外研版 (2019)必修第三冊(cè)Unit 3 The world of science導(dǎo)學(xué)案-學(xué)案下載-教習(xí)網(wǎng)

Section Ⅳ　Writing——寫(xiě)一個(gè)實(shí)驗(yàn)報(bào)告

Step Ⅰ　文本研讀Ⅰ.框架建構(gòu)：整體理解Read the passage and fill in the blank.1．This passage tells us ________________________________ when it is put on top of the bottle, from which hot water is poured out.2．Pay attention to the materials and procedure.Ⅱ.文本剖析：特色表達(dá)Try to learn the following useful sentences for experiment report.(第一部分)The experiment is designed to find out what will happen...(實(shí)驗(yàn)?zāi)康?(第二部分)I prepared a boiled egg, a glass bottle and hot water to do the experiment.(實(shí)驗(yàn)器材)First, remove the shell of the egg. Then carefully...Later...After that，...At last...(實(shí)驗(yàn)步驟，注意表示動(dòng)作先后順序的連詞)(第三部分)After the experiment, we can draw the conclusion that...(實(shí)驗(yàn)結(jié)論)Ⅲ.知識(shí)點(diǎn)1．procedure n．程序，步驟，手續(xù)2．the procedure for (doing) sth.做某事的程序3．the correct/proper/normal procedure 正確/合理/標(biāo)準(zhǔn)的步驟Step Ⅱ　Writing an experiment report[文體介紹]英文的實(shí)驗(yàn)報(bào)告主要描述實(shí)驗(yàn)?zāi)康?、?shí)驗(yàn)材料、實(shí)驗(yàn)步驟、實(shí)驗(yàn)結(jié)果和實(shí)驗(yàn)反思等。該文體要求邏輯清晰、語(yǔ)言平實(shí)，要把實(shí)驗(yàn)的過(guò)程表述清楚。[篇章結(jié)構(gòu)]實(shí)驗(yàn)報(bào)告在篇章結(jié)構(gòu)上通常分為三部分：(1)文章開(kāi)頭部分需要介紹一下實(shí)驗(yàn)背景和實(shí)驗(yàn)?zāi)康模?/span>(2)文章主體部分介紹實(shí)驗(yàn)材料和實(shí)驗(yàn)的具體步驟；(3)在最后的結(jié)論部分，交代實(shí)驗(yàn)的結(jié)果和從中學(xué)到的知識(shí)或者道理。[常用表達(dá)](1)介紹實(shí)驗(yàn)背景和實(shí)驗(yàn)?zāi)康牡某Ｓ镁涫剑?/span>?This experiment is designed to...該實(shí)驗(yàn)旨在……?Below is a description of a simple scientific experiment.以下是一份簡(jiǎn)單的科學(xué)實(shí)驗(yàn)的說(shuō)明。?The aim of the experiment is to find out...實(shí)驗(yàn)的目的是了解……?To find out if...，we carried out this experiment.為了弄清楚……，我們做了這個(gè)實(shí)驗(yàn)。?We carry out an experiment to find out...我們做了一個(gè)實(shí)驗(yàn)來(lái)了解……?With the purpose of discovering...為了發(fā)現(xiàn)……(2)文章主體部分常用表達(dá)：?I prepared... to do this experiment.我準(zhǔn)備了……來(lái)做這個(gè)實(shí)驗(yàn)。①make good preparations for...為……做好充分準(zhǔn)備②do the experiment as follows做如下實(shí)驗(yàn)③be under observation被觀察?The following things are needed：...需要準(zhǔn)備以下物品：……?To perform/conduct the experiment, you need the following things...為了做這個(gè)實(shí)驗(yàn)，你需要以下物品……(3)結(jié)論部分常用表達(dá)：⑩After the experiment，I can draw the conclusion that...實(shí)驗(yàn)結(jié)束后，我可以得出……結(jié)論。?From this experiment we can conclude...從這個(gè)實(shí)驗(yàn)中我們可以得出……結(jié)論。?We can learn from the experiment...我們可以從實(shí)驗(yàn)中學(xué)到……?Through the experiment, you can further learn about the theory that...通過(guò)這次實(shí)驗(yàn)，你可以進(jìn)一步了解……理論。?The result of the experiment shows that...實(shí)驗(yàn)的結(jié)果表明……?In conclusion, from what happened in the experiment we can say...綜上所述，根據(jù)實(shí)驗(yàn)中發(fā)生的情況，我們可以看出…… [實(shí)踐應(yīng)用]假定你是李華，請(qǐng)根據(jù)以下提示寫(xiě)一篇實(shí)驗(yàn)報(bào)告。實(shí)驗(yàn)?zāi)康模河^察水的沸騰。實(shí)驗(yàn)步驟：1．在燒杯中放入適量的水；2．把溫度計(jì)放到水中；3．點(diǎn)燃酒精燈，仔細(xì)觀察溫度計(jì)和水的變化。實(shí)驗(yàn)結(jié)果：1．水溫在60℃以下時(shí)，隨著水溫不斷升高，杯底氣泡(bubble)越來(lái)越多，有少量氣泡上升；2．水溫在60～90℃之間時(shí)，杯底氣泡逐漸減少，氣泡上升逐漸加快；3．水溫達(dá)到100℃時(shí)，氣泡上升最快，水面氣泡最多，溫度不再變化。實(shí)驗(yàn)結(jié)論：水在100℃時(shí)開(kāi)始沸騰。參考詞匯：燒杯beaker；溫度計(jì)thermometer；酒精燈alcohol burner注意：1.詞數(shù)80左右；2．可適當(dāng)增加細(xì)節(jié)，以使行文連貫。第一步　布局謀篇

第二步　遣詞造句完成句子1．設(shè)計(jì)該實(shí)驗(yàn)的目的是觀察水沸騰時(shí)的溫度及發(fā)生的變化。This experiment ________________________ the temperature when water boils and what happens in water during boiling.2．為了做實(shí)驗(yàn)，我準(zhǔn)備了以下器材：水、一個(gè)溫度計(jì)、一個(gè)燒杯和一盞酒精燈。________________________，I prepared the following equipment: water, a thermometer, a beaker and an alcohol burner.3．現(xiàn)在你能夠看到，當(dāng)溫度達(dá)到100℃時(shí)，大量的氣泡會(huì)從杯底上升至水面。Now you can see that ______________________，plenty of bubbles rise from the bottom of the beaker to the water surface.4．實(shí)驗(yàn)后，我可以得出結(jié)論：水在100℃時(shí)開(kāi)始沸騰，另外大量的氣泡會(huì)在沸騰時(shí)上升至水面。After the experiment, I can draw a conclusion: water starts boiling at 100 degrees centigrade ________________________．句式升級(jí)5．用that引導(dǎo)的主語(yǔ)從句、with復(fù)合結(jié)構(gòu)改寫(xiě)句3。Now ________________________ plenty of bubbles rise from the bottom of the beaker to the water surface __________________________________________．6．用that引導(dǎo)的同位語(yǔ)從句、while引導(dǎo)的時(shí)間狀語(yǔ)從句改寫(xiě)句4。After the experiment, I can draw a conclusion ________________________ at 100 degrees centigrade ________________________________ during the boiling.第三步　完美成篇________________________________________________________________________________________________________________________________________________________________________________________________________________________ Section Ⅳ　Writing——寫(xiě)一個(gè)實(shí)驗(yàn)報(bào)告寫(xiě)作精析·技能提升Step Ⅰ　文本研讀Ⅰ.框架建構(gòu)：整體理解1．what will happen to the boiled eggStep Ⅱ　Writing an experiment report第二步1．is designed to observe2．To carry out the experiment3．when the temperature reaches 100 degrees centigrade4．with plenty of bubbles rising to the surface during boiling5．it can be seen that; with the temperature reaching 100 degrees centigrade6．that water starts boiling; while plenty of bubbles rise to the surface第三步This experiment is designed to observe the temperature when water boils and what happens in water during boiling. To carry out the experiment, I prepared the following equipment: water, a thermometer, a beaker and an alcohol burner.Procedure：First, half-fill the beaker with water. Then put the thermometer in it. Finally, light the alcohol burner and heat the water, and observe the readings of the thermometer. Now it can be seen that plenty of bubbles rise from the bottom of the water surface with the temperature reaching 100 degrees centigrade.After the experiment, I can draw a conclusion that water starts boiling at 100 degrees centigrade while plenty of bubbles rise to the surface during the boiling.

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