渐进遗传

Editors note: This is the third episode of four-part series on verb tenses. Be sure to listen to part one and part two first. For VOA Learning English, this is Everyday Grammar. Today we are going to talk about the perfect verb tenses. Perfect tenses

发表于:2018-11-27 / 阅读(546) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Controling Cancer There are two main causes of cancer: heredity and environment. We can do nothing to change our heredity, that is, the basic physical characteristics that are passed on to us by our parents. However, we can do a great deal to control

发表于:2018-12-01 / 阅读(271) / 评论(0) 分类 大学英语六级听力短文

Lesson 82 monster 怪物 Fishermen and sailors sometimes claim to have seen monsters in the sea. 渔夫和水手们有时声称自己看到过海里的妖怪。 There are lots of stories about ghosts and monsters. 有许多关于牛鬼蛇神的故事。

发表于:2018-12-08 / 阅读(677) / 评论(0) 分类 新概念英语词汇随身听手册2

DAVID GREENE, HOST: Here's a trend. Far more Democrats are describing themselves as progressive these days than they did four years ago. There are strategic reasons candidates are embracing this label. But one major reason, as NPR's Asma Khalid repor

发表于:2018-12-18 / 阅读(159) / 评论(0) 分类 2018年NPR美国国家公共电台10月

Controling Cancer There are two main causes of cancer: heredity and environment. We can do nothing to change our heredity, that is, the basic physical characteristics that arepassed on to us by our parents. However, we can do a great deal to control

发表于:2018-12-30 / 阅读(151) / 评论(0) 分类 英语六级听力练习集锦

[0:0]private privilege probable procedure私人的,个人的 特权,优惠 很可能的,大概的 程序,手续 [2:10.9287]proceed process进行,继续下去 过程,进程 [2:34.8387]procession product profession profile队伍,行列 产品,产物 职业,自由职业 侧面,轮廊 [3:25.

发表于:2018-12-30 / 阅读(219) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

Editor's note: See An Introduction to Verb Tenses for the first story in this series. For VOA Learning English, this is Everyday Grammar. This is the last in our four-part series on verb tenses. Make sure you see our episodes on progressive and perfe

发表于:2019-01-02 / 阅读(204) / 评论(0) 分类 2017年VOA慢速英语(一)月

By Ed Warner A group of young Muslims - pious, intense, hostile -- made Haitham Bundakji, the mosque chairman, uneasy. Isolated from other worshippers, they criticized him for wearing western clothes,

发表于:2019-01-03 / 阅读(217) / 评论(0) 分类 VOA2004(下)--时事新闻

What Can Thanksgiving Teach You About English Grammar? Every year around the Thanksgiving holiday, a strange ceremony happens in Washington, DC. The president stands outside the White House, gives a brief speech and then officially pardons a turkey.

发表于:2019-01-03 / 阅读(176) / 评论(0) 分类 2016年VOA慢速英语(十一)月

角化与萎缩性皮肤病 毛囊角化症 dyskeratosis follicularis Mibelli汗孔角化症 porokeratosis of Mibelli 剥夺性角质松解症 keratolysis exfoliativa 掌跖角化症 keratosis palmari

发表于:2019-01-03 / 阅读(219) / 评论(0) 分类 医务英语

VIRGO August 24 to September 23 The Virgo person is a good partner. He is painstaking, meticulous, intelligent and progressive. He is not progressive in a great sense, but in small ways he is ever willing to try the new and novel. He is modest, unass

发表于:2019-01-03 / 阅读(145) / 评论(0) 分类 趣味英语

The Perfect Progressive Tenses Editor's note: See An Introduction to Verb Tenses for the first story in this series. For VOA Learning English, this is Everyday Grammar. This is the last in our four-part series on verb tenses. Make sure you see our ep

发表于:2019-01-12 / 阅读(249) / 评论(0) 分类 2016年VOA慢速英语(一)月

Are You Progressing with Progressive Tenses? Editors note: This is the second of a four-part series on verb tenses. Click here to see part one. For VOA Learning English, this is Everyday Grammar. Today we are going to look at the progressive verb ten

发表于:2019-01-12 / 阅读(217) / 评论(0) 分类 2016年VOA慢速英语(一)月

Introducing English Verb Tenses Editors note: This is the first of a four-part series on verb tenses. Click here for part two. For VOA Learning English, this is Everyday Grammar. Today we are going to give you a basic overview of the verb tense syste

发表于:2019-01-12 / 阅读(381) / 评论(0) 分类 2016年VOA慢速英语(十二)月

STEVE INSKEEP, HOST: Richard Cordray was expected to be unbeatable in tomorrow's Ohio Democratic gubernatorial primary. The former head of the Consumer Financial Protection Bureau has high-profile name recognition and support from powerful people in

发表于:2019-01-16 / 阅读(222) / 评论(0) 分类 2018年NPR美国国家公共电台5月

Sometimes theres a topic that doesnt quite defy explanation but certainly gives one pause in the undertaking. Lucky usthats where we find ourselves today. Why gerunds take a possessive before them. Oy. What's a Gerund? Lets start with what a gerund i

发表于:2019-01-30 / 阅读(268) / 评论(0) 分类 英语语法 Grammar Girl

访谈录,高清电视,选购,指南,We are at the Georgia Home Theater in Atlanta and if you are in the market for a new high definition or HDTV, it's easy to get overwhelmed by the letters and the numbers in the sales picture, so we ar

发表于:2019-02-03 / 阅读(293) / 评论(0) 分类 访谈录

STEVE INSKEEP, HOST: You know, when I was a kid, I watched pro wrestling on TV. The matches often featured a good guy, like Hulk Hogan, against a bad guy, a bad guy like the Iron Sheik, a cartoonish Middle Eastern evil dude. Pro wrestling played off

发表于:2019-02-13 / 阅读(204) / 评论(0) 分类 2017年NPR美国国家公共电台7月

The two remaining Democratic presidential candidates, former Secretary of State Hillary Clinton and Vermont Senator Bernie Sanders, held a tense and angry debate Thursday night in New Hampshire, days before the Northeastern state holds the nation's f

发表于:2019-02-18 / 阅读(186) / 评论(0) 分类 英语新闻

On June 4th, a volcano in southern Chile erupted, sending volcanic ash into the air. The large particles of ash soon dropped to the ground but the small particles were carried, high in the air, by the westerly wind to Australia and New Zealand. This

发表于:2019-02-25 / 阅读(150) / 评论(0) 分类 新西兰英语
学英语单词
acetylisoeugenol
amantadines
analgesic
Apamea
appanages
area identifying number
at-railhead
at-tention
bathytoma luhdorfi
beautiful morning
bird rape
blame-game
bony defect
boy-man
broad-leaved twayblades
CDPV
chameleonlike
choledochoduodenal junction
chunner
conglobating
containment heat removal system
contractual specification
control system structure
core-setting gauge
corycavidine
cwtch
dandified
discounts
discriminative condition
economic welfare
electrostatic force microscopy
engine-room emergency bilge suction valve
feelness
field techniques
forktail
free flight angle
frequency-modulated sound
fusil
fuzzy space partition
geometric effect
gradient curve
grigorian
High Halden
image-forming ultrasonic microscope
incidence of crime
isogermidine
krunks
laundry room
lissomest
livestock anatomy
losing rate
magnetic energy density
meat pounder
metabolises
microprogram control section
mikulicz's cell
moist surface
morin khuur
multivalve turbine
nearly perfect crystal
neutron monochromator
normalized number
ntaryamira
olusatrum
ooh la la
open reel tape
palmate feet
peraluminous
performance data
persona grata
pledge one's troth
pleochroic filter
Portmore
postdoctorates
pruning of green branches
Pyeongchanggang
ramp reactivity insertion
roundness
running-board lamp
scientest
sea slaters
self-organizing large information dissemination
serrated disc
sertularias
several issues
sheet mineral
sherryvallies
sphagnodyt
stotland
straight-edge bobbin
supercontrolled
three wire meter
thrust line adjustment
toe the party line
Tome's
tube neck
ungul
variable profit
w.p.a
wedge wire cloth
wively
zohars