高损耗光纤

UNIT 5 Text A PRE-READING TASK Exercise 1 Before reading the passage, try to answer the questions. 1. How much do you know about the Internet? 2. What do people usually do on the Internet? 3. What has

发表于:2018-12-11 / 阅读(115) / 评论(0) 分类 实用英语综合教程

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Athletes have obviously been tempted to use performance enhancing anabolic steroids. Drug testing may discourage such use. But a new study finds that some of the perfo

发表于:2018-12-24 / 阅读(91) / 评论(0) 分类 Scientific American(九)月

Your nose may be the first place you think of as a source of mucus. But mucus is a major player in your gut, too. There's antimicrobial peptides and proteins that are present in there. Bacteria live in there and forage on the carbohydrates. And it's

发表于:2018-12-24 / 阅读(71) / 评论(0) 分类 2016年Scientific American(十一)月

Two pilots recently set a new altitude world record for gliders. A glider is an aircraft that does not have an engine. They are pulled into the air by powered airplanes and then released. They are designed to ride warm, rising air to gain altitude. T

发表于:2019-01-03 / 阅读(192) / 评论(0) 分类 2017年VOA慢速英语(九)月

By Melinda Smith Washington, DC 24 January 2007 watch Diet report Trying to lose weight can be challenging and confusing, because there are so many different diet plans competing for attention. Low fat, or low carbohydrates, or high fiber? It's hard

发表于:2019-01-07 / 阅读(91) / 评论(0) 分类 2007年VOA标准英语(一月)

Dieting isnt always easy, particularly if you have a sweet tooth. But by adding strawberries to your diet, you can enjoy a range of guilt-free dishes, drinks and snacks any time of day. Best of all, strawberries are low in calories, high in fiber, fa

发表于:2019-01-08 / 阅读(81) / 评论(0) 分类 阅读空间

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(107) / 评论(0) 分类 2007年VOA标准英语(九月)

Eat Nuts to Stay Healthy 吃坚果有助保持健康 From VOA Learning English, this is the Health Lifestyle report. People have long known that nuts are part of a healthy diet. However, scientists in the Netherlands recently found that you do not ne

发表于:2019-01-12 / 阅读(57) / 评论(0) 分类 2015年VOA慢速英语(七)月

By Melinda Smith Washington 18 July 2007 We are going to find out about two studies on breast cancer. One studied whether a diet very high in fiber and low in fat could reduce the risk of recurring breast cancer. Another study focused on women with a

发表于:2019-01-12 / 阅读(124) / 评论(0) 分类 2007年VOA标准英语(七月)

High-Tech Edge Sharpens Olympic Games At the very first Olympic Games, in 1896, an American won a gold medal in the pole vault event after jumping 3.30 meters using a wooden pole. Four years ago in Beijing, an Australian won gold in the same event wi

发表于:2019-01-13 / 阅读(99) / 评论(0) 分类 VOA标准英语2012年(七月)

DRC Misses Deadline for High Speed Internet Officially, the Democratic Republic Congo is about four months behind schedule to connect to the West African Cable System (WACS). This is not the first time the DRC has missed out on a high speed Internet

发表于:2019-01-13 / 阅读(87) / 评论(0) 分类 VOA标准英语2012年(五月)

以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议: 1、完整听一遍,掌握大意。 2、继续听,特

发表于:2019-01-22 / 阅读(91) / 评论(0) 分类 NPR边听边练

LOS ANGELES, March 27 (Xinhua) -- Walnuts have a combination(综合) of more healthful antioxidants and higher quality antioxidants than any other nut, U.S. researchers have found. Study findings were presented on Sunday at the 241st National Meeting

发表于:2019-02-02 / 阅读(54) / 评论(0) 分类 英语新闻

Here are some facts about sweet potatoes you probably don't know: 这里有一些关于红薯你可能还不知道的事实: Sweet Potatoes Originated in the Americas 红薯起源于美洲 They're in the family of plants that includes morning glori

发表于:2019-02-02 / 阅读(62) / 评论(0) 分类 阅读空间

Chinese firm FiberHome has developed a type of optic fiber that can transmit 400 terabytes of data per second, breaking the world record for the amount of data that can be transmitted on optic fibers, the company said. 中国公司烽火通信近日表

发表于:2019-02-07 / 阅读(93) / 评论(0) 分类 英语新闻

BEIJING, Aug. 24 (Xinhuanet)-- A new study shows that a diet rich in cholesterol-friendly foods, such as soy products and tree nuts, can decrease LDL (bad) cholesterol significantly, according to media reports on Tuesday. The study, published in the

发表于:2019-02-08 / 阅读(116) / 评论(0) 分类 英语新闻

BEIJING, Dec. 2 (Xinhua) -- Three-time NBA All-star Gilbert Arenas missed a head-to-head clash with seven-time All-star Tracy Mcgrady in the fourth round of the Chinese Basketball Association (CBA) league on Sunday. Arenas was benched for groin strai

发表于:2019-02-08 / 阅读(97) / 评论(0) 分类 英语新闻

Pre-Listening Vocabulary habitat: the place where living things live extinction: the state of no longer existing threatened: facing a possible risk of extinction 24/7: all day and night; at all times human intervention: the involvement of humans Habi

发表于:2019-02-08 / 阅读(143) / 评论(0) 分类 Facts-事实

QINGDAO, Shandong, Dec. 26 (Xinhua) -- China's largest rail vehicle maker, CSR Corp. Ltd, over the weekend launched its first test train that features speeds reaching up to 500 km per hour. The six-car train with a fairshaped head is the newest in th

发表于:2019-02-25 / 阅读(95) / 评论(0) 分类 英语新闻

After years of sorting foods out, measuring the amount of vitamins, minerals, nutritional content and health benefits, scientists and nutritionist now know which are the healthiest foods for our diets. 经过多年对各种食物分类,计算食物中

发表于:2019-02-26 / 阅读(168) / 评论(0) 分类 阅读空间
学英语单词
adenocarcinoma of cervix
aerial perspective
after-theater
air-depot
aliphatic amine
Aousift
apical teeth
apiculus
application controller
arm of the sea
asbestos asphalt layer
astromechanics
bat-man
bloc voting
blue radiation
boiler acidity
boundary condition for electromagnetic field
buldozer
caffeine carbolate
calibration diagram
certificate revocation
cherrypickers
cold ribbon feed
coldcounsel
complex carbohydrate
contact encoder
crotonic nitrile
cryptometer
dessayse
dialectical anthropology
door-band
drum motor driver
ef-in'
elastorheodynamic
Eventrated
fall of current
feed adjustment
gooney
greasegrass
habeas corpusing
hemigaleid
Hugh the Great
humoral immune function
input logic
intersystemic
Java screwpine
jayhawkers
kin group
LAN segment
langhorne
leak path
lettergrams
littoral vegetation
lossing condition
Lunanhead
Lyot depolarizer
malvina hoffmen
methoxy-p-cresol
Microhoo
moment area method
Neanotis thwaitesiana
open files
Opisthorchis sinensis
opss
osmeteria
over-all load
packing away
passepartout
permanent mooring system
Phenadon
pinned her ears back
reading-desks
realization and liquidation profit and loss
remote unmanned work system
replacement control
royalex
sclerotic ring
SD Memory Card
sea lettuces
Seiurus aurocapillus
Shicomycin
sloe
soap perfume
spirit gauge
subvertise
survey of production value on transport and storage industries
swallow-tailed hawk
taahira
tailor made
temporary admission
tonoplast
topotaxial factor
two-tier wage system
tzar
unsaturated alkyd resin
Wabern
Waitrose
wall mustard
weleful
which is
winghams
woody headframe