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重庆妇科医院做孕检多少钱乐视卫生

2017年10月21日 14:33:50|来源:国际在线|编辑:周门户
栏目简介:;Shanghai Live; focuses on big events in the city and major issues around the world, and presents them in a practical and audience-friendly manner to meet the ever-evolving needs of Shanghais English-speaking viewers,both local and expatriate.《直播上海英语电台》集中报道城市大事件以及全球热点话题,并以观众喜闻乐见的方式呈现给大家,从而满足上海本地以及上海海外人士的英语需求。201505/373274栏目简介:《趣味青春英语视频》是外语网络电台的精品节目,通过大讲堂的网络课堂形式,能够帮助英语学习者积累一些英语背景知识,并通过互动的教学形式,帮助有效记忆英语知识。本栏目是学习趣味青春英语的好材料。201603/419835

For the teachers and the pupils, this is a voyage into the unknown.对师生来说,这都是次未知的旅程As a head teacher, doing this project is a great risk.作为校长,实行这种计划有很大风险They are going to,他们一定I would imagine, be a bit more lively than the Chinese students.我能想象,会比中国学生好动一些Whether the teachers see that as a direct challenge to their authority...老师会不会将此视为是对师威的挑战I think that will be a real flashpoint, potentially.我认为这很可能就是最重要的导火线I think the teachers expect us to all be really like, like the Army, basically.我觉得老师是希望我们要像军队一样In China arent the children, like, really, really good and well-behaved?在中国,学生们难道不都是非常非常优秀而且好乖的吗Yeah, and like... And were not.是啊,就是...但我们不是Yeah. Itll be, like, really new for them.这肯定,对老师来说是个新体验Were probably going to be a bit more of a loud bunch, you know,比起他们在中国的学生than they would teach over in China,我们可能会更吵闹些so theyve probably got their work cut out for them.所以他们的工作可能会被不停打断The first shock for British pupils is the size of the class.英国学生第一件震惊之处,就是班级人数In China, its common to have 50 kids in one room.在中国,一间教室五十名学生很常见In Britain, the maximum is usually 30.在英国,一般最多也就三十个人Right, listen. Listen. 好了,听我讲,听着Quiet.安静Discipline will be crucial, and Miss Yang wants to lay down some ground rules.纪律很重要,杨老师想先制定几条基本规范Can you turn around, please?请你转过来好吗Turn around, thank you.转过来,谢谢In China, the teachers authority is absolute.在中国,老师拥有绝对的权威It is a big class and its a big room.教室很大,里面人很多I, as one teacher in this room,我,作为老师I cannot do the practicals and discipline you in the same time.没法一边讲课一边管纪律If I see any of you misbehaving, I will separate you immediately.让我看到谁违反纪律,我就让他出去And I dont have a problem with it.这对我来说不是问题The discipline is really important - without discipline, you dont learn well.纪律很重要。没有纪律,你们就学不好Thats a matter of fact.这是真的Sometimes it annoys other students as well.有时破坏纪律也会影响其他同学Its going to be a long day and its only the first day.今天会是漫长的一天,而且这才是第一天Are you still talking when Im talking?我说话的时候,你们讲什么讲Sorry, Miss.对不起,老师Can you turn around, please?请你转过来好吗In China, as long as you are a teacher you receive that respect automatically,在中国,只要是老师自然就会受到尊重and students do as you told.学生就会听老师的话We believe in effort, 我们认为学习需要努力so if you make effort, you will achieve.只要努力,你就能成功201512/417776

Hi, Im Jessica嗨,我是Jessicaand Im gonna be talking about a chemical demonstration today that今天我要讲的化学演示I like to call bringin home the bacon叫作;养家糊口的培根;Now before we get cookin, lets take a look at the chemists best friend在开始烹饪之前,我们先来看看化学家的老朋友This is the periodic table元素周期表It was created in 1869 by the Russian chemist Dmitry Mendeleev它是在1869年由俄国化学家德米特里·门捷列夫制作back when only 65 elements were known 当时他制作的表中只有65个元素Different elements on the periodic table 周期表中的不同元素require different numbers of electrons to be ;happy;需要不同数目的电子才能;开心;Electrons live in the shell surrounding atoms电子位于原子核周围的电子层中and when an atoms outermost shell is filled to capacity当原子最外层填满电子时the atom is ;happy; 原子就会;开心;Now hydrogen over here这里的氢原子has one electron in its outer shell在最外层有一个电子and needs just one more to fill it 它还需要一个才能填满Carbon has four electrons in its outer shell 碳最外层有四个电子and needs four more, a total of eight electrons to fill it 还需要四个才能填满,总共要八个电子Now on the left and middle of the table, we have the medals周期表的左侧和中间是金属元素To get to eight electrons in their outer shell 要在最外层得到八个电子the medals lose electrons 金属需要失去电子And on the right side of the table, we have nonmetals而在周期表右侧的则是非金属元素To get eight electrons, these elements gain electrons要得到八个电子,非金属元素需要获得电子And hydrogen is the only nonmetal thats on the left hand side of the periodic table氢是唯一位于周期表左侧的的非金属元素Now one way atoms get to eight electrons in their outer shell 原子在最外层得到八个电子is through chemical bonds需要通过化学键A bond is the sharing of two electrons between two atoms化学键是两个原子之间两个电子的共用So carbon likes to have four bonds 碳喜欢有四个键and hydrogen likes to have one而氢喜欢有一个键Knowing about where the electrons are and how they participate in bonding了解电子在哪,以及电子如何参与到成键中is central to many important things in the real world对于理解现实世界中的各种现象非常重要For example, unsaturated fats have a double bond例如不饱和脂肪具有一条双键lots of electron 很多电子and that gives them special reactivity这让其具有特殊的反应活性which can lead to the spoiling of food when the bonds react with oxygen当双键同氧气反应时,食物就会变质201501/355270

They may move too slowly for the human eye to appreciate,它们可能速度太慢以致人的肉眼难以分辨but as a speeded-up film of the Argentiere glacier shows,如果用加速电影那么阿根蒂尔冰川显示ice is very much on the move.冰一直在频繁运动Instruments underneath the Argentere阿根蒂尔下方的工具reveal that its travelling at about a foot and a half a day.揭示了它每天移动半米Here in Europe, ice is confined to high mountain ranges.这是欧洲,冰都覆盖在高山上But in the polar regions,但是在极地its cold enough for ice to cover vast areas of land.气候足够冷所以冰覆盖了大部分土地In Antarctica, a single ice sheet南极洲,一个单独的大冰原buries a continent bigger than the ed States.覆盖了一片比美国还大的土地The ice sheet can reach a staggering two and a half miles thick冰原有惊人的四千米厚so only the peaks of high mountains, called nunataks, can poke through.所以只有被称为冰源石山的高山的山顶,能刺穿冰层This is a world where ice doesnt so much carve out a landscape,这是个冰没怎么雕刻的景观it is the landscape.它自己就是景观This ice world is so huge that some of its greatest wonders can only be seen from space.冰的世界相当大 有些伟大的景色只有在太空中才能看到201510/402159

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