原始地球

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(314) / 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(307) / 评论(0) 分类 决胜六级英语听力

September Equinox 秋分 We have an equinox because an imaginary plane extending outward from Earth's equator isn't the same as the plane of Earth's orbit around the sun. Learn more about today's equinox -- on Earth and Sky.. JB: This is Earth and Sky

发表于:2018-12-07 / 阅读(266) / 评论(0) 分类 (科普英语)Earth and Sky

美国航天局倾力寻找生命之星 For decades, looking for life elsewhere in the universe meant listening for signals that could be from distant civilizations. But recent breakthroughs in space technology refocused some of that effort toward fi

发表于:2018-12-19 / 阅读(245) / 评论(0) 分类 VOA双语新闻 2014年7月

Fossils found at Weng'an in Guizhou Province are regarded as the oldest ones to be found in the country, if not the world. Recently, a group of paleontologists gathered at the site to call for more protection of animal fossils that could provide clue

发表于:2018-12-19 / 阅读(179) / 评论(0) 分类 2017CRI中国国际广播电台

Section (B)Changes in the Balance of NaturePerceptions are relative. A single tree may seem large compared to a person. If you compare it to a mountain, however, thelarge tree seems small. In other words, things in nature are large or small, new or o

发表于:2018-12-29 / 阅读(183) / 评论(0) 分类 新视野大学英语读写教程(3)

[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(198) / 评论(0) 分类 英语四级听力练习集锦

Is There Life on Mars? For most of the 20th century, there has been life on Mars. Or, at least in the minds of the Earthlings, who inhabit its closest planetary neighbor. When at the end of the 19th century, the American astronomer Percival Lowell th

发表于:2018-12-30 / 阅读(178) / 评论(0) 分类 英语流行话题阅读:语境识词4500

Long before the land grew roads and towns, long before the first Westerners arrived, long before humans here even had a word for art, the rock artists of Australia were drawing the Dreamtime. The Dreamtime for the aboriginal people is their story of

发表于:2018-12-30 / 阅读(289) / 评论(0) 分类 国家地理2008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(198) / 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(199) / 评论(0) 分类 大学四六级阅读

NASA Focuses on Earth-Like Planets 美国国家航空航天局寻找类地行星 For decades, looking for life elsewhere in the universe meant listening for signals that could be from distant civilizations. But recent breakthroughs in space technolog

发表于:2019-01-14 / 阅读(166) / 评论(0) 分类 VOA标准英语2014年(七月)

Long before the land grew roads and towns, long before the first Westerners arrived, long before humans here even had a word for art, the rock artists of Australia were drawing the Dreamtime. The Dreamtime for the aboriginal people is their story of

发表于:2019-01-22 / 阅读(190) / 评论(0) 分类 自然百科2008年

It's clear from the fact that the Martian crust is strongly magnetized, that there must have been a magnetic field on Mars in the past, that the only way we know to magnetize rocks is for them to form in the presence of magnetic field. Why did Mars l

发表于:2019-01-22 / 阅读(184) / 评论(0) 分类 自然百科2011年

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(236) / 评论(0) 分类 阅读空间

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(196) / 评论(0) 分类 美国俚语

We might not be alone in the universe. Actually, it may be confirmed as a very crowded place by new computer models developed to help identify habitable planets. Estimates of places that can sustain life have been based on the likelihood of them havi

发表于:2019-02-13 / 阅读(147) / 评论(0) 分类 英语听力精选进阶版

As one leading biology text puts it, with perhaps just a tiny hint of discomfort, 正如一篇重要的生物学文章所说,说得也许有点儿令人不大舒服: Researchers agree that such reactions would not have been energetically favorabl

发表于:2019-02-17 / 阅读(175) / 评论(0) 分类 万物简史

WASHINGTON, Dec. 22 (Xinhua) -- The journal Science on Thursday chose the HPTN 052 clinical trial, an international HIV prevention trial as the 2011 Breakthrough of the Year. The study found that if HIV-infected heterosexual individuals begin taking

发表于:2019-02-18 / 阅读(213) / 评论(0) 分类 英语新闻

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(192) / 评论(0) 分类 阅读空间
学英语单词
3-phenyl-2-thiohydantoin
aerating process
against vote
agrill
Alioth
all-transistor
ammonium polyoxyethylene lauryl ether sulfate solution
anisomorphism
anti-freeze compounds
aspden
axially symmetrical radiator
bio-defense
buffer base
car lock
cataractogenic
cerebrose brain sugar
chatham is.
colored audition
colour difference sensitivity
competition psychology
complementary transistor
craftsman-style
datum diameter
DC locomotive
decemfid
disorganisation
dual action pump
duodenojejunal flexure
elaborated code
evolutionary program link procedure
farfel
Federal securities
fibrose phthisis
filelength
FLORINEF
glycoaldaloid
guidancecheckout package
half sibling
harcelet
historiographic
Hollerith data
IBTs
impack
impressivenesses
injection locking
intercommoning
Islamic Republic of Iran
Japanese jawfish
lexical substitution
lymphoglandulae
margarine emulsion
material balance reports
maxmun field capacity
Menominee whitefish
metoo
microphone mouthpiece
Mill Hill Vocabulary Scale
Mohr's strength theory
mothball
Mukebo
Mustela vison
Natronsanidine
neodymium acetate
network switch
noise mitigation
obsolete checkpoint
old wine in a new bottle
optimum pure predictor
paleoproxies
peteous
phacocele
polyangles
polyoxypropylene propyleneglycol ether
practising certificate
put in a claim for sth.
recist
recombinant dna technologies
recurring profit
reflective coating
rostratula benghalensis
Santa Comba de Rossas
Schiavi di Abruzzo
sequence of reactions
sesquicitronellene
shoegasms
shuttering mark
soda ash roaster
Soretol
stereoscan examination
stiffened shell
Sunipia annamensis
T-crossing
taper on radius
tetartohedral class
three-component geophone array
undular bore
velocity plane
wire straightening and cutting off machines
with malice
xeric environment
Yours Ever yours
yungang