自激振动,自由振动

Tsipporah

A few weeks after my eighth birthday, my grandmother took me to visit her friend Naomi. The rooms Naomi lived in could have been called a 1) flat, I suppose, but it wasn’t a flat in a modern block.

发表于:2018-11-28 / 阅读(251) / 评论(0)

疯狂英语2002年

英语歌曲:《阿甘正传》主题曲

奥斯卡精选《阿甘正传》主题曲 San Francisco Scott McKenzie If you're going to San Francisco Be sure to wear some flowers in your hair If you're going to San Francisco, you're gonna meet some gentle people there For those who come to Sa

发表于:2018-11-29 / 阅读(179) / 评论(0)

英语歌曲收藏之一

新概念2词汇 88-90

Lesson 88 trap 陷入 Six men have been trapped in a mine for seventeen hours. 6个人被困在矿井里已有17个小时了。 They were trapped in cave. 他们被困在山洞里。 Due to the heavy snow,they were trapped in the house in the mountai

发表于:2018-12-08 / 阅读(764) / 评论(0)

新概念英语词汇随身听手册2

San Francisco

San Francisco If you*re going to San Francisco, be sure to wear some flowers in your hair. If you*re going to San Francisco, you*re gonna meet some gentle people there. For those who come to San Franc

发表于:2018-12-14 / 阅读(183) / 评论(0)

英文歌曲第四辑

SSS 2009-09-28

Ever get a ringing in your ears after a loud blast of music on your iPod? Thats one example of the usually temporary condition called tinnitus, the sensation of sound even when no sound is being produced. But a new inventioncreated by high school stu

发表于:2018-12-24 / 阅读(163) / 评论(0)

Scientific American(九)月

【一起听英语】年轻人就职危机

人口越来越多，优秀人才也越来越多，应聘工作变得越来越难，竞争压力越来越大....... This is not a word for word transcript. Rob: Hello and welcome to 6 Minute English. I'm Rob and with me today is Natalie. Natalie: Hi

发表于:2018-12-27 / 阅读(129) / 评论(0)

一起听英语

英语博客:Pronouncing the 'th'

Today's podcast will be dedicated to the 'th'. English, being quite irregular at times, has two ways of pronouncing the combination of the t and the h. That may seem simple, but getting it right is a key to sounding like a native. I have met many peo

发表于:2019-01-01 / 阅读(130) / 评论(0)

英语博客 A cup of English

SSS 2009-01-14

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid

发表于:2019-01-08 / 阅读(146) / 评论(0)

Scientific American(一)月

A Fish That 'Sings' Love Songs?

A Fish That 'Sings' Love Songs? This is the sound of a fish singing: Hmmmmmmmm. It is a male fish a plainfin midshipman, to be exact from the Pacific Ocean. He is singing, or humming, a love song to get female fish to come and visit the nest he built

发表于:2019-01-12 / 阅读(184) / 评论(0)

2016年VOA慢速英语(十)月

VOA标准英语2014--Vehicles May Soon Be Talking to Each Other 汽车或许很快就能相互交流

Vehicles May Soon Be Talking to Each Other 汽车或许很快就能相互交流 WASHINGTON U.S. regulators are close to approving new standards for enabling vehicles to communicate with each other, hoping the new technology will reduce traffic accide

发表于:2019-01-14 / 阅读(122) / 评论(0)

VOA标准英语2014年(四月)

TED演讲:关于听的艺术(5)

And so on. There is a little bit of a difference there that is worth just thinking about. 等等...但即便是有些许的不同，那也值得仔细想一想。 And I remember when I was 12 years old,and I started playing tympani and percussion, an

发表于:2019-01-18 / 阅读(135) / 评论(0)

TED演讲国际问题篇

每天小事-早起(4)

Everyday routine 每天小事 Wake up early 早起 Early in the morning I am free to start my day on my terms. By waking early, I can set the pace and create a mood that lasts the day. The quiet of my house has a soothing hum that vibrates against my

发表于:2019-01-22 / 阅读(170) / 评论(0)

英语听力广播—Listening

科学新发现：我们的1秒钟将变长了！

We all know time is a construct, and right now, it's kept by the very precise tick of an international network of around 500 atomic clocks. 我们都知道时间是个复杂的概念。目前，世界上有一个由大约500台原子钟组成的网络，

发表于:2019-02-01 / 阅读(112) / 评论(0)

阅读空间

低头党注意！常常玩手机的九大风险

1. Cyber Sickness 晕屏症 Also called digital motion sickness, symptoms that range from headaches to woozy feelings can occur when you quickly scroll on your smart phone or watch action-packed video on your screen. 这种病也被称为数字晕车，

发表于:2019-02-03 / 阅读(944) / 评论(0)

阅读空间

英语歌曲:Money Can't Buy It

Money Can't Buy It by Annie Lennox Money can't buy it... baby Sex can't buy it... baby Drugs can't buy it... baby You can't buy it... baby I believe that love alone might do these things for you I believe in love alone yeah yeah Take the power to set

发表于:2019-02-04 / 阅读(185) / 评论(0)

好听的英文歌曲

Why Don't Snorers Wake Themselves Up?

Why Don't Snorers Wake Themselves Up? Anyone who's ever slept in the same room as a loud snorer knows how infuriating it is to have to suffer through all that noise while the offending party remains blissfully oblivious and asleep. Loud snorers can w

发表于:2019-02-04 / 阅读(133) / 评论(0)

阅读空间

90%的人有手机幻听综合症

Many of us have reached in our pockets, feeling a vibration, wrongly believing our mobile phones have just rung. 许多人都曾有过这样的错觉：觉得手机在振动，于是去口袋拿手机，结果手机根本没响。 The phenomenon even

发表于:2019-02-07 / 阅读(132) / 评论(0)

阅读空间

英语小达人 299 What the Student Say in Science Classes

What the Student Say in Science Classes 自然科学课上学生们都说了什么 The following quotations were gleaned from classroom discussions in 5th and 6th grade science classes. 下面的这些话都是从五六年级的自然科学课的课堂

发表于:2019-02-17 / 阅读(140) / 评论(0)

英语小达人

环球商务英语100句01

1. Its a long time since I had the pleasure of seeing you 我们很久不见了。 2. You must be tired from the long flight. Please take a rest today.长时间地搭乘飞机您一定累了，今天就请好好休息吧。。 3. Since it is hot toda

发表于:2019-02-18 / 阅读(112) / 评论(0)

实用英语

乔布斯传第322期:丽萨住了进来(4)

Jobs's ups and downs with Lisa continued after she moved to Manhattan as a freelance writer. 在丽萨搬到曼哈顿成为自由作家之后，乔布斯跟她的关系继续起伏不定。 Their problems were exacerbated because of Jobs's frustratio

发表于:2019-02-22 / 阅读(176) / 评论(0)

乔布斯传

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Arteria gastroduodenalis

benjamin franklin norris jr.s