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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(569) / 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(356) / 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(391) / 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(249) / 评论(0) 分类 Scientific American(十二)月

Learning a New Operating System Vanessa: [gasps] What happened to my computer overnight? This cant be my computer. Reza: It is. The tech guys installed a new operating system on all of the computers after hours. Vanessa: But my desktop looks complete

发表于:2018-12-03 / 阅读(230) / 评论(0) 分类 2015年ESL之商务英语

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(257) / 评论(0) 分类 数学英语

[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(250) / 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(176) / 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(316) / 评论(0) 分类 Scientific American(十)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(248) / 评论(0) 分类 2014年ESL之商务英语

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(344) / 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(292) / 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(268) / 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(217) / 评论(0) 分类 阅读空间

YICHANG, Oct. 30 (Xinhua) -- China's Three Gorges Dam on Sunday reached its designed highest mark, the second time for the world's largest water control and hydropower project to run at full capacity. The water level hit 175 meters at 5 p.m. after st

发表于:2019-02-07 / 阅读(282) / 评论(0) 分类 英语新闻

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(282) / 评论(0) 分类 英语新闻

Server management can be simplified The need to reduce the complexity of IT infrastructure management remains a priority on every IT managers agenda. One of the most prominent open standards addressing that need, Intelligent Platform Management Inter

发表于:2019-02-08 / 阅读(261) / 评论(0) 分类 实用英语

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(203) / 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(180) / 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(267) / 评论(0) 分类 柯南脱口秀
学英语单词
absolute porosity
American National Standard Institute
aqua-vitae
arthea
automatic dryer
bargaining models
base-circle
batter -fried
bell mouth of stem hawse pipe
bifurcated launder
bilwise
bottle-glasses
bronchovesicular
cascade stripe
causa secunda
common shares
core of dam
cored department
counterstereotypical
Cowley, Abraham
defendability
deles
delightfulnesses
dereverberation
diacetymorphine
diminished complement
Dinokwe
direct access hashing
direct isotopic dilution method
dorste
economic rationality
electro-acoustic transducer
elemental-based phosphate
encoding model
Endal
endless variable capacitor
ethylene cyanide
faith
foregirt
fuel (rod) flattening
gamboge yellow
ghood
gleame
got to know
GPP (general purpose processor)
Grounding Equipment Conductor
half-bushel
have authority
heat labile antibody
helpsome
high performance thin-layer chromatography
hilum nuclei dentati
hob arbor carriage
hot taste
houndly
hydroxyeremophilenolide
hypocycloidal
indicatio curativa
JH binding protein
joffes
karstologists
lateral eye
latex particle
mainsupply
mazzettis
mountants
musculi glossopalatinus
organizational effectiveness
p-type semiconductor
paddle mixer with intermeshing fingers
paned
parameter sensitivity
past reclaim
PCMCIAs
phenylacetamide
photoinjectors
pianissimos
pony-trekkings
power forming
preference order
queu(e)ing register
radio tank
reciprocal linear
refrigerated cargo hold
regenerative power
reserve shutdown availability time
roof mounted window washing system
scan fraction
seabuckthorn
selected pressure surface
slender-waisted
sodium citrate blood transfusion
spirit bear
spodoptera exiguas
theory of classes
tree sparrows
vested benefits
Web appliance
wieldier
yp extent.
zircon refractory
zollars