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
.mde
absorber washer
account receivable turnover rate
aegista impexa
Alpine air-swept sieve
aluminium welding powder
antircraft mount
appearance potential spectroscopy
auditory lateralization
autistic disorder (autism)
bearing variation value
block number
Boudjouma
capital shares apportionment
cartilagines sesamoidea
christ-liker
chronogeometry
collision length
controller of accounts
copras (copperas)
corneo-iritis
cursor remove
data item synthesis
deflection modulation
doomful
dry bottom
dugoni
duykerbok
electronic amplifier equipment
emergency piston ring
ethician
excitableness
excitate
Ferula syreitschikowii
fish age composition
fluoro epoxy ether
frequent flier miles
gaidars
gentypical sex determination
gesticulant
going project
ground colour light signal
hardware type
i don't see why not
increase in value
informational suppressor(gorini& beckwith 1966)
ittoral community
klops
launching fiber
lever valve
lophodermium petrakii
lychgate
minchins
mixer diode
one-price-fits-all
pajocke
papillae vallatae
peta-coulombs
Piarco
plane solid
planned circulating target
polarographic maxima
polylysogenic
prefabrication system
prewarming
promenading
put sb up to the ropes
radiation tolerance dose
repuit
rhythm method
sea scape
sensory and perceptual training
servicios
sickle cell tlait
six-foot-six
slag emulsion
solid-state electronic physics
sparbles
squinies
stalberg
stansforth
sulfocarbonic acid
switchless network
temporary timbering
thankful
There is a time for every thing.
times-herald
tostitos
total content
tumbrils
Ubinka
Unformatted text
unsystematic variation
vegoil
venous return line
vertical reactor
volar interosseous muscles
wdal
well-farmed
wiener least-squares solution
xylotrechus chinensis
zinc halide