[化] 弗兰克-赫兹实验

STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. Today we tell about the history of radio and the latest technology. (MUSIC) SHIRLEY GRIFFITH: Our story begins in Britain in eighteen seventy-three. A scientist named James Max

发表于:2018-12-01 / 阅读(127) / 评论(0) 分类 2010年VOA慢速英语(十二)月

each a.各自的,每 pron.每个,各自 eager a.热切的,渴望的 eagle n.鹰 ear n.耳朵,耳状物;听力,听觉 early ad.早,在初期;最早 a.早期的;早熟的 earn vt.挣得,

发表于:2018-12-01 / 阅读(230) / 评论(0) 分类 大学英语四级词汇

[ti:UNIT 4 Look into Science! Lesson 25: Let's Do an Experiment!] [0:00.466]UNIT 4 第四单元 [0:02.644]Lessons 25~32 第25~32课 [0:05.438]Look into Science! 观察科学! [0:07.483]You Will Learn 你将学到 [0:08.630]Functions 实际应用

发表于:2018-12-13 / 阅读(175) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

Unit 4 [00:02.98]Look into Science!How Can a Paper Have One Side? [00:10.63]A piece of paper has two sidess. [00:15.07]See?This piece of paper has a white side and a pink side. [00:22.44]In this experiment,In this experiment,we make a piece of paper

发表于:2018-12-17 / 阅读(187) / 评论(0) 分类 北京仁爱英语八年级下

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2018-12-17 / 阅读(176) / 评论(0) 分类 英语广播节选

[00:03.08]PRE-READING [00:07.16]Do this section all by yourselves [00:11.91]and look up any information you're interested in the dictionary. [00:29.28]Curie(F.kyri),Pierre(1839-1960),and Marie(1867-1934),French physicists, [00:52.14]husband and wife,

发表于:2018-12-18 / 阅读(221) / 评论(0) 分类 高中英语人教版高一

The four scientists -- three men and one woman -- are taking part in this experiment designed to determine how well food, water, and oxygen can be used and recycled under controlled conditions. The test of the controlled ecological life support syste

发表于:2018-12-20 / 阅读(136) / 评论(0) 分类 2016CRI中国国际广播电台

[00:02.99]3 Listen and order. [00:07.30]You will hear Miss Wang give instructions on [00:10.67]how to use a Bunsen burner. [00:14.04]Listen to the instructions [00:15.94]and number the pictures in the correct order. [00:20.12]Number the steps 1-8. [0

发表于:2018-12-29 / 阅读(201) / 评论(0) 分类 外研社新标准初中英语九年级

It's always fun when my brother comes to visit from New Zealand. Because he is a math and science teacher, he often thinks of interesting things to do that fascinate the children. When he heard that one of my sons does experiments in the kitchen for

发表于:2019-01-01 / 阅读(112) / 评论(0) 分类 英语博客 A cup of English

(THEME) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Faith Lapidus with the VOA Special English program EXPLORATIONS. You are listening to our program today on a radio. Almost no communication would exist in the world without the electromag

发表于:2019-01-03 / 阅读(146) / 评论(0) 分类 2018年VOA慢速英语(九)月

Sidney was a 14-year-old boy with an interest in the sciences. One summer day he started his own investigations. With his 12-year-old sister Sophie in tow, he caught a large bull frog in a local pond. Sidney started his experiment with the amphibian,

发表于:2019-01-03 / 阅读(135) / 评论(0) 分类 英汉幽默故事选读

EXPLORATIONS - The Story of Radio By Paul Thompson Broadcast: Wednesday, June 01, 2005 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: Satellite technology can broadcast radio anywhere. And this is

发表于:2019-01-07 / 阅读(135) / 评论(0) 分类 Explorations

Lesson 31: [00:03.50]What Lucas Says [00:06.87]Hi!I'm Lucas.I had fun with the experiments in this unit.Did you? [00:15.23]I really liked the weird mud.I put a little cornstarch into a dish. [00:22.07]Then I put a little water into the cornstarch.It

发表于:2019-01-09 / 阅读(195) / 评论(0) 分类 河北加拿大版初中英语

UNIT 4 [00:03.08]Lessons 25~32 [00:08.05]Look into Science! [00:11.89]Lesson 25: [00:16.64]Keep the Candle Burning!Science is so interesting! [00:23.72]I'm sure you'll like this experiment! [00:28.68]When you do this experiment,you will learn somethi

发表于:2019-01-09 / 阅读(303) / 评论(0) 分类 河北加拿大版初中英语

Lesson 32: [00:03.50]What Do You Know?Have You Seen These Words? [00:09.38]air [00:12.02]What's inside a balloon?Air! [00:16.69]basket empty [00:21.45]I have no food in my refrigerator.My refrigerator is empty! [00:28.81]fill [00:31.27]I fill my back

发表于:2019-01-09 / 阅读(454) / 评论(0) 分类 河北加拿大版初中英语

check,examine,experiment,test check 指校对(文章、书信等)或找错、检查。 examine 表示察看或观察以了解情况,仔细检查。 experiment表示为了发现或证明某个事实而进行操作。 test表示以某种手段来试

发表于:2019-01-16 / 阅读(87) / 评论(0) 分类 英文语法词汇

EDUCATION REPORT - Duke iPod Experiment By Nancy Steinbach Broadcast: Thursday, August 05, 2004 This is Steve Ember with the VOA Special English Education Report. Duke University in Durham, North Caro

发表于:2019-01-29 / 阅读(181) / 评论(0) 分类 教育与新闻

时间状语从句,条件句中,从句用一般现在时代替将来时 When, while, before, after, till, once, as soon as, so long as, by the time, if, in case (that), unless, even if, whether, the moment, the minute, the day, the year, immediat

发表于:2019-02-04 / 阅读(129) / 评论(0) 分类 英文语法词汇

一、写出下列动词的现在分词: play______run__________swim________make_______go________like________write________ ski_______read________have_______sing_______dance_______put______see_____buy______love__________live_______take________come__

发表于:2019-02-07 / 阅读(97) / 评论(0) 分类 英文语法词汇

Science and technology. 科技。 Geoengineering. 地理工程学。 Implicit promises. 包含着承诺。 A geoengineering experiment has come unstuck. But there will be more. 地理工程试验取得突破。可期待更多。 FOR the past few year

发表于:2019-02-26 / 阅读(168) / 评论(0) 分类 经济学人综合
学英语单词
aestheticised
anoximia
anti-combination laws
Arenaria
automatic identification
Ban Pak Mak
beta-HCG
bordered symmetric matrix
break output
chloralacetoxime
colinear coaxial antenna
contributory interest
coproduction of service
cross-country samples
cymel
daddle
defeatists
dinosaur plant
DOA
elimination of nonmetallic inclusion
energy tax credit
etterlin
expected total reward
fat nigrosine GD
feathered
felicitas
fettering
field of self-induction
fine ream
fixed head magnetic disk
flect
fluprednidene acetate
Foramen petrosum
forebreasts
fund for individual consumption
Gefarnyl
Gilbert Charles Stuart
ginglymodi
haemodynamic
helplists
highest-averages
hydrologic(al) forecast
hymenia
interjurisdictional
inverse Nyquist array method
jelly donuts
jointly determined variables
Madison River
maintenance capacity
massachuset
matrix cracking
mexaforme
microirradiation
minor blast hazard
mucobacterium xenopi
multiple-step income statement
nicotina stomatitis
no load fund
nonnie
nounces
numbered clause
oliu
oxgate
para-methoxybenzyl alcohol
peak with heading
pernanent paper
perverseness
picture magazine
Pitt Point
please stay
polgon
polysemousness
porphyroblastic migmatite
port dues,port charge
proxy records
r-e
rabbious
refringences
reliability test
retime
Rhododendron detersile
ride-alongs
sand pattern method
satnam
sayve
score sheet
stabilization of export receipts system
static short
sterile
stonewashing
suffumigations
switching selector repeater
swithers
syntactic metalanguage
to get off
tropical century
tsarevitches
wayport
well-testing truck
Wellesleyan
Wenckebach's sign
zeb