Animals——Our Friends

We are not alone in the world. We human beings could not survive without all the plants and animals around us. Animals are our friends. We must help them and protect them. Unfortunately, some people don't realize the importance of protecting animals. They cut down many trees for making paper, furniture and so on. More and more trees are cut down and fewer and fewer areas are left for wild animals, so they are endangered. Some people not only cut down too many trees, but also kill animals. T…     

金城——兰州

兰州,始建于公元前86年.据记载,因初次在这里筑城时挖出金子,故取名金城,还有一种说法是依据"金城汤池"的典故,喻其坚固.秦始皇统一中国后,分天下为三十六郡,兰州一带属陇西郡地.     

南美洲——哥伦比亚

Official Name: Republic of Colombia Land Area: 1,138,910 sq. km. Population: 39,685,655 Capital: BogotaMajor Cities: Bogota, Cartagena, Barranquilla, Puerto Carreno     

大观园——心灵氧吧

自从《红楼梦》诞生之日起,苦心孤诣研究红楼者就不胜枚举,其间大家层出不穷.曹氏文章引领时代潮流,芸芸众生穷其一生在探索作者的高妙境界而不得.红楼主人公皆聚天地之灵慧,但其命运却如星辰般陨落,可哭可叹.不论皇家贵胄抑或官宦之家,其萧条败落有如秋风扫落叶.纵然底层一些丫鬟其清秀灵慧者亦难免命运的凋零.作者在心灵救赎的层面完成了一次灵魂的洗礼.     

零——始于何时何地

零这个数对于我们数的系统来说是必不可少的.但是,当开始创造数的系统时,并没有自动包含零.事实上,古埃及人的数的系统就没有零.公元前1700年左右,六十进制数的位置系统发展起来.古巴比伦人用它跟他     

数学王子——高斯

在德国著名的哥廷根大学校园内,矗立着一个以正十七边形为台座的数学家塑像,他便是被公认为十八、九世纪之交最伟大的数学家、享有“数学王子”之誉的德国著名的数学家高斯.高斯(C.F.Gauss.1777~1855)出生于德国不伦瑞克一个世代都是劳动者的家庭.父亲当过花匠、瓦工和运河看管     

柏林——历史的见证

Berlin is the capital of Germany.It is famousfor its beautiful scenes and complex history.In1948,Berlin was divided into2two parts:East Berlin and West Berlin.The Communist3government of the east built100miles BerlinWall in1961.On October3,1990,the east andthe west got unified4again.The Berlin Wall waspulled down.A few sections of the wall were leftto remind the28-year division of the city.There are many museums in Berlin.TheCheckpoint Charlie Museum is one of the mostvisited museums.…     

My Hometown——Wuhan

Wuhan is my hometown.it's the largest city in central china.It has a population of     

普吉——泰国的明珠

Phuket is Thailand's largest island. It is famous for its amazing beaches. The sea in Phuket is beautiful. The color of the sea is not only blue and green, but also yellow and white. Under the sea, you can find some interesting things like seahorses, starfish, seaweed and shells.     

巴塞罗那——地中海的明珠

Spain is always related with bold and unrestrained character.Barcelona,a beautifuI city of Spain,is the most famous city inSpain. Compared with Madrid,the capital of Spain,Barcelona hasa much longer history.In the 8th century,Moors conquered Spain.Barcelona acted as the focal point for the exchange of scholarand scientific knowledge between the European and Muslimworld.Before the 16th century,it was the center of Spain.In1493,the Monarch received Columbus in the Royal Palace in     

阅读—解决—提升

高中生一般都觉得化学很难学,原因在哪呢?首先是由于化学学内容丰富,概念、规律多且叙述简洁严谨、逻辑性强;而且高中化学概念、规律往往不是直观形象.针对这样的情形,我们必须要对自己的学生有一个充分的了解和认识,把握他们的特点(阅读获取知识的能力、对知识的分析、记忆能力等).作为学生,一般来说其阅读能力差,没有养成认真阅读、思考、质疑、探究、归纳小结、合作学习、及时复习等良好习惯.在此,老师在课堂上必须做出一些改变.一、自行阅读,解决问题1.特点:自行阅读是一种常见的回归课本的方法,上课时告诉学生具体的阅读内容(比如:以神舟六号的成功发射与接收为背景设计问题),然后就让学生自己阅读,观看一系列投影,视频.2.评测:为了检测学生对这一部分自行阅读的效果,笔者根据教材内容罗列出几个问题对学生进行了检测.     

SAN FRANCISCO——漫步旧金山

"San Francisco, open your Golden Gate", sang the girl in the theatre. She never finished her song. The date was 18th April, 1906. The earth shook and the roof suddenly divided, buildings crashed to the ground and people rushed out into the streets. The dreadful earthquake destroyed the city that had grown up when men discovered gold in the deserts of California. But today the streets of San Francisco stretch over more than forty steep hills, rising like huge cliffs above the blue waters of the Pacific Ocean.     

GPS——全球定位系统

你知道你所处的位置吗? 你也许会不屑地看一眼附近的路牌,然后读出上面的地址. 可是,如果你所在的地方是旷野、是大海、是荒漠、是森林呢?或者.你仅仅是在一处比较偏僻的乡村迷了路,你会奢望附近有路牌吗?     

阿尔萨斯——洛林问题始末

阿尔萨斯和洛林(Alsace—Lorraine)是法国的两个历史地区名称.两地地处欧洲大陆中心地带,地理位置重要,同时资源蕴藏丰富.在历史上,围绕着这两个地区的归属问题,法德两国有不少争端.本文旨在将阿尔萨斯—洛林问题的来龙去脉梳理清楚.公元前1世纪时,古罗马人建立了罗马帝国.罗马帝国四处扩张,凯撒亲任高卢总督,他利用这里仍处于原始公社阶段的不同部族之间的互相仇视,分化瓦解,征服了高卢的广大地区.公元1世纪时,阿尔萨斯和洛林被罗马人占领.罗马军队还越过了莱茵河,势力直达易北河.并于公元5年在这里设立日尔曼行省.公元9年,日耳曼人消灭了罗马驻军,罗马帝国才将莱茵     

Our Country——the PRC

The PR C is the short form ofthe People s R epublic ofC hina.It is inEast A sia and it lies by the Pacific O cean. It has m any neighbouringcountries such as R ussia,K orea,India and so on.The PR C is the largestcountry in population and one of the largest countries in area in theworld. Itis a great country with a long history and it is a big fam ily withfifty-six nationalities. The capital of the PR C is B eijing. Itw illhold the2008O lym pic G am es.There re a lot of fam ous cities…     

威尼斯——奇异的城市

Venice,on the North East coast of Italy,is one ofthe most peculiar.picturesque cities in the world.It isnot just an island,but consists of one hundred and sev-enteen islands.Therefore,they require about four hun-dred bridges to join them together,There are no auto-mobiles or horses in Venice as there are no roads.In-stead,there are as many as one hundred and fifty wa-terways or canals there.     

My Teacher——My Mother

Nowadays I study harder than ever before.All that I do is to thank my teacher.In my eyes Mrs Zhang is not only my teacher but also my mother.     

能力小题训练4——三角函数

一、选择题(每小题5分,共60分)1.log2sin1π2 log2cos1π2的值为().A.4B.-4C.2D.-22.函数f(x)=tanωx(ω>0)的图象的相邻两支截直线y=π4所得线段长为4π,则f4π的值是().A.0B.1C.-1D.4π3.将函数y=sin2x-4π的图象按向量a平移后得到函数y=sin2x的图象,则向量a可以是().A.4π,0     

A Patriot Poet——DU FU

1.DuFu(712-770A.D.)wasoneofthegreatestpoetsofChina.HelivedatatimewhentheTangDynastywasonthedecline.Outofwarmloveforhiscountryandpeople,DuFuwrotemanypoemswhichreflectedandcriticizedhisage.杜甫(公元712-770年)是我国最伟大的诗人之一。他生活在唐朝处于衰落的时期。他出于对自己国家和人民的热爱,写了很多反映和批评他那个时代的诗篇。2.Intheyear755,AnLushan,aTartarwarlord,roseinrevolt.HisarmysoonreachedLuoyangandChangan,thusshakingtheruleoftheTangDynasty.DuFuwasforcedtofleeandheledawander-inglifearo…     

Dog——A Friend of Man

Dogs are friends of man. They work for us. They hunt with us. They also play with us.But a long time ago,in all over the world,dogs were wild.Dogs can