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Editors note: This is the third episode of four-part series on verb tenses. Be sure to listen to part one and part two first. For VOA Learning English, this is Everyday Grammar. Today we are going to talk about the perfect verb tenses. Perfect tenses

发表于:2018-11-27 / 阅读(650) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Section A [00:01.23]1. M: I haven't decided which subject to major in [00:04.96]physics or chemistry. [00:07.76]W: It isn't easy to choose,is it? [00:10.21]Q: What does the woman mean? [00:13.87]2. W: The map shows that this street goes downtown. [00

发表于:2018-11-29 / 阅读(447) / 评论(0) 分类 决胜四级听力必备

Section A [00:01.54]1. M: My grandpa died in 1978. I was 18 years then. [00:08.20]W: That means he would be 76 if he were alive. [00:11.49]Q: How old was his grandpa when he was dead? [00:14.45]2. M: Why are you going so fast? [00:17.53]Where are you

发表于:2018-12-01 / 阅读(487) / 评论(0) 分类 决胜六级英语听力

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Its the time of year to take a look backand thats just what the journal Science did as they listed their most important breakthroughs of 2008. At the v

发表于:2018-12-02 / 阅读(322) / 评论(0) 分类 Scientific American(十二)月

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(371) / 评论(0) 分类 数学英语

Broadcast: Jan 15, 2003 By Jerilyn Watson This is the VOA Special English Health Report. Many millions of people around the world suffer from problems of the small intestine. Bleeding from abnormal gr

发表于:2018-12-07 / 阅读(334) / 评论(0) 分类 VOA2003(上)-健康资讯

[ti:UNIT 7 Enjoy Your Hobby Lesson 56:Unit Review] [0:01.051]Unit 7 [0:02.631]Enjoy Your Hobby [0:04.894]Lesson 56: [0:06.943]Unit Review [0:08.907]I. [0:10.231]Building Your Vocabulary [0:12.963]A. [0:14.500]Fill in each blank with the proper word o

发表于:2018-12-10 / 阅读(344) / 评论(0) 分类 河北教育初中英语(初中起点)八年级上

发表于:2018-12-12 / 阅读(284) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The human genome was sequenced, and in the process of moving that forward the technology that was developed was incredible. And because of their efforts in human genome,

发表于:2018-12-24 / 阅读(423) / 评论(0) 分类 Scientific American(十)月

Have you ever bought a new electronic device, or tried a new activity, and then dropped it because you were sure you couldnt possibly master it? Well, dont give up so quickly. Researchers performed six experiments that involved subjects trying out ne

发表于:2018-12-24 / 阅读(212) / 评论(0) 分类 Scientific American(七)月

Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in

发表于:2018-12-27 / 阅读(320) / 评论(0) 分类 2014年ESL之商务英语

People initially expect to learn a new skill easily, then become overly pessimistic when reality sets in. Have you ever bought a new electronic device, or tried a new activity, and then dropped it because you were sure you couldnt possibly master it?

发表于:2019-01-02 / 阅读(222) / 评论(0) 分类 60秒科学

图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t

发表于:2019-01-02 / 阅读(439) / 评论(0) 分类 数学英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(381) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? Robin Williams thought that the platypus was cobbled together by an inebriated deity: Lets take a beaver. Lets put on a ducks bill. Now we know how weird the platypus is

发表于:2019-01-08 / 阅读(358) / 评论(0) 分类 Scientific American(五)月

古埃及金字塔是奴隶制帝王的陵墓,最宏大的当为吉萨三座大金字塔。塔基呈方形,每边长230米,高146米,用230余万块巨石(每块平均重达2.5吨)垒成,国王墓室用一块400吨重的石板垒成。整体规

发表于:2019-02-01 / 阅读(341) / 评论(0) 分类 阅读空间

BEIJING, Aug. 22 (Xinhuanet) -- Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday. An international team of resear

发表于:2019-02-08 / 阅读(388) / 评论(0) 分类 英语新闻

Listen to the schedule of a business trip. Fill in numbers l-8 to point out the sequence of the schedule. I'm leaving for Milan on the 7th of June. l'II arrive there on the 8th evening at about 7:OOpm. Then, l'II take a shuttle bus to the hotel. On t

发表于:2019-02-17 / 阅读(263) / 评论(0) 分类 英语听力练习题

Listen to the dialogues and write the correct sequence of l-6 as mentioned in the dialogues. A:How do I search books from the computer? B:First, key in your PIN number. Then, it goes to the Library's Homepage. Then, you can choose any way you want to

发表于:2019-02-17 / 阅读(274) / 评论(0) 分类 英语听力练习题

Thank you for being here,Fareed.Nice to have you on the show. 多谢你抽空前来 法里德 很高兴你能来上节目 Let's get started first with your background.I do think I know a lot about you. 首先聊聊你的背景 我觉得我很了解你

发表于:2019-02-23 / 阅读(356) / 评论(0) 分类 柯南脱口秀
学英语单词
ABL
abstract unit
accession to a treaty
air side blown converter
allotriomprphic crystal
alongst
amyloins
antarctic bottom water (aabw)
augured
automatic segmentation of Chinese word
axial-blast extinguishing chamber
bother oneself about
brahmaeids
car decking
chip architecture
Chrysippus
colorimetry
continuous debris flow
contra danse
cross-network LU-LU session
cursive script
Dalkon Shield
damping ropes
david beckham
deep flaw
delay loop
delis
deposited sum
directly to advanced study
discount card
disproven
ecphysesis
electrically transmittingsynapse
feateous
genus mesuas
genus richeas
germanophone
grey blibe
grid pitch
guiac
high purity nitrogen
HPLA
hyperdorian
ignites
ilmens
imars
kutch, rann of
Labriola, Antonio
light-aircraft
metacyclic equation
micellar dispersion
mizen-sail
morpholinium fluoroborate
morphotropy
myeloplastic malacia
new-cut
non treaty
non-polluting or pollution-reducing processes
normal morphism
opening lines
penicillium spinulosam
perezon
Quincke's puncture
rated current-carrying capacity
reaction particle
recording-room
related packaging
residue of the power
rufous-bellied kookaburras
sand pulp
schedule of tariff concessions
schistosome ovum
self-filling windscreen washer
semiconductor-controlled rectifier
shielding case
silvermine
sirmiones
slip counter
sodium paminobenzene sulfonate
solder sealing glass
steel-ingot
systemaltization
take sth by the best handle
Taxophytina
temmer
thermal emission
third order bend
tower basin
trail
trunk route
two-cavity die
U-trough scraper conveyor
UNICAP
universal inclinometer
usually humid in tropical area
venae pericardiacophrenicae
water immersion size test
well-visaged
welsh mountain sheep
wet cemented
William Patterson
Wunsiedel