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外研版 (2019)必修 第三册Unit 3 The world of science课后作业题
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这是一份外研版 (2019)必修 第三册Unit 3 The world of science课后作业题，共12页。试卷主要包含了词数80左右;，可以适当增加细节,以使行文连贯， adv， 换句话说， 使……分裂开等内容，欢迎下载使用。
写作题目
假定你是李华,你校英文报最近开创了一个叫做 “Interesting Experiments”的新栏目,现面向全体学生征集稿件。下表中罗列了你在化学课上刚刚做过的实验内容,请你写一份英文实验报告向校英文报投稿。
参考词汇:生的raw 蛋壳eggshell
溶解 disslve 碳酸钙 calcium carbnate
注意:1.词数80左右;
2.可以适当增加细节,以使行文连贯。
思路点拨
遣词造句
Ⅰ.用本单元所学单词或短语填空
1. n.实验
2. n.步骤
3. adv.完全地,彻底地
4. 换句话说
5. 使……分裂开
答案 1.experiment 2.prcedure 3.entirely
4.in ther wrds 5.break apart
Ⅱ.本单元语块、语法运用
1.完成句子
(1)把鸡蛋放在准备好的碗里。
Put the egg in .
(2)它必须足够大,能放下鸡蛋和醋。
It must be the egg and vinegar.
(3)蛋壳完全溶解在醋里。
Eggshells in vinegar.
(4)那是因为醋里含有酸。
vinegar cntains acid.
(5)它能分解蛋壳中的主要成分碳酸钙。
It breaks apart the calcium carbnate
.
答案 (1)the prepared bwl (2)big enugh t hld (3)disslve entirely (4)That's because
(5)that is the main ingredient f eggshells
2.句式升级
(6)用含有定语从句的句子合并句(1)和句(2)
(7)用含有定语从句的句子合并句(4)和句(5)
答案 (6)Put the egg in the prepared bwl, which must be big enugh t hld the egg and vinegar.
(7)That's because vinegar cntains acid, which breaks apart the calcium carbnate that is the main ingredient f eggshells.
连句成篇
参考范文
Aim:D an experiment t find ut whether/if the eggshells disslve in vinegar.
Materials:water, bwl, spn, egg, vinegar
Prcedure:
1.Wash a raw egg with shell in the water.
2.Put the egg in the prepared bwl, which must be big enugh t hld the egg and vinegar.
3.Add enugh vinegar with the spn t cver the egg.
4.Cver the bwl, put it n the table, and then keep the egg in vinegar fr 48 hurs.
Result:The eggshells disslve. In ther wrds, the eggshells disappear in vinegar.
Cnclusin:Eggshells disslve entirely in vinegar. That's because vinegar cntains acid, which breaks apart the calcium carbnate that is the main ingredient f eggshells.
写作积累
(一)增色词汇
1.实验目的:aim;gal;purpse;prve;phenmenn;whether;in the hpe f;in rder t;carry ut an experiment...
2.实验步骤:firstly;secndly;thirdly;then;react;prepare;besides;
finally;what's mre;in additin;as fllws;at last;last but nt least;pay attentin t;watch carefully;take nte f...
3.实验结论:data;shw;cnclude;draw/reach a cnclusin;in cnclusin;sum up;in a wrd;n the whle;all in all;in ther wrds...
(二)精彩句型
1.T find ut if/whether..., we carried ut this experiment.
2.With the purpse f..., we are ging t carry ut an experiment.
3.Thrugh the experiment, yu can further learn abut the thery f...
4.The result f the experiment shws...
5.In cnclusin, frm what happened in the experiment, we can say...
实战演练
()
假定你是某国际学校的学生,在今天的化学课上,老师做了镁在空气中燃烧的实验,并要求每人在课后为这次实验写一篇英文实验报告。请根据表格中的内容完成这篇报告。
参考词汇:镁条magnesium bar
钳子 tngs
本生灯Bunsen burner
注意:1.词数80左右;
2.可以适当增加细节,以使行文连贯。
概要写作
写作题目
阅读下面短文,根据其内容写一篇60词左右的内容概要。
Schl unifrms are becming mre and mre ppular acrss the 's n surprise, because they ffer many benefits. They immediately end the pwerful scial srt and label(标记) that cme frm clthing. If all students are dressed in the same way, they will nt pay t much attentin t their clthing, and sme f them will nt be laughed at fr wearing the “wrng” clthes.
Sme peple are against the strict rule f schl unifrms, but they d nt realize that students already accept a kind f rule—wanting t lk just like their friends. The difference is that the clthing students chse fr themselves creates scial barriers (障碍); schl unifrms tear thse barriers dwn.
As in ther places, unifrms remind the wearers f their purpses and duties. Fr example, when a man r wman puts n a plice unifrm, he r she becmes, fr a time, the symbl (象征) f law and rder. The unifrm means t the wearer his r her special duties and sends the same message t everyne the wearer meets. Peple with different jbs wear unifrms f ne kind r anther. Fr students, the schl unifrm reminds them that their task fr the six r seven hurs when they are in schl is t get an educatin.
Sme parents are unhappy abut unifrms, saying that schl unifrms will affect their children's “creativity”. Actually, as nted abve, the clthes students chse t wear d nt necessarily express their individuality. They just cpy their classmates. Students have the rest f the day t be as creative as they like. While they're in schl, their jb is t master reading, writing, and mathematics; this shuld take up all the creativity they have. Mastery f thse skills will be gd fr the students t build up their creativity in every way.
文本分析
Ⅰ.语篇解读
本文是一篇议论文。校服在美国越来越受欢迎,因为校服有很多好处。但也有人反对严格的校服规定;一些家长指责孩子穿校服缺乏创造力,但真正的创造力是建立在他们通过学校教育掌握知识和技能的基础上的。
Ⅱ.段落主题
本文是典型的“总——分”结构,即“引出话题——分析问题”,结构明确,要点清晰。 全文共分为四段。每段的中心大意如下:
第一段:校服在美国越来越受欢迎,因为校服有很多好处;
第二段:有些人反对严格的校服规定,但校服满足了学生想穿得和同学一样的愿望,这可以消除社会障碍;
第三段:制服是对目的和责任的提醒,而学校的校服提醒学生接受教育是他们的主要任务;
第四段:一些家长指责孩子穿校服缺乏创造力,但真正的创造力是建立在他们通过学校教育掌握知识和技能的基础上的。
筛选信息
第一段:Schl unifrms are becming mre and mre ppular acrss the 's n surprise, because they ffer many benefits.
第二段: Sme peple are against the strict rule f schl unifrms. The clthing students chse fr themselves creates scial barriers (障碍); schl unifrms tear thse barriers dwn.
第三段:As in ther places, unifrms remind the wearers f their purpses and duties. Fr students, the schl unifrm reminds them that their task fr the six r seven hurs when they are in schl is t get an educatin.
第四段:Sme parents are unhappy abut unifrms, saying that schl unifrms will affect their children's “creativity”. Students have the rest f the day t be as creative as they like. While they're in schl, their jb is t master reading, writing, and mathematics; this shuld take up all the creativity they have. Mastery f thse skills will be gd fr the students t build up their creativity in every way.
转换表达
要点1 第一段主题句可概括为要点1,主题句中的 可改为prevail;ffer many benefits可改为短语 。
要点2 第二段主题句可概括为要点2,主题句中的 可改为are ppsed t;tear thse barriers dwn 可改为短语 。
要点3 第三段主题句可概括为要点3,主题句中的 可替换为respnsibilities; 可改为are a reminder f purpses and respnsibilities;Fr students, the schl unifrm reminds them that their task fr the six r seven hurs when they are in schl is t get an educatin. 可整合为 。
要点4 第四段主题句可概括为要点4,主题句中的Sme parents are unhappy abut unifrms, saying that schl unifrms will affect their children's “creativity”.可转换为 ;Students have the rest f the day t be as creative as they like. While they're in schl, their jb is t master reading, writing, and mathematics; this shuld take up all the creativity they have. Mastery f thse skills will be gd fr the students t build up their creativity in every way.可整合为 。
答案 要点1 are becming mre and mre ppular; benefit students a lt
要点2 are against; end scial barriers
要点3 duties;remind the wearers f their purpses and duties;Schl unifrms remind students receiving an educatin is their majr task.
要点4 Sme parents blame kids' being less creative n wearing unifrms.;Real creativity is based n their mastery f knwledge and skills thrugh schling.
连句成篇
参考范文
Schl unifrms prevail thrughut the as they benefit students a lt.(要点1)While sme peple are ppsed t them, schl unifrms satisfy students' desire t dress similarly like their classmates, which can end scial barriers. (要点2)Unifrms are a reminder f purpses and respnsibilities, and schl unifrms remind students receiving an educatin is their majr task. (要点3)Sme parents blame kids' being less creative n wearing unifrms, but real creativity is based n their mastery f knwledge and skills thrugh schling. (要点4)
写作积累
表“结果”的过渡词
s因而;这样;如此
thus因此
therefre因此
hence从此;由此
accrdingly所以
as a result 结果;因此
cnsequently因此;所以
in cnsequence结果;因此
as a cnsequence因此;结果
表“条件”的过渡词
n cnditin that...在……条件下
as/s lng as只要
if s 如果这样
if pssible如果可能的话
prvided that如果
答案全解全析
实战演练
One pssible versin:
Aim:Find ut whether the magnesium reacts with the air.
Materials:a pair f tngs, a Bunsen burner, a bx f matches, a magnesium bar
Prcedure:
1.Light the Bunsen burner with a match.
2.Use the tngs t hld the magnesium bar prepared in advance.
3.Hang the magnesium bar ver the Bunsen burner t see what will happen.
Result:The magnesium bar releases strng and white lights and heat, frming a small amunt f white pwder.
Cnclusin:Magnesium, a lively metal, can react with air. In additin, after burning, it can frm a kind f new substance called magnesium xide.
实验目的
验证蛋壳在醋中是否会溶解
实验用具
水、碗、小勺、鸡蛋、醋
实验步骤
(1)将带壳的生鸡蛋在清水中洗干净;
(2)将鸡蛋放入准备好的碗中;
(3)在碗中加入足够量的醋;
(4)静置两天。
实验结果
蛋壳在醋中溶解
主题
蛋壳在醋中
是否会溶解
体裁
实验报告
人称
以第三人称为主
时态
一般现在时
布局
1.实验目的 2.实验用具 3.实验步骤 4.实验结果
实验目的
验证镁是否会和空气发生反应
实验用具
钳子,本生灯,火柴,镁条
实验步骤
(1)用火柴点燃本生灯;
(2)用钳子夹住镁条;
(3)将镁条置于本生灯上方,观察现象。
实验现象
镁条剧烈燃烧,发出耀眼白光,放热,并生成白色粉末
实验结论
镁会和空气发生反应
写作题目
假定你是李华,你校英文报最近开创了一个叫做 “Interesting Experiments”的新栏目,现面向全体学生征集稿件。下表中罗列了你在化学课上刚刚做过的实验内容,请你写一份英文实验报告向校英文报投稿。
参考词汇:生的raw 蛋壳eggshell
溶解 disslve 碳酸钙 calcium carbnate
注意:1.词数80左右;
2.可以适当增加细节,以使行文连贯。
思路点拨
遣词造句
Ⅰ.用本单元所学单词或短语填空
1. n.实验
2. n.步骤
3. adv.完全地,彻底地
4. 换句话说
5. 使……分裂开
答案 1.experiment 2.prcedure 3.entirely
4.in ther wrds 5.break apart
Ⅱ.本单元语块、语法运用
1.完成句子
(1)把鸡蛋放在准备好的碗里。
Put the egg in .
(2)它必须足够大,能放下鸡蛋和醋。
It must be the egg and vinegar.
(3)蛋壳完全溶解在醋里。
Eggshells in vinegar.
(4)那是因为醋里含有酸。
vinegar cntains acid.
(5)它能分解蛋壳中的主要成分碳酸钙。
It breaks apart the calcium carbnate
.
答案 (1)the prepared bwl (2)big enugh t hld (3)disslve entirely (4)That's because
(5)that is the main ingredient f eggshells
2.句式升级
(6)用含有定语从句的句子合并句(1)和句(2)
(7)用含有定语从句的句子合并句(4)和句(5)
答案 (6)Put the egg in the prepared bwl, which must be big enugh t hld the egg and vinegar.
(7)That's because vinegar cntains acid, which breaks apart the calcium carbnate that is the main ingredient f eggshells.
连句成篇
参考范文
Aim:D an experiment t find ut whether/if the eggshells disslve in vinegar.
Materials:water, bwl, spn, egg, vinegar
Prcedure:
1.Wash a raw egg with shell in the water.
2.Put the egg in the prepared bwl, which must be big enugh t hld the egg and vinegar.
3.Add enugh vinegar with the spn t cver the egg.
4.Cver the bwl, put it n the table, and then keep the egg in vinegar fr 48 hurs.
Result:The eggshells disslve. In ther wrds, the eggshells disappear in vinegar.
Cnclusin:Eggshells disslve entirely in vinegar. That's because vinegar cntains acid, which breaks apart the calcium carbnate that is the main ingredient f eggshells.
写作积累
(一)增色词汇
1.实验目的:aim;gal;purpse;prve;phenmenn;whether;in the hpe f;in rder t;carry ut an experiment...
2.实验步骤:firstly;secndly;thirdly;then;react;prepare;besides;
finally;what's mre;in additin;as fllws;at last;last but nt least;pay attentin t;watch carefully;take nte f...
3.实验结论:data;shw;cnclude;draw/reach a cnclusin;in cnclusin;sum up;in a wrd;n the whle;all in all;in ther wrds...
(二)精彩句型
1.T find ut if/whether..., we carried ut this experiment.
2.With the purpse f..., we are ging t carry ut an experiment.
3.Thrugh the experiment, yu can further learn abut the thery f...
4.The result f the experiment shws...
5.In cnclusin, frm what happened in the experiment, we can say...
实战演练
()
假定你是某国际学校的学生,在今天的化学课上,老师做了镁在空气中燃烧的实验,并要求每人在课后为这次实验写一篇英文实验报告。请根据表格中的内容完成这篇报告。
参考词汇:镁条magnesium bar
钳子 tngs
本生灯Bunsen burner
注意:1.词数80左右;
2.可以适当增加细节,以使行文连贯。
概要写作
写作题目
阅读下面短文,根据其内容写一篇60词左右的内容概要。
Schl unifrms are becming mre and mre ppular acrss the 's n surprise, because they ffer many benefits. They immediately end the pwerful scial srt and label(标记) that cme frm clthing. If all students are dressed in the same way, they will nt pay t much attentin t their clthing, and sme f them will nt be laughed at fr wearing the “wrng” clthes.
Sme peple are against the strict rule f schl unifrms, but they d nt realize that students already accept a kind f rule—wanting t lk just like their friends. The difference is that the clthing students chse fr themselves creates scial barriers (障碍); schl unifrms tear thse barriers dwn.
As in ther places, unifrms remind the wearers f their purpses and duties. Fr example, when a man r wman puts n a plice unifrm, he r she becmes, fr a time, the symbl (象征) f law and rder. The unifrm means t the wearer his r her special duties and sends the same message t everyne the wearer meets. Peple with different jbs wear unifrms f ne kind r anther. Fr students, the schl unifrm reminds them that their task fr the six r seven hurs when they are in schl is t get an educatin.
Sme parents are unhappy abut unifrms, saying that schl unifrms will affect their children's “creativity”. Actually, as nted abve, the clthes students chse t wear d nt necessarily express their individuality. They just cpy their classmates. Students have the rest f the day t be as creative as they like. While they're in schl, their jb is t master reading, writing, and mathematics; this shuld take up all the creativity they have. Mastery f thse skills will be gd fr the students t build up their creativity in every way.
文本分析
Ⅰ.语篇解读
本文是一篇议论文。校服在美国越来越受欢迎,因为校服有很多好处。但也有人反对严格的校服规定;一些家长指责孩子穿校服缺乏创造力,但真正的创造力是建立在他们通过学校教育掌握知识和技能的基础上的。
Ⅱ.段落主题
本文是典型的“总——分”结构,即“引出话题——分析问题”,结构明确,要点清晰。 全文共分为四段。每段的中心大意如下:
第一段:校服在美国越来越受欢迎,因为校服有很多好处;
第二段:有些人反对严格的校服规定,但校服满足了学生想穿得和同学一样的愿望,这可以消除社会障碍;
第三段:制服是对目的和责任的提醒,而学校的校服提醒学生接受教育是他们的主要任务;
第四段:一些家长指责孩子穿校服缺乏创造力,但真正的创造力是建立在他们通过学校教育掌握知识和技能的基础上的。
筛选信息
第一段:Schl unifrms are becming mre and mre ppular acrss the 's n surprise, because they ffer many benefits.
第二段: Sme peple are against the strict rule f schl unifrms. The clthing students chse fr themselves creates scial barriers (障碍); schl unifrms tear thse barriers dwn.
第三段:As in ther places, unifrms remind the wearers f their purpses and duties. Fr students, the schl unifrm reminds them that their task fr the six r seven hurs when they are in schl is t get an educatin.
第四段:Sme parents are unhappy abut unifrms, saying that schl unifrms will affect their children's “creativity”. Students have the rest f the day t be as creative as they like. While they're in schl, their jb is t master reading, writing, and mathematics; this shuld take up all the creativity they have. Mastery f thse skills will be gd fr the students t build up their creativity in every way.
转换表达
要点1 第一段主题句可概括为要点1,主题句中的 可改为prevail;ffer many benefits可改为短语 。
要点2 第二段主题句可概括为要点2,主题句中的 可改为are ppsed t;tear thse barriers dwn 可改为短语 。
要点3 第三段主题句可概括为要点3,主题句中的 可替换为respnsibilities; 可改为are a reminder f purpses and respnsibilities;Fr students, the schl unifrm reminds them that their task fr the six r seven hurs when they are in schl is t get an educatin. 可整合为 。
要点4 第四段主题句可概括为要点4,主题句中的Sme parents are unhappy abut unifrms, saying that schl unifrms will affect their children's “creativity”.可转换为 ;Students have the rest f the day t be as creative as they like. While they're in schl, their jb is t master reading, writing, and mathematics; this shuld take up all the creativity they have. Mastery f thse skills will be gd fr the students t build up their creativity in every way.可整合为 。
答案 要点1 are becming mre and mre ppular; benefit students a lt
要点2 are against; end scial barriers
要点3 duties;remind the wearers f their purpses and duties;Schl unifrms remind students receiving an educatin is their majr task.
要点4 Sme parents blame kids' being less creative n wearing unifrms.;Real creativity is based n their mastery f knwledge and skills thrugh schling.
连句成篇
参考范文
Schl unifrms prevail thrughut the as they benefit students a lt.(要点1)While sme peple are ppsed t them, schl unifrms satisfy students' desire t dress similarly like their classmates, which can end scial barriers. (要点2)Unifrms are a reminder f purpses and respnsibilities, and schl unifrms remind students receiving an educatin is their majr task. (要点3)Sme parents blame kids' being less creative n wearing unifrms, but real creativity is based n their mastery f knwledge and skills thrugh schling. (要点4)
写作积累
表“结果”的过渡词
s因而;这样;如此
thus因此
therefre因此
hence从此;由此
accrdingly所以
as a result 结果;因此
cnsequently因此;所以
in cnsequence结果;因此
as a cnsequence因此;结果
表“条件”的过渡词
n cnditin that...在……条件下
as/s lng as只要
if s 如果这样
if pssible如果可能的话
prvided that如果
答案全解全析
实战演练
One pssible versin:
Aim:Find ut whether the magnesium reacts with the air.
Materials:a pair f tngs, a Bunsen burner, a bx f matches, a magnesium bar
Prcedure:
1.Light the Bunsen burner with a match.
2.Use the tngs t hld the magnesium bar prepared in advance.
3.Hang the magnesium bar ver the Bunsen burner t see what will happen.
Result:The magnesium bar releases strng and white lights and heat, frming a small amunt f white pwder.
Cnclusin:Magnesium, a lively metal, can react with air. In additin, after burning, it can frm a kind f new substance called magnesium xide.
实验目的
验证蛋壳在醋中是否会溶解
实验用具
水、碗、小勺、鸡蛋、醋
实验步骤
(1)将带壳的生鸡蛋在清水中洗干净;
(2)将鸡蛋放入准备好的碗中;
(3)在碗中加入足够量的醋;
(4)静置两天。
实验结果
蛋壳在醋中溶解
主题
蛋壳在醋中
是否会溶解
体裁
实验报告
人称
以第三人称为主
时态
一般现在时
布局
1.实验目的 2.实验用具 3.实验步骤 4.实验结果
实验目的
验证镁是否会和空气发生反应
实验用具
钳子,本生灯,火柴,镁条
实验步骤
(1)用火柴点燃本生灯;
(2)用钳子夹住镁条;
(3)将镁条置于本生灯上方,观察现象。
实验现象
镁条剧烈燃烧,发出耀眼白光,放热,并生成白色粉末
实验结论
镁会和空气发生反应
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