深海声传播

Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea-surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land. The open sea was deep and mys

发表于:2018-12-08 / 阅读(767) / 评论(0) 分类 新概念英语第四册

Sailors were on the top deck,they were yelling and pointing, thegiant octopods loosened his hold on Jack and Anne,The ship! Jack giggled before slipping under the water. His headpopped back up,Swim to the ship! He shouted to Anne.. Jack and Anne star

发表于:2018-12-10 / 阅读(128) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Jack plunched down into thesea, the water was freezing cold, hepumped back up to the surface, choaking and coughing, the lifevest kept Jack closed, but the waves kept hammering at him. Help! Jack shouted. Thought to the twenty foot tiger shark, andmy

发表于:2018-12-10 / 阅读(165) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Henry led Jack and Anne out of the sea lab, locking the door behindthem, then he led the way through the hall and down to other flat ofthe deep steps, in the faint light of the lower deck, Jack saw navyofficers and scientists sdreaming through the do

发表于:2018-12-10 / 阅读(124) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

The captain turned and stroked away. Sorry. Friends. Henry said to Jack and Anne. but captain in charge,he looked around, I see Joe and Tommy are helping the man bringup the catching now. as soon as they are free, I will ask them toback you to the sh

发表于:2018-12-10 / 阅读(134) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

The wind is against us. Joe said to Tommy in rouse voice, eventhough the boat pastthe vergers, he kept bunching up and down onthe sweltered. Water splashed over the side, and soaked Jackscloth, but Jack wasnt worry about the wind or water. He wasworr

发表于:2018-12-10 / 阅读(130) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Jack threw their book onto his pack, and quickly ran to join Anne. Hi! He said to the three men. Dont be afraid. Said Anne. we come in peace. The three men kept talking, who, who are you? One of the sailorspattered. Jack and Anne walked closer. I am

发表于:2018-12-10 / 阅读(120) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Jack opened his eyes, Teddy and Catherine were gone, the warmair was filled with mist, Jack and Anne peered out of the windowtogether, the tree house had landed, and the tall tree with spreadingbranches, the mist was so thick, they couldnt see anythi

发表于:2018-12-10 / 阅读(125) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Jack felt rain drops he looked up and saw the summer storm cloud . Hurry! Jack called to Anne. They were riding their bikes home form library, Jacks backpackwas filled with library books. He didnt want them to get wet, asJack and Anne piddled fast, a

发表于:2018-12-10 / 阅读(143) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Where is my backpack? Jack yelled to Anne. What? Anne said. My backpack! Said Jack. Dont worry about it now, said Anne, wehave to ...the wand, the wand. Jack interrupted her. Oh, said Anne. the wand. We have to find my pack, fast! Said Jack. Jack and

发表于:2018-12-10 / 阅读(149) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Jack looked up, the captain the professor and the crew memberwere all gazing out of the side silently down the water. Henry gavecaptain a salute. The captain saluted back. then everyone on boardclapped andshouted. Overhead the clouds disappeared, as

发表于:2018-12-10 / 阅读(127) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Jack put his wand back to his pack, then he and Anne chargedback to lab with Henry behind them. The three of them came backupstairs, when they stepped out to the top deck, they heard thesailors still shouting and yelling. Jack and Anne raised across

发表于:2018-12-10 / 阅读(100) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 Over 60% of our planet is covere

发表于:2018-12-19 / 阅读(140) / 评论(0) 分类 环球英语 Spotlight

More Surprises from the Deep Sea Researchers hired to study part of the deep sea floor of the Pacific Ocean found a surprising number of new animal species. Scientists at the University of Hawaii at Manoa studied a 900-square-kilometer area in the ea

发表于:2019-01-12 / 阅读(174) / 评论(0) 分类 2016年VOA慢速英语(八)月

Singer-songwriter Eric Bibb delves deep into the Delta blues on his new release, Booker's Guitar. The album was inspired by a vintage guitar once owned by Mississippi bluesman Booker White. Eric Bibb claims he's a lifetime fan of the late Booker Whit

发表于:2019-01-13 / 阅读(180) / 评论(0) 分类 VOA标准英语2010年(一月)

Sea Life Color Codes Food to Evade Danger The ocean glows with undersea life which makes its own light. These animals living on the ocean floor, beyond the reach of sunlight, have evolved this bioluminescence for camouflage, to find mates or to repel

发表于:2019-01-13 / 阅读(150) / 评论(0) 分类 VOA标准英语2012年(九月)

ARI SHAPIRO, HOST: We're going to speak now with someone who has spent the last month exploring a largely uncharted world, discovering some bizarre creatures that have never before been seen by humans. Dr. Tim O'Hara is a marine biologist, and we are

发表于:2019-01-17 / 阅读(154) / 评论(0) 分类 2017年NPR美国国家公共电台6月

PowerChina International, Shenzhen's Yantian Port Group and Rizhao Port Group have been selected to help a Malaysian company build the 1.9-billion US dollar port. The project itself is part of the larger Melaka Gateway Project that China and Malaysia

发表于:2019-01-19 / 阅读(149) / 评论(0) 分类 2016CRI中国国际广播电台

Working coast to coast Sleeping on a train Caught between The settled life And on the road again People often ask me Where it is Im from Find it hard to tell them So I say it in a song Eagle in the mountains Floating on a breeze Shark out in the ocea

发表于:2019-02-19 / 阅读(127) / 评论(0) 分类 美国乡村音乐

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 Over 60% of our planet is covere

发表于:2019-03-04 / 阅读(449) / 评论(0) 分类 环球英语 Spotlight
学英语单词
a man among men
aberration correction
aegothelids
air division
Alpha-Glycogen
aluminize
aneuch
any less
ataxophemia
automobile tire gauge
barringerite
Binangonan
bridgeviews
caustic effect
chatki
clustering method
coarse pitch involute system
coefficient of rebound
coil magnetizing method
collar oiler
complementary metal oxide semiconductor (cmos)
critical load line
cundinamarcas
depth of breaking
diagonally-isotone mapping
digital encoder
dohuks
drifting valve
Erb's dystrophy
ethylene-vinylacetate copolymer (eva)
face north
flux peak
foreign reserve
frequency demultiplication
frowstiest
full gear
gergon
guicciardinis
haxhiu
Hedychium densiflorum
homogeneous random field
hot-water heat-supply network
ICCL
iconclastic
idioneurosis
insurance block
intoxicateth
introducted
it's not my pigeon
JIC
Landline phone
lovemaps
man-machine conversation mode
minimum ratio between DNB heat flux and local heat flux
mispride
Morganian School
Mwachisompola
My Hoà
N-semiconductor
nearshore current
normal sort program input procedure
NTAG
nucleatr decay mode
omnibus bill
on state
on-timest
order function
perispome
phgsiomedical
phyllosticta cyclaminis brunaud
post-fordist global economy
potential pollution
predicted wind angle
propaganda film
putr-
radio telegraph procedure
request programme
return on gross assets
right derivative
right-foot
sheinman
shrestha
single trailing arm type
single vehicle
single-phase alternating current
siphon gauge
skirmishers
slidder
spandrel-filled arch
step-down transformation
stepille
submillimeter laser emission
tax status
temperature compensated hydro meter
the means of production
tin soldering
tip-back
trace gas analyzer
underlying lien
weah
white Christmas
zoning scheme