原始无脊椎动物

The story of how we have systematically observed the heavens begins in the days before recorded time. For primitive man, the sun reigned supreme. Its recurring cycles of light and darkness formed the

发表于:2018-11-28 / 阅读(252) / 评论(0) 分类 疯狂英语2001年

Section A [00:02.90]1. M: We've got 34 on the list so far [00:08.75]but I'm sure it'll be up in the forties before we finish. [00:13.90]W: Well,in that case a sit-down dinner is out of the question. [00:19.15]It'll have to be a buffet. [00:22.80]Q: W

发表于:2018-12-01 / 阅读(250) / 评论(0) 分类 决胜六级英语听力

What little we know of them comes almost entirely from eavesdropping on their songs, but even these are a mystery. 我们对它们的一点了解,儿乎完全出自我们偷听到的它们的叫声,而连那个也还是个谜。 Blue whales will

发表于:2018-12-07 / 阅读(130) / 评论(0) 分类 万物简史

Based on the sheer number of ants that invaded my home this summer, it seems hard to believe, but a new study finds that the numbers of invertebrates, which include any animal without a spine, has fallen by nearly half over the past thirty-five years

发表于:2018-12-24 / 阅读(124) / 评论(0) 分类 2014年Scientific American(八)月

This is Scientific Americans 60 second Science, I am Christopher Intagliata, got a minute? You've probably seen clouds of insects swirling round a streetlamp at night. But something you may not have noticed is that streetlights attract bugs to the gr

发表于:2018-12-24 / 阅读(134) / 评论(0) 分类 Scientific American(五)月

[00:00.00]1.W:Do you have a calculator that you could lend me for a few days? [00:06.11]I just have no idea where mine is. [00:10.27]M:Well,yes,I have one.But actually my sister is using it now. [00:16.33]Q:What do we learn from this conversation? [0

发表于:2018-12-30 / 阅读(157) / 评论(0) 分类 英语四级听力练习集锦

An irreverent attitude from inverse to irreversible Smithers, dont you think its ironic that your irregular night-time activities are in inverse proportion to your reputation as an expert in the area of invertebrate research? the director of the aca

发表于:2018-12-30 / 阅读(117) / 评论(0) 分类 胡敏托福词汇记单词

Here in the Timor Sea off northern Australia, take a look at a creature that seems to have the soul of a riverboat gambler. It moves through turf dominated by large hungry predators, and it fights these predators in a way that will astound you. This

发表于:2018-12-30 / 阅读(185) / 评论(0) 分类 国家地理2007年

Xishuangbanna is the southernmost prefecture of Yunnan Province. The prefecture is nicknamed Aerial Garden for its luxuriant and multi-layered primitive woods and tropical rain forests, which are teeming with animals and plants. Renowned as a huge na

发表于:2019-01-08 / 阅读(152) / 评论(0) 分类 旅游英语

1.The Bushmen are _______ hunters even though their weapons are primitive. A.favourite B.original C.sufficient D.expert 2.Before he left the White House, the president made a _______ speech. A. quarrel B.symbol C.automobile D.farewell 3.The local gov

发表于:2019-01-08 / 阅读(155) / 评论(0) 分类 大学四六级阅读

Worms Get Ready to Fly in Space 蠕虫准备在太空中飞行 Humans are well-equipped for life on Earth. But in space, it is a different story. Low or zero gravity changes how the blood flows and causes motion sickness, muscle loss and tiredness. W

发表于:2019-01-12 / 阅读(123) / 评论(0) 分类 2015年VOA慢速英语(三)月

Minivan-sized Sponge Found off Hawaii Coast 夏威夷海岸发现巨型海绵动物 It might be hard to imagine, but scientists found a sponge the size of a minivan in deep waters near the Hawaiian Islands. 或许难以想象,科学家在夏威夷群

发表于:2019-01-12 / 阅读(189) / 评论(0) 分类 2016年VOA慢速英语(六)月

Humans Driving Massive Animal Extinction Earth is in the midst of its sixth mass extinction of animal species -- the first to be caused by humans -- in the past half-billion years, setting off a downward spiral in the environment and human health, wh

发表于:2019-01-14 / 阅读(118) / 评论(0) 分类 VOA标准英语2014年(七月)

Time is running out for my friend. While we are sitting at lunch she casually mentions she and her husband are thinking of starting a family. We're taking a survey,she says, half-joking. Do you think I should have a baby? It will change your life, I

发表于:2019-02-04 / 阅读(198) / 评论(0) 分类 阅读空间

extinction n. 消失,消灭 extinguish vt.消灭,熄灭 falcon n.[动](猎鸟用的)猎鹰 fall victim to 成为...的牺牲品 far-sighted founders 具有远见的奠基人 fig n. 无花果 firew

发表于:2019-02-05 / 阅读(196) / 评论(0) 分类 英文语法词汇

如果嫌要发短信的内容长,不方便交流,费时费力,你建议对方打电话,可以说Let's go primitive。primitive的意思是原始的,go primitive就是采用原始的方式,显然电话比短信出现的早,相比之下就

发表于:2019-02-09 / 阅读(153) / 评论(0) 分类 美国俚语

Chimps do it. Dolphins do it. Even crows that want to catch fish do it. But an octopus? Yes, it seems the smartest member of the invertebrate world has learned how to use a tool. Octopuses have a reputation for being clever. They can figure out how t

发表于:2019-02-15 / 阅读(145) / 评论(0) 分类 英语时差8,16

HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: After days of negotiations for a prisoner exchange apparently broke down, ISIS today reportedly executed a Japanese journalist it had been holding hostage in Syria. Just last weekend, ISIS also beheaded

发表于:2019-02-17 / 阅读(160) / 评论(0) 分类 PBS访谈社会系列

No Gym. No Problem Maybe its too expensive. Maybe youre too shy. Some people just plain do not like the gym. It can be boring, intimidating, and it can seem somewhat redundant. The good news is theres another way. Sports! Here well take a look at wha

发表于:2019-02-18 / 阅读(152) / 评论(0) 分类 阅读空间

托福听力背景知识:托福听力中有大量的专业及学术词汇,这些词汇大多依托于听力背景知识,如果考生能够事先了解一些托福听力的背景知识,对听懂听力对话及段子有很有帮助。 Darvinism

发表于:2019-02-18 / 阅读(136) / 评论(0) 分类 托福英语
学英语单词
affluency
artificial intellegence
back-scatter peak
basic pulse repetition interval
bell key
bell-shaped suspension insulator
Burgdorfer
campylopus blumii besch. et lac.
colicweed
collector to-base current gain
copper-constantan temperature
counter-machination
crap hat
cut a curvet
death-metal
digital regulating instrument
donko
eat one's terms
electronic form system
emerald malachite
enamel reactor
eotvos(e)
episulfide
farland
fire-danger meter
formation volume factor
fountain-of-youth
frank stocktons
free of tax
funeral director
Goltz, Baron Kolmar von der
hardwood-tar pitch
Heliangelus
helodium
home-all
hydroxyphenylpyruvic acid
hysteresiscope
imint
incorrumptibiletee
ipes
Itapevi
j.fox
jehiel
kitschy
Kolyuchaya, Gora
lekan
lesser doxology
locheil
majorities
melting cup
meningomyocele
mineralogists
MJs
Monliformis
mycoid
neck up
o'haras
once-stable
Oratorio San Antonio
outside shell
peaceniks
Penfiuridolum
pentanitride
perineal rupture
phase leading
pivoting window
plexogenic
pointy hat
practitionership
precision optical instrument
pressurized equipment
psychodiagnostics
put words into one's mouth
Rabdosia enanderiana
radiation processing reactor
redus
remote journaling
rete mirabile cerebrale
review of the literature
secure computer network
seedplot
short-term investments-corporate bonds
skolexerose (scolexerose)
slack on
stage setting
supposition theory
syntonies
system restoration
taitungensis
take sb for a fool
temporal ccortex
temporary submergic paddy soil
tin(ii) iodide
underhoused
unsoapy
Urticaceae
us up
water mole
western churches
X-ray background radiation
Zissman