时间:2018-11-30 作者:英语课 分类:英语专业四级听写


英语课
Passage 19
Finding the Direction and Location
How can you tell which direction? By day, look for the Sun. It is in the east in the morning and the west in the afternoon. At night, use the Big Dipper to help you find the North Star. It would be better to bring a compass because its needle always points north.
How do you know how far you have gone? You could count every step. Each step is about two feet. You’d better wear a pedometer which is a tool that counts steps. If you know where you started, which direction you are heading, and how far you have gone, you can use a good map to figure out exactly where you are.
Today there is a new way for travelers to figure out where they are. It is the GPS. It has 24 satellites that orbit 1 the earth and constantly broadcast their positions. Someday you may carry a small receiver as you hike and use GPS to find out if you are there yet!


1 orbit
n.轨道;vt.使沿轨道运行;使进入轨道运行;vi.沿轨道运行,环行
  • The space rocket was launched and went into orbit.宇宙火箭发射后进入轨道。
  • We can draw the earth's orbit round the sun.我们可以画出地球绕太阳运行的轨迹。
学英语单词
Adams,John
Afro-Americanism
atomizing spray nozzle
berginization
bird i. (aves i.)
bookies
books of prime entry
Bourbakism
Brophy, Mt.
carneopapillary
carving therapy
cheapest
claim to immunity
coogans
d.c. signaling
default password
die mounting base
disturbance of sleeping
double gauge track
ebb anchor
end-standard interferometer
epistles to philemon
facies anterior (cruris)
family Trombidiidae
fecal matter
feidel
fjeld
flat mode
flint glasses
Fort Dix
four-dimensional form of Maxwell equations
fractional-mu tube
Freienohl
furunculosis of vulva
go off at a tangent
hand operated brake
hawk-liker
Heads will roll.
high energy nuclear magnetic resonance detector
hydraulic jet pipe controller
Hydrellia griseola
hydrogen-chlorine cell
in an
insertion position
key store
kirgizstans
left atrial hypertrophy
left-luggage offices
leyte
logical protocol
low level multiplexer
lusane
mast hoist-full hydraulic cylinder
metal sealed tube
Mini Cube
Mkambati
molten salt electrochemistry
monkey bars
mozzettas
nodalization
nodding donkey
non metallic alloy ingredient
nonresults
Online Certificate Security Protocol
open pipe
ortyocephalic
patent tribunal
Peninsula Pt.
pericardial vein (pericardiac vein)
perstand
photoresistive or photoconductive transduction
political film
post in the ledger
production residues
programmed data processor-11
rakha
relative voltage response
reservoir property
resmoothed
self-purification of waters
sharples (super)centrifuge
side combusion chamber
skinpassing
soletellina diphos
splitting time
spring track
superscript character
system of personal responsibility for profit and loss
thermoneutral
Thriambus
tisar
trimerorhachid
triour
true heading computer set
truncated dodecahedra
vaginotabella
verb-objects
vilkis
waste heat removal system
work-silver
xanthothricin
zombie computer