动植物的温度

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(229) / 评论(0) 分类 新东方背诵文选

zero [the number meaning none or nothing] One minus one equals zero. zoo [a place where animals are kept for the public to look at and study] We saw the new panda at the zoo.

发表于:2018-12-01 / 阅读(128) / 评论(0) 分类 VOA慢速英语1500基础单词例句

[00:02.09]第六单元 课文A [00:04.18]Diamonds [00:05.96]金刚石 [00:07.73]Diamonds are rare, beautiful, and also quite useful. [00:10.81]金刚石是稀有物质,美丽,并且有使用价值。 [00:13.90]They are the hardest substance found in nature. [00:16.27]金刚石

发表于:2018-12-04 / 阅读(79) / 评论(0) 分类 大学英语自学教程上

AGRICULTURE REPORT -January 8, 2002: Composting By Gary Garriott This is the VOA Special English AGRICULTURE REPORT. Many farmers around the world are composting to improve their soil so they can prod

发表于:2018-12-07 / 阅读(49) / 评论(0) 分类 农业与发展

By Gary Garriott Broadcast: July 22, 2003 This is Robert Covent with the VOA Special English Agriculture Report. Many farmers around the world are 1)composting to improve their soil so they can produc

发表于:2018-12-07 / 阅读(91) / 评论(0) 分类 VOA2003(下)-农业与经济

[00:04.78]Lesson 45 Dialogue [00:10.34]Eric,an Englishman,is visiting Charlie in the USA. [00:16.61]CHARLIE:How long are you planning to stay over here? [00:20.66]ERIC:I've got three weeks altogether.What do you suggest I see? [00:26.72]CHARLIE:What

发表于:2018-12-13 / 阅读(126) / 评论(0) 分类 高中英语人教版高三

[00:07.00]1 Listen to the tape and fill in the correct information in the spaces below. [00:15.15]1.Walk along the street of any major city, [00:21.32]and you will see that the air you breathe is not very fresh. [00:27.27]Air pollution is a serious p

发表于:2018-12-13 / 阅读(168) / 评论(0) 分类 高中英语人教版2000年高一

[00:02.90]The world around us [00:06.45]LISTENING [00:09.20]1 Listen to the tape and fill in the correct information in the spaces below. [00:17.37]1.Walk along the street of any major city, [00:23.54]and you will see that the air you breathe is not

发表于:2018-12-13 / 阅读(144) / 评论(0) 分类 人教全日制普通高中英语(必修)高一

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Every expecting mother gets asked the question: boy or girl? For mammals like us, its an easy call. Two X chromosomes you get pink booties. X and a Y you g

发表于:2018-12-24 / 阅读(160) / 评论(0) 分类 Scientific American(一)月

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37C; a departure of a few

发表于:2018-12-30 / 阅读(74) / 评论(0) 分类 考研背诵50篇

本讲为2006年下半年新的教学内容,请对照讲义听声音! Students(researcher/scholar) of Nature are not satisfied with guessing, but they observe, day after day, the changes which tak

发表于:2018-12-30 / 阅读(88) / 评论(0) 分类 自考英语(一)78讲

1. If we did not have air, there would be no sound. Without air, there would be no life. 2. not…but… 不是 … 而是 … 连接并列状语 eg: In the past three years, he did not study for his

发表于:2018-12-30 / 阅读(77) / 评论(0) 分类 自考英语(一)78讲

(woman) Before I tell you about the interesting discovery related to Tyrannosaurus rex, I need to review something we studied last semester --- the difference between what are commonly called cold-blooded and warm-blooded animals. In warm-blooded an

发表于:2018-12-30 / 阅读(53) / 评论(0) 分类 托福听力短文

英语短文:Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra

发表于:2019-01-08 / 阅读(88) / 评论(0) 分类 英语小短文

This is the VOA Special English Agriculture Report. Today we talk about tomatoes. Tomatoes are generally easy to grow. Experts at the University of Illinois Extension suggest you start seeds indoors if the ground is still cold. For best results with

发表于:2019-01-11 / 阅读(67) / 评论(0) 分类 VOA慢速英语2009年(三)月

Glacier Bay: A Land Reborn This week in our travels through Americas national parks, we revisit the state of Alaska. The northernmost state is home to eight major national parks. Today, we visit one of its most famous parks Glacier Bay. This huge par

发表于:2019-01-12 / 阅读(108) / 评论(0) 分类 2016年VOA慢速英语(十一)月

As Hong Kong struggles to build an environmentally friendly city, one professor is studying ways to help cut carbon emissions and lower electricity usage by covering the city's rooftops with plants. Jim Chi Yung, a geography professor at the Universi

发表于:2019-01-13 / 阅读(99) / 评论(0) 分类 VOA标准英语2010年(八)月

With all the concerns about global warming and climate change one might ask the question, Why don't species just adapt? Don takes the devil's advocate position and discusses this with Yael. D: Yael, we know global warming is bad, right? I mean, the t

发表于:2019-01-22 / 阅读(66) / 评论(0) 分类 英语时差8,16

This is the VOA Special English Agriculture Report. Today we talk about tomatoes. Tomatoes are generally easy to grow. Experts at the University of Illinois Extension suggest you start seeds indoors if the ground is still cold. For best results with

发表于:2019-01-31 / 阅读(77) / 评论(0) 分类 2010年慢速英语(三)月

Well, mushrooms are merely one of many types of fungi. Not all fungi grow in soil. However, mushrooms and other fungi do resemble plants in many ways, so much so that scientists long classified fungi plants, but they know better now. Eating Habits Wh

发表于:2019-02-24 / 阅读(77) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
accident enquiry
anchoring construction
andrzejs
anonymisers
basidiospore
bone-shaped starch
Boolean unit
brine cooling fish tank
broncho-vaxom
capersome
case rotating shutter
Cate.
charge exchange interaction
Chkalovsk
chloramphenicon
cincinnatus
clauss
click fraud
contact drier
crypto-censorship
cut image range finder
daysone
dialing dial-up
downconverting
drives up the wall
eductive
egil
Emanatism
enclitic
fire-spark arrester
firstclass
Foulsham
Frith.
fuel cell
fuel damage experience
gains point
gas at high pressure
glyceric acid-1,3,-diphosphate
Grand Harb.
Granitovo
handmicrotelephone
hemicephalia
histolyticas
industrial tissue
inverting lens
Khanh Son
kinetics of machinery
Kline flocculation test
lentectomy
marinaras
medical-supply
methothalistyline
micotinamide
Mitterfels
mot d'ordre
multiphase charge-coupled device
multiwhirl heat exchanger
nephric tubuli
Nerussa
no claims
notional insanity
nut lock(ing)
octendioic acid
off grade metal
overloved
parater-butylphenol
peripheral trunk
permanent storage area
pitaji
plate budding
ruptured membrane
saintpaulias
sandbox bottom
Sdiff
shoshonite series
spark stick
St-Lon-les-Mains
stage frights
Sulfogal
swear the peace against
tank cleaning piping
teletext broadcasting
temperature transient
tetritol
thalamomamillary bundle
through-flow parts
tight-lacing
trespassest
Trichobilharzia ocellata
trichostomum brachydontium bruch
two-course concrete pavement
type 2 system
umbeswey
under agent
unicolorate
vacuum canister seals
vent outlet
vessel clip applying forceps
vocational facilities
wafer process
warrant policy
white porcelain tile