首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Adaptation of Living Things Certain animals and plants develop characteristics that help them cope with their environment be
Adaptation of Living Things Certain animals and plants develop characteristics that help them cope with their environment be
admin
2015-08-08
48
问题
Adaptation of Living Things
Certain animals and plants develop characteristics that help them cope with their environment better than others of their kind. This natural biological process is called adaptation. Among the superior characteristics developed through adaptation are those that may help in getting food or shelter, in providing protection, and in producing and protecting the young. That results in the evolution of more and more organisms(生物体)that are better fitted to their environments.
Each living thing is adapted to its way of life in a general way, but each is adapted especially to its own distinct class. A plant, for example, depends upon its roots to fix itself firmly and to absorb water and inorganic chemicals(无机物). It depends upon its green leaves for using the sun’s energy to make food from inorganic chemicals. These are general adaptations, common to most plants. In addition, there are special adaptations that only certain kinds of plants have.
Many animals have adaptations that help them escape from their enemies. Some are hidden by their body color or shape, and many look like a leaf or a little branch. The coats of deer are colored to mix with the surroundings. Many animals have the ability to remain completely still when an enemy is near.
Organisms have a great variety of ways of adapting. They may adapt in their structure, function, and genetics; in their development and production of the young; and in other respects. An organism may create its own environment, as do warm-blooded mammals(哺乳动物), which have the ability to adjust body heat exactly to maintain their ideal temperature despite changing weather. Usually adaptations are an advantage, but sometimes an organism is so well adapted to a particular environment that if conditions change, it finds it difficult or impossible to readapt to the new conditions.
In the first paragraph, the word "environments" could best be replaced by______.
选项
A、contexts
B、surroundings
C、neighbors
D、enemies
答案
B
解析
在不认识“environments”的情况下,我们可以通过上下文来猜测该词的意思。根据第一段内容,主要讲什么是生物适应,其实根据常识也可以判断,适应无非是针对生存环境而言的,那么可以初步断定“environments”意为“环境”。而A.contexts意为“上下文,语境”,C.neighbors意为“邻居”,D.enemies意为“敌人”,都不符合题干要求。B.surroundings出现在倒数第二段“The coats of deer are colored to mix with the surroundings.”因此正确答案是B。
转载请注明原文地址:https://kaotiyun.com/show/n3md777K
本试题收录于:
职称英语卫生类B级题库职称英语分类
0
职称英语卫生类B级
职称英语
相关试题推荐
Usingtheinformationinthetext,completeeachsentence14-18,withawordorphrasefromthelistbelow.Foreachsentenc
Readthefollowingpassageandanswerquestions9-18.1.Whenoneofyourcartiresgoesflat,therearetwothingsyoucando.
Lookatthetenstatementsforthispart.Youwillhearatalkabout"ANewChangeofAmericanImmigrationSystem".Dec
Youwillhearfivepeoplegivingtheiropinionsonspankingchildren.Forquestions9-13,choosefromthelistA-Fwhateac
Lookatthequestionsforthispart.Youwillhearapassageabout"ChangesintheRankingsofBritishUniversities".F
YouaregoingtoreadamagazinearticleaboutamanwhoteacheschildrenhowtoimprovetheirmemoryChoosethemostsuitableh
ClarethinkstheirfatherwillbepleasedbyTom’snews.Tombelieveshecanmanagebothswimmingandschoolwork.
Examinationpapersoftheclassweremarkedwithoutbias.
Themostpressingproblemanyeconomicsystemfacesishowtouseitsscarceresources.
WaterResourceMorethanhalfofthewaterusedfordrinking,washingandirrigatingcomesfromundertheground.Thissubte
随机试题
计算∫x2lnxdx.
A.循环超负荷B.过敏反应C.发热反应D.变态反应E.细菌污染反应输血时出现端坐呼吸,咳泡沫痰的是
131I治疗甲亢最适合于
甲、乙、丙三人共同伤害被害人丁,公安机关对丙作出撤销案件的处理,检察机关对甲提起公诉,对乙作了不起诉处理。被害人欲提起附带民事诉讼,下列说法哪些是正确的?()
下面是关于确定土地估价基本事项的有关描述,正确的是()。
矿用工字钢一般设计为()。
“备案号”栏:()。“集装箱号”栏:()。
首家金融理财的专业协会是()
下列有关细胞分化的叙述,正确的是()。
警察虽然随着国家的产生而产生,但是警察同国家不一样,它不是阶级矛盾不可调和的产物。()
最新回复
(
0
)