限制性效应

By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide

发表于:2018-12-15 / 阅读(140) / 评论(0) 分类 VOA2003(下)-环境与健康

Benjamin Frankin wondered about(at) lightning. He combined his curiosity with imagination and carried out his well-known experiment to show that lightning and an electric spark are the same thing. Cur

发表于:2018-12-30 / 阅读(282) / 评论(0) 分类 自考英语(一)78讲

If you're confused about that versus which, don't feel bad. It's one of the most common topics people ask me about. I used to work as a technical writer, and I'd often edit documents in which people used the wrong word. More than once, I'd put in the

发表于:2019-01-02 / 阅读(110) / 评论(0) 分类 英语语法 Grammar Girl

Since Halloween is coming up, I thought you could use a refresher about whiches--more specifically, when to use a which and when to use a that. To understand the difference between which and that, first you need to understand the difference between a

发表于:2019-01-02 / 阅读(133) / 评论(0) 分类 英语语法 Grammar Girl

今年7月,14岁的美国华裔少年刘继打破老虎伍兹的纪录,成为美国青少年高尔夫锦标赛史上最年轻的冠军,同时刷新老虎伍兹保持了19年的纪录。刘继出生在纽约州一个只有11万人口的小城市史

发表于:2019-01-09 / 阅读(160) / 评论(0) 分类 实用英语

Libyans Upset Over Restrictive Voting Abroad Few Libyans remember days like this when they could vote. And, it counted. Just saying that -- Libyan government. 'Voting for the Libyan government' has a nice, sweet ring to it, said Libyan voter Adam Sbi

发表于:2019-01-13 / 阅读(131) / 评论(0) 分类 VOA标准英语2012年(七月)

California Leads US in Restrictive Gun Laws There are few restrictions on owning guns in most U.S. states. Guns are widely used for hunting and sport, and for self-protection. California and several other states, including New York and Massachusetts,

发表于:2019-01-13 / 阅读(118) / 评论(0) 分类 VOA标准英语2012年(七月)

定语从句可分为限制性和非限制性两种: 1.限制性定语从句(Restrictive attributive clauses): 限制性定语从句,使所修饰的词表示一个特定的人或东西,如果去掉它,那个词就失去意义,句子就不

发表于:2019-01-18 / 阅读(140) / 评论(0) 分类 英文语法词汇

The Effect of Advertisement 广告的效果 Some businessmen were talking about advertising on TV excitedly. As none of them had ever done it before, every one had his point of view. At this moment, Mr. Grey came by. He was a car dealer and he had on

发表于:2019-01-28 / 阅读(129) / 评论(0) 分类 英语小达人

60 测试新药安慰剂的疗效 DATE=6-21-01 TITLE=SCIENCE REPORT - Placebo Effect Study BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(161) / 评论(0) 分类 科技之光

今天我们要学的词是ripple effect。 Ripple effect, 连锁反应。 The shutdown of the local mine had ripple effects on the entire community, 当地这家煤矿的关门,在整个社区引起了连锁反应。 美国汽车业界人士警告说

发表于:2019-02-02 / 阅读(121) / 评论(0) 分类 英语每日一词

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-05 / 阅读(139) / 评论(0) 分类 英语每日一词

As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th

发表于:2019-02-06 / 阅读(132) / 评论(0) 分类 英语作文

Do you sometimes wonder whether to use that or which in a sentence? In many cases, in British English, both words are equally correct. 你是不是经常想要弄明白that和which在句中有什么区别?在英式英语中的一些使用场景中,这

发表于:2019-02-07 / 阅读(104) / 评论(0) 分类 英文语法词汇

Affect and effect are different in meaning, though frequently confused. Affect is chiefly used as a verb and its main meaning is to influence or make a difference to, as in the following example sentences: Affect一般用作动词,其含义为:影响

发表于:2019-02-07 / 阅读(173) / 评论(0) 分类 英文语法词汇

Do you sometimes wonder whether to use that or which in a sentence? In many cases, in British English, both words are equally correct. 你是不是经常想要弄明白that和which在句中有什么区别?在英式英语中的一些使用场景中,这

发表于:2019-02-09 / 阅读(138) / 评论(0) 分类 英文语法词汇

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-13 / 阅读(190) / 评论(0) 分类 英语单词荟萃

As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th

发表于:2019-02-13 / 阅读(126) / 评论(0) 分类 英语作文

VATICAN CITY, Feb.28 (Xinhua) -- The resignation of Pope Benedict XVI came into effect at 8 pm local time (1900 GMT) on Thursday, who had left the Vatican by helicopter for the papal vacation retreat in south Rome earlier in the afternoon. The pope h

发表于:2019-02-17 / 阅读(146) / 评论(0) 分类 英语新闻

BEIJING, Sept. 1 (Xinhua) -- Medicine prices at public clinics have been notably reduced thanks to a policy that promotes basic medicine, an office of the State Council said Thursday. Current price levels of basic medicine used by government-funded t

发表于:2019-02-18 / 阅读(116) / 评论(0) 分类 英语新闻
学英语单词
acanthocorys variabilis
adaptive expectation hypothesis
advances warrant
aerobic-exercises
aeterna
Aganosma schlechteriana
AIMS
anarcho-primitivist
anier
aplasia of macula
biometric
bowl mixer
bus terminals
cat-o'-nine
cathidine
cold boiler
compute depreciation on an annual basis
constant-delivery pump
data processing manager
deceptivenesses
deficit for the current
dependence diagram
Deuce take you.
drapetis nigrispina
electrical explosion preventing gate
erector penis
expansion port
experimental research and development expenses
final touch
floating unit price semi-piecework wage
Floberts
fluodeoxyuridine
fluoro trichloromethane
frequency gauging
gader
genetic transmission
gyroquadrilaterals
I-HAWK
intratonsillar fissure
kobaltomenit (cobaltomenite)
lithium manganate
Lombarddy
magnitude of light
meatalplate
merchantlike
Messages for New Zealand South Pacific
mini-series
mirzoeffs
moving screen
network, branch
Nippon Kaiji Kyokai
nitracrine
nonempty closed subset
nuclear selection rule
off years
olchovik
paramesial
PAREINAE
patient management
percentage quota system
permanent-magnetic chuck
Phorcys
photographically reproduced reprint
pillar of strength
pitch trace
polychloriznation
polysemically
present time
Pristidae
quaker-oats look
quantifier postposing transformation
recamiers
relative reactivity
reputedly
residential mobility
responsibility audit
root-sheath
ROPMT
S.A.A.E.
salvationize
santa clauss
scheduled train
shopbreaking
simple trestle
spathiphyllum
spherical viscoelastic film
stopbank
sulphinides
superfruits
switching regulator
technoentrepreneurship
tetraacetyl-glucose
textualism
todays
trinities
triple tandem quadrupole instrument
turbinevalve
unmistrusting
Wallace, Mike
Wanner optical pyrometer
wrinkle finish
zero-temperature equation of state