时间:2019-02-24 作者:英语课 分类:英语听力文摘 English Digest


英语课

  D: Oh, no, Yeal, it is starting to rain, and I left my ant farm outside.Now my ants would drown and die.

Y: Come on, Don. I am guessing plenty of ants drown everytime it rains, which makes me wonder how do ground-nesting ants cope with rain?

D: Actually, ant species that burrow 1 have different flood survival strategies. I mean, nest design alone can go a long way. Some species make sure to build their nests in sandy or well-drained soil that absorbs moisture and dries quickly. And others build mounds 2 with waterproof 3 roofs.

Y: Pretty clever.

D: Oh, that's nothing. One tropical species of ants has an alarm and evacuation plan for flooding. At the first sign of rain, minor 4 worker ants start racing 5 through the nest’s tunnels, mobilizing the entire nest is less than thirty seconds.Odor trails then direct everyone down unobstructed tunnels to dry areas in the nest or–if necessary–to those exits that aren’t blocked by water.

Y: Now, that's pretty amazing.

D: Some species have flood plans that even top that. A species of fire ants in the southwest leave their nests and form a large mass around the queen and her brood, basically acting 6 like a living raft that floats until the waters recede 7, or it gets anchored on grass or bushes. Even though some die, enough survive–usually including the queen–so that once the waters go down, they can return to the nest or build a new one and go back to business as usual.

Y: So, Don, how could an ant lover like you leave his ant farm outside?

D: Well, I thought that I enjoyed a change of scenary.



vt.挖掘(洞穴);钻进;vi.挖洞;翻寻;n.地洞
  • Earthworms burrow deep into the subsoil.蚯蚓深深地钻进底土。
  • The dog had chased a rabbit into its burrow.狗把兔子追进了洞穴。
土堆,土丘( mound的名词复数 ); 一大堆
  • We had mounds of tasteless rice. 我们有成堆成堆的淡而无味的米饭。
  • Ah! and there's the cemetery' - cemetery, he must have meant. 'You see the mounds? 啊,这就是同墓,”——我想他要说的一定是公墓,“看到那些土墩了吗?
n.防水材料;adj.防水的;v.使...能防水
  • My mother bought me a waterproof watch.我妈妈给我买了一块防水手表。
  • All the electronics are housed in a waterproof box.所有电子设备都储放在一个防水盒中。
adj.较小(少)的,较次要的;n.辅修学科;vi.辅修
  • The young actor was given a minor part in the new play.年轻的男演员在这出新戏里被分派担任一个小角色。
  • I gave him a minor share of my wealth.我把小部分财产给了他。
n.竞赛,赛马;adj.竞赛用的,赛马用的
  • I was watching the racing on television last night.昨晚我在电视上看赛马。
  • The two racing drivers fenced for a chance to gain the lead.两个赛车手伺机竞相领先。
n.演戏,行为,假装;adj.代理的,临时的,演出用的
  • Ignore her,she's just acting.别理她,她只是假装的。
  • During the seventies,her acting career was in eclipse.在七十年代,她的表演生涯黯然失色。
vi.退(去),渐渐远去;向后倾斜,缩进
  • The colleges would recede in importance.大学的重要性会降低。
  • He saw that the dirty water had begun to recede.他发现那污浊的水开始往下退了。
学英语单词
aircraft general information
alpha position
aneuploidogen
anti-rolling fin
arteria bulbi penises
asporous bacteria
atomic number 65s
boil clear
bona fide possession
bonitoes
carrick on shannon
central and western regions
chair-lift
cold and hot trial
communalities
compatibility of fixed point constraint
conductor rail system
consumption of labor power
control rod group
covi
cross it
daily gain
drop publications
epigastric zone
European currency snake
experimental pharmaceutics
Fastigiobulbar
foreign exchange official rate
formaldehyde (hcho)
four-stroke internal-combustion engines
get rolling
give blood
goal-kicks
guestimated
Gymnadenia bicornis
harachi
Hauptsrus
have a convulsion
health account
hedge ratio
hepadnaviridae
Hippocrates' method
hippulin
homoplastid(michaelis 1957)
Hwadae
inertia time
initial point of expansion
j.upton
Knottingley
Koelreuteria paniculata
larchen
limnophlia (dicranophragma) formosa
make oneself heard
marjoram
maximum independent set
mccrindle
milton friedmen
morphological stability
Mudirra
multiplane-multispeed balancing
mute-hill
muurolane
myelocone
nasal canthuss
nect-
Nsenga
orientation preserving mapping
overrall
pallet lift
peleuss
PHCM
piriniversiform
pissbabies
plorensio
polyester filament
poontang
potassium yttrium sulfate
practical intelligence
pre-Arnoldian
quercimeric acid
rank-dependent utility theory
remote signaling
reverse transfer admittance
root directories
Sakht-Sar
salmon patch
seed blanket breeder reactor
space centroid
St-Germain-Lembron
stylobol
subcisive
Tachina, R.
tautomeric shift
temorites spinifera
transistor flasher
ulopyranose
verification of account
vocaltec
W-256
wapner
week in, week out
Yang Dipertuan