最新英语翻译练习题含答案
最新英语翻译练习题含答案
一、高中英语翻译
1．高中英语翻译题：Translate the following sentences into English, using the words given in the brackets.
1．美食是人们造访上海的乐趣之一。（visit）
2．街头艺术家运用创意将鲜艳明亮的色彩带进了老社区。（bring）
3．在你生命中，如果有一个人你需要对他说对不起，那么就去向他道歉吧。（apology）4．这个游戏的独特之处在于它让孩子学会如何应对现实生活中的问题。（what）
5．申请材料需要精心准备，这样你心仪的学校才会对你的能力有全面、准确地了解。（in order that）
【答案】
1．Delicious food is one of the pleasures when people visit Shanghai.
2．Street artists bring bright and vivid colors into older neighborhoods with originality
3．If there is someone to whom you need say sorry in your life, make an apology to him. 4．What makes this game peculiar lies in that it teaches kids how to handle the problems in real life.
5．The applications should be carefully prepared in order that the school you like can have an overall and accurate knowledge of your abilities.
【解析】
【分析】
1．本句重点考察两个知识点。一个是乐趣之一，说明此处的乐趣应该用复数，必须是可数名词，因此选择pleasure。另一个是题目中给出的visit，需要谨慎处理，是用做动词还是名词。此处我们给出一个时间状语从句when people visit Shanghai，同时还可使用其他从句进行处理。所以答案是Delicious food is one of the pleasures when people visit Shanghai. 2．本题难度不大，重点是明亮的色彩的表达，可以使用bright colors, 也可以使用bright and vivid colors. 所以答案是Street artists bring bright and vivid colors into older neighborhoods with originality
3．本题考查there be + 定语从句从而构成条件状语从句。另外考察“道歉”用“make apology to sb.”。所以答案是If there is someone to whom you need say sorry in your life, make an apology to him.
4．本题考察what引导的主语从句，以及“be peculiar to”的用法。所以答案是What makes this game peculiar lies in that it teaches kids how to handle the problems in real life.
5．本题主要考固定词组的掌握，为了使用in order that引导出的目的状语从句。另外也考查 preferred school，have…knowledge/ understanding of…，overall，accurate等。所以答案是The applications should be carefully prepared in order that the school you like can have an overall and accurate knowledge of your abilities.
【考点定位】翻译句子
2．高中英语翻译题：Translate tbe following sentences into English, using the words given in the brackets.
1．我们打篮球的时间到了。 (time)
2．他设法把游客及时送到了机场。 (manage)
3．你今晚能来参加我的生日聚会? (possible)
4．应该鼓励年轻人按照自己的特长选择职业。(encourage)
5．我对学生所谈的电子产品一无所知，我发现自己落伍了。(ignorant)
6．尽管遭受如重的自然灾害，但只要不灰心，我们终会克服暂时的困难。(Although...)
【答案】
1．It’s time for us to play basketball.
2．He managed to send the tourists to the airport in time.
3．Is it possible for you to attend my birthday party this evening?
4．Young people should be encouraged to choose their careers according to their own strong points.
5．Being ignorant of the electronic products the students are talking about, I find myself left behind.
6．Although we are suffering such a severe natural disaster, we will eventually overcome the temporary difficult a s long as we don’t lose heart.
【解析】
1．考查time的用法。分析句子可知，本句为一般现在时，it is time for sb to do sth “该到某人做某事了”。为固定句型。再根据其它提示。故翻译为：It’s time for us to play basketball。2．考查manage的用法和一般过去时。分析句子可知，本句为一般过去时，manage to do sth“设法做某事”为固定短语。in time“ 及时”为介词短语，在句中作状语。再根据其它提示。故翻译为：He managed to send the tourists to the airport in time。
3．考查possible的用法和一般现在时。分析句子可知，本句为一般现在时，it is possible for sb to do sth “ 某人做某事是可能的”，it作为形式主语完成整个句子，不定式作为真正主语。再根据其它汉语提示。故翻译为：Is it possible for you to attend my birthday party this evening?
4．考查encourage的用法。encourage sb. to do sth.的被动语态形式就是sb. be encouraged to do sth.另外，此题还考查短语according to（按照）和strong points(长处，特长)。再根据其它提示。故翻译为：Young people should be encouraged to choose their careers according to their own strong points。
5．考查形容词短语作状语、定语从句以及find的用法。分析句子可知，本句为一般现在时，主语为I ，谓语为find， find oneself done表示“发现自己被…”,left behind是“被落在后面了”作宾语补足语。Being ignorant of the electronic products the students are talking about
为形容词短语作原因状语从句。products 为先行词，在后面的定语从句中，作talk about的宾语。再根据其它汉语提示。故翻译为：Being ignorant of the electronic products the
students are talking about, I find myself left behind。
6．考查although引导的让步状语从句和时态。分析句子可知，本句为although引导的让步状语从句，从句为现在进行时，主句为为as long as 引导的条件状语从句。lose heart“ 灰心丧气”，overcome“ 克服”。再根据其它汉语提示。故翻译为：Although we are suffering such a severe natural disaster, we will eventually overcome the temporary difficult as long as we don’t lose heart。
3．高中英语翻译题：Translate the following sentences into English, using the words given in the brackets.
1．今年除夕你计划在哪里过？(plan)
2．下雨天上海的道路总是比平时更拥堵。(than)
3．是一个外国人不顾自己的安危救了那个轻生的男子。(It)
4．那天傍晚我一走出校门就遇到了一个多年不见的小学同班同学。(No sooner)
5．无论谁想要成功必先明白这个道理“成功来自艰苦的付出和坚持不懈”。(Whoever)
【答案】
1．Where are you planning to celebrate the New Year’s Eve this year?
2．Roads in Shanghai always get/become more crowded /hold up more traffic than usual on rainy days.
3．It was a foreigner that/who saved the man trying/who tried to kill himself/ commit suicide without considering his own safety.
4．No sooner had I left the school that early evening than I met with/bumped into/came across/encountered a classma te of mine in primary school (whom) I hadn’t seen for ages/years. 5．Whoever wants to be successful should first understand the principle that success comes from hard effort/work and persistence/perseverance.
【解析】
1．本题提示词为plan，除夕翻译为“New Year’s Eve”。
2．本题考查比较级，“比平时”翻译为“than usual”.
3．本题考查强调句、定语从句和非谓语的翻译。首先强调句结构“it is(was)…that/who” ；那个轻生的男子,需要处理为定语从句，翻译为“the man who tried to kill himself/ commit suicide”; 不顾“without considering”.
4．倒装句和定语从句的翻译。一…就“No sooner had sb．done sth．than sb．did sth.”; 多年不见的小学同学可以处理成定语从句，翻译为“(whom) I hadn’t seen for ages/years.”；5．本题考查主语从句和同位语的翻译，句子结构比较复杂。首先“无论谁想要成功”用主语从句“Whoever wants to be successful”。其次，“这个道理“成功来自艰苦的付出和坚持不懈”这半句话涉及使用同位语从句。理清关系后，本句也并没有想象中那么复杂。
4．高中英语翻译题：Translate the following sentences into English, using the words given in the brackets.
1．女孩子们没有必要在深夜为了省钱而去拼车。（need n.）
2．在现代社会中，年轻人承受着巨大的压力，这会导致平均寿命的缩短。(which)
3．他在联合国大会上关于消除性别歧视的演讲获得了高度赞扬。(compliment)
4．他在最后期限到之前全身心投入论文的写作，最终因为劳累病了。( down)
【答案】
1． There is no need for girls to share a car at midnight to save money.
2． Young people are under a lot of stress in the modern society, which will result in/ cause/ lead to the shortening of average life expectance.
3． His speech on eliminating gender prejudice at the conference in the United Nations received great compliments.
4． He had been devoted to the essay writing before the deadline and eventually was down with tiredness.
【解析】
【分析】
本题考查翻译句子，注意一些固定短语和固定句型的使用，同时也要注意名词单复数及非谓语动词。
1．本题的难点在于There is no need for sb to do句型，注意拼车可以用share a car来表示。2．本题的难点在于非限定性定语从句的使用，under stress表示“承受压力”。
3．本题需要注意compliment是可数名词，此处要使用复数形式。
4．本题需要注意be devoted to后需要接动名词或名词作宾语，be down with表示“由于……病倒了”。
5．高中英语翻译题：Translate the following sentences into English, using the words given in the brackets.
1．他排了好几个小时才买到这个新出的iPhone。（release）
2．一件雕塑赠予了城市博物馆，以纪念两个城市间的珍贵友谊。（present）
3．他一进饭店，就被告知这家饭店可以手机扫二维码点餐。（Hardly）
4．虽说忠言逆耳利于行，这个年纪的孩子很叛逆，你越劝，他可能越不会听。（advice）
【答案】
1．He waited for (several) hours in line/ queued for several hours before he bought/ got the newly-released iPhone./ Having waited/ after waiting for hours in line, he finally bought the newly-released iPhone.
2．A statue/ sculpture was presented to City Musuem/ the museum in this city in honour of/ in memory of/ in remembrance of / to commemorate / to honour the valuable/ precious friendship between the two cities.
3．Hardly had he entered the restaurant when he was informed/ told that he could order the
food by scanning the code/ QR code with his mobile phone./use his mobile phone to scan the QR code to order the food.
4．Although faithful/ frank/ honest advice is unpleasant to ear but beneficial to one's behaviour, children of this age are so rebellious that the more advice you give him, the less likely he is to follow it./ The more you try to persuade him, the less likely he is to listen to you.
【解析】
1．考查时态和过去分词作定语。根据汉语提示可知，本句的基础时态是一般过去时；“排队”wait…in line/ queue，“新出的iPhone”the newly-released iPhone，其中一个时间状语从句“过了……才……”…before…；本句还可用“排了好几小时队”的现在分词形式作为伴随状语，再结合其他汉语提示，本句可译为：He had waited for (several) hours in line/ queued for several hours before he bought/ got the newly-released iPhone. Having waited/ after waiting for hours in line, he finally bought the newly-released iPhone.
2．考查被动语态和短语。根据汉语提示可知，本句的基础时态是一般过去时；“以纪念”in memory of/ in remembrance of/ to commemorate/ to honor，“珍贵的友谊”precious/ valuable friendship，雕塑 (statue/sculpture)和赠与(present)之间是被动关系，故用一般过去时的被动语态，再结合其它汉语提示，故本句可译为：A statue/ sculpture was presented to City Musuem/ the museum in this city in honour of/ in memory of/ in remembrance of/ to commemorate/ to honour the valuable/ precious friendship between the two cities.
3．考查部分倒装和被动语态。根据汉语提示可知，本句的基础时态是一般过去时；“一……就……”hardly…when…，hardly置于句首时要部分倒装，“告知某人做某事”inform/tell sb. to do sth.，“使用手机扫描二维码”use his mobile phone to scan the QR code/ scan the QR code with his mobile phone，再结合其它汉语提示，故本句可译为：Hardly had he entered the restaurant when he was informed / told that he could order the food by scanning the code / QR code with his mobile phone./use his mobile phone to scan the QR code to order the food.
4．考查让步状语从句和固定句型。根据提示可知，本句的基础时态是一般现在时；“忠言”faithful/ frank/ honest advice，“越……越……”the + 比较级，the + 比较，“这个年纪的孩子”children of this age，“很有可能做某事”be likely to do sth.，“叛逆的”rebellious，“听取某人的建议”follow one's advice，再结合其它汉语提示，故本句可译为：Although faithful/ frank/ honest advice is unpleasant to ear but beneficial to one's behaviour, children of this age are so rebellious that the more advice you give him, the less likely he is to follow it./ The more you try to persuade him, the less likely he is to listen to you.
【点睛】
第三小题考查固定句型hardly…when…“一……就……”，该句型在时态上有要求，即主句用现在完成时，从句用一般过去时，如把hardly置于句首时，主语要部分倒装。例如：
I had hardly fallen asleep when I lay on the bed.我一躺在床上就睡着了。
→Hardly had I fallen asleep when I lay on the bed.
和它用法一样的句型还有no sooner…than…和scarcely…when…，例如：
I had no sooner fallen asleep than I lay on the bed.我一躺在床上就睡着了。
→No sooner had I fallen asleep than I lay on the bed.
6．高中英语翻译题：Translate the following sentences into English, using the words given in brackets.
1．只要你有耐心，你总能在夜市淘到一些便宜货。(pick up)
2．让他宽慰的是，在房价飙升之前，他在同事的建议下买了一套公寓。(advice)
3．这个品牌的手机各方面都比所有其他的手机好，只是价格实在太贵了。(superior) 4．鉴于这个计划风险太大，虽然设计者的分析听上去很合理，政府最终没有采纳。(risky)
【答案】
1．As long as you have patience, you can always pick up some bargains in the night market. 2．To his great relief, he bought a flat o n his colleague’s advice before house prices rocketed. 3．This brand of mobile phone is superior to all the others in every respect, except that its price is really too high.
4．Considering that the plan was too risky, the government eventually didn’t adopt it although the designer’s analysis sounded sensible.
【解析】
1．考查状语从句和时态。此处含as long as“只要”引导的条件状语从句的复合句；have patience“忍耐一下”；固定词组：pick up“捡起，获得”；再根据所给汉语可知句子用一般现在时态，故翻译为As long as you have patience, you can always pick up some bargains in the night market.
2．考查状语从句和时态。此处是含before“在…之前”引导的时间状语从句；分析句子结构：he是句子主语，谓语动词用一般过去时态bought，a flat是句子宾语；固定短语：To his great relief“使他非常欣慰的是”；his colleague’s advice“他同事的建议”；再根据所给汉语可知翻译为：To his great relief, he bought a flat on his colleague’s advice before house prices rocketed.
3．考查时态和固定短语。分析句子结构：This brand of mobile phone是句子主语；is superior to“优于”是谓语部分；except that除了…之外；再根据所给汉语可知句子用一般现在时态，故翻译为：This brand of mobile phone is superior to all the others in every respect, except that its price is really too high.
4．考查状语从句和时态。此处是considering that“考虑到，就…而论”引导的原因状语从句；although引导让步状语从句；risky“冒险的”，adopt“采纳”；句子为一般过去时。再根据所给汉语故翻译为：Considering that the plan was too risky, the government eventually didn’t adopt it although the designer’s analysis sounded sensible.
7．高中英语翻译题：Translate the following sentences
1．学生在英语写作中词不达意的现象值得每位英语教师关注。(worth)
2．下周一整周都可以用肉眼观察到火星，这让很多天文(astronomy)爱好者欣喜若狂。(visible)
3．应当鼓励孩子从小接触音乐，音乐一直被认为是灵感的恒久源泉。source
4．中日两国的共同利益远远大于分歧，对话与合作始终是两国关系的主流。（outweigh）
【答案】
1．The phenomenon that students can’t convey/express their ideas is wor th paying attention to by every English teacher.
2．Mars will be visible to the naked eye all week next week, which makes many astronomy lovers wild with joy.
3．Kids should be encouraged to be exposed to/ expose themselves to music from an early age because music is regarded as an enduring source of inspiration.
4．The common interests between China and Japan far outweigh their differences, so dialogue and cooperation should remain the main stream of their relations.
【解析】
【分析】
考查句子翻译。
1．考查固定短语和名词性从句。固定短语be wo rth doing sth.“值得做某事”，pay attention to“对……的注意”，本句为同位语从句修饰先行词phenomenon。故翻译为The phenomenon that students can’t convey/express their ideas is worth paying attention to by every English teacher.。
2．考查固定短语和定语从句。固定短语be visible to“……所看见的”，wild with joy“欣喜若狂”，本句为非限定性定语从句修饰主句，且主句为一般将来时，从句应用一般现在时。故翻译为Mars will be visible to the naked eye all week next week, which makes many astronomy lovers wild with joy.。
3．考查固定短语和状语从句。固定短语be exposed to/expose oneself to“接触……”，an enduring source of inspiration“灵感的恒久源泉”，be regarded as“被视为……”，本句为原因状语从句，从句为一般现在时。故翻译为Kids should be encouraged to be exposed to/ expose themselves to music from an early age because music is regarded as an enduring source of inspiration.。
4．考查固定短语。固定短语far outweigh“远远大于”，the main stream“主流”。本句应用一般现在时。故翻译为The common interests between China and Japan far outweigh their differences, so dialogue and cooperation should remain the main stream of their relations.。
8．高中英语翻译题：Translation
1．只有你尊重了别人，你才有可能从别人那里得到同样的尊重。 (Only)
2．虽然遭到父母的强烈反对，当他绝不会放弃追求自己的梦想。 (despite)
3．迄今虽说屡屡采取严控措施，但绝大多数人仍然觉得难以承担目前的高房价。 (majority) 4．虽然妇女对社会的贡献有目共睹，但对妇女的歧视仍然存在，并可能持续很长的一段时间。 (obvious)
【答案】
1．Only when you show respect for others will you be likely to receive the same respect from
others.
2．Despite the fact that his parents strongly disagreed with him. he would never give up pursuing his dream.
3．Although it is said that serious measures have been taken for many times up till now a large majority of people still find it hard to afford the high housing price.
4．Although women’s contribution t o the society is obvious, the discrimination against women still exists and it will last for a long time.
【解析】
【分析】
本题考查翻译句子，注意使用括号内的提示词进行翻译。
1．考查倒装。根据提示词和句意可知本句使用倒装句，当only+状语位于句首时，其后要采用部分倒装，同时要遵循主将从现原则，主句用一般将来时，从句用一般现在时，故翻译为：Only when you show respect for others will you be likely to receive the same respect from others.
2．考查让步状语从句和同位语从句。根据提示词可知本句用despite引导让步状语从句，despite是介词，其后接名词而不能接句子，所以用that引导的同位语从句解释说明fact的具体内容，故翻译为：Despite the fact that his parents strongly disagreed with him, he would never give up pursuing his dream.
3．考查让步状语从句和固定句式。根据句意可知本句用although引导让步状语从句，it is said that…表示“据说”，“采取严控措施”发生在过去并对现在产生影响，用现在完成时，同时“find it+hard+to do”表示“发现很难……”，故翻译为：Although it is said that serious measures have been taken for many times up till now a large majority of people still find it hard to afford the high housing price.
4．考查让步状语从句。根据句意可知本句用although引导让步状语从句，表示“尽管”，陈述的是客观事实，用一般现在时，故翻译为：Although women’s contribution to the society is obvious, the discrimination against women still exists and it will last for a long time.
9．高中英语翻译题：Translation
1．这些保存完好的历史建筑可以追溯到16世纪60年代。 (date)
2．John难得去老师那儿寻求帮助，他觉得自学会使自己受益更多。 (Seldom)
3．基于个人消费历史的网上年度账单可能会带来隐私泄露问题。 (bring)
4．近年来医患关系成为了社会热点，解除病人痛苦正是医生职责，病人也应充分信任与理解医生。 (relieve)
【答案】
1．These well-preserved historic buildings can date back to the 1560s.
2．Seldom did John ask teacher for help, and he thought that teaching himself would be more beneficial.
3．Only a yearly bill based on personal consuming history may bring about the leak of private problem.
4．Recently, the relationship between doctors and patients has become a social hot point, but relieving the Patients’ pain is doctor's responsibility and the patients should fully believe and understand the doctors.
【解析】
1．考查date back to的用法。根据句意及提示词可知，此处使用词组date back to“追溯到”，该词组没有被动语态，常使用一般现在时。故译为：These well-preserved historic buildings can date back to the 1560s.
2．考查seldom引导倒装句的用法。seldom位于句首时，后面需要部分倒装；根据句意可知，此处描述的是过去的动作，应使用一般过去时和过去将来时。故译为：Seldom did John ask teacher for help, and he thought that teaching himself would be more beneficial.
3．考查bring about的用法。根据句意及提示词可知，此处使用词组bring about“带来”，句子描述的是客观事实，应使用一般现在时。故译为：Only a yearly bill based on personal consuming history may bring about the leak of private problem.
4．考查relieve的用法。根据句意及提示词可知，此处使用动词relieve“解除”的动名词词组做主语，句子使用现在完成时和一般现在时，故译为：Recently, the relationship between doctors and patients has become a social hot point, but relieving the Patients’ pain is doctor's responsibility and the patients should fully believe and understand the doctors.
10．高中英语翻译题：Translate the following sentences into English, using the words given in the brackets.
1．你是不是就在这家新开的饭店里看见疑犯实施犯罪？ (it)
2．学外语时没有必要不懂装懂，否则你总有一天会后悔的。(need n.)
3．人们很难想象像他这样一个体面的政府官员是如何一夜之间就沦为阶下囚的。(reduce) 4．这个年轻人向朋友保证在任何情况下他都不会违背做一个诚实和守信人的承诺。( under no circumstances )
【答案】
1．Was it in the newly-- opened restaurant// that you witnessed / saw(that) the suspect
//commit the crime?
2．There is no need to // pretend to know what you don’t know // when you learn a foreign language, // otherwise/or you will regret it some day.
3．People could/ can hardly imagine// how a decent government official like him //can/ should be reduced to// a prisoner overnight
4．The young person assured his friends that// under no circumstances would he// break the promise that// he should/would be faithful/trustworthy and honest.
【解析】
【分析】
考查句子翻译。
1．考查强调句。本句为强调句结构，强调的部分为in the newly-- opened restaurant，且固定短语commit the crime“犯罪”，且应用一般过去时。故填Was it in the newly-- opened
restaurant// that you witnessed / saw(that) the suspect //commit the crime?
2．考查固定句式。固定句式There is no need to do sth.“没有必要做某事”，且应为when引导的时间状语从句，短语pretend to do sth.“假装做某事”，且应用一般现在时以及一般将来时。故填There is no need to // pretend to know what you don’t know // when you learn a foreign language, // otherwise/or you will regret it some day.
3．考查名词性从句和固定短语。本句为宾语从句，且从句中缺少方式状语表示“如何”，故用how引导，且固定短语be reduced to“沦为”，故填People could/ can hardly imagine// how a decent government official like him //can/ should be reduced to// a prisoner overnight。4．考查名词性从句和固定短语。本句为宾语从句，且从句中不缺少成分，故用that引导，且固定短语under no circumstances“决不”，且根据句意应用一般过去时，故填The young person assured his friends that// under no circumstances would he// break the promise that// he should/would be faithful/trustworthy and honest.。
【点睛】
强调句结构。
为了突出句子中的某一部分，我们通常会使用某种方法或手段使它突出，以便能引起他人的注意，这就是强调，与此相关的句子就是强调句。强调句是一种修辞，是人们为了表达自己的意愿或情感而使用的一种形式。其结构为it is (was)+被强调成分+that (who)+其他。
1、陈述句的强调句型
It is/ was + 被强调部分(通常是主语、宾语或状语)+ that/ who(当强调主语且主语指人)+ 其他部分。
2、一般疑问句的强调句型，把is/ was提到it前面。
3、特殊疑问句的强调句型，被强调部分(通常是疑问代词或疑问副词)+ is/ was + it + that/ who + 其他部分?
4、not … until … 句型的强调句
句型为：It is/ was not until + 被强调部分 + that + 其他部分
普通句：He didn't go to bed until/ till his wife came back.
强调句：It was not until his wife came back that he went to bed.
注意：此句型只用until，不用till。但如果不是强调句型，till, until可通用;因为句型中It is/ was not ... 已经是否定句了，that后面的从句要用肯定句，切勿再用否定句了。
如第一小题，本句为强调句结构，强调的部分为in the newly-- opened restaurant，且固定短语commit the crime“犯罪”，且应用一般过去时。故填Was it in the newly-- opened restaurant// that you witnessed / saw(that) the suspect //commit the crime?
应用化学专业英语翻译完整篇
1 Unit5元素周期表 As our picture of the atom becomes more detailed 随着我们对原子的描述越来越详尽，我们发现我们陷入了进退两难之境。有超过100多中元素要处理，我们怎么能记的住所有的信息？有一种方法就是使用元素周期表。这个周期表包含元素的所有信息。它记录了元素中所含的质子数和电子数，它能让我们算出大多数元素的同位素的中子数。它甚至有各个元素原子的电子怎么排列。最神奇的是，周期表是在人们不知道原子中存在质子、中子和电子的情况下发明的。Not long after Dalton presented his model for atom( )在道尔顿提出他的原子模型（原子是是一个不可分割的粒子，其质量决定了它的身份）不久，化学家门开始根据原子的质量将原子列表。在制定像这些元素表时候，他们观察到在元素中的格局分布。例如，人们可以清楚的看到在具体间隔的元素有着相似的性质。在当时知道的大约60种元素中，第二个和第九个表现出相似的性质，第三个和第十个，第四个和第十一个等都具有相似的性质。 In 1869,Dmitri Ivanovich Mendeleev,a Russian chemist, 在1869年，Dmitri Ivanovich Mendeleev ,一个俄罗斯的化学家，发表了他的元素周期表。Mendeleev通过考虑原子重量和元素的某些特性的周期性准备了他的周期表。这些元素的排列顺序先是按原子质量的增加,,一些情况中, Mendeleev把稍微重写的元素放在轻的那个前面.他这样做只是为了同一列中的元素能具有相似的性质.例如,他把碲(原子质量为128)防在碘(原子质量为127)前面因为碲性质上和硫磺和硒相似, 而碘和氯和溴相似. Mendeleev left a number of gaps in his table.Instead of Mendeleev在他的周期表中留下了一些空白。他非但没有将那些空白看成是缺憾，反而大胆的预测还存在着仍未被发现的元素。更进一步，他甚至预测出那些一些缺失元素的性质出来。在接下来的几年里，随着新元素的发现，里面的许多空格都被填满。这些性质也和Mendeleev所预测的极为接近。这巨大创新的预计值导致了Mendeleev的周期表为人们所接受。 It is known that properties of an element depend mainly on the number of electrons in the outermost energy level of the atoms of the element. 我们现在所知道的元素的性质主要取决于元素原子最外层能量能级的电子数。钠原子最外层能量能级（第三层）有一个电子，锂原子最外层能量能级（第二层）有一个电子。钠和锂的化学性质相似。氦原子和氖原子外层能级上是满的，这两种都是惰性气体，也就是他们不容易进行化学反应。很明显，有着相同电子结构（电子分布）的元素的不仅有着相似的化学性质，而且某些结构也表现比其他元素稳定（不那么活泼） In Mendeleev’s table,the elements were arranged by atomic weights for 在Mendeleev的表中，元素大部分是按照原子数来排列的，这个排列揭示了化学性质的周期性。因为电子数决定元素的化学性质，电子数也应该（现在也确实）决定周期表的顺序。在现代的周期表中，元素是根据原子质量来排列的。记住，这个数字表示了在元素的中性原子中的质子数和电子数。现在的周期表是按照原子数的递增排列，Mendeleev的周期表是按照原子质量的递增排列，彼此平行是由于原子量的增加。只有在一些情况下（Mendeleev注释的那样）重量和顺序不符合。因为原子质量是质子和中子质量的加和，故原子量并不完全随原子序数的增加而增加。原子序数低的原子的中子数有可能比原子序数高的原
英文翻译练习作业
英文翻译练习（一） The status of Philosophy in Chinese culture has always been regarded as a comparison with that of religion in other cultures. In China, Philosophy is the concerned field by each educated one. Long time ago in China, a person would firstly accept enlightened education in Philosophy if he could be given education. Children should read the Analects, Mencius, The great Learning, The Doctrine of mean once they entered school. The Four Books were regarded as the most important documents after Song(regarded as “new Confucianism”in west).When children began to learn words, the commonly used textbook is Three Words, in which every three words a group, every six words one sentence, and the even sentence rhyme has rhyme, easy to read aloud and easy to remember. In fact, this book is used to learn words for Chinese children. The first sentence of Three Words “Man’s nature is good at birth.” Is the basic idea of philosophy of Mencius.
英语四级翻译..-热点词汇翻译
专题一中国节日及相关表达 1.春节the Spring Festival / Chinese lunar Near Year 农历正月初一the first day of the first lunar month 农历lunar calendar 年终大扫除year-end household cleaning 春联Spring Festival couplets 年画New Year pictures 剪纸paper-cuts 团圆饭family reunion dinner 饺子dumplings 春晚Spring Festival Gala 守岁stay up late on the New Year’s Eve 除夕Eve of Chinese New Year 辞旧迎新ring out the old year and ring in the new 拜年pay a New Year visit 红包red packets 压岁钱lucky money 放爆竹let off firecrackers 庙会temple fair 禁忌taboo 2.元宵节Lantern Festival 农历正月十五15th day of the first lunar month元宵rice dumplings 花灯festival lantern 灯谜lantern riddle 灯会exhibit of lanterns 烟花fireworks 3.端午节Dragon Boat Festival 农历五月初五5th of the fifth lunar month 粽子traditional Chinese rice-pudding 糯米sticky rice 粽叶bamboo leaves 舞龙dragon dance 舞狮lion dance 踩高跷stilt walking 赛龙舟dragon-boat racing 纪念in memory of 屈原Qu Yuan 诗人poet 忠臣loyal minister 4.清明节Tomb-sweeping Day 寒食节Cold Food Festival 祭拜祖先offer sacrifices to one’s ancestors 踏青go for a spring outing 5.中秋节Mid-Autumn Day / Moon Festival 农历八月十五15th of the eighth lunar month 月饼moon cake 赏月appreciate the glorious full moon 中国神话故事Chinese mythology 嫦娥the goddess of the moon 后羿Houyi
英语翻译重点词汇词组
英语翻译重点词汇词组 fellow countrymen 同胞 militarist军阀 Chinese Communist Party 党组织 the Grand Canal （京杭）大运河Industrial Revolution 工业革命dawn to dark从早到晚 especially English 具有英国特征的cottage industry 农村手工业 Indian summer 最后的余辉 stock-raising 畜牧业 Homestead Act 宅地法 wild west 西部荒原 the gold rush 淘金热 basic occupation 基础产业Department of Agriculture 农业部门the Nile Delta 尼罗河三角洲 coastal erosion 水土流失Mediterranean climate 地中海型气候surveyor general 测量总监sovereign nation 主权国家aggregate output 总产量 coastal area 沿海地区 telephone connections 电话用户economic well-being 生活水平 two way trade 双向贸易 lucrative export market 出口市场
foreign exchange 外汇 sum total 总数 per capita 人均 GNP 国民生产总值 joint ventures 合资企业 net income 净收入 world investment system世界投资体系 the stock of foreign investment 外资存量 英语翻译重点词汇（２） major economy 经济大国 the stimulus, the technology and the funding 动力、技术和资金international trade and investment 国际贸易和投资 popular science 科普读物Arctic seas 北冰洋 vegetable oil 植物油 mineral oil煤油 internal combustion engine内燃机 warfare on land and sea 陆战和海战 minute sea creatures and plants 微小的海洋动植物 crude oil 原油 sedimentary rocks 沉积岩 pitch lake 沥青湖 superhighway 高速公路 living organism 生物体 applied entomology 应用昆虫学 environmental Law环保法 wildlife 野生生物
应用化学专业英语第二版万有志主编版课后答案和课文翻译
Uｎit 1 The RｏotｓoｆCｈemisｔry Ｉ．Ｃoｍpreｈensioｎ. 1。Ｃ 2. Ｂ3．D 4. C 5. B ＩI。Ｍａｋe ａsenｔeｎｃe ｏut of ｅach ｉｔem ｂy reaｒranging ｔhe wordｓin ｂracｋets. 1.Tｈｅｐuｒiｆｉcation of aｎorganｉc compounｄis usually a matter of consｉｄerａｂlｅdｉfｆicｕｌtｙ, and iｔis nｅcｅｓsaｒy to eｍploy vａrious methoｄs fｏr thｉｓpurpｏse。 2.Science is an ｅｖeｒ－iｎcｒｅasing boｄy ofａccｕｍｕlａｔed anｄ ｓｙsｔｅmatiｚed knowledｇe ａnd iｓalsｏan activｉty bｙwｈic ｈｋnowledge iｓｇenerated。 3.Lifｅ，aftｅr all, is onｌy cｈeｍistry,in faｃｔ, a sｍall example of ｃ hｅｍistry ｏbsｅｒved oｎａsｉngle munｄane pｌａnet。 4.Peoplｅaｒe made of molｅculｅｓ; sｏmｅｏf ｔhｅmｏleculｅs in p ｅople aｒe rａｔher ｓimple whｅreas otｈerｓａｒｅhｉghly compｌex。 5.Chｅｍistry ｉｓever preseｎｔin ｏｕｒｌｉves frｏm ｂｉｒtｈ tｏｄeａthｂeｃａｕse withoｕt chｅmｉｓtrｙｔhere iｓneither life nor deａth. 6.Maｔhｅｍaｔics apｐeａｒs ｔo be almost as humaｎkiｎｄand ａｌ ｓo ｐermeaｔeｓall aspeｃts of ｈuman life, aｌthough ｍａｎｙof us are ｎｏｔfuｌly ａwａrｅoｆtｈis. III。Tｒanｓlatioｎ. 1.（a)chｅmicaｌprｏcess (b) natuｒal scienｃe（c）the teｃhｎｉ ｑｕe of distｉllaｔioｎ 2.Iｔｉs theａtｏｍs that ｍａkｅuｐｉron, waｔeｒ，oｘygen and the lｉke/anｄso on／aｎｄsｏfortｈ/aｎd otherｗiｓe. 3.Cheｍisｔｒy haｓa very long hｉｓtorｙ, ｉnｆaｃｔ，human a ｃtivity in chｅｍｉstrｙgｏes bａｃk ｔo ｐreｒecｏrｄed tｉmｅｓ/pｒedatiｎg reｃｏrded times． 4.Aｃcoｒdｉng to/Froｍthe eｖapoｒaｔion oｆwaｔeｒ，pｅople know ／reaｌized ｔｈat ｌiquidｓcａn ｔurn/bｅ/changeｉｎto gases ｕndeｒcertain conditions/circｕmsｔance／enｖironment。 5.Yoｕｍusｔknow ｔhe propｅｒtieｓｏfｔｈe materiaｌbeｆore y ｏu use it. IＶ．Ｔrａnslation 化学是三种基础自然科学之一,另外两种是物理和生物.自从宇宙大爆炸以来，化学过程持续进行,甚至地球上生命的出现可能也是化学过程的结果。人们也许认为生命是三步进化的最终结果,第一步非常快，其余两步相当慢.这三步
英语翻译作业
Americans are much more likely than citizens of other nations to believe that they live in a meritocracy, i.e. Government by people selected according to merit. But this self-image is a fantasy: America actually stands out as an advanced country in which it matters most who your parents were, the country in which those born on one of society’s lower rungs have the least chance of climbing to the top or even to the middle. And if you ask why America is more class-bound in practice than the rest of the Western world, a large part of the reason is that our government falls down on the job of creating equal opportunity. The failure starts early: in America, the holes in the social safety net mean that both low-income mothers and their children are all too likely to suffer from poor nutrition and receive inadequate health care. It continues once children reach school age, where they encounter a system in which the affluent send their kids to good, well-financed public schools or, if they choose, to private schools, while less-advantaged children get a far worse education. 美国人可能比任何其他国家的人都更相信他们生活在一个精英制度之下，人们推选的政府也是据其优势。然而，这个自我形象是一种幻想：作为先进国家，实际上美国的突出特点是出身至关重要，在这个国度里，来自社会底层的人几乎没有机会爬到社会中层，更不用说社会顶层。 如果你要问为什么实际上美国比其他西方国家都要阶级分明，主要原因就是我们的政府在创造公平机会方面的失败。 这种不公平很早以前就开始了：在美国，由于社会安全网存在漏洞，这就意味着低收入的母亲和他们的孩子完全有可能存在营养不良，得不到足够的医疗服务。孩子到了上学年龄这种情况也不会得到改观，他们所遇到的体制是富人可以送自己的孩子到资金充足的好的公立学校上学，如果愿意，还可以从送到私立学校上学，而穷人孩子接受的教育却非常差。
中国热门网络词汇英文翻译
1. 山寨copycatting This Chinese term literally refers to the mountain strongholds of bandits. First borrowed to describe rip-off products, it has evolved to refer also to homemade products, such as video parodies of movies. 2. 囧be sunk/sunken This is an ancient Chinese character, pronounced "jiong". It means "light shining through a window". Young Chinese use it to express embarrassment, or a bad mood. Look at the character. Doesn't it look like a disappointed face? 3. 很黄很暴力very pornographic, very violent During a CCTV interview about a new Internet censorship regulation, a girl said that an uncensored Web page once popped up on her computer. She called it "very pornographic, very violent". Some believe the girl was told to say it by CCTV, so it is now used to mock the way the network covers news. 4. 槑nuts Pronounced méi, the word is a variant of the word for "梅". But it also looks like a double version of the character 呆(dai), which means stupid. So netizens have borrowed it to mean "very silly or very stupid". 5. 叉腰肌Psoas muscle Xie Yalong, the former head of the Chinese Football Association , once criticized women players, saying they have weak Psoas muscles. (This is the muscle that links the trunk to the legs; it's important for motion.) However, nobody, including the players, knew where the muscle is. This quote is now used to mock Xie, who was recently removed from his position. 6. 打酱油get some soy sauce When a person in Guangzhou was asked to give his opinion of the sex scandal involving Hong Kong star Edison Chen (Chen Guanxi), the man answered, "It is none of my business. I am just out to get some soy sauce." People have since begun using the words to mean "it's none of my business". 7. 泡良族pick-up artists This expression refers to men who seduce married women. 8. 凤凰男Phoenix man
(完整版)2019英语六级翻译重点词汇
2019英语六级翻译重点词汇 一、经济类 总需求aggregate demand 总供给aggregate supply 企业文化corporate/entrepreneurial culture 企业形象corporate image (Cl); enterprise image 跨国公司cross-national corporation 创业精神enterprising spirit; pioneering spirit 外资企业foreign-funded enterprise 猎头公司head-hunter 假日经济holiday economy 人力资本human capital 航空和航天工业aerospace industry 飞机制造工业aircraft industry 电子工业electronic industry 汽车制造工业car industry 娱乐业entertainment industry 信息产业information industry 知识密集型产业knowledge-intensive industry 国有大中型企业large and medium-sized state-owned enterprises 轻工业light industry 博彩业lottery industry 制造业manufacturing industry 垄断行业monopoly industries 市场多元化market diversification 市场经济market economy 市场监管market supervision 购买力purchasing power 熊市bear market 牛市bull market 城镇化urbanization 房地产real estate 首付down-payment 业主home owner 个人购房贷款individual housing loan 经济全球化economic globalization 经济特区special economic zones (SEZ) 经济增长economic growth 泡沫经济bubble economy 关税tariff纳税人tax payer 宏观经济macro economy 货币投放量the size of money supply 流动性过剩excess liquidity 经济过热overheated economy
应用化学专业英语及答案
黄冈师范学院 2009—2010学年度第一学期期末试卷考试课程：专业英语考核类型：考试A卷 考试形式：闭卷出卷教师：杨一思 考试专业：化学考试班级：应用化学200601 一、Translate the following into English（20 points） 1.过滤 2.浓缩 3.结晶化 4.吸附 5. 蒸馏6．超临界的 7.二氯甲烷 8.热力学平衡 9.亲电性 10.表面张力 11.共轭的 12.酮 13.平衡常数 14.丙基 15.丁基 16.亚甲基 18.环己酮 19.同位素 20.标准熵 二、Translate the following into Chinese（20 points） 1. methyl propanoate 2. rate constant 3. ethyl methyl ketone 4. free energy 5. radical intermediate 6. isobutyl methyl ether 7. 3-chloropropene 8. primary radical 9. n-propyl bromide 10. bond energy 11. circulating electrons 12. local magnetic fields 13. tetramethylsilane 14. mass to charge ratios 15 phenylamine 16 amide 17. amine 18. nucleophile 19. perchlorate 20. carbocation 三、Translation the following into chinese （40 points） A卷【第1页共 3 页】
英语自考本科翻译重点词汇
fellow countrymen 同胞 militarist军阀 Chinese Communist Party 党组织 the Grand Canal （京杭）大运河 Industrial Revolution 工业革命 dawn to dark从早到晚 especially English 具有英国特征的 cottage industry 农村手工业 Indian summer 最后的余辉 stock-raising 畜牧业 Homestead Act 宅地法 wild west 西部荒原 the gold rush 淘金热 basic occupation 基础产业 Department of Agriculture 农业部门 the Nile Delta 尼罗河三角洲 coastal erosion 水土流失 Mediterranean climate 地中海型气候 surveyor general 测量总监 sovereign nation 主权国家 aggregate output 总产量 coastal area 沿海地区 telephone connections 电话用户 economic well-being 生活水平 two way trade 双向贸易 lucrative export market 出口市场 foreign exchange 外汇 sum total 总数 per capita 人均 GNP 国民生产总值 joint ventures 合资企业 net income 净收入 world investment system世界投资体系 the stock of foreign investment 外资存量 major economy 经济大国 the stimulus, the technology and the funding 动力、技术和资金international trade and investment 国际贸易和投资 popular science 科普读物Arctic seas 北冰洋 vegetable oil 植物油 mineral oil煤油 internal combustion engine内燃机
应用化学专业英语翻译(第二版)
Unit10 Nomenclature of Hydrocarbons碳氢化合物的命名 Alkanes烷烃 理想的，每一种化合物都应该由一个明确描述它的结构的名称，并且通过这一名称能够画出它的结构式。为了这一目的，全世界的化学家接受了世界纯粹与应用化学会（IUPAC）建立的一系列规则。这个系统就是IUPAC系统，或称为日内瓦系统，因为IUPAC的第一次会议是在瑞士日内瓦召开的。不含支链的烷烃的IUPAC命名包括两部分（1）表明链中碳原子数目的前缀；（2）后缀－ane，表明化合物是烷烃。用于表示1至20个碳原子的前缀见表 表中前4个前缀是由IUPAC选择的，因为它们早已在有机化学中确定了。实际上，它们甚至早在它们成为规则之下的结构理论的暗示之前，它们的地位就确定了。例如，在丁酸中出现的前缀but－，一种表示在白脱脂中存在的四个碳原子的化合物（拉丁语butyrum白脱（黄油））。表示5个或更多碳原子的词根来源于希腊或拉丁词根。 含取代基的烷烃的IUPAC名称由母体名称和取代基名称组成，母体名称代表化合物的最长碳链，取代基名称代表连接在主链上的基团。 来源于烷烃的取代基称为烷基。字母R－被广泛用来表示烷烃的存在.烷烃的命名是去掉原烷基名称中的－ane加上后缀－yl。例如，烷基CH3CH2－称为乙基。 CH3－CH3乙烷（原碳氢化合物）CH3CH2－乙基（一个烷基） 下面是IUPAC的烷烃命名规则： 1. 饱和碳氢化合物称为烷烃。 2. 对有支链的碳氢化合物，最长的碳链作为主链，IUPAC命名按此主链命名。 3. 连接在主链上的基团称为取代基。每一取代基有一名称和一数字.这一数字表示取代基连接在主链上的碳原子的位置。 4. 如果有多于一个的相同取代基，要给出表示支链位置的每个数字。而且，表示支链数目的数字由前缀di－，tri－，tetra－，penta－等表示。 5. 如果有一个取代基，主链碳原子编号从靠近支链的一端开始，使支链位号最小。如果有两个或多个取代基，支链从能使第一个取代基位次较小的一侧编号。 6. 如果有两个或多个取代基，它们按字母顺序排列。当排列取代基时，前缀iso－（异）和neo－（新）也按字母排列，前缀sec－（仲）和tert－（特）在字母排列中忽略 此外，按字母排列取代基时，表示倍数的前缀2，3，4等也被忽略。 Alkenes烯烃 烷烃的碳原子间只有单键。烯烃在两个碳原子间有双键（两个键）。考虑到两个碳原子间以双键相连。因为双键用去了两个碳原子的共4个电子。所以只剩下4个电子以供成
英语翻译作业1
一、改译 宰客slaughter customers(cheating customers) 自学self learn(study on one’s self) 彩票colorful tickets(lottery) 救火save a fire(Firefighting) (电脑)死机systerm dead(computer crash) 吃食堂eat the canteen(eat in the canteen) 风凉话cold word(sarcastic remark) 太平门safe door(emergency exit) 三角债triangle debts(chain debts) 扣帽子put a hat on(put a label on) 文化程度cultural degree(education level) 抓紧时间grasp time firmly(hurry up) 来信写道the latter writes(the letter reads) 提高英语水平raise the level of one’s English(Improve one’s English) 胸有成竹have a bamboo in one’s stomach(have a well-thought-out plan) 二、直译 大海捞针Look for a needle in the ocean 猫哭耗子假慈悲Cat cry for mouse 嫁鸡随鸡嫁狗随狗Marry a chicken with chicken married dog follows dog 挥金如土Spend money like water 易如反掌As easy as to turn one's hand 打草惊蛇To beat the grass and frighten away the snake 呆若木鸡Dumb as a wooden chicken 千里之行始于足下Every journey begins with the first step 瑞雪兆丰年A timely heavy snow promises a good harvest . 跑得了和尚跑不了庙Run a monk can not run the temple 三、重点翻译 她经常在邻里之间搬弄是非 She always makes mischief between neighbors. 她毛遂自荐来这所学校当老师 She recommending herself to be a teacher in this school. 正真的好朋友应该是雪中送炭 True friend is who provides you timely help. 我要有个三长两短，你给我娘捎个话 If something happens to me, please give my mother a massage. 留得青山在，不愁没柴烧 As long as the green mountains are there, one need not worry about firewood. 你这人真的是狗嘴里吐不出象牙 他对你的许诺不过是个空头支票而已 His promise to you just a blank check. 我喜欢那套房子，但美中不足的是离上班的地方太远 I like that house,but the fly in the ointment is too far away from the work place.
2020年常用英语热点词汇
2020年常用英语热点词汇 热点话题一：环境保护 基本词汇 pollute(污染); cut down trees(砍伐树木); waste water(废水); throw rubbish around(乱扔垃圾); protect the surroundings(保护周边环境); protect rare animals(保护稀有动物); improve the environment(改善环境); save energy(节省能源) 亮点词汇 do great harm to(给……带来很大危害) preserve/protect the ecological environment 保护生态环境 raise people’s awareness of environment protection 提高人们的环保意识 care for trees and plants 爱护树木花草 ride bicycles to work 骑自行车上班 recycle textbooks/trash 课本/垃圾回收利用 take public transport 乘坐公共交通
deal with rubbish properly 正确处理垃圾 save energy/water 节约能源/水 don’t litter/spit everywhere 不随地扔垃圾/吐痰sort the garbage 分类垃圾 ban abusing plastic bags 禁止滥用塑料袋 ban smoking in public places 禁止在公共场合吸烟 热点话题二和谐社会 基本词汇 harmonious(和谐的); honest(诚实的); credible (可信的); balanced(平衡的); social order(社会秩序); peaceful(和平的); sustainable development(可持续发展); help each other(互助); care for each other(互相关心); have a liking for (喜爱); build(创建); cherish(珍惜); public morals(社会道德) 亮点词汇
英语翻译的重点词汇词组
英语翻译重点词汇 fellow countrymen 同胞 militarist军阀 Chinese Communist Party 党组织 the Grand Canal （京杭）大运河Industrial Revolution 工业革命dawn to dark从早到晚 especially English 具有英国特征的cottage industry 农村手工业 Indian summer 最后的余辉 stock-raising 畜牧业 Homestead Act 宅地法 wild west 西部荒原 the gold rush 淘金热 basic occupation 基础产业Department of Agriculture 农业部门the Nile Delta 尼罗河三角洲coastal erosion 水土流失Mediterranean climate 地中海型气候surveyor general 测量总监sovereign nation 主权国家aggregate output 总产量 coastal area 沿海地区 telephone connections 电话用户economic well-being 生活水平 two way trade 双向贸易 lucrative export market 出口市场foreign exchange 外汇 sum total 总数per capita 人均 GNP 国民生产总值 joint ventures 合资企业 net income 净收入 world investment system世界投资体系the stock of foreign investment 外资存量 英语翻译重点词汇（２） major economy 经济大国 the stimulus, the technology and the funding 动力、技术和资金 international trade and investment 国际贸易和投资 popular science 科普读物Arctic seas 北冰洋 vegetable oil 植物油 mineral oil煤油 internal combustion engine内燃机warfare on land and sea 陆战和海战minute sea creatures and plants 微小的海洋动植物 crude oil 原油 sedimentary rocks 沉积岩 pitch lake 沥青湖 superhighway 高速公路 living organism 生物体 applied entomology 应用昆虫学environmental Law环保法
应用化学专业英语翻译
１０级应用化学（2）班郑禄春 B2０1０06３224 Lessｅn ２4 ChemicａｌＲeaｃtionｓ Conseｒvation of mａｓs ａnd ｅｎergy(质量与能量守恒) Ｔwo ｃonseｒvaｔｉｏn laws（定律) apｐlｙｔo aｌｌｃhemical reaｃtionｓ: E ｎergy can neitheｒ be cｒｅated nｏr deｓtroｙed, anｄｍａｔteｒｃaｎneither ｂｅ created nor deｓtｒｏyed. Thus the ａtoms taking part in a chemical reactioｎ may be reａrrangｅd, bｕt all ｔhe atoms preseｎt ｉn the reacｔan ｔs must also be preｓent in ｔhe prodｕctｓ, and the tｏtaｌｍasｓ oｆ tｈe ｒeactants muｓt equaｌ thｅｔotaｌｍａss ｏｆthe prｏducts. 化学反应 质量守恒和能量守恒 两个守恒定律(定律)适用于所有的化学反应:能量既不能创造也不能消灭,物质也不能创造也不能消灭。因此原子参与化学反应可能重新安排，但所有的原子出现在反应物必须包含在产品,反应物的总质量必须等于生产物的总质量。 What is ａ chｅmicaｌ reaction? A chｅmicaｌreaｃtiｏn occｕｒs whｅn sｕbsｔａnｃes (tｈe ｒｅactantｓ) colｌide (碰撞）ｗiｔh ｅnouｇｈ energｙ tｏｒearｒａnge to form difｆerent c ｏｍpounds (ｔhe ｐrｏdｕcts）. The changｅ iｎ enerｇy that occurs wheｎ a reaction take pｌａｃe ｉs deｓcriｂed by therｍｏdｙｎaｍics（热力学）anｄt ｈe ｒａｔｅ oｒ speed at which a reacｔioｎocｃurｓis descｒibed by kiｎeticｓ (动力学) . Reacｔions in ｗhiｃh ｔｈe ｒeaｃtａnｔｓaｎd ｐrｏductｓcoｅxist arｅ coｎｓidｅｒed ｔo be in equilｉｂriuｍ(处于平衡）. A chｅｍiｃａl ｅｑuaｔion ｃonsｉｓts ｏf the ｃhemｉｃal fｏrmｕｌａ（化学式)of thｅ rea ｃｔants, and ｔhe cｈemical fｏｒmｕla of ｔhe ｐrodｕcts. The twｏａre separateｄ bｙａn → uｓually read aｓ“yｉelｄs”ａnｄeach ｃhemicａl forｍula is sｅpａｒatｅd frｏm otheｒs by ａ plus sｉgn (加号）． Sometime ｓ a trｉangｌe is dｒawｎ over ｔhe arrow symbol tｏｄenotｅ enerｇy ｍuｓt ｂe addeｄｔo ｔｈe subsｔances ｆor ｔhe ｒeａcｔiｏn to beｇｉn． Eａch ｃｈemiｃaｌ formula may be pｒｅｃeded by a sｃalaｒ（数量的) ｃoｅｆficienｔｉndicatｉng thｅ proｐorｔion (比例) ｏｆ that substaｎce nｅｃｅssary to ｐｒoｄｕce ｔhe rｅacｔion in forｍulａ. Foｒinstanｃe， thｅｆoｒmｕla ｆoｒ the buｒning of mｅthane(CH4 + 2O2 →ＣO2 + 2H2O） iｎdｉｃates that twｉce as much Ｏ2 aｓ CH４ iｓ nｅｅded, and wｈen tｈey reａct， twicｅas ｍuch H2O as ＣO2 wｉll be produceｄ. This is ｂecａuse durｉng tｈe reａctiｏｎ，each atom ｏｆ cａrbon needｓ eｘａctlｙ two atoms ｏf oxygen ｔo combｉnｅ with, to ｐroduｃe the CO2, and ｅvｅry twｏaｔｏms of ｈydrｏgen need an atｏm ｏf oxygen tｏcombine wiｔｈｔo proｄuce ｔhｅH２O． If thｅ pｒｏportiｏns ｏf thｅ reactaｎtｓarｅ nｏｔ reｓpecｔed, when ｔhey arｅ foｒｃｅd ｔｏreacｔ, eitheｒ not all oｆｔhe ｓuｂstance used wilｌparticipate in tｈe re ａｃｔion, or the reａctiｏｎ that wｉll take pｌace ｗilｌbｅ dｉｆfｅｒent ｆｒom tｈe ｏne noteｄin ｔhｅ equatｉon.. 什么是化学反应 一个化学反应发生在物质（反应物）碰撞有足够的能量去重新排列,形成不同的化合物(产品）。当反应发