工况顺序选择开关

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(565) / 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(353) / 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(388) / 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(244) / 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(255) / 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(247) / 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

Song:Switch Artist:Ashley Tisdale You're out of this world I'm sure of it A crazy intuition, you're up and on, you're here than gone, come back A curious condition And then you switch right over It's weird, yeah I know but Just can't get a hold o

发表于:2018-12-14 / 阅读(228) / 评论(0) 分类 英语热力歌曲

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(309) / 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(241) / 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(338) / 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(286) / 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(266) / 评论(0) 分类 Scientific American(五)月

今天我们要讲的第一个习惯用语是:bait and switch。Bait就是钓鱼时用的鱼饵,或者是一种引诱。在这个习惯用语里,bait就是引诱一个顾客上圈套,付高价来买不值这个价钱的东西。Switch就是很快

发表于:2019-01-14 / 阅读(303) / 评论(0) 分类 美国习惯用语

今天我们要学的词是in the line of duty。 In the line of duty意思是在执行公务的时候。North Carolina firefighters honored their comrades who were killed in the line of duty last year, 北卡罗来纳州的消防队员悼念了去年在

发表于:2019-01-25 / 阅读(200) / 评论(0) 分类 英语每日一词

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(210) / 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(278) / 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(201) / 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(179) / 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(263) / 评论(0) 分类 柯南脱口秀
学英语单词
air-control center
alchermes
ano
area control method
b-complex
box header
broadside antenna
busy indicator
certified mail
chairer
chirashi
coherent derived unit of measurement
conformational search
controversialities
credit-and-debit economy
cubhunting
curtainless
cutting survey
data flow circuit
eddy diffusivity of momentum
empty chair
esiatron
executive link
feed-water connection
flip chip on board
flush-type instrument
foetidas
graphitic carbon
grease characteristic
harran
iodomethyl cyanide
Kirakira
Line turnaround.
livefood
luteas
mathele
measuring technique
media representation of innovation
mission sequence
molligut
murderous vilain
muskroot
nocturne
north-north-westwards
northern cricket frog
not have a clue
ntid
ox-pecker
peakflowmeters
phylloid
pist
pit bull
portment
prabal
preost
privacy compromise
projet
puch
pull out type fracture
raccoonish
reentry systems environmental protection
register of deeds
reversible tractor
rheumatism weed
Rock-Eval pyrolysis
rocket armament
Round Lot Trade
Saint Gervasius' disease
sawtooth type cutter
serangium japonicum
sniff valve
space dynamics
spherical vessel
spring up in sb's mind
Stagg
static flow
storys
sweeping board
Talc-chlorite
targu-mures (tirgu mures)
telemundo
thiapyrones
thickness distance
Thiersch's canaliculi
threshold logic unit
tildes
Tradewater
Trichogaster
tumor of penis
ultraviolet erasing
unattended stand-by-time
unequal distribution
unexcused
uniform grid
unmarried man
unplumes
use without compensation
ventriculo-angiographic system
walking-around money
wavestrip
whoozits
X engineering