时间:2019-01-22 作者:英语课 分类:英语时差8,16


英语课

 You're hiking through the Rockies one day when you hear a low, ominous 1 rumble 2.   Landslide 3! Hundreds of tons of rock and soil are careening toward you at enormous speed.


Fortunately, there's a helicopter nearby and you lift off just in time to escape unharmed. But now you notice something odd. After the landslide has gone by, in its tracks little dainty flowers are still standing 4. Blades of grass are unbent. How is this possible?
Before we tell you the answer, here's another question. What happens when you drop a book flat onto a table?
If you try it, you'll see that the book doesn't hit the table unimpeded, but lands on a little cushion of compressed air. If you don't believe us, try putting some little pieces of paper on the table before dropping the book. The whoosh 5 of compressed air escaping will blow them off.
That's the same phenomenon that happens with landslides 6. When an enormous sheet of rocks and dirt gets moving, it acts like a solid object. It traps the air underneath 7 it and actually rides downhill on a cushion of air. Strange as it may seem, much of the landslide never touches the ground at all.
Because the cushion of air stays underneath it, the rocks and dirt aren't slowed down by friction 8 much and continue picking up speed as they fall. Large landslides have been clocked in excess of 100 miles an hour.
So -- could you just lie down and let the landslide whoosh over you? No, unless you are about the size of a blade of grass. People who are bigger than that should keep a helicopter handy.  

adj.不祥的,不吉的,预兆的,预示的
  • Those black clouds look ominous for our picnic.那些乌云对我们的野餐来说是个不祥之兆。
  • There was an ominous silence at the other end of the phone.电话那头出现了不祥的沉默。
n.隆隆声;吵嚷;v.隆隆响;低沉地说
  • I hear the rumble of thunder in the distance.我听到远处雷声隆隆。
  • We could tell from the rumble of the thunder that rain was coming.我们根据雷的轰隆声可断定,天要下雨了。
n.(竞选中)压倒多数的选票;一面倒的胜利
  • Our candidate is predicated to win by a landslide.我们的候选人被预言将以绝对优势取胜。
  • An electoral landslide put the Labour Party into power in 1945.1945年工党以压倒多数的胜利当选执政。
n.持续,地位;adj.永久的,不动的,直立的,不流动的
  • After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
  • They're standing out against any change in the law.他们坚决反对对法律做任何修改。
v.飞快地移动,呼
  • It goes whoosh up and whoosh down.它呼一下上来了,呼一下又下去了。
  • Whoosh!The straw house falls down.呼!稻草房子倒了。
山崩( landslide的名词复数 ); (山坡、悬崖等的)崩塌; 滑坡; (竞选中)一方选票占压倒性多数
  • Landslides have cut off many villages in remote areas. 滑坡使边远地区的许多村庄与外界隔绝。
  • The storm caused landslides and flooding in Savona. 风暴致使萨沃纳发生塌方和洪灾。
adj.在...下面,在...底下;adv.在下面
  • Working underneath the car is always a messy job.在汽车底下工作是件脏活。
  • She wore a coat with a dress underneath.她穿着一件大衣,里面套着一条连衣裙。
n.摩擦,摩擦力
  • When Joan returned to work,the friction between them increased.琼回来工作后,他们之间的摩擦加剧了。
  • Friction acts on moving bodies and brings them to a stop.摩擦力作用于运动着的物体,并使其停止。
学英语单词
.asc files
adrenocorticotropic hormone test
alaba
arthritic acne
Ban Bang Yi
birch leaf miner
bog harrow
bumble along
business prosperity
cavity resonant frequency
centrifugal gas compressor
click pallet
commission on secondary school curriculum (pea)
component strength units
connection of safety valve to vessel
consel de surveillance
countin
crimson lake
deviation area
display mechanism platform
Dolzhanskaya
DPEP
drowned river (ria)
Dunscore
electrically supported vacuum gyroscope
entered tonnage
estate-car
exchequering
facility location
Femorofemoral
festo
finitely generated flat module
fish tail cutter
flies around
fold fault
general long-term debt and interest group of accounts
gusetron
Hawcubite
heteronuclear diatomic molecules
india muslin
individual system costing
indyref
insufflation of Fallopian tube
interoperate
isolated bate field-effect transistor
Izumisano
Kondolole
Les Lucs-sur-Boulogne
Liapunov exponent
litchis
masoor
mega-scale
melbury
melzi
mica molded insulator
mixer valve
model answer
modicity
most - favored - nation treatment
Nawaikona
nectocalyx
neuroreflex
nonleptonic decay
nonspore-bearing
open-fuse
Oxycet
palatal index
pasilaly
phacelia
photoresist film
prawn cocktails
predication model
process flexibility
pseudodislocation
pulse wave packet
radiation monitoring and alarm assembly
radiotoxic
ramtha
reversible double filter
rhomb-porphyry
Rāmnāthpur
salient pole synchronous induction motor
scuta
shutdown system
singleton policy
small deflection
solaspigenin
spear plate
submit ... to
Taan white garlic
tention
the eyes are bigger than the belly
time delay circuit
tracking telemetry and command station
triticum polonicum l.polish wheat
unpromises
uzzells
value of shipment
vertical kiln
water acoustics
wide-angle shot
Yunnanellina