时间:2018-12-27 作者:英语课 分类:英语时差8,16


英语课

Is there any sound more annoying than the whine 1 of a [dict]mosquito[/dict]? Yes, mosquitoes are pests through and through. But there's more to their irritating whine than meets the ear. For mosquitoes, that's the sound of love. It's well known by scientists that the mosquitoes' distinctive 2 buzz functions as a mating call. But one study shows that just before mating, members of a mosquito pair flap their wings just so to create a harmonic duet. Probably the coolest part about this research is how the scientists involved studied mosquito harmonies. Basically, the researchers used little lassos to harness mosquitoes and fly them past each other. They also set up small microphones nearby to catch the insects' love songs. And they put [dict]sensors[/dict] in the mosquitoes ears, or auditory organs, to record how they responded to mating calls. So if you're not a professional or amateur entomologist, why should you care that mosquitoes harmonize before mating? Because mosquitoes aren't just annoying pests. They also spread dangerous diseases such as dengue fever, which affects more than fifty million people every year. There's no vaccine 3 for the fever and no preventive measure other than avoiding disease-carrying mosquitoes. Which is where the new study could be important. Learning more about how mosquitoes mate could help scientists invent ways to target mosquitoes in areas at risk for dengue fever. For example, scientists could breed sterile 4 male mosquitoes able to create the right tones and harmonies to compete with wild males and thereby 5 reduce mosquito populations.



1 whine
v.哀号,号哭;n.哀鸣
  • You are getting paid to think,not to whine.支付给你工资是让你思考而不是哀怨的。
  • The bullet hit a rock and rocketed with a sharp whine.子弹打在一块岩石上,一声尖厉的呼啸,跳飞开去。
2 distinctive
adj.特别的,有特色的,与众不同的
  • She has a very distinctive way of walking.她走路的样子与别人很不相同。
  • This bird has several distinctive features.这个鸟具有几种突出的特征。
3 vaccine
n.牛痘苗,疫苗;adj.牛痘的,疫苗的
  • The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
  • She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。
4 sterile
adj.不毛的,不孕的,无菌的,枯燥的,贫瘠的
  • This top fits over the bottle and keeps the teat sterile.这个盖子严实地盖在奶瓶上,保持奶嘴无菌。
  • The farmers turned the sterile land into high fields.农民们把不毛之地变成了高产田。
5 thereby
adv.因此,从而
  • I have never been to that city,,ereby I don't know much about it.我从未去过那座城市,因此对它不怎么熟悉。
  • He became a British citizen,thereby gaining the right to vote.他成了英国公民,因而得到了投票权。
学英语单词
after-midnight
Alg.
Bacillus alcalinofoetidus
be blown out
behind the time s
Beiarn
bench formwork
Blackwell,Elizabeth
Bol'shaya Vyatkina
brake field tube
Brentford
brewing industry
broad share
cell-nests
central kitchen
chinese impact printer
chisos
chretienne
clinker grinder
cloakrooms
cowinner
crib consolidator
culicoides (beltranmyia) duodenarius
dandruffy
deielia phaon
dibenzoyl-ethylene
dispersion-limited operation
endlong
eosinohilic cell myositis
epibenthic sledge
Eurya tetragonoclada
excess noise
expelling wind-damp
Export Administration Act
extraneous estimator
feed valve body
flat mattock
fool's mate
functional material
Get Stiffed
gillaroos
golden wedding anniversary
hardflip
hoop snakes
hyperkeratosis figurata centrifuga atrophica
incommensurably
index-finger
initial terminal program
insure against death
intersleek
interwined
kirkpatrick, mount
Leonardsville
life form
machine workshop
male animals
manager's check
membership classes
multiple stage planetary gear train
naevus maternus
Nkanga
nonspontaneous
personal finance
pikelny
pironis
pre-loss
programming for simulation
reneweth
reversion index
risocaine
Saint Clair River
sauerkrauts
scrape
Scutellaria chekiangensis
semi-fined paraffin wax white
shake...to its foundations
sleeping with her
sodium aluminium fluoride
specie payment
standard log
stift
subcorpus
subpile control-rod compartment
sweet-clover disease
synchronizing wave form
syndrome of phlegm and blood stasis obstructing lung
systematic noise
tetruronic acid
thermal collapse
title guaranty company
titolo
transmission belt
tucked up
twilight shift
ultrafiltrations
unvulnered
Vesic.
visual elements
voltage circuit
wedge bracket
Xefo
yukigassen