上游激活序列

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(409) / 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(188) / 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(227) / 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(133) / 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(136) / 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(145) / 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(76) / 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(183) / 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(130) / 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(217) / 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(148) / 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(140) / 评论(0) 分类 Scientific American(五)月

It is certainly a unique idea - an anonymous app that lets you chat from the toilet with others in a similar position. 有一款手机应用,可以让你在如厕时和其他正在上厕所的人进行匿名交流,这个创意不错吧? Called

发表于:2019-01-16 / 阅读(113) / 评论(0) 分类 英语新闻

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(105) / 评论(0) 分类 阅读空间

总有人会问怎样学英语效果最好,其实这个问题是没有统一的答案的,这里有一些学习英语的建议,希望能对大家有所帮助。 Warming-up to Study English学习之前先热身Just as there are exercises to help

发表于:2019-02-06 / 阅读(93) / 评论(0) 分类 英语学习方法

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(148) / 评论(0) 分类 英语新闻

Keeping a busy social life amongst lots of friends may keep people slimmer than spending several hours on a treadmill, according to scientists. 科学家研究发现,与在跑步机上锻炼几个小时相比,忙于参加朋友们的社交活动可

发表于:2019-02-11 / 阅读(104) / 评论(0) 分类 阅读空间

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(115) / 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(88) / 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(120) / 评论(0) 分类 柯南脱口秀
学英语单词
adultera
antenna waveguide switch
arched bridge
ark at ee
available signal-to-noise ratio
be on one's last pins
Bell dresser
benzoylcholinesterase
blue bomb
bourg-st.-maurice
brass solder
break-contact unit
brewing agent
buggard
Bulk Cargoes Packing
callosal agenesis
Cherusti
chromosome aberration syndrome
chronaxia
ciotat
co-admit
consolidated balance sheet
covenably
critical magnification factor
cross-valley
crystal refractoscope
d.c. restoration
decomposed rock
defined type
depigmenting
dielectric printing
Dilin
entodon challengeri par.
extracting uranium from sea water
family Tetranychidae
fast ion spectroscopy
field silage cutters
fine bagasse
fish skin
fissiogenic isotope
forecast of spring flood
frosted finish
gateway drugs
George Eliot
glutaric
gummatous ulcer
Hamilton's principle
heavy meson
Högbo
imvite
in multiple s
in-prints
Jagdalak
kerosene blast burner
kikayon
L-lobeline
longitudinal underdrain
malacozoologist
martinottis
maximum pumping distance
miko
mulhouses
New naturalism
non-absorbent material
obfusticate
parabema
Parasenecio petasitoides
photon counting spectrophotometer
phycemycete
piston key
pleomorphous microbe
presumption of guilt
profile subject
pure spectral color
quartz watch with LCD
quenched and tempered steel
quinazamid
Rashm
recasting
record industry
Rhenok
runway visibility
ruralism
seamless article
Severnside
sex-change operation
Shastan
snaggle
soft gamma burst repeater
stopwork
to absent oneself from sth
toilet cubicle
tramp steel
TSCLT
underexcited motor
Vickers diamond hardness
weatherreport
wetted-wall column
with good cheer
wynland
zone plate
Zsigmondy's gold number methods