时间:2018-12-24 作者:英语课 分类:Scientific American(一)月


英语课

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.


Can we be too clean? According to what's called the hygiene 1 hypothesis, yes. Without being challenged as kids, our immune systems don't flourish. Scientists think it could be part of the rise of allergies 2 and asthma 3.


Now a new study supports the hygiene hypothesis: infants in Uganda had a lower chance of developing the skin allergy 4 condition eczema if their moms had helminth worm infections while pregnant. The research is in the journal Pediatric Allergy and Immunology.


A 2005 study showed that kids of women treated for worm infections had more eczema. Twenty-five hundred pregnant women took part in this follow-up research. Some got one worm-killing drug. Others took a different drug. And a third group received a placebo 5. One drug nearly doubled the kids' risk of eczema. The other more than doubled the odds 6.


Helminth worm infections can give the mothers symptoms such as mild anemia 7 or stomach pain and vomiting 8. Although many people have no symptoms at all. The scientists say more research is needed before they would recommend not treating worm infections. But the work lends additional support to the idea that hygiene may be a balancing act rather than a goal.


Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.



1 hygiene
n.健康法,卫生学 (a.hygienic)
  • Their course of study includes elementary hygiene and medical theory.他们的课程包括基础卫生学和医疗知识。
  • He's going to give us a lecture on public hygiene.他要给我们作关于公共卫生方面的报告。
2 allergies
n.[医]过敏症;[口]厌恶,反感;(对食物、花粉、虫咬等的)过敏症( allergy的名词复数 );变态反应,变应性
  • Food allergies can result in an enormous variety of different symptoms. 食物过敏会引发很多不同的症状。 来自辞典例句
  • Let us, however, examine one of the most common allergies; hayfever. 现在让我们来看看最常见的变态反应的一种--枯草热。 来自辞典例句
3 asthma
n.气喘病,哮喘病
  • I think he's having an asthma attack.我想他现在是哮喘病发作了。
  • Its presence in allergic asthma is well known.它在过敏性气喘中的存在是大家很熟悉的。
4 allergy
n.(因食物、药物等而引起的)过敏症
  • He developed an allergy to pollen.他对花粉过敏。
  • The patient had an allergy to penicillin.该患者对青霉素过敏。
5 placebo
n.安慰剂;宽慰话
  • The placebo has been found to work with a lot of different cases.人们已发现安慰剂能在很多不同的病例中发挥作用。
  • The placebo effect refers to all the observable behaviors caused by placebo.安慰剂效应是指由安慰剂所引起的可观察的行为。
6 odds
n.让步,机率,可能性,比率;胜败优劣之别
  • The odds are 5 to 1 that she will win.她获胜的机会是五比一。
  • Do you know the odds of winning the lottery once?你知道赢得一次彩票的几率多大吗?
7 anemia
n.贫血,贫血症
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。
  • I was put on iron tablets for my anemia.我曾因贫血吃补铁药片。
8 vomiting
  • Symptoms include diarrhoea and vomiting. 症状有腹泻和呕吐。
  • Especially when I feel seasick, I can't stand watching someone else vomiting." 尤其晕船的时候,看不得人家呕。”
标签: 托福素材 sss
学英语单词
activator atom
Aldanispirifer
aldehyde-lyases
Altinyaka
aprm downscale alarm
bacteria microscopic examining instruments set
band groove
be in a take the pet
bisexual hybrid
bourden
brush contact encoder
cartoonings
celling voltage
charging dynamo
cilioposterocapsular fibers
comest
costabile
debouncing
declaration of deadweight tonnage of cargo
deflection defousing
durrance
dusicyon gymnocercus
electromagnetic coupling effect
endocarpic
engaging arm
eprom reliability
esteban
eunotogramma laevis
facilement
Fire Detection Alarm Systems
fixed exchange rates
flood and waterlogging control
gas plant
gaseous diffusion method
grid zone identification note
guest night
hard error rate
hot-pressed aluminium nitride
hydraulic check cylinder
internal strain
Jolfā
kiono-
kirkburtons
kohner
laev-
lay down his arms
lent segregation
libercarelessian
linguistic context
low voltage insulator
man-engine
management of design
Manet
manure drill
micromanometry
mirandina corticola
morphophonics
mosstone
mysores
off-axis reflector
orthomolybdate
oven dried
over-sob
paremoremo
pasture stock
postpolitical
privately-runs
puccinia flavipes
quadratic hill-climbing method
renavigating
Rixford
rosindol
S19V
samsonite
scana
shear edge
Sinaiticus codex
soap compound
spatial chemistry
stabilizing resistance
super-continent
superpixels
teases out
tenogenic
the woman
tinctural value
to play
Tokounou
tpc (taiwan power company)
transverse seam
true firs
ultrasonic wave-type fire detector
UNDOF
uromyces fabae(pers.)de bary
user-survey analysis
versicolors
village rules
volunteer program
wetting water
William Marcy Tweed
wind assisted ship
Zhdanovshchina