6N大概是一本科学教科书还是一瓶矿泉水?

1
pring is tht best season of the year.The weather gets warmer and warmer.My clas i'amates and I took a one-day sightseeing around our city.The scene was pretty.But when we saw the rivers along our city,I felt very sorry,and thoughit a lot.
With the development of modern agriculture and industry,more and more waste water is being poured into rivers.It has caused serious pollution.The river is becoming so dirty that no living things can live in it.The river is giving off a terrible smell.
We make an urgent appeal that measures should be taken to cope with the situation.Our government should start building various facilities such as sewage treatment!plant and encourage scientists to work out more and better ways to reduce the pollution of water.
Water is tho source of our lives.It is very important to protect water.
2
This is Bill White with with the VOA Special English Environment Report.
We usually think of (1)pollution as a harmful waste (2)substance that threatens the air and water.But some people have become (3)concerned about another kind of pollution.It can be everywhere,depending on the time of day.And it is not thought of as a substance.It is light.
The idea of light pollution has developed with the increase of lights in cities.In many areas,this light makes it difficult or impossible to (4)observe stars and (5)planets in the night sky.In Nineteen-Eighty-Eight,the International Dark-Sky Association formed.This organization wants to reduce light pollution in the night sky.It also (6)urges the effective use of electric lighting.
There are a number of reasons why light pollution is important.One has become clear at the Mount Wilson Observatory near Los Angeles,California.Mount Wilson Observatory was home to the largest (7)telescopes in the world during the first half of the Nineteen-Hundreds.
During that period,Los Angeles grew to become one of America's biggest cities.
Today,light from Los Angeles makes the night sky above Mount Wilson very bright.It is no longer an important research center because of light pollution.
Light pollution threatens to reduce the scientific value of research telescopes in other important observatories.They include Lick Observatory near San Jose,California and Yerkes Observatory near Chicago,Illinois.
Light pollution is the result of wasted energy.Bright light that shines into the sky is not being used to provide light where it is needed on Earth.Poorly designed lighting causes a great deal of light pollution.Lights that are brighter than necessary also cause light pollution.
Recently,two Italian (8)astronomers and an American (9)environmental scientist created a world map of the night sky.The map shows that North America,Western Europe and Japan have the greatest amount of light pollution.
Most people in America are surprised to find out that they are able to see our own (10)galaxy,The (11)Milky Way,with their own eyes.But about three-fourths of Americans cannot see the Milky Way because of man-made light.
3
Pollution
As the world is getting more densely populated,pollution presents a severe problem.More people make more waste.All this waste is polluting our surroundings.
Pollution has a bad influence on our life.The air is pollnted by the smoke and fog coming out of the factory chimneys.Plants die for want of fresh air.The river is polluted and the fish are unfit to live.There is noise pollution made by cars and factories,etc,which hurts the ear.
It is high time we did something about pollution.I suggest more trees be planted to keep the air fresh.We should purify the water and make use of the wastes and turn harm into good.
By cur common efforts,we will make a clean and purified environment for life and work.
4
Write a passage with the words and phrases given:
the problem of pollution,cause,artificial substances,release,waste products,industrial production,consumption of goods,bring it under control,agriculture,chemical substancea.
Environmental Pollution
I read a piece of news recently.It says that in Japan marly businessmen ave selling fresh air to customers.and now it is becoming more and more popular.Why?--Fresh air is getting less and less in Japan,and so is it in the U.S.A.
In fact,environmental pollution is a very serious problem the whole world is facing.
it is mainly caused by the waste products released from artificial substances,industrial
production and increased consumption of goods.Bedsides,the use of chemical substances
in agriculture also causes environmental pollution.Look at the sky,you can see that dense smoke is being released from the high and big chimneys; those dirty and poisonous substances are flowing into the rivers that we use for drinking water and millions of tons of waste products are heaping around us.
How to change this condition?More and more countries are trying to work out some effective means to bring it under control,but no great success has been made.
5
health,surrounded by,smog,anything but,gases,impurities,absorb,poisonous,try hard,blacked out
We all know that clean air is important to good health.Wherever you go and whatever you do,you are always surrounded by a sea of gases that we call air.If there are impurities in the air,they may be absorbed by our bodies and make us ill.We need clean air,but unfortunately,air pollution is globally present,especially in cities.
Many large cities are anything but pollution-free.Our cities have many factories,which we need to make food,clothing and other things.Every year these factories pour millions upon millions of tons of smog into air.Power plants and houses that burn coal add greatly to air pollution.Besides,there are more cars in cities now.Once out on the streets,they will take in fresh air and replace it with poisonous gases.
Our country is trying hard to prevent and control air pollution.As long as every citizen also realizes its importance and makes join efforts,the day will come soon when people will take in only clean air.Then,the sunlight will no longer be blackened out by smoke and soot.
6
Pollution is harmful to human beings.Polluted water causes many kinds of diseases such as diarrhea,enteritis,etc.And sometimes these diseases even take man鈥檚 life.Dirty air or air-borne garbage causes stinging eyes and running nose.Pollutants are destructive.They cause runs in nylon stockings and crack rubber tires and they eat away at stone and rust iron.
Measures have been taken to control pollution.In recent years,legislative steps have been introduced to control pollution.Rivers are being cleaned.Air is purified,and pollutants are being trapped before they are poured out of chimneys.
However,pollution problems have not been completely solved.Pesticides are widely used almost everywhere.They pollute soil,water and food.They have the power to make our streams fishless and our gardens and woodlands silent and birdless.Some factories are still using air as a dumping place for wastes.Some lakes are still dirty.Quite a few chimneys are still pouring smoke into air and noise pollution remains serious.

不是成语,大概意思就是仕途不顺,没有实现自己的抱负,如没当上省长什么的.如停杯投箸不能食,拔剑四顾心茫然.还有月落乌啼霜满天,江枫渔火对愁眠.

你这样应该可以过得

一般出议论文较多,再过来就是记叙文了,散文和小说次之,但是还要看你是哪个城市的,每个城市的出卷习惯都不一样.

100g就2两,就一小碗米饭.300ML有5杯

需要盖,2小时,也可以参照粮食的灰化标准

xhnqbnhnzyixf..sdqsbd
喜欢你却不能和你在一起幸福舐犊情深笨蛋

国标6平方线跟45A以上的断路器

我爱读书,我爱收获
法国思想家孟德斯鸠说：“喜欢读书,就等于把生活中寂寞的辰光换成巨大享受的时刻.”莎士比亚说：“书籍是全世界的营养品,生活里没有书籍,就好像没有阳光；智慧里没有书籍,就好像鸟儿没有翅膀.”
让我们走进书本里去,或者做一个梦,或者给思想洗一个澡,或者去寻求无价的人类的聪明才智.读书中,我们提高；读书中,我们快乐；读书中,我们收获.
教师要有很强的专业素养,丰富的文化知识,课堂上才会活跃,才会生动,生命也会因此而更加精彩.教师不仅要给学生一桶水,而且是一桶鲜活的水,只有这样,我们的课堂才能真正成为教师成长的舞台.作为一名教师我们要不断的充电,丰富自己的知识内涵,不断的提升自己的专业技能,读书是最有效的途径.
记得有这样一句话：“一小步一小步的走可以走几千里,一小滴一小滴水,可以把石头滴穿,一条条小河可以汇成无边的大海.”读书就是在积累,今天的积累就是明天的收获.”
总喜欢翻看一篇篇隽永的小品,芳香；天然；浓郁；悠长.总喜欢阅读一本本有趣的故事书,神奇；新鲜；美丽；动人.总喜欢品读一则则教育专家的随笔,汲取为师的经验.总喜欢坐在办公桌前享受书的馨香.那种感觉,就像走进了上帝的伊甸园,在大胆地摘食了智慧的果子的同时,知晓了一切.
俗话说,人有三宝精气神,腹有诗书气自华.为了获取知识,我们要读书；为了提高修养,我们要读书；为了改变命运,我们还要读书.记得有位教育名师说过：你的学生能走多远,关键在于教师能引多远.是的,要培养学生喜欢读书,教师首先应该是个爱读书的人,而且还是学生读书的引领者.我喜欢读书,特别是和同学们一块儿读书的感觉真好.每天中午,因为有了教师安逸读书的身影,才有孩子们安静无语的沉默.看着一股股清泉缓缓流入孩子们的心田,我的心醉了.是呀,成长不可无书,成功不能无书.
读书——生命飞翔的羽翼.有了它,我们可以腾空而起,飞向蓝天,飞向成功,飞得更高更远.有了它,我们可以开启幸福与快乐的大门.
我读书,我收获.收获知识,收获力量,收获智慧.我读书,我收获.收获快乐,收获勇气,收获成功.

我们期末考试的阅读

My summer holiday
On the fifth of July,I ,together with my aunt got on a train to Beijing.As soon as we arrived in Beijing,we took a taxi to Tsinghua Universtiy and Beijing University.They are great.During the followiing five days,we went to some other places of interest,such as the Great Wall,the Palace Museum and so on.The trip was tiring but also very interesting.

嗯,老大,本人是学英语的硕士,过了专业8级,文章经常写的.如需要l写这个,加下l本人.

1、取曝气池混合液100mL活性污泥（样品）,用烘干后称重的滤纸过滤,将滤后悬浮物和滤纸一并于103℃-105℃烘干后恒重称量,依据下面的例子就可以计算出MLSS（混合液污泥浓度）.
样品编号 A池
取样量Vs(mL) 100 .0
器皿（蒸发皿或培养皿）编号 C1#
器皿+滤纸103℃-105℃烘干后恒重W1(g) 31.1092
器皿+滤纸恒重（103℃-105℃烘干后）+样品重量W2(g) 33.9772
103℃-105℃烘干后器皿+滤纸+样品烘干恒量W3(g) 31.4680
干污泥重量△W(g) 0.3588
MLSS(g/L) 3.588
计算公式：Ws=W2-W1 MLSS=△W*1000/Vs(g/L)

参加英语培训会很快提高的

抓着侧面边沿边晃边拉,拉不开不是压力的原因而是摩擦力的原因,只要在纸张间有空隙,没摩擦力就很容易分开了

全是正方形,俯视：右下角用虚线表示45°的直角三角形
正视：右上角用虚线表示45°的直角三角形
左视：正方形
右视：左上角用虚线表示45°的直角三角形

设走过t秒,做垂线AD交BC于D,做垂线PE交BC于E
AD=12倍根号3,BP=24-4t,BQ=16-2t,PE=（12-2t）*根号3
（12-2t）*根号3*（16-2t）/2=16*12倍根号3/2
解得t=2或12

语文是日积月累的学科,不是短时间可以提上来的,除非你做好长期奋战的准备,真正喜欢上语言于文字,踏踏实实地学,不然,成绩稳不了.
我的语文以前一向是我的优势,主要就是我喜欢它,所以哪怕我看上去没有学,还是比别人好,主要是我自己有在积累这些基本的东西.多看点书吧,就多些范例作为作文的例子,文笔也会慢慢的受影响,具有自己的风格,对你的作文分有提高作用,对你以后也有好处.其实看书也有助于于你的积累,提高你的见识的.
分析了一下你的语文成绩,基础分没有拿全吧?字音字词还是成语病句?这些基础的,全靠死背了,别人帮不了你.这些基础的东西,你们老师应该都有讲,也许还有归纳吧?平时多看看吧,不行就只有背了,基础分尽量多拿点,整体的分才能上去.
从我自己的初中经验来说的话,文言文不难,背好了书上的,基本就是分了,但是这些初中的文言文,绝对对你高中有很大的影响,初中的那些字词什么的,一定要背啊,到了高中,对你分析文言文绝对有利!
阅读来说吧,说不能短时间提高吧,其实也是可以提高的.虽然阅读考察的的是你的理解能力和思辨能力,其实你多练练,你就会有感觉,一个类型的阅读,基本答来答去就是那么几句话,主要是你愿不愿意去多练练,从中找经验了.（我小学初中的时候,至少练了十本阅读的书,高中三年基本就没听过课,照样比很多人分都高,真心啊~）
所以啊~真的要下决心去学,你才能真正踩在高分段上,不掉下来.其实当你真正上手了这些东西,什么都学着快了,就是最早的一段时间特别辛苦,如果坚持下来就好了.当你真正学得出色了,就用一次次的分数,把别人都压在下面,那时候,特有成就感!
好孩子,相信学姐的话,好成绩是没有捷径的.所以,加油!

Long long age,some boys played ball games in the garden,but the ball fell into a big jar,which make a boy fell into the big jar;nevertheless,a boy who called Si Maguang broke the jar with stones.

我家附近的变化太大,以至于我出门逛一圈就找不着回家的路...

1、学校体育室要购买50个排球,现有甲乙两个商场可以选择,两个商场的排球标价都是28元,但优惠的方法不同,甲商场每买10个排球免费赠送2个,不足10个不赠送.乙商场每个排球优惠4元,为了节省费用,学校应该到那个商店购买?请通过计算来说明.
2、小明用的练习本可在甲、乙两个商店内买到,已知两个商店的标价都是每个练习本1元,但甲商店的优惠条件是：购买10本以上,从第11本开始按标价的70%卖；乙商店的优惠条件是：从第1本开始就按标价的85%卖．（1）设小明买x（x大于10）个练习本,分别求出他在甲乙两店的消费（用x的代数式表示） （2）小明要买20个练习本,到哪个店购买比较省钱?
答案
1、若到甲商场买,12个球的价格=10个球的价格=28×10=280（元）,50=12×4+2
所以50个球的总价=280×4+28×2=1120+56=1176（元）
乙商场：每个球的实际价格为28-4=24元,共需买50个球,
所以总价=24×50=1200（元）>1176（元）
所以,去甲商场买更划算.
2、(1)在甲的消费
M=10+0.7*（x-10）=0.7x+3
在乙的消费：
N=0.85x
(2)
当x=20时,
M=0.7*20+3=17
N=0.85*20=17
M=N
此时刚好,在两个店买用的钱一样多

模电 是 基础,数电 是重点.

那要从最看是出现真正意义上的人的时候说起,自觉的能动性是人类区别于动物的最重要的特点
所以真正进化基本完毕是在距今约170万年-150万年前至二、三十万年前,若你非要求砍树为使用木材的标志,那么现在能考证的木质结构建筑是在公元491年,旦扩大到会使用木质工具,200万年前就已经可以了,砍小树就是100万年前左右,大树基本上是做建筑,因为那时不需要也做不出需要砍大树来做工具,所以,我以为你用砍这个词是指很粗的大树,要不是的话,个人认为可以以会搭建简单木帐篷为参考点,那么基本上比北京元人要早一些,大概在100多万年左右,因为现在也不确定北京猿人到底出现的有多靠前

早晨,森林不慌不忙地揭开身上的轻纱,让鸟儿在自己的肩头欢唱,让太阳抚摸自己的臂膀；
中午,森林不遗余力地揭开所有的手掌,为脚下的小草遮蔽日头,为歇脚者输送一阵阵凉爽；
晚上,森林百般疼爱地拉上庞大的披风,让小鸟在怀中安静地栖息,让小虫能放胆地奏鸣.

你不再知道我写过什么了.
nicht mehr是不再的意思.这个最好翻译进去

这句话的意思不难懂,只是理解到什么程度吧,接受的教育和自身的经历不一样,理解的程度也不一样.个人认为更不好理解的应该是“时间不能增添一个人的生命”这句话,增添二字,可以理解为产生一个新的生命或是增长一个人的寿命,这不可能由人为的去控制,你不知道下一个是谁来到了这个世界,你也不清楚,他什么时候会离开.珍惜时光,就是在自己的有生之年,和相爱的、和亲人朋友一起愉快地度过,不虚度它,那么生命就是有价值的；不在于你非得做多少贡献,也不在于你取得什么样的成就,只是你和你生命中重要的人一起分享的,而你也很乐于此~

“落木千山天远大,澄江一道月分明.”
大意：
远望无数秋山,所有山上的树叶都已落尽了,浩瀚的天空此时显得更加辽远阔大,一道澄净如玉的赣江水在快阁亭下淙淙流过,一弯新月,映照在江水中,显得更加清朗澄澈.
赏析：
“落木千山天远大,澄江一道月分明.”写景阔远清旷,自古推为名句.
杜甫有“无边落木萧萧下,不尽长江滚滚来.”（《登高》）李白有“水寒夕波意,木落秋山空.”（《秋夜宿龙门香山寺》）柳宗元有“木落寒山尽,江空秋月高.”（《游南亭夜还叙志》）等诗句.
本句可与前人诗句相映生辉.另外,全诗洗练清明,意脉贯通,节奏如行云流水,一扫律诗的严整和拘谨,鲜明地体现了诗人的洒脱襟怀和审美趣味.

鸡蛋就是50克左右.

1900-26x45=1900-1170=730米
答 距离书店730米

electronegativity是指单独两个原子间的作用,charge density是有关离子和离子或者离子和原子,我见过一篇文章其中用到intensity这个词,一般是用作光的强度,但是在特定情况却指吸引强度,不知你说的哪一个

这要看你用多大的线.绕100

大约800公斤,因为大米的容重是800KG/立方米.一般说粳米比籼米要重些,质量好的大米略重些,但上下相差不大.

就是衣鱼（silverfish,firebrats）吧
衣鱼（Lepisma saccharina）是衣鱼科昆虫的通称,一类较原始的无翅小型昆虫,全世界约有100多种.
俗称
蠹、蠹鱼、白鱼、壁鱼、书虫.
分类地位
节肢动物门,昆虫纲,缨尾目,衣鱼科
外部形态
身体细长而扁平,上有银灰色细鳞,长约4～20mm.触角呈长丝状,腹部末端有2条等长的尾须和1条较长的中尾须,咀嚼式口器.
说白了就是啮食衣物的小虫子,最有可能的就是敏栉衣鱼,你可以看这个图来确认一下：http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&word=%D2%C2%D3%E3&in=2&cl=2&cm=1&sc=0&lm=-1&pn=1&rn=1
要治用樟脑就成了,还要记得晾衣物.

A：Do you know the most interesting festival in America?
B:Um...Let me see...I don't know.Could you tell me?
A:I think it is Christmas Day.
B:Why do you think so?
A:Because I can see Christmas Father on that day.And I can get a gift nfrom him if I hang a stocking on my bed.Isn't it interesting?
B:Oh,yes ,yes.It is interesting.But you know the gift is given by their parents .
A:Yes,I know.But their parents are so kind.They do it on that day every year.
B:Yes,maybe they think it is their jobs and maybe they like doing it.
A:Maybe they think so.

跟做工的师傅商量了,他们有经验的!

U.S.Route 30 =U.S.Highway 30 30号高速公路
旧的30号高速

有时候排斥就是一种接纳 接纳暗含排斥
是可以互相转化的
主要是要有辩证的思维

GRE作文分两种,一种是是非题,也就是ISSUE,这道题目在考场上可以二选一.另一种是找逻辑漏洞的题,也就是Argument,不能选择.一般六级的词汇量足够写GRE作文了,因为它考的是思想和逻辑.对作文字数官方没有要求,一般来说issue部分的字数大约500-700,argument大约是300-500.issue和argument满分都是6分,最后分值取两者平均数.

珍惜 可以写友谊 可以写对某事物的感情 思想健康写爱情也行
我要说声谢谢你 可以写对父母 对老师 或是对一直激励自己的物品 书 都行
这两个还算比较好写的 切记 表达真情实感

因为那个男子看到的是别人的寿命,也就是说他看到所有人的寿命都停在目前的岁数,而那位50岁的女的还有5分钟就51岁了,但男子看到她的寿命是50岁,所以她会在5分钟内死,而离下一个站还有15分钟,所以5分钟内全车人死于车祸

那男人有能看透别人死亡日期的能力,他上了车之后就一个一个的问乘客
他问出口的岁数自然石他所看到的,所以他看到那位女士的死亡年龄是五十岁
但是那位女士还有五分钟就满51岁了,也就是无分钟后就不再是五十岁
而他看到的确实五十岁,所以他们的死期是在女士五十一岁之前
也就是不满五分钟

南美洲与非洲的轮廓相似,也与印度半岛的轮廓相似,所以印第安人与印度人的英文是一样的（indian）.轮廓在地图上可以看到.

得之坦然：获得东西要正大光明,不愧对他人,不损人利己.
失之淡然：物有得必有失,不要为失去东西耿耿于怀.
以上两者又可称为“不可患得患失”,对待得失要有平常心,要减少对外物太过执着的欲望.
争其必然：是指我有必然之理才可以去坚持,也就是说可以使我争论坚持的唯有真理.不要去强辩,不要无理争三分.为人应堂堂正正,有理则维护,无理则承认,虚心听取道理.
顺其自然：是说万物自有其理,世事不可强求,很多时候谋事在人,而成事在天.只要自己尽力而为,没有什么可愧对的.对于很多经历与结果,要用达观豁然的心情去面对,时时刻刻抱有一颗平常心.
其实这四句都是在讲人应具备内心修养,面对纷繁复杂的外部世界如何更好的调整自身.
送你一首诗,意思差不多：
春有百花秋有月,夏有凉风冬有雪.若无闲事挂心头,便是人间好时节.

《周易》应该无此概念,男人逢八,女人逢七也不会是论寿命的,一般女的比男的长,况且旧社会男尊女卑,六十四卦中论女的也多指不好,比如“姤”、“归妹”等,故此《周易》对女的也无特别专论. 或者另有民间说法,但这与《周易》无尤.

家教中心考的话,肯定是要考真才实学啦.教初中就考初中的语法题,教高中就考高中的语法题.其它没什么好考的,最多看一下你读得音对不对.总之是不能请老师误人子弟、砸自己的招牌的.

不是天狼星,是木星!
木星7月大冲,那时是在天空上方偏南的地方,很亮!后来慢慢往西移动,你看到的就是位于西南方的木星.现在已经看不见了,又上来一颗是金星,金星现在是最佳观察时间,这几日东大距,再过三个月左右就只能在早晨看金星了.

1立方米是长*宽*高(米)所以把你的CM先转换为米就是 0.3*0.255*0.41=0.031365(立方米)