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
1-Chloro-3-bromopropene-1
6-mercaptopurine(6-MP)
aesthetic-judgment
analog scan converter
annihilatings
anti-fungal
axen
bar code length
Basidiolichens
body (capacitor) effect
boergers
Bubsheim
carpenter's gauge
choroid vein
circular railway
colloidal nature
conical marine raingauge
contraction strain
Coxytrol
crossword
daee
dead-ending
deoxidation sphere
Dipyrine
dose modal
duplicating lathe
economic commission for europe
electrical heater
electron-beam cutting
estrification
excitation anode
Ferintosh
filtering correction
flash gentleman
forex picks jack-up
gammin
gas treatment facility
gleyic solonetz
goitrogenous
gospels
hard-solder
Harvardians
have a bone to pick with sb
heartseed
high-pressure sprayer
hounded
hydraulic rail pulling device
hydroides elegans
hypochondriacally
Kelglycin
kreider
labelling
lost my mind
LWHR (light water hybrid reactor)
magistery of bismuth
Martin's cement
moody's investors services inc.
needlepoints
Negrophilist
nominal modulation rate
nonqualified
occurrences
over-frequency
pinaud's triangle
plastic bag
Port Alfred
pre-industrial prototype
programming language type
pull to a stop
quintessences
r-plasmid
red scare
reinforced concrete buttressed dam
relook
REN sleep
robot engineering
roy lichtensteins
ruminant feed
russula subnigricans
saturnine tremor
semichoral
spads
specialty of the house
St-Germain-les-Belles
straight good
submodule
sucessful
superconduction critical temperature
telemechanical apparatus
temperature-coefficient power regulation
to-spread
transonic speed zone
transonic wind tunnel wall interference
understood
undetectable error
was absorbed in
whoopie cushion
Willa Sibert Cather
Windows servers
xanthelasmas
zeranol