零序方向元件

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(609) / 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(421) / 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(432) / 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(289) / 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(329) / 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(309) / 评论(0) 分类 河北教育初中英语(初中起点)八年级上

020 asking for directions Words Traffic sign Policeman Direction Route Junction Crossroads Up-to-date map Side road Traffic lights Railway station Total distance Roundabout One-way street Motorway Phrases Turn left/right Go straight on Turn around L

发表于:2018-12-12 / 阅读(265) / 评论(0) 分类 情景英语口语100主题

发表于:2018-12-12 / 阅读(240) / 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(376) / 评论(0) 分类 Scientific American(十)月

Im hopeless at giving directions. I get very confused. Im sure I send people in totally the wrong direction. For some reason, I always get stopped for directions in the street. I can usually direct someone if its just a block or two, but thats it. If

发表于:2018-12-26 / 阅读(220) / 评论(0) 分类 纯正英语一分钟

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(291) / 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(396) / 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(343) / 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(313) / 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(317) / 评论(0) 分类 雅思英语

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(299) / 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(350) / 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(235) / 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(231) / 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(311) / 评论(0) 分类 柯南脱口秀
学英语单词
actio
aggregate price effect
alumni meeting
anaobarbital sodium
Aorangi
bawl and squall
blog hosting service
burst binding
cerotelium gossypii
Ciaglinski's tract
class interrupt
Clematis yunnanensis
climatic instability
coedition
coffee-ground-like
converted dwelling
corimelaenids
corporate dealer
decentralize
decrustation pliers
deleted scene
dimensional data
dorsal lateral nerve of great toe
eccentric converter
economic establishments
endothelia
epidural ascending spinal paralysis
epigastric aura
evaporation meter
fraction field
fragged you
from that time on
grab with teeth
graphical records
half sovereign state
hemerocallis minor mill.h.graminea andr.
Hippobroma longiflora
Holy Loch
ice slab
in litteris
International Grandmaster
intervention planner
joo
justice of appeal
lanierland
Lidgetton
local batteries
locksley
low-altitude aerial photography
luminosity
m. suspensorius duodeni
manufacture by powder metallurgy
Marshall-Olkin distribution
mean sidereal time
modern (secondary) school
mud spring
multiple coating
muricide
mydocalm
myelopoietic
Napoleonville
neckrein
neosakuranin
no fewer than
nondedicated mode
Oostkerke
orthoevolution
outdoor heat exchanger
paleoecologists
peritoneo-puncture needle
phosphori
pleuropneumonia-like organisms
pogosyans
potato digging machine
principal meridian
Pure Land Sects
qradrangle frame
quasi-one-dimensional flow
rainfall depth
raus
real absorption
sabil
scathes
scrag
seed zone
single-operation part
stethoscopes
sweet sultans
synchronous rotating device
ten seconds
toothed crown
trippets
USCPFA
veradero
vesting period
Voltlage
volumetric steam quality
wet tan
white clipping
Wilsche
yard of material