表面自由能

SSS 2008-03-31

This is Scientific American's 60-Second Science, I am Steve Mirsky, got a minute? You are pulling the tape off the roll and it starts to tear, or you are moving wallpaper and it refuses to strip off in strips or in what may be the most infuriating ca

发表于:2018-12-24 / 阅读(90) / 评论(0)

Scientific American(三)月

托福听力短文 I-11-3

(Woman) Today I want to talk about the Earth's last major climatic shift, at the end of the last ice age. But first, let's back up a moment and review what we know about climatic change in general. First, we defined climate as consistent patterns of

发表于:2018-12-30 / 阅读(129) / 评论(0)

托福听力短文

英语听力文摘 English Digest 615、制造属于你自己的月球陨石坑

Create Your Own Moon Craters! What makes science really fun is when you get to do things yourself, so today were going to be making moon craters. Theyre the roundish blast-marks left on the moons surface by ancient meteorites. The moons surface is co

发表于:2018-12-31 / 阅读(50) / 评论(0)

英语听力文摘 English Digest

VOA慢速英语2017--Show Your Team Spirit!

From VOA Learning English, this is Words and Their Stories! On this program, we talk about origins and usage of common expressions in American English. Today we explore the word spirit. Spirit is one of those words that has many different definitions

发表于:2019-01-02 / 阅读(163) / 评论(0)

2017年VOA慢速英语(四)月

2007年VOA标准英语-Phoenix Probe Ready for Mars Mission

By Paul Sisco Washington 13 July 2007 NASA scientists have unveiled details of the space agency's plans to pierce the icy surface of Mars, near its north pole. The mission is designed to find evidence of water or life on the red planet. VOA's Paul S

发表于:2019-01-07 / 阅读(122) / 评论(0)

2007年VOA标准英语（七月）

Shanghai issues first free plates for new energy vehicles

SHANGHAI, Jan. 23 (Xinhua) -- Shanghai resident Qian Jun didn't have to spend a single penny on a license plate for his newly-bought battery electric vehicle (BEV). The electric car cost him 140,000 yuan (22,498 U.S. dollars) in total, including a ve

发表于:2019-01-11 / 阅读(110) / 评论(0)

英语新闻

VOA标准英语2011--Kenya Moves Full-Steam Ahead on Geothermal Production

Kenya Moves Full-Steam Ahead on Geothermal Production Kenya is expanding plans to become one of the worlds top geothermal power producers with the start of explorations at a site called Menengai. The government is also aiming to make geothermal Kenya

发表于:2019-01-13 / 阅读(97) / 评论(0)

VOA标准英语2011年(十一月)

英闻天下——413 Japan Intends to Join in TPP Free Trade Talks

Japanese Prime Minister Shinzo Abe has announced that his country is preparing to join in the US-led Trans-Pacific Partnership. Abe says once Japan is recruited in the regional free-trade group, the country is likely to enjoy duty-free treatment in e

发表于:2019-01-19 / 阅读(89) / 评论(0)

英闻天下

听一分钟英文：Solar Energy-太阳能

Solar energy is the key to our future. If we do not use it, our planet will not survive. We do not have enough resources on Earth to supply our energy needs. We are slowly using solar energy more. Most places you go in the world today you can see sol

发表于:2019-01-24 / 阅读(70) / 评论(0)

听一分钟英文-S

美丽人生之七大秘诀

美丽人生之七大秘诀 A great life doesn't happen by accident． A great life is the result of allocating your time， energy， thoughts， and hard work towards what you want your life to be． Stop setting yourself up for stress and failure，

发表于:2019-02-01 / 阅读(128) / 评论(0)

阅读空间

英语新闻视频：Rocket launch a boost for California start-up

This is Xaero - a vertical take-off and landing vehicle being developed by Masten Space Systems. The California start-up hopes the rocket will eventually carry pay-loads for NASA to altitudes of up to 30 kilometres, mainly to collect atmospheric data

发表于:2019-02-03 / 阅读(68) / 评论(0)

英语新闻视频

2006职称英语考试模全真拟试题理工类B级（二）

2006职称英语考试模全真拟试题理工类B级（二）第一部分：词汇选择（第1-15题，每题1分，共15分）下面共有15句子，每个句子均有一个词或短语划有底横

发表于:2019-02-07 / 阅读(90) / 评论(0)

实用英语

英语口语怎么说“高端大气上档次”

如今，高端大气上档次已经成为众人耳熟能详的网络用语，凭借其无与伦比的受欢迎度，高端大气上档次一度位居十大网络用语的榜首。这句让无数互联网迷们捶足顿胸的潮流时尚用语，到底

发表于:2019-02-08 / 阅读(96) / 评论(0)

英语口语

2013年美国好声音 Gravity - Ryan Innes

Summer breeze Coco Keys Hanging out you and me In the sun.oh oh Ben and Jerry's Cups and cones Wasting time Playing games on our phones On well It seems so picture perfect We laugh without a purpose We laugh without a purpose But deep beneath the sur

发表于:2019-02-11 / 阅读(96) / 评论(0)

The Voice 美国好声音

英语听书《海底两万里》第304期第23章珊瑚王国(1)

THE NEXT DAY I woke up with my head unusually clear. Much to my surprise, I was in my stateroom. 第二天，我醒来，头脑特别清爽。令我十分吃惊的是，我竟在我的房中。 No doubt my companions had been put back in their cabin

发表于:2019-02-17 / 阅读(75) / 评论(0)

《海底两万里》中英双语有声读物

英文歌曲：一见钟情如梦初醒 Free Energy - Bang Pop

Free Energy是来自美国费城的5人独立乐队，他们的音乐风格自由随性，曾被滚石音乐杂志评选为2010年最佳新生乐队之一。 Artist：Free Energy Song：Bang Pop Now I was super messed up Like it would never end Float

发表于:2019-02-20 / 阅读(55) / 评论(0)

金属

英语美文：美丽人生的七大秘诀

Seven secrets to a great life A great life doesn't happen by accident. A great life is the result of allocating your time, energy, thoughts, and hard work towards what you want your life to be. Stop setting yourself up for stress and failure, and sta

发表于:2019-02-20 / 阅读(64) / 评论(0)

英语美文

趣味青春英语电台第332期:Scratch the surface

Idiom: Scratch the surface ( something superficial ) Hit the book: Complimentary Partial Pajama Long haul flight Tip the scale Well heeled Inaugural Flagship Lingering perception Free snacks, beer and wine: US airlines are trying harder to win back A

发表于:2019-02-23 / 阅读(129) / 评论(0)

趣味青春英语

英语美文：为什么我们需要放弃

Persistence is important to achieve success, but giving up is also important. Why is it essential? Why is it necessary to give up? Because it allows you to focus your energy on the few things that are truly important. By giving up, you: 坚持是成功

发表于:2019-03-02 / 阅读(105) / 评论(0)

英语美文

托福考试语法易错题及错误统计精汇（二）

16.The early railroads were........the existing arteries of transportation: roads,turnpikes, canals,and other waterways. A.those short lines connected B.short lines that connected C.connected by short lines D.short connecting lines 答对率：50% 答案

发表于:2019-03-12 / 阅读(151) / 评论(0)

托福英语

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