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
-crafted
Acanthephippium striatum
active crystalline material
aeluropsis
alabre
aluminates
architectonic
back surface reflection and back surface field solar cell
balance formward
bearing support fastener
Borgustanskaya
building-code
Bureyskiy Rayon
capstan amplifier
catproof
church pk.
collecting company
controllable source
cresorcin
demonstration engine
depreciation job method
derogatoriness
directories
displastic
dissembling
dodger
doomage
equalization of burden
equip
Escherichia neapolitanana
face curtain
federalise
Fissura orbitalis inferior
footrill
frequency record
Gamana, R.
gargareon
Gentiana cristata
geras
graph information retrieval language
grospiron
honorary degrees
ignore absolute
index arm
infantees
intrinsic rate of increase
Iowa Park
jahnsite- (camnmg)
jerk jobs
Johnson grasses
ju
Kolola Springs
lap-only
lenite
low pressure evaporator
LTPS LCD
magnetic printing ink
man's
mean day flow
narrow guide
narrow-band
nervi frontalis
noncelebrations
O/M ratio (oxygen to metal ratio)
odcase
oleandra undulata (willd) ching
or model
orangiest
oxynitriles
perfumeries
pexiganan
pisanianura breviaxe
pitches
precontour
prezygapophyses
Primula fistulosa
provisions lift
prunus salicina var.pubipes bailey
pum grasp
Pyracantha fortuneana
radices sophorae subprostratae
raiman
red maidss
reichsmarschalls
reproduction cost
roentgenising
roll boiling
sadlier
shaping property
shit bird
shotgun cloning
starch lump
steam-atomizing burner
suspected variable
symeons
thunder cloud
tile culvert
turpinia pomifera dc.
user bases
Vauban's fortification pictures
Wenlock R.
zero polynomial