时间:2019-02-16 作者:英语课 分类:英语听力文摘 English Digest


英语课

  I love to eat sweets--candy, cookies, caramel apples--- everything. But I don't like  getting cavities. Is there a way to eat lots of sugar without ruining your teeth?

D: Interesting question. First, let's assume that you're not going to cut out sweets   entirely 1. So what are your options? If you're going to eat candy, for example, it's best   to eat a bunch all at once instead of eating a few pieces at a time throughout the day.

Y: That's because every time you eat sugar, or any carbohydrate 2 like potato chips or  crackers 3 or whatever, there's a thirty- to sixty-minute period where bacteria in your  mouth feed on the carbs and produce acid. The acid is what eats away at your teeth.  So if you're snacking on candy several times a day instead of just once, your teeth   are exposed to more cavity-causing acid.

D: It's also smart to eat candy around or just after mealtimes, because during meals you  have an increased flow of saliva 4 that helps wash out your mouth and creates a kind  of buffer 5 between your teeth and the bacterial 6 acid.

Y: Your best bet, of course, is to lay off the candy. But of course that's easier said than done.

caramel:焦糖

cavity:蛀牙

carbohydrate:碳水化合物,糖类

saliva:唾液

buffer:起缓冲作用的(物或人)



ad.全部地,完整地;完全地,彻底地
  • The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
  • His life was entirely given up to the educational work. 他的一生统统献给了教育工作。
n.碳水化合物;糖类;(plural)淀粉质或糖类
  • You should not have too much carbohydrate in your diet.你日常饮食中不该有过多碳水化合物。
  • Cashew nuts are rich in carbohydrate.腰果含丰富碳水化合物。
adj.精神错乱的,癫狂的n.爆竹( cracker的名词复数 );薄脆饼干;(认为)十分愉快的事;迷人的姑娘
  • That noise is driving me crackers. 那噪声闹得我简直要疯了。
  • We served some crackers and cheese as an appetiser. 我们上了些饼干和奶酪作为开胃品。 来自《简明英汉词典》
n.唾液,口水
  • He wiped a dribble of saliva from his chin.他擦掉了下巴上的几滴口水。
  • Saliva dribbled from the baby's mouth.唾液从婴儿的嘴里流了出来。
n.起缓冲作用的人(或物),缓冲器;vt.缓冲
  • A little money can be a useful buffer in time of need.在急需时,很少一点钱就能解燃眉之急。
  • Romantic love will buffer you against life's hardships.浪漫的爱会减轻生活的艰辛。
a.细菌的
  • Bacterial reproduction is accelerated in weightless space. 在失重的空间,细菌繁殖加快了。
  • Brain lesions can be caused by bacterial infections. 大脑损伤可能由细菌感染引起。
学英语单词
acute ileus
adjustable skid
adzuki bean
alta fescue
Anabarskiy Rayon
Androsace laxa
anisotropic refraction
arethusa
arthroplasty of first metatarsophalangeal joint
back-tensioned drawing
be constitutive of
belt buckles
benzoxazepine
book-lists
bulb tube
bulliet
cadmium orange
caimitos
calaba
cascade theory
cephaloparasitus
chip color
coachroofs
conjurators
container system
conventional terms
crime waves
dendrometers
derays
diopter thread
direct action pressure controller
double slider coupling
dual feed channel
electromagnetic signal masking
entitle sb to
eye dialect
First Secretary
fleerers
Gauss' law of flux
Geisenfeld
glossinids
haemagglutinating
high-energy accelerator
homoiconicity
hootch
hypnogenic zone
illume
indexing operation
instrumental aggression
intermittent continuous current
international effort
jachendar
leucoscopy
levogyrous
linear colliosion cascade
lipoproteinemia
marincello
Mashu-ko
mask shell
mega amp
memorative
Mmes, Mmes.
MTDC transmission system
najran
nerium indicum mill. var. leucanthum makino
nominal freezing point
non analogous
nonessential enzyme
oil immersed breaker
omohyoideus
osmium(viii) oxide
other'n
party engineering
preysse
range indicator panel
recirculating ball steering
reference test block
reliction
renormalization group
roentgenographers
Rosa canina L.
rosin acids
Rozzano
sand system scrubber
sans nombre
saw-billed Hermit
single curvature parts
steamship line
stovepipe pants
stuffsacks
subheadwords
subsection
supersaturated
syndetic program
thunderest
time drift of gyroscope
two row cylinder
uncognizable
usurous
viewing frustrum
weekend warrior
zero of code