段，常用来强调某一句子成分。例如： Seldom do I go to work by bus. 我很少乘公共汽车上班。,介词短语作定语
17、,倒装还可用来平衡句子结构，避免出现头重脚轻、结构不平衡的现象。例如： On the ground lay some air conditioners, which are to be shipped to some other cities. 地上放着一些空调,等着用船运到其他城市去。,practice,1. 你盼望已久的信在这儿。 Here is the letter you have been looking forward to. 2. There goes the bell, announcing the end of the class.下课铃响了。,Post-reading,ac
18、tivities,Have you done any scientific experiments recently? Think about the stages of one of them and write an experiment report.,Task,An Experiment Report 1. _: 2. _: 3. _:(1)(2)(3) 4. _: 5. _:,Result,Conclusion,Aim,Apparatus,Method,Quiz : Complete the passage with proper words, which will help you
19、 retell the text.,It is hard to think of a world without metals. Different metals have different uses, for example, steel _ cars. It is important to know how metals _ different substances. From the table we can get the answer because the reaction of metals with these substances _.,is put in order,re
20、act with,is used in,Scientific discoveries shape the way we view the world and influence our decisions.,Science teaches people how to think critically.,People use the methods and principles of scientific thinking in everyday life.,Science plays an important role in everyones life. How does it influe
21、nce us?,Learning science helps me to learn more about the world around me and makes me able to answer some questions. I become more confident now. So I want to say,！,！,Now 2 mins to test our spelling.,Spelling Bee,1. English-Chineseconclusion reaction electrical equipment partial ordinary 2. Chinese
22、-English 生锈 煮; 煮沸 目标; 目的 漂浮 (化学)反应 形成 溶解;分解;分离,When finishing, exchange your papers to see who does the best.,Review,课时重点回顾,同发生反应 把按顺序排列 把某物加到其他物质中 防止某物进入其他物质,react with put in order add sth. to sth. elsekeep sth. out of sth.,Homework,1. Read the passage again and review the new words and expressions. 2. Read the articles in LearningEnglish. The more you read, the faster and better youll understand. When finishing reading, write asummary in 100 words or so.,