二次曲线的直径

美国学生世界地理教材第15期:世界的内部(3)

So we know that the distance must be about eight thousand miles, as twenty-five is a little more than three times eight. 那么我们就知道从世界一面到另一面的距离肯定是大约8000英里，因为25是8的三倍多一点。 That is no

发表于:2018-12-04 / 阅读(114) / 评论(0)

美国学生世界地理教材

有声英文阅读-月球

The Moon 月球 We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation

发表于:2018-12-05 / 阅读(78) / 评论(0)

有声英文阅读

双语有声阅读:The Moon 月球

The Moon We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation shows that the moon is not standing till. Its distance fr

发表于:2018-12-07 / 阅读(43) / 评论(0)

双语有声阅读

与美国小学生一起学英文第5册第26期:25分硬币

Quarter 25分硬币 A quarter is an American or Canadian coin. quarter是指美国或加拿大的一种硬币。 How much is a quarter? 这种硬币值多少钱呢？ A quarter is equal to 25 cents. 它等价于25分。 It is worth one fourth of a do

发表于:2018-12-13 / 阅读(58) / 评论(0)

与美国小学生一起学英文第5册

英语PK台第723期:词根词缀背单词(11)

一个英语单词可分为三部分：前缀（prefix）词根（root）后缀（suffix）。位于词根前面的部分就是前缀。前缀，可以改变单词的意思。 di- 表示使分开，离开 distinguish = di + sting（刺）+ uish 将刺挑

发表于:2018-12-19 / 阅读(47) / 评论(0)

英语PK台

【一起听英语】爬树（2）

围绕树木展开的话题.... Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme, Im joined by Kate. OK Kate, well last week we were talking about tree climbing,

发表于:2018-12-27 / 阅读(51) / 评论(0)

一起听英语

赖世雄英语新闻听力通第88期:美国年均八百个龙卷风

An average of 800 tornados occur every year in the USA. 美国每年平均有八百个龙卷风。 They can generate wind speeds faster than 250 mph. 龙卷风的风速可以超过时速二百五十英里。 At times, they devastate whole communities

发表于:2018-12-28 / 阅读(66) / 评论(0)

赖世雄英语新闻听力通

【突破英文词汇】circum -- round 周围

1. circumference /səˈkʌmfərəns/ -- distance around a circle or rounded body; perimeter The circumference of a circle equals times the diameter. 圆周长等于与直径的乘积。 2. circumlocution /ˌsɜ:kəmləʊˈkju:ʃən/ -- roundabout way

发表于:2018-12-30 / 阅读(87) / 评论(0)

突破英文词汇

80天攻克雅思核心词汇-26

algebra n. 代数 algorithm n. 运算法则 circumference n. 周长 curve n. 曲线 database n. 数据库 decimal adj/n. 十进制 diameter n. 直径 dimension n. 维 equation n. 方程式 facet vt. 刻画平面 geometry n. 几何学 graphic adj. 生动

发表于:2018-12-30 / 阅读(100) / 评论(0)

80天攻克雅思核心词汇

CNN 2010-10-12

Hi, I'm Carl Azuz. Welcome to this Columbus Day edition of CNN Student News! We'll be talking more about Columbus Day in just a couple minutes. But first, we're reporting on a breakthrough in Chile. And we mean that literally. A hole big enough to re

发表于:2019-01-08 / 阅读(78) / 评论(0)

CNN2010年(十)月

HEALTH REPORT - Breast Cancer Operation Studies

HEALTH REPORT -October 30, 2002: Breast Cancer Operation Studies By Nancy Steinbach This is the VOA Special English Health Report. Two new long-term studies have compared two operations for early brea

发表于:2019-01-09 / 阅读(69) / 评论(0)

健康与环境

与美国小学生一起学英文第9册第25期:直径

Diameter 直径 A diameter is a straight line inside a circle. 直径是圆内的直线。 Can any straight line in a circle be a diameter? 圆内的任何直线都是直径吗？ No, its two ends must meet at two different points on the circle. 不是

发表于:2019-01-10 / 阅读(53) / 评论(0)

与美国小学生一起学英文第9册

与美国小学生一起学英文第5册第1期:沙子

Sand 沙子 If you look around you, you can find sand very easily. 你若环顾四周，就很容易发现沙子。 Sand comes from rocks. 沙子源自岩石。 Each grain of sand is less than 2 millimeters in diameter. 每粒沙子的直径小于两毫

发表于:2019-01-10 / 阅读(80) / 评论(0)

与美国小学生一起学英文第5册

职业技术英语口语第24期:工具和设备在库房

In the storeroom 在库房 A:Where can I find a spare hose for the pump? A:我在哪里可以找到一跟备用的机泵软管？ B:What size do you need? B:你需要什么型号的？ A: 25 mm diameter. A:直径25毫米的。 B:They're at the back o

发表于:2019-01-14 / 阅读(83) / 评论(0)

职业技术英语口语

购物英语对话-Buying a Pan(1)

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A: Oh, yes. I like that one. But it's too heavy. B: Okay, try this one. It's made of aluminum. A: O

发表于:2019-01-20 / 阅读(124) / 评论(0)

购物英语对话

【购物】买平底锅-Buying a Pan

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A:I like that one, but it's too heavy. B: Okay, try this one. It's made of aluminum. A: This is muc

发表于:2019-01-21 / 阅读(100) / 评论(0)

购物-Shopping

VOA标准英语2008年-Iconic Former Samsung Chief Spared Prison Time

One of South Korea's most powerful business leaders has avoided a prison sentence for alleged corruption. A South Korean court agrees the former chairman of Samsung evaded taxes, but it threw out more serious charges. VOA's Kurt Achin reports from S

发表于:2019-02-02 / 阅读(82) / 评论(0)

VOA标准英语2008年（七月）

Tree climbing: Part 2

Tree climbing: Part 2 NB: This is not an accurate word-for-word transcript Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme（节目,计划）, Im joined by Kate.

发表于:2019-02-05 / 阅读(101) / 评论(0)

六分钟英语

新西兰英语 508 Bad weather in Tauranga again

Bad weather meant that oil could not be pumped out of the ship the Rena today. The waves were too high. Pumping the oil is slow work because the oil is cold and thick. The pipe from the Rena to the oil barge is nearly 200m long and quite narrow, 7.5c

发表于:2019-02-17 / 阅读(46) / 评论(0)

新西兰英语

万物简史第351期:孤独的行星(16)

Apart from much else, our lively interior created the outgassing that helped to build an atmosphere 不说别的，我们活跃的内部使大量气体喷涌而出，帮助建立了大气层， and provided us with the magnetic field that shields us

发表于:2019-02-25 / 阅读(46) / 评论(0)

万物简史

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

application data description