谁能帮我度过物理危机啊我现在上初三了，期中考试才考了73分。其中有20分都是被物理电学扣掉的。对于电学这一区域，我很迷茫

Your grandmother's physical condition is now right?I sincerely pray that your grandmother had a dangerous period,the body can recover!

解题思路：根据已有的知识进行分析，有机物是指含有碳元素的化合物，一氧化碳、苯、甲醛等有毒物质能污染环境，对人体有危害，注意环境保护，根据化合价规则，在化合物中各元素正负化合价的代数和为零，即可求得化合物中某元素的化合价．

（1）甲醛、苯、甲醇等都是含有碳元素的化合物，属于有机物，这些物质挥发出的气体都有毒，在搬入新装修的房屋之前，应该注意通风换气、检查室内气体的含量等，故填：有机物，经常通风换气，委托环境监测部门检测室内空气中有毒气体的含量；
（2）在室内吸烟、炒菜都能造成室内空气污染，所以本题答案为：炒菜时产生的油烟；
（3）在化合物中，钛元素和氧元素的化合价的代数和为零，氧元素的化合价为-2，设钛元素的化合价为x，则有x+（-2）×2=0，解得x=+4，所以本题答案为：可以求出钛元素的化合价为：+4．

点评：
本题考点： 有机物与无机物的区别；空气的污染及其危害；常见元素与常见原子团的化合价；有关元素化合价的计算；常见中毒途径及预防方法．

考点点评： 本题主要考查了物质的分类方法、环境污染等方面的内容以及化合物中元素化合价的求算，完成此题，可以依据已有的知识进行．

我选了两篇自己认为还可以的文章!你看看行么?祝你好运! 我的寒假生活 我的寒假生活过得十分充实,十分快乐. 寒假里,我一般先自己订一个学习计划：每天写一小时作业,读一个半小时的书,做两道奥数题,背一课《新概念英语》和做配套练习,其它时间由自己自由支配. 寒假里经常看书可以丰富自己的课外知识,扩大阅读面.我通常是在网上看书的,网上可供阅读的电子书非常多,我最喜欢去亦凡书库、北极星书库和我爱e书网站,这里的电子书既可以在线阅读,也可以下载到电脑硬盘里让你慢慢欣赏,而且基本上上免费的,阅读起来非常方便.古人说“书中自有黄金屋”,果然不假,寒假20天里,我在电脑上读完了《华盛顿》、《林肯》和《拿破仑传》、《巴顿将军》,被他们的卓越的政治远见和军事才能所折服,……我在浩瀚的书海中尽情地遨游着. 寒假里我把可自由支配的大部分时间用来做自己想做的事情——上bbs.我除了在成长论坛担任版主以外,还在加拿大中文网站申请了一个自己的免费论坛,取名“小荷才露尖尖角”.为了让论坛显得有特色,我费劲心思在网上搜索各种网页特效,去了几十个别人的论坛学习,象怎么设置友情链接、论坛音乐、背景图案、鼠标光环、计数器等,我都试验了好多次才成功.我渐渐学会了用一些软件制作简单的动画,光做小荷才露尖尖角的logo图标,就花了我整整一天的时间呢!我的论坛终于焕然一新了,打开我的论坛,在“雪绒花”的音乐声中,落花缓缓向下飘落,点击鼠标时闪烁着“雪飘欢迎您的光临”（注：我的网名叫万里雪飘）的字样,令人心旷神怡……然后我在很多bbs上发帖邀请大家光临我的论坛,一些网友叔叔阿姨和朋友同学们纷纷前来向我祝贺,成长论坛的很多老师也来做客,许多远在他乡异国——加拿大的哥哥姐姐们也常来我的论坛发帖助阵,他们都夸我论坛设计得很有创意.虽然我的论坛人气不是很好,但寒假20多天点击率超过了上千人次.通过寒假办个人论坛,我的电脑技术突飞猛进,学会了许多课本中学不到的知识,最重要的是还结识了许多来自五湖四海的好朋友.非常惋惜的是后来那个网站的空间出了问题,以至于进不去了. 寒假里玩当然也是必不可少的了,我最喜欢到“联众世界”、“边锋网络”里玩“四国大战”、“三英战吕布”和一些网上益智游戏,偶尔有打几盘“泡泡堂”……总之,适当的玩游戏也可以锻炼自己的思维和智力,给我带来了无限欢乐. 我喜欢寒假,喜欢寒假的生活,朋友们,你们觉得我的寒假生活精彩吗? 我的寒假生活 考试结束,收起卷子,放下书包,拿着满意的成绩单,站在蓝天白云之下像小朋友般的高呼一句:“我放假了.”紧张的一个学期结束了,抛开课业负担,丢掉考试压力,飞出笼子的鸟儿将要面对是一片蔚蓝的自由天空! 对于我来说,我更喜欢寒假,尽管它没有暑假的时间长,可它却有暑假所不具备的很多优点.比如说,寒假没有暑假的酷热难耐,虽然冬天也有它强烈的季节特点,但能在寒冷的冬天尝到一觉饱睡到太阳升到你头顶的滋味是感觉非常不错的.又比如说,寒假的到来就意味着快过年了,过年对中国人来说是很重要的.它象征着一切不美好的东西都会随旧的一年而去,我们即将迎来的是一个新的开始,一切都过去了,一切又都开始了,这种独特感觉也是在暑假中找不到的,它是寒假所独有的. 我的这个寒假不但比暑假过得有滋有味也与以往的寒假有所不同.因为在我们小小的三口之家中有了新成员——一个可爱的小男孩.他是我的小弟弟,也是我们一大家子人的小宝贝,正是他给我的寒假生活添上不一样的色彩. 这次寒假我很少一睡睡到太阳老高,而总是在7点或8点钟很自然的就醒了,然后连鞋都顾不上穿就跑向妈妈的房间和弟弟“聊天”.因为我弟弟生来就不喜欢睡觉,他属于“精力旺盛”型的,从落生直到3个月大一直如此,为这我妈妈现在还很烦恼. 除上面所有“优点”（我认为那是优点,因为我小时侯也不爱睡觉）以外,我弟弟的“口才”也是一流的,还不到两个月的时候就会对人“哦,哦”的讲话了.在寒假期间经过我的训练,讲话已经会转弯儿了.有时甚至会发出类似于“爸爸”、“哥哥”的字眼.除早上时间,我一有空都会和他聊,虽然我说的话自己听不懂,但我想他一定能听得懂,因为我们说的是同一国的语言.总之他咿咿呀呀,我也咿咿呀呀,在他的带领下我们仿佛有一种返朴归真的感觉. 在这期间,我还主动帮小弟弟洗衣服.要知道平时我连自己的衣服都不想洗.可帮他洗衣服时,我却是那样高兴,每一个地方都洗得那么认真,不放过任何一个细节.也许在他长大后我能颇自豪地对他说：“你小时侯的衣服是我辛苦帮你洗得,你一定要听我的话懂了吗?”而他呢,则会乖乖的拉着我的手听我说每一件事.这些听起来也许很可笑,但在我看来并没有丝毫的可笑之处,而只是感到幸福和快乐.当了14年的独生子女的我,突然有了个弟弟,那份喜悦是用言语形容不上来的. 就这样,在与弟弟的聊天中我度过了寒假,在认真帮他洗衣服时我度过了寒假.这次的寒假生活虽然平淡,甚至是千篇一律,但我十分享受这样的生活.看着他天天长大就好像看着自己小时候的成长过程,这并不是每个人都能体验到的.我享受这样的寒假生活,也爱这种平淡而又不同寻常的寒假生活.

下面这篇是我自己写的.如果嫌太多的话,可以把我补充的去掉.
Today is Saturday.It is nine o’clock in the morning.Bob’s family stay at home because it is raining outside and they feel cool.Bob is reading a sport magazine.He likes sports very much.His father is reading newspapers.His mother is listening to the music from her mp3.
His sister,Sarah is playing with her toys.She is only three years old.His brother,Mike is drawing a picture.He wants to be an artist.They are all happy.

My Holiday I had a short holiday. It was three days. On the first day I did my homework. I played computer games.
On the second day I helped my mother clean the room. I visited my grandparents. On the third day I went to
the park. I saw many flowers. I took many pictures there. I was tired but I was very happy.
答案不唯一

Hello everybody.My name is Stone.I come from Guangdong province in China.;
嗨,大家好.我的名字叫石头,我来自 中国广东.
I am very happy to come here to study with you.;我很高兴来这里和你们一 起念书.
When I arrived at this school three days ago,I fell in love with it.;
当我三天前来到这个 学校时,我就喜欢上它了
It is so beautiful and exciting here,and everyone is kind to me especially Kim.;
这里是那么美丽,那么振 奋人心,这里的每个人都 对我很亲切,
特别是Kim 老师.
This class feels just like one big family to me.;
而这个班集体对我来说就 像一个大家庭.
I'm interested in sports,music and mountain climbing.;
我对运动、音乐和爬 山很有兴趣.
I hope I can become your friend soon.Thank you very much.;
最后,我希望我能很 快成为你们的朋友,

作文一：暑假即将来临,你将如何度过你的假期,请制定一份计划.
The summer vacation is coming soon.We will have a two-month holiday.
After a tiring school year,I’m going to relax myself.I will spend my vacation with my grandparents.I will stay with them for about three weeks.Of course,I am going to help them do some housework.Perhaps we will take short trips.Besides,I am going to visit some of my old friends.I think we will have a happy time together.What’s more,I will be a senior student in the new term,so I am going to make some preparations.
作文2二：描述暑假的一次度假经历或有意义的一天
I like traveling very much.My trip to XiAn is really unforgettable.Before I went there,I always wanted to see Bin Ma Yong,so I chose to go there.I went to there by train with my parents and I had breakfast in the hotel.Then we went there by bus.When I got off the bus,I was very excited.I saw a lot of false man whose hand with all kinds of things.I took many pictures.Finally we went back the hotel in the afternoon.Though I was very tired,I felt very happy.I dwill never forget it for ever.

This is the first New Year which he spent in London.

Very glad to share with you through junior middle school three year time.Working together,let us grow together!

希望我的回答对楼主有用!为了让阁下更清楚这篇文章的脉络,鄙人现在把文章分为四部分：标题；What would you like to do in your last Children's Day?1 The Children's Day this year is the most unforgettable one for me beacause i'll soon graduate from the primary school.
Even though it doesn't come yet,i believe it must be the most unforgettable.
　　I will no loneger be a child once going to middle school.2 When the Children's Day comes,I will go to the Chongqing Museum to visit the spaceship Yang Liwei took in the space .In order to go to my destination,I am going to take the number 464 bus there at 8：30 a.m.out side the school gate .
3After visiting the Chongqing Museum ,My father is about to take me to the zoo,where are many kinds of animals,the tigers,the pandas,the lions,the elephants,the giraffes and the bears.4 What a unforgettable Day for my last Children's Day !这四部分组合起来就是一篇完整的文章了~

赠给兄台一首我写的诗：
苏洵中年始读书,高祖迟暮斩白蛇.壮士莫嗟桑榆晚,及时奋起挽天河.
人生的笔记,写了四分之一,也不要把笔记本撕掉,因为,不确定你能不能买一本新的.接下来的四分之三,尽力写,努力写,好好写!苏秦中年了,才知道知识和读书的重要,高祖迟暮之年斩白蛇起义成就一番伟业.永远不要觉得晚了晚了.及时奋起,才是真男儿!

On New Year's Eve,our class had a party.The atmosphere was good.It was out of the ordinary from the very begining.The boy student from one bedroom gave an unusual performance.We saw a boy named Li Xinmin turn off all the lights in a sudden snap.Then with three resounding crow of a cock echoing in the hall,the hall was again brightly lit in a snap.
Then,the representative of the bedroom Zhu Guozhang asked us to guess a line of a poem related to the above situation.He added that Li Xinmin alone was born in the year of the dog and the other three were all born in the year of the chicken.
They left us all in confusion.And it was our monitor who was quickwitted.He shouted our,"The day breaks as the cock crows three times at dawn." The hall After that,they had another item.This time Li Xinmin was placed in the middle of the circle.While he was standing there,the other three stood around him,each bowing down to him at an angle of 120 degrees.It was an idiom.This time I got it right:"The dog stands out among a group of chickens."

Dear Leo,
I haven’t heard from you a long time.
Now I'm so excited to tell you that I had a good time during the holiday. I with my family drove to Darning Lake for a trip. I can still remember the moment when we were running along the lake, laughing happily and having a picnic together. Besides, when sitting on the grass for a break, the sun was shining and the cloud was flowing, which made us comfortable and delighted. You know, it's the happiest holiday that I have ever had. So we stayed there for a week.
Will you share with me your happy time in the holiday?
Yours,
Jake

上面那位兄台的意思是:我想和你留一个令人兴奋的夜晚 很不错的翻译
我这有个翻译:我想和你一起过激情夜
I want to spend your night of passion
翻译是没有百分百表达完整的

第一天,我用自己的眼睛去发现身边的人需要什么,然后帮助他们;第二天,我去观察世界的美;第三天,我会将自己最后一点光明去看最后一天的太阳,和自己最重要的人,在海边,看日出,日落,把我看到的东西记在脑海里,化成我一生中最美好的时光,心中的永恒.

I wish you all a happy to spend the night

如果只介绍holiday那就不用,但如果让你描述你过节日就要用过去式

岁月的脚步匆匆,来不及向去年挥挥手,新年就到了面前.新年总会给人太多的憧憬,太多的畅想.
　　我不愿朔风掩去往昔,也不愿冬雪覆盖一切.过去的有多少记忆,多少故事,那怕是伤痛,是挫折,都值得回味、反思.但也不愿沉湎过去,受陈旧的桎梏,那怕是成功,是荣耀.因为过去的毕竟是过去,是人生时段中的一个句点.新年才是新的起点,新的开始.
　　走出沉闷孤寂的围城,漫步在大自然清新的空间,沐浴着新年的阳光和清风.看那冬至后的山野开始泛青,解冻的小河欢畅地向前流去,田头上冒出点点新绿,是在报告新年的喜讯.你会由衷地感到新年的一切多么让人欣喜,人生多么美丽.
　　当我今天站在新年的门槛,一种庄严、神圣之感由心而生.新的一年将是不同寻常的一年,是值得终生记忆的一年.这一年将有多少历史盛事让你振奋和自豪,每个人的人生在这一年都会翻开崭新的一章,都会加倍努力,奋发进取.人生中许多缺撼都会在这一年弥补,事业的失败都会在这一年成功,家庭在这一年更加安康幸福,爱情生活在这一年更加多姿灿烂.总之,一切,一切,新年展现在面前的是一条金光大道,让你豪迈地走向人生的辉煌.
　　新年,有许许多多的畅想,每个人都会用行动诠释,让畅想变成现实.无论年复一年的更替,无论春夏秋冬的轮回,新年定会带给你新的美好!

I would like to spend with you a happy Christmas

第二句的ihr Leben已经是第四格了 此时的in den USA做的是三格 leben不是nennen后面可以加两个第四格

很高兴回答你的问题
人最宝贵的是生命.生命对每个人都只有一次.这仅有的一次生命应当怎样度过呢?【每当回忆往事的时候,能够不为虚度年华而悔恨,不因碌碌无为而羞耻.】

(一年一度）的儿童节又在我们（翘首以待）地期盼中（姗姗而来）这是我们在母校度过的最后一个儿童节.再过几天,我们将（昂首挺胸）跨入中学的大门,从此,告别（无忧无虑）的童年

I got up at 6 o'clock and had my breakfast before seven
I usually read some news from the morning programme through the TV
After that I do some exercises in my bedroom.and then do my homework
At night,I watched TV or surf on the Internet
I went to sleep before 10

He likes that book which you gave him yesterday.

刚上初一的时候我也十分痛苦,面对全新的环境,全新的同学（环境）,还要适应比小学多的多的作业,以及每节课上老师的推进速度,你必须保证每天回家复习当天老师讲过的内容,同时预习下一天的知识.有条件的话最好能保证一日一练,真正做到保质保量的完成学习任务,永远走在老师前面,这是初中生活的硬道理,还有一条浅规则,要学会准备一个错题本,每当考试之前看一看,翻一番,这能让你比同龄人在考试中稳重的多,祝你在三年后中考中取得优异的成绩.
我说兄弟,你完全可以把我上面那繁短话扩展一下,变成你自己的语言,一片600的作文不就出来了吗

(1)居家的空气污染影响人的健康 污染越严重，对健康越不利，危害越大
(2)不在室内吸烟 经常通风 减少污染物的排放等

解题思路：本题考查种子萌发的条件，种子必须同时具备外界条件和自身条件才能萌发，据此答题．

种子的萌发需要满足自身条件和环境条件两方面条件．种子萌发的外界条件为适量的水分、适宜的温度和充足的空气；自身条件是有完整而有活力的胚及胚发育所需的营养物质．且种子不在休眠期．
故答案为：自身条件；胚；空气

点评：
本题考点： 种子萌发的条件和过程．

考点点评： 此题是一道对种子萌发的基础知识的考查，难度一般．

Winter holiday is coming.I have a plan to enjoy my holiday.I'm going to clean my house.Because Spring Festival is coming too.I will go to the flower market to buy some things to decerate my house.And I also prepare to get the red packets!

人最宝贵的东西是生命,生命属于人只有一次.一个人的一生应该是这样度过的：当他回首往事的时候,他不会因为虚度年华而悔恨,也不会因为碌碌无为而羞耻；这样,在临死的时候,他就能够说：“我的整个生命和全部精力,都已经献给世界上最壮丽的事业——为人类的解放而斗争.

Dear Tony,
Thank you very much for giving me the two tickets to the popular concert on my birthday.I went to the concert with my father ,we both liked the concert very much.On that day,I met my favorite star and I had a good time in that evening.I want to say thank you again.I hope you are happy every day .
Yours
Jim

相信科学的朋友,请用科学精确预测一下,智利下一次7级地震发生的时间和地点.
如果预测不出来,那么别用科学来推断末日的真假,科学没那个资格.
连地震都预测不了还敢否定末日,不自量力吧?
勇敢过好每一分一秒,就算下一秒是末日,我也眼都不眨

Dear Sony,I don't know how to express my great thanks to you for the two tickets you giving me on my birthday.I think they are the best present that I have ever received.Moreover,the tickets for that ...

第一个问题,显然不是你理解能力的问题,而是这个翻译.这必须查原文才能定论.但是这句话意思很明白,改写一下：
他们越早明白,他们死亡得就会越清楚,越有价值.
第二句不是问题.
迟获青春者,年轻两个名词太清楚了.关键是：怎么定义青春,什么是年轻.这两个概念理解后,就没有任何问题了.
第三句,牙齿和嘴的比喻配合老人,也无比明确.老人牙齿丢失又如何啃得动食物呢?
这三句话无比明确指向同一个观点,这涉及到尼采本人的一个认知,那就是思想死去的人无法获得任何的真理.你可以看做是一种古代哲学思想的回归.细致解释就不给你了,只有思考才是最有价值的.如果你看懂,那么很多话都是多余的.
无责任吐槽一下,第一句话看不懂没什么,第二三句看不懂就有问题了.还是核心词抓不住.

这样翻比较口语和地道化：Sounds you are gonna have another wonderful trip.

The CCTV spring festival gala is always an indispensable show for the Chinese people during the spring festival.The show happens once a year and has been held for more than 30 years in a row.But the quality of the show has been decreasing over the years.And this year particularly,the show received lots of criticism.I,too,want to say something on this matter.
The Chinese people especially like to have fun and join in the fun during spring festivals.Therefore language programs are essential for the audience.Skits (小品) happen every year in the gala,but the quality of this year's skits were particularly poor.In the Feng Xiaogang-directed 2014 Spring Festival Gala,there were only 5 language programs.One would think 5 are enough as long as they are great.But to people's disappointment,they failed to amuse and impress the audience.
这样也被很多人称为冯家班.没翻.

Graduate soon, the school is not, thank you to accompany me to spend so much time, thanks to the teacher, thank parents, my future, will be glorious

我最厉害的就是写英语作文。 What could have come to some extent convention and then,connection,you can think of,do not think so too soon,intimate you could've,equivalent in Anshan is extending her and looked...

正确答案为：
It is enjoyable for me to spend the weekends with my family.

《出塞》
王昌龄
秦时明月汉时关,
万里长征人未还.
但使龙城飞将在,
不教胡马渡阴山.
译文:依旧是秦时的明月汉时的边关,征战长久延续万里征夫不回还.倘若龙城的飞将李广而今健在,绝不许匈奴南下牧马度过阴山.
解析:这是一首慨叹边战不断,国无良将的边塞诗.诗的首句最耐人寻味.说的是此地汉关,明月秦时,大有历史变换,征战未断的感叹.二句写征人未还,多少儿男战死沙场,留下多少悲剧.三、四句写出千百年来人民的共同意愿,冀望有“龙城飞将”出现,平息胡乱,安定边防.全诗以平凡的语言,唱出雄浑豁达的主旨,气势流畅,一气呵成,吟之莫不叫绝.明人李攀龙曾推奖它是唐代七绝压卷之作,实不过分.

一直伴着我度过了欧洲11年的，难道不是对两位母亲的怀念么？
一架外国报纸轻蔑的说：“中国工程师还不能在南口以北修筑铁路。”
我被作者对母亲崇高的敬意感染了
虽然白天他攀山越岭，但是晚上仍然绘图计算。

y of its failure. This is an example of a singular point in mathematics.. In fact, we all scientific theories are based on space - time is smooth and almost flat on the basis described, so they are in space - time curvature at the big bang singularity of infinite failure. This suggests that people can't use it to determine what happens after the big bang

小题1:C
小题2:A
小题3:C

略

我将这样度过寒假

首先你要有一个目标,比如准备考什么大学,然后就是努力和坚持,别小看这四字,能一直坚持的人没多少.再次就是听好课,找到适合你的复习方法.最后就是努力一年考个好大学.你要知道这一年的努力和坚持关乎你能不能上大学,上什么样的大学!希望对你有帮助!希望采纳!

I really had a happy vacation. I finished doing my homework on time, reviewed my lessons and prepared for the new lesson. I also read some interesting books and learnt how to play tennis. Besides, I v...

生命来之不易

I think these words are an encouragement to me and I'll keep working hard.I hope everyone can have a happy spring festival.

解题思路：水有一定的特殊性，即水结冰时一般是在水的上方，水下温度高于零摄氏度，利用此知识可解决问题．

水在4℃时密度最大，而冰的密度比通常的水的密度还小，所以冰是结在水上方的，无论冰上方温度多低，其下方的水温度仍然高于0°．即使是北极零下四十度的气温下，其水下温度仍然高于0°．而且水中的生物绝大部分都是冷血动物，不需要取暖．假如冰是从水下面开始结的话，那么生物就活不了．
故答案为：水在4℃时密度最大，而冰的密度比通常的水的密度还小，故此江河的冰块只能漂浮于水面，而不会下降，从而使到水中的生物不会被冻死而能安然过冬．

点评：
本题考点： 水的性质和应用．

考点点评： 此题是对水的性质的考查，解题的关键是水结冰时的位置以及水下的温度，属基础性知识考查题．

人最宝贵的是生命.生命每个人只有一次.人的一生应当这样度过：回首往事,他不会因为虚度年华而悔恨,也不会因为卑鄙庸俗而羞愧；临终之际,他能够说：“我的整个生命和全部精力,都献给了世界上最壮丽的事业——为解放全人类而斗争”.