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
airport movement system
allosexuals
azacyklonol
bandlets
beta-thalassemia
bollock block
Bordighere
bronze soldering
burdock oil
central management
Climactichnites
coaxial valve
cochrane r.
counterdiscourse
daile
director of an institute
discrimination method
disembitter
divide and conquer
electron tube base
ententive
equal-addendum tooth
errations
falling ball impact test
FE/TIBC
free tissue grafting
fuel oil gravity tank
function-transform pair
gloansy
glutamic acid fermentation
hand-plant
hardferns
Honnef
hydraulic filter
inorganic ions
intermarital
just perceptible visual colour difference
Jūpār
Kie-Ntem, Prov.
letteres
locative case
Lowry, Malcolm
lukago
main shock
manege
marketing history
micronecrosis
mimetic crystals
miostagmin
moddam
multiple shear rivet
mutual covenants
naismith
nameplate rating
nauger
nobody's fool
nominated subcontractor
numerical linear algebra
orthodox sleep
owner of a corpse
parallel mirror cavity
patriarchical
pelotherapy
perfeccin
petroquimicas
photoresponse nonuniformity
plan to do
pneumopericardium
postlarval fish
pot-lids
readathon
real gross national product
relative hearing
remotesense
Rudall R.
runner-at-tached boot
Scioto R.
Scolopodus
sea holly
serial access memory
shooting angle
sight deposist
sphincterotome
spinning with chip forming
Staffordshire
standing wave detector
strained crystal
symmetric karyotype(stebbins 1950)
synchronal
through an experiment
tiney
topologically solvable group
totalitarian system
trade-weighted exchange rate index of Hong Kong dollar
trichinelloses
umbilical knot
unsnag
vaccinologist
valmieran
vert statement
work his fingers to the bone
Zapiola Ridge