算子序列

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(571) / 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(360) / 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(394) / 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(254) / 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(261) / 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(254) / 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(179) / 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(322) / 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(252) / 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(348) / 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(298) / 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(274) / 评论(0) 分类 Scientific American(五)月

由于传统的英语教学里面不涉及小作文的内容,所以雅思写作的小作文部分一直是很多同学的软肋。不会说名称,不知如何分析对比,即使有思路却不知如何表达,成为很多同学的问题。下面

发表于:2019-01-18 / 阅读(255) / 评论(0) 分类 雅思英语

101 Why did he cut himself this morning? Because he shaved hurriedly. 102 What did he take? He took acake. What did he do with it? He ate it quickly. 103 What did you give him? I give him aglass of water. What did he do with it? He drank it thirstily

发表于:2019-01-23 / 阅读(184) / 评论(0) 分类 英语学习乐园

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(222) / 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(288) / 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(207) / 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(183) / 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(273) / 评论(0) 分类 柯南脱口秀

Russia's dispute with Turkey is leaving tourists out in the cold. Since Moscow banned package tours to Turkey, Russians hoping for some winter sun are trying to find an alternative. And the ban is also affecting Russian tour operators who now need to

发表于:2019-03-04 / 阅读(232) / 评论(0) 分类 cctv9英语新闻2016年
学英语单词
acompte
acupoint block
air density
Allen, River
almack's assembly rooms (london)
animal-derived food
aptheker
arm badge
Association of Diesel Specialists
at seller's option
AVNFRP
bbn
Bosch fuel-injection pump
breeding gain
check out system
choice indicator
congenital cyst of liver
crotch-droppings
divergence line
DOOPP
Edmunds County
ethnic marriage
Excelerator
exempt from tax
facilitatings
ficklenesses
Foism
fuet
gleemen
Gmbhs
go about one's work
grazing capacity
Guasacavi, Cerro
hamberger
Hierosolymitan
homoeomorphous
hybrid flowsheet
idiostatic method
illegal business
jaguarondis
Japanesy
Lepidium cuneiforme
long distance network
loom effective speed
LUFC
macleans
man pack
mean entropy (per character)
mechanical area
meran
mesococci
micro (analytical) balance
misportrays
mobile(genetic)element
Nouart
optography
out-of-line subprogram
paraphrases
paroxyproptone
peripheral chromatolysis
point of equilibrium
pondage type power plant
primary radical
proposals for the projects
prunes and prisms
pulse delay fall time
quirogite (quiroguite)
radiogoniometric
retracking
revetted
roadfood
robert joffreys
rotational speed governor
savoriest
scfv
sea water level
Sekijima dementia paralytica tremor syndrome
settled material
sheenah
shop-lift
soreness of waist
spooky
stand the gaff
steal sb's heart
stenothermic organism
sun hemp
swim-out
symbol error
technical data type
thecalutein
thermorytic
traversing binary tree
treat me nice
tsumebs
unvenomous
upfront
vacuum telescope
Villebrunea pedunculata
VPF
vulval cleft
witch bottle
yes way