高中英語(yǔ) 5 英漢對(duì)照同步導(dǎo)學(xué)課件 外研必修1 新課標(biāo) （山東專）

1、2021/8/11 星期三12021/8/11 星期三2Passage AIt is hard to think of a world without metals.Different metals have different uses，for example，steel is used in cars，and iron is used in electrical equipment.When we use metals，it is important to know how they react with different substances，for example，water and

2、 oxygen.The reaction of metals with these substances can be put in order.Here is a table with the metals that react most at the top，and the metals that react least at the bottom.2021/8/11 星期三3MetalHeated in oxygenReaction withwater or steamPotassiumBurns to form an oxide*Reacting withcold waterSodiu

3、mCalciumMagnesiumReacting withsteamAluminiumZincIronReacts slowlyPartial reactionCopperPartial reactionNo reaction2021/8/11 星期三4* an oxideanother substanceoxygenPassage BA Simple Scientific ExperimentBelow is a description of a simple scientific experiment.It shows us how iron reacts with air and wi

4、th water.Aim: To find out if iron rusts (a) in dry air；(b) in water that has no air in it (airfree water)；(c) in ordinary water.2021/8/11 星期三5Apparatus: 3 clean iron nails；test tubes；test tube holder；cotton wool；oil；Bunsen burner.Iron in dry airMethod(1) Put some iron nails at the bottom of a test t

5、ube.(2) Push some cotton wool down the tube.(3) Leave the tube for one week.2021/8/11 星期三6ResultAfter one week，the nails have not rusted.ConclusionIron does not rust in dry air.Iron in airfree water2021/8/11 星期三7Method(1) Halffill a test tube with water.(2) Boil the water for three minutes.(This mak

6、es 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.2021/8/11 星期三8ResultThe nails do not rust in the tube with airfree water.ConclusionIron does not rust in airfree water

7、.Iron in ordinary water2021/8/11 星期三9Method(1) Halffill a test tube with water and add two or three clean nails.(2) Leave the tube for one week.ResultThe nails rust in the tube with ordinary water.ConclusionIron rusts in ordinary water.2021/8/11 星期三10文章A很難想象一個(gè)沒(méi)有金屬的世界。不同的金屬有不同的用途，比如，鋼材用于汽車中，鐵用于電氣設(shè)備(e

8、lectrical equipment)中。當(dāng)我們使用金屬時(shí)，了解它們與不同的物質(zhì)如何反應(yīng)(react)很重要，比如，水和氧氣。(不同的)金屬與這些物質(zhì)的反應(yīng)(reaction)程度可以按順序排列。表中金屬反應(yīng)最強(qiáng)的排在上面，反應(yīng)最弱的排在下面。2021/8/11 星期三11 金屬在氧氣中加熱跟水或蒸汽反應(yīng)鉀(potassium)燃燒生成(form) 氧化物(oxide)跟冷水反應(yīng)鈉 (sodium)鈣 (calcium)鎂 (magnesium)跟蒸汽反應(yīng)鋁 (aluminium)鋅 (zinc)鐵反應(yīng)緩慢局部反應(yīng)銅 (copper)局部 (partical)反應(yīng)無(wú)反應(yīng)2021/8/11 星

9、期三12*一種氧化物另一種物質(zhì)氧 文章B一個(gè)簡(jiǎn)單的科學(xué)實(shí)驗(yàn)下面是對(duì)一個(gè)簡(jiǎn)單的科學(xué)實(shí)驗(yàn)的描述。它向我們展示鐵如何與空氣和水反應(yīng)。目的：為了弄清鐵在下列情況下是否生銹(rust)(a)在干燥的空氣中；(b)在沒(méi)有空氣的水中；(c)在普通的(ordinary)水中。2021/8/11 星期三13儀器：3枚干凈的鐵釘；試管；試管架；棉球；油；本生酒精燈。鐵在干燥的空氣中方法(1)把幾枚鐵釘放入試管底部。(2)把一些棉球放入試管。(3)將試管放置一周。2021/8/11 星期三14結(jié)果一周后，鐵釘沒(méi)有生銹。結(jié)論 (conclusion)鐵在干燥的空氣中不生銹。鐵在沒(méi)有空氣的水中2021/8/11 星期三

10、15方法(1)在試管中注入一半水。(2)把水煮 (boil) 3分鐘。(這樣可以確保水中沒(méi)有空氣。)(3)把2到3枚干凈的鐵釘放入水中。(4)在水中加入(add.to.) 一些油。這將防止空氣進(jìn)入水中。(5)將試管放置一周。2021/8/11 星期三16結(jié)果鐵釘在沒(méi)有空氣的水中沒(méi)有生銹。結(jié)論鐵在沒(méi)有空氣的水中不生銹。鐵在普通的水中2021/8/11 星期三17方法(1)在試管中注入一半水，加入2到3枚干凈的鐵釘。(2)將試管放置一周。結(jié)果鐵釘在盛有普通的水的試管中生銹了。結(jié)論鐵在普通的水中生銹。2021/8/11 星期三18My feelings about science have real

11、ly changed.I never used to enjoy science，but last year I changed schools，and the science teachers at my new school are excellent.The science facilities are very good，with laboratories that have all the latest equipment.Our chemistry teacher，Mr Longford，takes us to public science lectures about four

12、times a term，and these are always very interesting，2021/8/11 星期三19as the lecturers are people who have made real discoveries in their area of science.The fact is，Canada has many firstclass scientists.In the last twenty years，seven Canadian scientists have won the Nobel Prize！The Nobel Prize is the h

13、ighest scientific prize there is，so we should be very proud of that.2021/8/11 星期三20Im becoming more and more interested in physics，and have decided that I want to study it at university.Im going to try to go to either Montreal or Ottawa University，as both are supposed to have good Physics Departments.My parents are astonished.They always thought I would become an English teacher！2021/8/11 星期三21我對(duì)理科的感受真的改變了。過(guò)去(used to)我從不喜歡理科，但是去年我轉(zhuǎn)學(xué)了，我的新學(xué)校的理科老師很棒?？蒲性O(shè)備(facility)很好，有配備了最新設(shè)備的實(shí)驗(yàn)室。我們的化學(xué)老師朗福德先生大約每學(xué)期帶我們?nèi)ヂ?tīng)四次公共科學(xué)講座(lecture)，這些講座總是非常有趣，因?yàn)檠葜v者都是一些在各自的科學(xué)領(lǐng)域(in the area of)真正有所發(fā)現(xiàn)的人。事實(shí)是，加拿大有很多一流的科學(xué)家