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(164) / 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(154) / 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(49) / 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(55) / 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(66) / 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(80) / 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(47) / 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(102) / 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(73) / 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(65) / 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(49) / 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(112) / 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(42) / 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(105) / 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(112) / 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(66) / 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(60) / 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(71) / 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(77) / 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(46) / 评论(0) 分类 托福英语
学英语单词
.cgi
abigge
Aconitum kusnezoffii Maxim.
acute miliary tuberculosis of the skin
alimonied
antonelli
astronantics
blood vessels of tooth
book cases
bowel incontinence
cameraderie
carry the banner
centralized engine room control system
chiminea
class B power amplifier
compensating surface current
complexometry
control record
couch board
cutting groove
Dalavatn
detached caustic soda
dishono(u)rable
durchkomponierts
enervoxe
environmental monitoring program
Euphranor
experimental sedimentology
expleite
exteroreceptor
fachada
family gerrididaes
faropenem
feminasties
file browser
fluorine-containing polymer
forced concrete mixing plant
foreign currency quota
fracture instability
frequency discriminator
genetic variability of offender
genus spirogyras
geosynchronous earth orbit (geo)
godfather
going part
HDDT
head driver
hematoxilin
high-speed line printer
hot test loop
internal damping losses
Juglans regia
jury masthead hitch
kokubumycin
laulau
length contraction
load bridging resistor
materials transfer
menorahs
midas touches
milkmaid's yoke
mine money
mother sporocyst
multipledrill
mytholmroyd
N. S. C.
neurosyphilitics
neutral tint
nip points
nonnumeric coding
normally closed push button switch
oil property tax
ovarian mixed epithelioma
overemphasise
pelvic presentation
physical geographies
ping
Practise what you preach
Pteromedusae
puncture headache
rbm (rod block monitor)
reduce the establishment
relatively boundary
renal veins
response register
Risan
rush nut
sarcomatus goiter
semirigid cable
set type entry
snowsurfing
Stanos
stroke device
take a trip down memory lane
Taskino
thumb-operated control stick
tobacco plants
Tousnina
unberth passenger
urorectal membranes
US Naval Academy
whiff of grapeshot