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
3-indolylpyruvic acid
aft flight deck
appliance store
baptizers
Bid-asked spread
bilinear surface
blind folio
bottom feed waste oiler
bounded quantifier
bucket orchid
california fuchsias
canning station
center terminal of a pair of arms
chinese folk
Cipangopaludina
ciphering techniques
computer printer-display circuit
cylinder pressure monitoring
cylindrical weight
device select line
dispersed drilling fluid
downpours
dry sprinkler system
education centre
Elafonisos
Electroluminescent Phosphors
emotional-focused
energy isomeric transition
erinose
eutecticevaporate
excitation winding pole coil
experimental method
far-about
firing device
flame bridge
framesheet
full count out
functional assessment
fuundament
Gaussian concentration profile
heartshape embryo
high temperature side
highway bus station
holiday resort
impedances
initial programming checkpoint plan
intelligent man-machine interface
iris out
kamichika
Kurkinskiy Rayon
length unit
misdiscovered
mitered closer
mustelid
non destructive inspection
non-loaded cable carrier telephony
obstructed extrusion flow
package-drying machine
pallidus
Partanna
patocole
pavement maintenance truck
Peary Land
pre-excitation syndrome
preohmic
prettied
primary flash distillate
pterolophia kaleea inftexa
pulse regeneration
radiating spokes
reactor for space heating
real storage page table
receive-only earth station
remain silent
renal fascia
repair list
Rje, remote job entry.
rotating centre
Sanger
screenprinter
selenium dipropyl
sew down
shoepack
shouldve
siltpan
snow mists
soy
spectrum of biosystem
spin the platter
statement of stockholder's equity
stress-control winding
striding gait
Syllinae
systema
tartramates
terpane
toe reflex
transistor-transistor logic circuit
triprotic acid
unconventional manoeuvre
unmatchable
what's cracking