【简介】感谢网友“雕龙文库”参与投稿，这里小编给大家分享一些[db:SEO标题]，方便大家学习。
科普英语？含金量高。上海科普英语竞赛含金量含金量高。科普英语竞赛其难度大，是上海市初升高最看重的比赛之一。将科普教育与英语学习有机结合，旨在以英语为载体，拓宽中学生的视野，提高科学素养。那么，科普英语？一起来了解一下吧。
上海初中科普英语竞赛
教育毕基拿题材可锋裂以说 education subjects 或者 education theme科普知手搭识可以说 universal science 或者 common science
科普视频英文怎么说
含金量高。上海科普英语竞赛含金量含金洞升量高。科普英语竞赛其难度大，是上海市初升高最看重的比赛之一。将科普教育与英语学习有滚返机结合，旨在以英语为载体，拓宽中学生的视野纳备老，提高科学素养。
科普类的英语短文
分类:外语/搭扒出国卖咐
问题描述:
谢谢知配昌
解析:
科普（科技普及）
Sicence Popularizing
科普一下英文
吃糖一向被视为肥胖者的大忌,，除此以外，一般读者可能还知道吃糖与蛀牙、与某些心血管疾病的关系。可你是否想到过吃糖与人的衰老也有关系呢？本文则报道了这方面的最新研究成果，读后令人大长见识。
Rats that eat high levels of a natural sugar known as fructose seem to age faster than other rats----and the same could be true for people who eat too much sweet junk food, Israeli researchers said Monday.
以色列的研究人员星期一说，大量摄取一种叫做果糖的天然糖的老鼠，似乎比其他老鼠衰老的更快。对甜食吃得太多的人来说，情况也可能会是如此。
Fructose, found naturally in honey and fruit, is used widely in foods ranging from soft drinks to yogurt. But while its sweet taste is popular, the sugar could cause wrinkles and heal the problems, the researchers said. Dr. Moshe Werman and Boaz Levi of the Technion- Israel Institute of Technology fed large amounts of fructose to laboratory rats. Writing in the Journal of Nutrition, they said the fructose-fed rats showed changes n the collagen of their skin and bones.
自然存在于蜂蜜和水果中的果拆雀糖，被广泛用于从饮料到酸奶的各种食品中。
知识科普的简写英文
暗银河系的发现及其科学意义
In addition to conventional galaxies, the universe contains very dim galaxies that until recently went unnoticed by astronomers.Possibly as numerous as conventional galaxies, these galaxies have the same general shape and even the same approximate number of stars as a common type of conventional galaxy, the spiral, but tend to be much larger. Because these galaxies ’mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies. Apparently these low-surface-brightness galaxies, as they are called, take much longer than conventional galaxies to condense their primordial gas and convert it to stars—that is, they evolve much more slowly.
These galaxies may constitute an answer to the long-standing puzzle of the missing
baryonic mass in the universe. Baryons—subatomic particles亚原子粒差段子 that are generally protons or neutrons—are the source of stellar, and therefore galactic, luminosity, and so their numbers can be estimated based on how luminous galaxies are.However, the amount of helium in the universe, as measured by spectroscopy光谱学, suggests that there are far more baryons in the universe than estimates based on galactic luminosity indicate.Astronomers have long speculated that the missing baryonic mass might eventually
be discovered in intergalactic space星系际的空间 or as some large population of galaxies that are difficult to detect.
－－－－－－－－－－闷谨－－－－－－－－－－－－－－－－虚罩誉－－－－－
另类海豹哺乳方式与众不同
Until recently, zoologists believed that all species of phocids (true seals), a pinnipped family, use a different maternal strategy than do otariids (fur seals and
sea lions), another pinniped family. Mother otariids use a foraging strategy. They acquire moderate energy stores in the form of blubber before arriving at breeding sites and then fast for 5 to 11 days after birth. Throughout the rest of the lactation (milk production) period, which lasts from 4 months to 3 years depending on the species, mother otariids alternately forage at sea, where they replenish their fat stores, and nurse their young at breeding sites. Zoologists had assumed that females of all phocids species, by contrast,
use a fasting strategy in which mother phocids, having accumulated large energy
stores before they arrive at breeding sites, fast throughout the entire lactation period, which lasts from 4 to 50 days depending on the species. However, recent studies on
harbor seals, a phocids species, found that lactating females commenced foraging
approximately 6 days after giving birth and on average made 7 foraging trips during the remainder of their 24-day lactation period.
The maternal strategy evolved by harbor seals may have to do with their small size and the large proportion of their fat stores depleted in lactation. Harbor seals are small compared with other phocids species such as grey seals, all of which are known to fast for the entire lactation period. Studies show that mother seals of these species use respectively 84 percent, 58 percent, and 33 percent of their fat stores during lactation. By comparison, harbor seals use 80 percent of their fat stores in just the first 19 days of lactation, even though they occasionally feed during this period. Since such a large proportion of their fat stores is exhausted despite feeding, mother harbor seals clearly cannot support all of lactation using only energy stored before giving birth. Though smaller
than many other phocids, harbor seals are similar in size to most otariids. In addition,
there is already some evidence suggesting that the ringed seal, a phocids species that
is similar in size to the harbor seal, may also use a maternal foraging strategy.
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
pheromones是什么东东，是不是该划为odorant
There is no consensus among researchers regarding what qualifies a substance as a pheromone. While most agree on a basic definition of pheromones as chemicals released by one individual of a species which, when detected by another individual of the same species, elicit a specific behavioral or physiological response, some researchers also specify that the response to pheromones must be unconscious. In addition, the distinction
between pheromones and odorants—chemicals that are consciously detected as odors---can be blurry, and some researchers classify pheromones as atype of odorant. Evidence that pheromone responses may not involve conscious odor perception comes from the finding that in many species, pheromones are processed by the vomeronasal (or accessory olfactory) system, which uses a special structure in the nose, the vomeronasal organ (VNO),to receive chemical signals. The neural connections between the VNO and the brain are separate from those of the main olfactory system, whose processing of
odorants triggers sensations of smell. But while the VNO does process many animal
pheromone signals, not all animal pheromones work through the VNO. Conversely,
not all chemical signals transmitted via the VNO quality as pheromones. For example,
garter snakes detect a chemical signal from earthworms—one of their favorite foods—via
the VNO, and they use this signal to track their prey.
－－－－－－－－－－－－－－－－－－－－－－－－－－－－
以上就是科普英语的全部内容，科普版英语和教育版本接近。新编科普英语采用较新科普知识，内容涉及面广，语言规范，有一定实际应用价值。适合各类科学爱好者，大、中学生，教师扩大自然科学知识面以弥补偏科不足。内容来源于互联网，信息真伪需自行辨别。如有侵权请联系删除。
