音标:[ˈvɛriəbəl pɪtʃ prəˈpɛlɚ] ;
可调螺距螺旋
词型变化:名词复数形式 : variable-pitch propellers

Exercise 1 -14: Make a Variable Stress Sentence CD 1 Track 21 Now you decide which words should be emphasized. Write a normal, everyday sentence with at least seven words and put it through as many changes as possible. Try to make a pitch change for

发表于:2018-11-30 / 阅读(229) / 评论(0) 分类 美语口音训练第一册

3 Listen carefully to the conversations and short passages [00:07.99]and choose the best answer to each of the questions. [00:13.56]1.A)She is pitiful. B)She is too shy to apply. [00:33.41]C)They are afraid of her. D)She is intelligent. [00:41.27]2.(

发表于:2018-12-01 / 阅读(345) / 评论(0) 分类 大学六级听力模拟题

France's Finance Minister Christine Legarde will become the first woman to lead the International Monetary Fund. She was elected today with the backing of the world's major economies. The changes at the IMF come during tumultuous times for the organi

发表于:2018-12-02 / 阅读(201) / 评论(0) 分类 2011年NPR美国国家公共电台6月

[00:04.57]Excitement fills the early morning air as you arrive at learn to recognize and name each part of the parachute. [00:19.17]You also learn what each part does. [00:22.05]The excitement builds as your teacher describes each stetp it of the jum

发表于:2018-12-03 / 阅读(191) / 评论(0) 分类 美国英语听力80篇

宝马德系三大豪华品牌之一,宝马的车系有1、2、3、4、5、6、7、i、X、Z、等几个系列,还有在各系基础上进行改进的M系(宝马官方的高性能改装部门)。 宝马公司创建于1916年,总部设在德国

发表于:2018-12-03 / 阅读(163) / 评论(0) 分类 世界名牌博览

[00:37.28]21 knots, sir. 时速二十一节,长官 [00:46.40]Hey, look, look, look! Look, look! 快看 [00:51.44]See it? 看到没 [00:54.60]There's another one. See him? 又来一只,看到没? [01:07.56]Look at that one. Look at him jump! 看,

发表于:2018-12-07 / 阅读(113) / 评论(0) 分类 听电影学英语—泰坦尼克号

[00:07.58]Igor Sikorsky was born in the city of Kiev, Russia; on May 25, 1889. [00:16.12]His mother was a doctor. [00:15.12]His father was a professor of psychology. [00:18.59]Igor became interested in science when he was very young. [00:23.82]He was

发表于:2018-12-26 / 阅读(169) / 评论(0) 分类 美国英语听力80篇

Aviation Day is on August the 19th. It is a day to celebrate the development and importance of aviation in the world. The holiday started in 1939. President Franklin Roosevelt decided the anniversary of Orville Wright's birthday should be National Av

发表于:2018-12-29 / 阅读(137) / 评论(0) 分类 英语课程学习计划和讲义

TEST 3 Listen carefully to the conversations and short passages [00:07.99]and choose the best answer to each of the questions. [00:13.56]1.A)She is pitiful. B)She is too shy to apply. [00:33.41]C)They are afraid of her. D)She is intelligent. [00:41.2

发表于:2018-12-30 / 阅读(154) / 评论(0) 分类 英语六级听力练习集锦

A robot entered a damaged reactor at Japan's Fukushima nuclear plant this week to take pictures of the reactor destroyed by an earthquake and tsunami in 2011. The robot, nicknamed 'The Little Sunfish,' is very small about the size of a loaf of bread.

发表于:2019-01-02 / 阅读(178) / 评论(0) 分类 2017年VOA慢速英语(七)月

CHRISTOPHER BOOKER: Every night, usually somewhere between dinner time and putting her children to bed, Louisville nurse Dawn Sirek reaches for her inhaler. DAWN SIREK: It's really simple and that's it. CHRISTOPHER BOOKER: On good days, this is only

发表于:2019-01-27 / 阅读(151) / 评论(0) 分类 PBS访谈健康系列

Even an Epsilon Lenina suddenly remembered an occasion when, as a little girl at school, 即使是爱扑塞隆列宁娜想起了一件事。那时她还是小姑娘,还在学校里读书。 she had woken up in the middle of the night and become awa

发表于:2019-01-29 / 阅读(142) / 评论(0) 分类 美丽新世界

Like the vague torsos of fabulous athletes, huge fleshy clouds lolled on the blue air above their heads. 他们头上是巨大蓬松的云朵,有如几个神话力土的模糊的胴体垂在蔚蓝的空中,或是高耸在他们头上。 Out of on

发表于:2019-01-29 / 阅读(131) / 评论(0) 分类 美丽新世界

水上运动--画里话外 The pool where synchronized swimming takes place must be at least 3m deep over a 12*12m area in the centre of the pool.花样游泳的水池区域有12米长1米宽,水深至

发表于:2019-02-01 / 阅读(147) / 评论(0) 分类 奥运英语

9月22-25日,习近平主席即将对美国进行国事访问,中美双边投资协定谈判将成为此行亮点之一。 请看《中国日报》报道: Negotiations on the China-United States Bilateral Investment Treaty (BIT) will make up mo

发表于:2019-02-04 / 阅读(137) / 评论(0) 分类 英文语法词汇

Finally, the long-awaited flying car is almost here. 终于,人们期待已久的飞行汽车就要面世了。 AeroMobil, a Slovakian company, plans to start selling its creation, the AeroMobil 3.0, in 2017. 斯洛伐克公司AeroMobil计划在201

发表于:2019-02-05 / 阅读(151) / 评论(0) 分类 英语新闻

ROME, Feb. 2 (Xinhua) -- Sixteen people were injured in an accident at Rome's Fiumicino airport on Saturday night when an ATR 72 aircraft went off the runway during landing. Two of the injured were in serious conditions, according to AGI news agency.

发表于:2019-02-18 / 阅读(240) / 评论(0) 分类 英语新闻

Science and technology 科学技术 Marine technology 船舶技术 A voyage of discovery 探索未知之旅 New technology can make ships more versatile, more efficient and cleaner, too 新技术使轮船更万能、更高效、也更环保 IN THE da

发表于:2019-02-18 / 阅读(182) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 Solar-powered aircraft 太阳能飞机 The Wright stuff? 莱特附体? An enthusiastic inventor hopes to sell sun-powered planes 一位希望出售太阳能飞机的痴狂发明家 THERE is something of the 19th

发表于:2019-02-24 / 阅读(147) / 评论(0) 分类 经济学人科技系列

Personalised news 个性化报刊 Your digital paper, sir 先生,您的电子报纸 The struggle to make money out of news on tablets 数字媒体平台的生财之道 1.A CUSTOMISED, constantly-updating newspaper used to be the stuff of science fi

发表于:2019-02-24 / 阅读(196) / 评论(0) 分类 经济学人综合
学英语单词
-athlon
a clear coast
access name
agostic
airglow spectrum
Alnwick
automatic rammer
Bacillus graveolens
barium yellow
base measuring pressure
be close on
bleedy
boron-containing gas
Branc
break out in a fresh spot
bumbameu boi (brazil)
calmed
cancelling command
chimeric DNA
chosenness
communicatingrisk
couple unbalance
crassostrea
crimping tools
Delphinium sutchuenense
delr
dividing plane
dkg
eald
eldoniah
enterprisey
explosion-proof instrument
Eycleshymers clearing-fluid
fiber bundle model
front draft zone
gum karaya
haemolytic jaundice
harnisch
hetrick
hexylene glycol
human resource information system
humanizable
hydraulic power take-off
Incarvillea Juss.
independent errors
intrasystem communication
isolation spring
knife-edge suspension
loudness of heart sounds
Maihak indicator
malonylation
Manotensin
market approach
mechanoresponses
Meliosma yunnanensis
melodics
microbial eczema
mixed accomplices
multipurpose loader
mysticum
neck of urinary bladder
neuroethologist
oligolamellar
Parnassia tenella
plungeth
preinitiations
presentized printing plate
Priston
publicity shot
purpura angioneurotica
rehabilitation of dollar
resource wait mode
rocket larkspurs
roller-hockey
rygel
Rāvang
Salten, Felix
scavan
Sharapovo
Sidnaw
simple articulation
single weight paper
slack down
spawn killing
sphaerium okinawaense
steadfasthead
steel retort
structural transplantation
subclass Anapsida
supracondylar amputation of femur
SWR meter
Syriasm
tectono-
temnostoma taiwanum
terrington
tetragnatha squamata
thromboarteritis
type i distribution
vapo(u)r phase chromatography
veneer clippers
viomycins
volatile money