四川省南充市白塔中學(xué)高一英語 Module5 A lesson in a lab Reading課件

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1、,preitsa labapparatus (儀器儀器) a scientific experiment carrying out （操作）（操作） an experiment successfullybalancetest tube holder試管夾試管夾test tube試管試管crucible坩堝坩堝glass rod rd玻璃棒玻璃棒beakerbi:k 燒杯Bunsen burner本生燈本生燈/煤氣加熱燈煤氣加熱燈 tongstz鉗子鉗子tju:b kru:sbl alcohol burnerCarry out an experiment successfully. Its in

2、teresting 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 it is important to have a discuss

3、ion on the result of the experiment. Dont forget to write down the conclusion.What is the correct order to carry out a scientific experiment?aimmethodresultconclusionapparatus conclusion apparatus aim result method Can we put iron nails (鐵釘)in ordinary water? A Simple Scientific ExperimentBelow is a

4、 description of a simple scientific experiment. It shows us how iron reacts with air and with water. : To find out if iron rusts (a) in dry air; (b) in water that has no air in it (air-free water); (c) in ordinary water. : 3 clean iron nails: test tubes; test tube holder; cotton wool; oil; Bunsen bu

5、rner.Iron in dry air Method 1)Put some iron nails at the bottom of a test tube. 2)Push some cotton wool down the tube. 3)Leave the tube for one week. Result After one week, the mails have not rusted. Conclusion Iron does not rust in dry air. 3. _ Method 1)Half-fill a test tube with water. 2)Boil the

6、 water for three minutes.(This makes sure there is no air in the water.) 3)Put two or three clean nails in the water. 4)Add some oil to the water. This will keep air out of the water. 5)Leave the tube for one week. Result The nails do not rust in the tube with air-free water. Conclusion Iron does no

7、t rust in air-free water. 4. _ Method 1) Half-fill a test tube with water and add two or three clean nails. 2)Leave the tube for one week. Result The nails rust in the tube with ordinary water. 5. _ Iron rusts in ordinary water. A. Conclusion; B. Iron in air-free water; C. Method; D. Result; E, Iron

8、 in ordinary water; F. Apparatus; G. Aim Read the passage and complete the table.cottonwoolnailsIron does not rust.waterIron doesnot rust.waterwaterIron rusts.1.what is the aim of the experiment?A. to find out if iron rusts in dry airB. to find out if iron rusts in water that has no airC. to find ou

9、t if iron rusts in ordinary waterD. all of the above.2.what does the word “half-fill” mean in paragraph 5?A. include something B. mix with a liquidC. cook something in boiling water D. make something half full v3.Which of the following statement is true?The oil can keep air out of water.The _ of thi

10、s experiment is to discover if iron _ (rust) in dry air and in ordinary water. _ (carry) out the experiment, you need the following _ : clean iron nails, two test tubes and some cotton wool. A simple Scientific Experiment The aim / purpose of this experiment is to find out whether- To carry out the

11、experiment properly, you need the following things: -. The steps are as follows. First put -. Next, -. And then, -. Finally you can see- Therefore, we can draw / reach / arrive at the conclusion that - A simple Scientific Experiment The aim / purpose of this experiment is to find out whether iron ru

12、sts in air-free water. To carry out the experiment properly, you need the following things: iron nails, test tubes, oil, tube holders. The steps are as follows. First, half-fill a test tube with water and boil the water for three minutes. Next, put two clean nails in the water. And then, add some oi

13、l to the water and leave the tube for one week. Finally, you can see the nails do not rust in the tube with air-free water. Therefore, we can draw / reach / arrive at the conclusion that iron does not rust in air-free water.Assignment1. Retell one of the experiments. 1. Add some oil to the water 往往水

14、里水里加入一些油加入一些油 Please add some sugar to the bread. 請?jiān)诿姘霞有┨?。請?jiān)诿姘霞有┨?。Add some salt to the soup please. 請往湯里加些鹽。請往湯里加些鹽。Shall I add your name to the list.？我可以把你的名字加進(jìn)名單嗎？我可以把你的名字加進(jìn)名單嗎？A new wing was added to the building. 這棟大樓新添了一座配樓。這棟大樓新添了一座配樓。【句型仿寫句型仿寫】Add these figures up and see what the total is.

15、 把這些數(shù)字加起來，看看總數(shù)是多少。把這些數(shù)字加起來，看看總數(shù)是多少。The costs added up to 10 million American dollars. 費(fèi)用總計(jì)達(dá)費(fèi)用總計(jì)達(dá)1，000萬美元。萬美元。Fireworks added to the attraction of the festival night. 煙花使節(jié)日之夜更具有吸引力。煙花使節(jié)日之夜更具有吸引力?！就卣雇卣埂俊練w納歸納】 _ 增加；增添增加；增添_ 把把加起來加起來_ 總計(jì)，共達(dá)總計(jì)，共達(dá)【助記助記】 巧記巧記add短語短語add toadd upadd up to2.This will keep air

16、 out of the water不讓不讓進(jìn)入；使進(jìn)入；使避開避開, 使不卷入某事使不卷入某事She wore a hat to keep the sun out of her eyes. 她戴著帽子遮陽她戴著帽子遮陽, 保護(hù)眼睛。保護(hù)眼睛。keep the baby out of the sun .別讓孩子曬著。別讓孩子曬著。 Keep that dog out of my bedroom please.請不要讓那狗進(jìn)我的臥室。請不要讓那狗進(jìn)我的臥室。 I advise all of you to keep out of the matter. 我勸你們大家都不要介入此事。我勸你們大家都不要

17、介入此事?！揪湫头聦懢湫头聦憽俊就卣雇卣埂垦a(bǔ)全下列補(bǔ)全下列“keep”短語短語keep(sb. /sth.)_ _ sb. /sth. keep(sb. /sth.) _ sb. /sth. (使某人使某人/物物)遠(yuǎn)離某人遠(yuǎn)離某人/物物keep sth. _ 阻止；隱瞞阻止；隱瞞keep on doingkeep _ 持續(xù)持續(xù)keep _ _ 跟上；與跟上；與保持聯(lián)系保持聯(lián)系away fromoffbackupupwith【高考鏈接高考鏈接】(2012湖北高考湖北高考)Walking alone in the dark, the boy whistled to _ his courage. A. hold up B. keep upC. set up D. take up【解析解析】選選B?？疾閯?dòng)詞短語辨析。句意：獨(dú)自一人在黑暗中?？疾閯?dòng)詞短語辨析。句意：獨(dú)自一人在黑暗中走走, 那個(gè)男孩吹口哨給自己打氣。那個(gè)男孩吹口哨給自己打氣。hold up舉起，耽擱，延遲；舉起，耽擱，延遲；keep up保持，維持；保持，維持；set up建造，創(chuàng)立；建造，創(chuàng)立；take up占據(jù)，開始占據(jù)，開始從事。從事。keep up ones courage 保持勇氣，鼓起勇氣。保持勇氣，鼓起勇氣。