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
aerial parts
air-dry density
angle preserving
bicartesian square
blorp
bluish-gray
bug-hunting
canulization
casting spot
center of a sample
chondrification of spleen
chromospheres
circulating surface acoustic wave delay line
conservancy of sanitation
continentis
contour diagram of joints
contour maps
copy boys
descending posterior branch
deutosulphuret
dilator pupillae muscle
double pain sensation
drop-in winding
dysgenesis
electrical initiation
electron microscope specimen holder
Elizabethan sonnet
Eubetin
everninocin
feasts of the dedication
followingly
frillins
gardenhire
graded index optic fiber
gravity culvert
high-headed
Houston Heights
in your thirties
incontrollable
initialization for equilibrium
internet law
ion exchange surface
jwst
ketatosis suprafollicularis
lig. sacrotuberale
litteriness
lysergides
male germ unit
male-specific bacteriophage
mean blade width
Medicine L.
misin
Molotov
Mswika
multifacet rotating prism
Myrica rubra Sieb. et Zucc.
narcocracy
neoandrographolide
non inductive coil
nozzle fuel injection
organ forming area
ostrich
other identifier
Pacific liner
pentapeptides
phonoscop
Phytar
premature rupture of fetal membranes
pressure unloading
proact
public decisions
puerulus larva
quadrature-modulated carrier
rotor magnet
Sagittaria wuyiensis
scaphoids
senns
serinephosphatide
settling basin (tank)
source update system processor
Stanislav
taylorsville
tekkamaki
teledus
television outlet
temporomandibular joint disorder
tiffany
to go downtown
transverse spacewidth
trichonosis versicolor
tubulization
unforgiver
unshapefulness
varactor mixer
viewres
visual information processing system
washing-off properties
work study program
Xaafuun, Raas
Yeatex
yellow brown earth
zelizer