2020年中考英语作文总复习题及答案解析 (80)

2020年中考英语作文总复习题及答案解析 (80)
2020年中考英语作文总复习题及答案解析 (80)

. .

2020 年中考英语作文总复习题

1.Write at least 60 words on the topic "Sometimes troubles can also make us go forward". (请 以"有时候麻烦也能促使我们前进"为题,结合自己的亲身经历,写一段不少于 60 字,中心突出、语

言正确、叙述流畅的短文)(标点符号不计入字数)

以下表达供参考:

learn from

on the other hand overcome

【分析】【高分句型一】

Poor academic performance is one of the biggest troubles .此句是一般现在时的陈述句.运用

短语 poor academic performance"学习成绩差";短语 one of the +形容词的最高级+名词的复数形

式."最…的之一",因此此句可翻译为"学习成绩差是麻烦的最大问题之一."

【高分句型二】

In the face of trouble ,On the one hand we should attach importance to it ,on the other

hand we should try our best to solve it and overcome it .此句是一般现在时的陈述句.运用

短语 on the one hand …on the other hand …"一方面…另一方面…",短语 attach importance to

sth "对某事重视",短语 try one′s best to do sth "尽最大努力做某事",此句可翻译为"麻烦面

前,一方面我们应该重视它,另一方面我们应该尽最大努力解决它并战胜它."

【解答】Sometimes troubles can also make us go forward

As a middle school student , you face a lot of pressure every day .Poor academic performance

is one of the biggest troubles .(高分句型一)If we want to get good grades , we should strive

hard .So Sometimes troubles can also make us go forward (要点一,点明要点.

)I remember

when I was in junior high school , I didn't do well in math .I was under a lot of pressure .There

were many worries .I wanted to give up learning it for a while .I felt

it was a troublesome

matter . Later , with the help of teachers and classmates , I worked hard . I made great

progress in Englishmath .By the second year of junior middle school , my math scores were

among the best in the classs .{要点二,通过亲身经历,阐明要点.} Through this matter ,I realized

that our classmates should learn from each other and help each other . In the face of trouble ,

On the one hand we should attach importance to it ,on the other hand we should try our

best to solve it and overcome it (高分句型二)In a word ,sometimes troubles can also make

us go forward .(要点三,通过此事,我学到了很多知识,明白了一个道理,有时麻烦也能使我们前

行.)

【点评】能够根据提示进行书面表达,能够围绕主题准确使用一定的语法、词汇、短语和句型等,清楚连贯地表达自己的思想,进而完成写作任务.

中考英语作文6大热点话题 + 经典范文,建议熟背!

中考英语作文6大热点话题+ 经典范文,建议熟背! 英语作文在中考英语中,作文分值占比很高,一篇高分作文能给我们冲刺名校增加不少把握。不过,语句不通、不会表达、词不达意、无话可说、句型篇章错乱等往往成为我们走向名校的绊脚石。如何克服这些困难,写出一篇高分作文呢?下面整理了一些往年常考的热点话题及经典范文,希望可以帮到大家。今年比较热门的疫情,点击查看:新型冠状病毒相关考点、疫情范文+课件,一定不能错过! 01 人物篇 对你最重要的人 根据中文和英文提示,完成一篇不少于50词的文段写作。文中已给出内容不计入总词数,所给提示词语仅供选用。请不要写出你的校名和姓名。 生活中有一些人对你很重要。这个人可能是你的父母、老师或朋友。假如你是李华,请你用英语写一篇短文,谈谈对你很重要的人是谁,为什么他(她)对你很重要,以及你想为他(她)做些什么。 提示词语:help, encourage, respect, cook 提示问题: ? Who is very important to you? ? Why is he/she so important?

? What are you going to do for him/her? 经典范文: My mother is very important to me and I love her She is very busy and often goes to bed very late, but sheinsists on getting up early every morning to make breakfast for me. What's more, she often helps me andencourages me to solve problems by myself when I'm in trouble. With her help, I made great progress in my study. She respects my privacy and never checks my mobile phone. I always want to do something for my mom. Mother's Day is coming. I'm going to make a surprise breakfast for her on that day. 你最想感谢的人 根据中文和英文提示,完成一篇不少于50词的文段写作。文中已给出内容不计入总词数,所给提示词语仅供选用。请不要写出你的校名和姓名。 假如你是李华,在你的成长过程中,一定有某个人陪伴你、影响你、感动你,让你健康、快乐成长,学会感恩、学会回报。你们学校的《英语园地》正在以“Learn to Be Thankful” 为题征文,请你写一篇文章。谈谈你最想感谢的人是谁,他/她是什么样的人,为什么感谢他/她。

上海初三一模英语作文题目及范文

2015年上海初三一模英语作文题目及范文精选 宝山区2014-2015学年度第一学期期末质量抽查试卷 初三英语 Recently there has been a discussion about the topic “Water Is Precious” in your class. Please write at Host 60 words about the topic "Water Is Precious" to express your point of view,(请以“水是珍贵的”写一篇至少60词的作文,标点符号不占格) (你的作文内容须包含以下几点) 1)Why is water very important in our life? 2)What are the causes of the water shortage? 3)How can we protect our precious water resources? 范文(1) Water is precious Undoubtedly , no man can live without water. When we begin the new day, we need water to drink, wash things, work. Farmers need water to make the crop grow healthily. The factory needs water to process the production. Animals need water to live their lives. However, polluting and wasting make precious water less and less. Some immediate actions must be taken to protect water resources. As students, we should have the sense of saving water. Saving a little day by day, it would make a big influence on protecting water. Given all of its importance and urgency, we must spare no effort to do what I have suggested you. 范文(2) Water is precious Water is the birthplace of life and it plays an indispensable part in our daily life,so water is very vital for us human. Although the ocean covers 71% of the surface of the earth ,there are many people who can’t get access to water in the world. But how can this be? Above all, the water shortage results from the huge number of people on the world who take it for granted using the water immoderately. Another reason for water scarcity is water pollution caused by farming and chemistry industry. Facing these two main reasons, we are supposed to save water in our daily life and reuse it. Only in this way can we protect our precious water resources. 崇明县2014-2015学年度第一学期教学质量调研测试卷 初三英语 Write a passage of at least 60 words on the topic "Changes in my school".(以“学校发生的变化” 为题写一篇不少于60个词的短文,标点符号不占格。) (注意:短文中不得出现考生的姓名、校名及其他相关信息,否则不予评分。) Use the fallowing points as a reference(以下提示仅供参考) -----What changes have taken place in your school? -----What do you think of these changes? (注意:文中不得出现任何姓名、校名及其他相关信息,否则不予评分。)

陕西省2018年中考化学试题及答案解析(真题卷)

陕西省2018年中考 化学试题 1. 化学使世界变得更加绚丽多彩。下列认识不合理的是 A. 垃圾分类回收有利于保护环境、节约资源 B. 大量使用化石燃料符合“低碳经济”理念 C. 研制合成新药物为生命键康提供保障 D. 材料科学的发展为实现“中国制造2025”提供有力支撑 【答案】B 2. 规范的实验操作是实验成功的关键。下列配制20g 10%的氯化钠溶液的操作中不规范的是 A. A B. B C. C D. D 【答案】B 【解析】配制20g10%的氯化钠溶液需要氯化钠的质量为20g×10%=2g。A、称氯化钠固体时将氯化钠从试剂瓶中取出时,瓶塞倒放,称量时,使用2g的砝码,天平左右两边各放一张大小相同的干净纸片,正确;B、量取18mL水的体积应使用能一次量取最小规格的量筒,应选用20mL量筒进行量取,错误;C、溶解时使用玻璃棒搅拌,加速氯化钠的溶解,正确;D、装瓶时,瓶塞倒放,用玻璃棒引流,慢慢将配置好的氯化钠溶液注入试剂瓶中,正确。故选B。 点睛:熟悉各种仪器的用途及使用注意事项、常见化学实验基本操作的注意事项是解答此类试题的关键。 3. “宏观辨识与微观探析”是化学学科的核心素养之一。对下列事实或做法的解释正确的是

A. 铁质水龙头表面镀铬可防锈——改变了金属的内部结构 B. 众人拾柴火焰高——可燃物越多,着火点越低,越易燃烧 C. 用明矾净水——明矾可降低水中钙、镁离子的含量 D. 氧气能被液化贮存于钢瓶——分子间有间隔且间隔能改变 【答案】D 4. 在“宏观-微观-符号”之间建立联系是化学学科特有的思维方式。对下列图示信息的分析不正确的是 A. 硅单质是制造芯片的重要材料,图①是硅原子的结构示意图 B. 图②对应的元素属于金属元素 C. 图②④对应元素组成的化合物是由分子构成的 D. 若图③中x的值为8,则其粒子符号为O2- 【答案】C 【解析】A、硅单质是制造芯片的重要材料,硅元素是第14号元素,硅原子中含有14个质子,14个电子,图①是硅原子的结构示意图,正确;B、由粒子结构图可知,该元素是第11号元素钠元素,属于金属元素,正确;C、图②对应元素是钠元素,图④对应元素是氯元素,它们组成的化合物是氯化钠,是由离子构成的,错误;D、图③是第8号元素,氧元素,若x的值为8,则其粒子符号为O2-,正确。故选C。 点睛:掌握粒子结构示意图和元素周期表信息示意图是解题关键。 5. 分析下列化学反应,所得结论不正确的是 2C+O22CO C+O2CO22CO+O22CO2 A. 反应物相同,参加反应的物质的量不同时,生成物不同

中考英语作文 新生事物评价

中考英语作文范文赏析:新生事物评价 【八、新生事物评价(热点)】 这是中考热点,这类文章的特点是写作难度大,因此需要学生掌握方法,和基本句式,以做到考试时心中不乱。 典型例句: https://www.360docs.net/doc/fd17036951.html,puter is becoming more and more important 2.we should make good use of it. 3.It maybe get in the way of(妨碍) our study. 4.We can do lots of things with(有多种方法来应对/处理) it。 5. It makes our life more easy 6.Nowadays mobile phones are becoming more and more popular among the middle school student s. 例文 1、网上购物 Doing Shopping Online With the help of the Internet, shopping is not a difficult job. Just click your mouse to ch oose the article you like, and the shopping is finished. You needn’t step out of the room. It seems easy and quick. But there’s always a trap(陷阱) online. If you are careless, it will bring you some trouble. You may find the color of the article is different from what you w ant, or the size is either too small or too big. If you want to be different, you"d better not buy clothes online. Once you put on the clothes you bought online and go out, you will find many people wear th e same clothes in the street. 2、关于中学生使用手机

2008-2014长沙中考英语作文真题(带范文)

长沙市2008年初中毕业学业考试 下图是Gina对班上同学的周末活动进行调查后得出的结果;同学们的周末活动真是丰富多彩。想想你和你的同学是如何度过周末的?写一篇名为“Weekend Activities”的文章谈谈你们的周末活动。 要求:1.语意连贯,句式规范,字迹工整; 2.文中不得出现你的真实校名和姓名; 3.词数60—80; 4.开头已给出,不计入总词数。 Weekend Activities In my class, most of my classmates have colorful weekends. _____________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________

2018年河北省中考化学试卷(含答案与解析)

可能用到的相对原子质量 : H :1 C :12 O :16 Na :23 Mg :24 S :32 Cl :35.5 _ -------------------- __ 第Ⅰ卷(选择题 共 24 分) _ 卷 _号 生 _ 考 __ __ __ _ __ __ __ 名 __ 姓 __ 答 __ __ __ __ __ 题 __ __ A . Al 3+——铝离子 B . 2K ——2 个钾元素 C . F ——2 个氟原子 D . 2SO ——3 个二氧化硫分子 64 65 3.下列 ------------- ------------- 绝密★启用前 6.如图所示是某化学反应的微观示意图,下列说法正确的是 ( ) 在 -------------------- 河北省 2018 年中考试卷 化 学 _ __ __ __ __ __2.如图所示实验操作正确的是 ( ) _ _ __ _ _ _ _ _ _ _ _ 学 业 毕 (满分 53 分,考试时间与物理共 120 分钟。) 此 Cu : Zn : 一、选择题(本大题共 12 小题,每小题 2 分,共 24 分。每小题只有一个选项符合题 意) -------------------- 1.鸡蛋中富含的营养素 是 ( ) A .蛋白质 B .维生素 C .油脂 D .糖类 上 -------------------- A .加入固体 B .量取液体 C .收集氢气 D .点燃酒精灯 _ --------------------有关空气成分的说法不正确的是 ( ) A .稀有气体可用于制作霓虹灯 B .氮气充入食品包装中可以防腐 C .二氧化碳是一种空气污染物 D .氧气主要来源于植物的光合作用 -------------------- 校 4.下列化学用语所表达的意义正确的是 ( ) 2 3 无 5.推理是学习化学的一种重要方法,下列推理合理的是 ( ) -------------------- A .离子是带电荷的粒子,则带电荷的粒子一定是离子 B .单质是由同种元素组成的,则只含一种元素的纯净物一定是单质 C .中和反应有盐和水生成,则有盐和水生成的反应一定是中和反应

中考英语书面表达的几点分析与建议

xx英语书面表达的几点分析与建议 中考英语书面表达试题属综合运用型的试题,考查学生对英语语言基本知识的运用程度,是整套英语试题的“压轴题”。中考英语作文可分为两大类:一是命题作文,如My school/family/class/hometown等;二是材料作文,其特点是给出特定的书面材料并用所给出的语言材料或信息来确凿地记述、描写、转达某一活动的内容或动机,从而达到书面语言交际的目的,包括英文书信、日记、英文请假条、便条、英文讲稿、发言稿、介绍、英文通知、看图写话等。 近年我省各市的中考英语作文基本上是材料作文。 引言:书面表达的考查给学生提供了用英语表达自己的观点和愿望的空间。 既考查学生的语言基本功,又考查学生综合运用语言的能力。在平时的课堂教学中,对写的训练要从入门时期抓起,按照“词-句-段-篇”的训练程序,由易到难,循序渐进,通过采用抄写、默写、听写、仿写、汉译英、看图写话、给材料作文等例外形式,训练学生的写作。 在复习阶段,还应就一些中学生熟悉的话题或者亲身参与过的活动作为素材进行写作练习,书信、电子邮件、求职信函等应用文体也不容忽视。材料作文要给学生创设语境,题材应属于“有话可说,有话想说,有话能说”。 在中考英语科的考试中,书面表达仍是不少学生最单薄的环节,相当一部分学生提笔无话可写或一写就错,危机影响了中学英语素质教育的发展。因此,我们有必要认真分析学生在书面表达中存在的一些带普遍性的问题。帮助他们提高这方面的动手能力。从大量的学生习作中不难发现,书面表达题主要存在以下五个方面的问题: 缺主语,缺谓语,或主要句子成份不全,“系表”不分。 不遵循英语句式要求,按汉语思维或习惯拼凑中国式英语。 如:There are many people study interested in the film TITANIC.用错时态,写错动词的形式,第三人称单数形式漏加“S”。写作时想不到应考虑动作发生的时间例外,主语是否是谓语所表示动作的执行者,应用例外的时态、语态去描

2020年上海中考英语真题分类汇编 专题 短文填空 (学生版)

专题短文填空 【2019】 C.Fill in the blanks with proper words(在短文的空格内填入适当的词,使其内容通顺。每空格限填一词,首字母已给) Paul was my little brother,and he was special.He was different from me because he sat in a wheelchair,and he was blind.Lots of times when we walked with Paul,other kids came over and asked us why he was in his chair and why he couldn’t s___56___.They thought he was different because he had his own school bus and had to go to a special school.But that's not really the reason.Paul was different for the things just our family knew about-only we knew the s ___57___ that made him special . Paul helped me hear small sounds.Every time I was with him,I'd have to beg q___58___to hear the flying birds and the talking trees he heard. Paul helped me exercise.When we went for a walk,we'd often go uphill.When I pushed his chair all the way to the woods at the t___59___,I was really getting my exercise! Paul h___60___ ever complained.He went along with whatever the rest of us wanted to do.One time when he had a fever,he got uncomfortable,but he never shouted or fought or asked me to switch the TV channel. Sometimes Paul let me put things in,his hand.We played a kind of guessing game.I put different toys there for him to f___61___He was always surprised when I let him hold something new. Paul was my friend.He couldn't talk to me like most of my friends,and he couldn't run outside to play.But he was there for all the peaceful times,and he had the best smile in the world. I was l___62___ to grow up with him as his sister.He helped me to realize that there is a good side to every situation,if we simply make the choice to find it.

中考化学试题答案解析

2012年广东省广州市初中毕业升学考试化学试题解析 一、选择题(40分) 1.空气是一种宝贵的自然资源,下列气体不可直接从空气分离获得的是() A.用作医疗急救的氧气B.用作焊接保护气的稀有气体 C.用作食品防腐剂的氮气D.用作清洁燃料的氢气 【解析】选D。分离液态空气的方法可以得到氧气、氮气和少量的稀有气体;空气中几乎不含氢气,不可直接从空气中分离获得。 2.下列物质性质的描述中,属于化学性质的是() A.甲烷可以在空气中燃烧B.金属汞常温下是液体 C.高锰酸钾是紫黑色固体D.银具有良好的延展性 【解析】选A。甲烷的可燃性属于化学性质;物质的状态、颜色、延展性都属于物理性质。3.下列物质中属于氧化物的是() A.Ca(C1O3)2B.Zn(OH)2C.MnO2D.O2 【解析】选C。氧化物是由两种元素组成,其中一种是氧元素的化合物。A属于盐,B属于碱,D 属于单质。 4.下列服装面料中属于有机合成材料的是() A.蚕丝B.棉布C.羊毛D.涤纶 【解析】选D。蚕丝、棉布和羊毛都是天然纤维,涤纶属于有机合成材料。 5.下列说法正确的是() A.铝是人类最早利用的金属材料 B.铜是目前世界年产量最高的金属 C.大多数金属元素在自然界中以单质形式存在 D.日常使用的金属材料大多数是合金 【解析】选D。人类最早利用的金属材料是铜;铁丝目前世界年产量最高的金属;少数金属元素如金、银在自然界中以单质形式存在,大多数以化合物的形式存在。 6.化石燃料是不可再生的能源,下列不属于化石燃料的是() A.煤B.石油C.乙醇D.天然气 【解析】选C。化石燃料包括煤、石油和天然气。 7.有一些物质,它们中的一些原子集团常作为一个整体参加反应,下列物质中含有原子集团的是() A.NaCl B.NaNO3C.CaCl2D.KCl 【解析】选B。硝酸钠是由钠离子和硝酸根离子构成,硝酸根是原子团。 8.下列各种物质中,氯元素化合价最高的是() A.NaClO4B.HCl C.NaClO D.ClO2 【解析】选A。根据化合价代数和为零可以求算四种物质中氯元素的化合价分别是+7、—1、+1、+4。 9.下列关于碳和碳的氧化物的说法正确的是() A.金刚石和石墨硬度都很大 B.二氧化碳和一氧化碳都能灭火 C.二氧化碳可作为大棚种植农作物的气体肥料

中考英语作文题型分析与例文评析

中考英语作文题型分析与例文评析:命题作文 命题作文即给出一个统一的题目,限定考生写作的具体范围,要求考生就同一主题展开叙述或评论。写好命题作文的关键是紧扣主题、立意明确、观点清晰。 命题作文 [例1]To be a lovely Shanghainese(20XX年上海市英语中考题) 审题:该题的重点在于阐述作为一个可爱的上海人,我们关键应怎样做?在20XX年的考生作文中,有一部分同学发生了严重的偏题,把描述重点放在形容上海是怎样的一个大都市,因此失分很多。由此看来,审题的准确是非常重要的。 学生作文:Shanghai is developing quickly everyday. Quite a few foreigners come to visit Shanghai. As the hosts of Shanghai, we must be lovely Shanghaineses to tell the visitors that Shanghai is an international city. To be a lovely Shanghainese, first, we should do our best to make the city more beautiful to show our enthusiasm. Next, we should be kind and friendly to everyone. We must do so to make our guests fell our zeal. Finally, we should study and work hard to rise our ability. Shanghai is developing and we should make progress to follow the epoch. 教师评析:该篇作文行文流畅,结构清晰,以“first,Next,Finally”的结构描述,层次感很强。不定式的恰当运用体现了考生较好的语法功底。 教师拟评分:9分 [例2]Four years' school life 审题:该题要求考生对四年的初中生活进行回顾和总结,适合以夹叙夹议的方式来写作。(此外,从情感教育的角度来看,阅卷老师总希望读到考生回忆自己美好、快乐的初中生活,而不是讨厌自己的母校、老师、同学等消极情绪的体现。) 学生作文:I've been in my middle school for four years. Four years' school life plays an important role in my life. I enjoy making friends, getting knowledge and having interesting time in my school. I have also made friendship with lots of classmates, and I have also been taught different lessons by lots of different patient teachers. I have grown up a lot in the past four years. I will never forget my four years' school life.

中考英语作文话题(八)建议劝告

八、个人观点建议(提建议、劝告等)本话题所涉及语言知识

(一)例文审题 假设你是某中学生英语杂志V oice of Students栏目的编辑Mary, 请你针对Tony 的来信谈谈你的看法并提出建议。 Dear Mary, I am a middle school student. Our teacher always asks us to work in groups. One student in our group always doesn’t finish his work on time, though he has promised us that he would. The other three of us feel unhappy about it. What should we do? Shall we go on working with him? 人称:你/你们---第二人称 时态:一般现在时 内容:回答问题,看法, 建议 (三)单句翻译/造句成文

11.你最好找出他没完成任务的原因。 12. 如果他真麻烦,作为组员,分担困难是你的责任。 13. 向老师求助是一个很好的主意。 14. 老师是一个能帮助你和他更好沟通的人。 to cooperate with partners. __________, you should go on working with him _________ you are a team, ______________. Here is some advice for you. _______, you should ask him ______ he couldn’t finish the work. ___ he is in trouble, you should help him out. ________ you can tell him you are willing to work with him. ____________________, you can ask your teacher for help. I hope ______my advice will help you with your problem.

最新中考英语满分作文真题解析 范文背诵 完整版 (7)

中考英语满分作文真题解析范文背诵 一、Great changes in my hometown More than twenty years ago, my hometown was just a small , old and poor town. Most of people were farmers. There were few factories. The people didn’t have enough food to eat and wore old clothes. They had a hard life . Great changes have taken place in the past twenty years . The people have found a lot of ways of making money . Now there are many tall buildings . They are very beautiful . Roads are wide and clean . People can take buses or drive their own cars to go to work . Many people have cell phones and personal computers. People’s living conditions have improved a lot . Thanks to the government’s efforts . my hometown is becoming more and more beautiful . 二、Save the earth How to protect the environment has become one of the biggest problems in the world . It’s our duty to protect our environment . No matter where we live , we should do something to keep our neighborhood clean and tidy . We can collect waste paper or other waste things for recycling. We should plant more trees and we should prevent those factories from pouring waste water into rivers, lakes and fields. We shouldn’t leave rubbish everywhere and spit in public places . We mustn’t pick the flowers or step on the grass in public. If everyone tries his best to protect the environment , the world will become much more beautiful and our life will be better and better . 三、Improve our environment Good environment can make people feel happy. To improve the environment means to qualify our life . What should we do to improve our environment ? We should plant more trees . And we should prevent those factories from pouring waste water into rivers , lakes and fields . Whenever we see litter on the ground , we should pick it up and throw it into a dustbin . Don’t spit in public places . Don’t draw on public walls . It’s our duty to keep our earth clean and tidy . 四、Pollution around us In recent years our life is becoming better and better. But our environment is becoming worse and worse. It’s very bad for our life. Now many people have air-conditioners and cars, they produce (give off ) waste gas. More and more trees are

2019中考化学试题及答案解析精品教育doc

2019中考化学试题及答案解析 一、选择题(每题各有一个正确答案,共16道小题,每题1分,共16分) 1.(1分)(2019?青岛)厨房里发生的下列变化中,不涉及化学变化的是() A. 菜刀生锈 B. 葡萄酿酒 C. 食品发霉 D. 瓷盘摔碎 考点:化学变化和物理变化的判别. 专题:物质的变化与性质. 分析:化学变化是指有新物质生成的变化,物理变化是指没有新物质生成的变化,化学变化和物理变化的本质区别是否有新物质生成;据此分析判断. 解答:解:A、菜刀生锈过程中有新物质铁锈生成,属于化学变化. B、葡萄酿酒过程中有新物质酒精生成,属于化学变化. C、食品发霉过程中有新物质生成,属于化学变化. D、瓷盘摔碎过程中只是形状发生改变,没有新物质生成,属于物理变化. 2.(1分)(2019?青岛)下列燃料燃烧时,能实现二氧化碳零排放的是() A. 氢气 B. 柴草 C. 酒精 D. 汽油

考点:常用燃料的使用与其对环境的影响. 专题:化学与环境保护. 页 1 第 分析:实现二氧化碳的零排放即是在反应过程中不生成二氧化碳气体;根据氢气、柴草、酒精、汽油等常用燃料的生成物进行分析判断即可. 解答:解:A、氢气燃烧产物是水,不产生二氧化碳,能实现二氧化碳零排放,故选项正确. B、柴草燃烧的主要生成物是二氧化碳,不能实现二氧化碳零排放,故选项错误. C、酒精汽油燃烧产物是二氧化碳和水,不能实现二氧化碳零排放,故选项错误. D、汽油燃烧产物主要二氧化碳和水,不能实现二氧化碳零排放,故选项错误. 3.(1分)(2019?青岛)光导纤维是由二氧化硅(SiO2)制成的,二氧化碳中硅元素的化合价为() A. +1 B. +2 C. +3 D. +4 考点:有关元素化合价的计算. 专题:化学式的计算. 分析:根据在化合物中正负化合价代数和为零,结合SiO2的化学式进行解答本题. 解答:解:氧元素显﹣2价,设硅元素的化合价是x,根据

中考英语作文范例+点评

中考英语作文范例:我们的住宅小区 Our Housing Estate 我们的小区 There are many nice housing estates in Pudong New Area. Our housing Rainbow Estate, is one of them. 浦东新区有很多漂亮的小区,我们的小区——彩虹小区,是其中之一。 You can see three in the middle. There is a beautiful garden in front of Block 2. In the gardon there is a . There is a shop on the right of Block 1. A big playground lies on the left of Block 3. You can see many men, women, boys and girls having exercise there. 小区中间有三条街道。在第二条街道前面是一个美丽的花园,花园里有个喷泉。在第一条街道的右面是一个商店,而第三街道的左边是一个巨大的运动场,可以看到男男女女在那边做运动。 There is a small in our housing estate. It is and comfortable for us to live in our housing estate. 在我们的小区有一个小小的幼儿园。对于我们来说,住在小区十分方便和舒服。 点评:文章的结构与布局较合理,有一定的顺序,层次分明。 中考英语作文范例:我们的语音室 编辑点评:中考英语作文的另一种类型是说明文。说明文是就某一件事说明清楚,一般总是以空间顺序展开的。写物的文章常用“某处有某物”的句子表示物的存在。 说明文是就某一件事说明清楚,一般总是以空间顺序展开的,可以自上而下,自左而右,从里到外,从整体到局部等等。写物的文章常用“某处有某物”的句子表示物的存在。

2007—2017河南省中考英语作文真题汇编(含范文)

河南中考英语作文2007-2017年汇编(含范文) ★中考英语作文评分标准 据标准答案和评分标准规定,英语书面表达的满分为15分,分4档评分: 第一档(13~15分),符合题目要求,内容完整,层次结构清晰, 表达清楚,语言无误。 第二档(9~12分),基本题目要求,内容较完整,层次结构较清晰, 表达较清楚,语言有少量错误。 第三档(4~8分),部分内容符合题目要求,内容不够完整,层次 结构不够清晰,表达不够清楚,语言有较多错误。 第四档(0~3分),不符合题目要求,整片表达不清楚,或照抄、拼凑几个词语。

范文: Dear teachers and schoolmates, We are sorry to see so much waste in our school!We students often leave the ta ps on after cleaning our hands,and leave lights on when we leave.In the classroom, we often see a lot of paper is wasted.At the dining hall,we can see food left on t he tables after meals. I think we should save water and electricity.We should make good use of our sch ool things.Don't throw food away.Let's try to make a good habit and save things a round us.Let’s do it from now on! Class1,Grade9 范文: Dear Ms Li, How are you? I have a lot of troubles these days.Every day I have a lot of homework to do at scho ol.I don't have enough time to sleep.I nearly have no time to do sports.My friends and I can hardly find time to talk,or play together.When I get

相关文档
最新文档