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
Next time you gaze outside【C1】______ a cold winter day and think how dead everything appears, take a closer look. Nature ma
Next time you gaze outside【C1】______ a cold winter day and think how dead everything appears, take a closer look. Nature ma
admin
2010-02-17
66
问题
Next time you gaze outside【C1】______ a cold winter day and think how dead everything appears, take a closer look.
Nature may not be at its【C2】______ in January and February, but it may be the best time to observe amazing adaptations and appreciate the diversity of life even when the temperature falls【C3】______ freezing.
Skunks, chipmunks, and black bears are among the few animals to semi-hibernate during the winter.
The woodchuck is a true hibernator. Many animals【C4】______ to escape the cold. Reptiles may migrate Several inches down into leaf litter or the mud at the bottom of a pond,【C5】______ fish may swim and feed below the ice. Other animals stay active throughout the winter months.
Animal tracks and signs are an excellent【C6】______ to learn about wildlife in winter. Gnawed bark, active lodges, stray feathers, diggings in the ground, urine or scat, or holes in the ice give clues to activity, whether it’s foraging, hunting for prey, finding shelter, or looking for a mate.
Tracks are【C7】______ by their size and shape, the number of toes, the stride, and the mode of locomotion (walking, bounding, galloping, or wadding).
Blowing leaves, cones, or seeds along with falling or rolling snow can also【C8】______ interesting tracks and trails on the snow.
Tracking conditions【C9】______ with the type and amount of snow it’s best to look along the edge of a habitat, such as【C10】______ a forest meets a field, or near water’s edge. Unmelted and undrifted snow provides the clearest tracks. Watch for bird tracks, too, including wing marks: when tracks stop abruptly, the bird probably took【C11】______
Evidence of insects is also plentiful during the winter. Many insects, with their variety of adaptations, over winter in one of their developmental (sub-adult) stages as either eggs or pupae and emerge in the spring. Insects also have their own version of hibernation in【C12】______ weather, a resting stage called diapause. For some insects, the ratio of light to dark may signal them to migrate to stable environments beneath the ground, below the water’s surface, or into deep water.
Other animals seek protection under the insulating blanket of winter snow. Snow hides prey from 【C13】______ and 【C14】______ dormant plants, insects, and small mammals. Deeper snow requires more energy to move through, but makes it easier for smaller animals to reach buds on tree branches.
Plants also【C15】______ to cold weather with a wide variety of survival techniques. Winter weeds that look dead and dry may have【C16】______ roots underground. Some disperse their seeds on winter winds or produce burs full of【C17】______ that get【C18】______ on the fur of passing animals.
Trees don’t completely stop growing in winter【C19】______ , but they control the growth of their buds and 【C20】______ to the cold and lack of moisture by protecting their buds with scales.
【C9】
选项
A、change
B、alter
C、vary
D、switch
答案
C
解析
单词vary一般表示在一定的范围内的变动或波动。如种类、大小、颜色、价格等不同变化。
转载请注明原文地址:https://kaotiyun.com/show/FvnK777K
0
专业英语四级
相关试题推荐
PassageOne(1)Hehadallowedhertofreeherself;andinaminuteortwothemilkingofeachwasresumed.Nobodyhadbehe
PassageFourWhatdoesthedescriptionofthecurrentU.K.inflationimply?
PassaaeFourWhenmostanimalsdie,naturelikestotidyupbymakingtheirbodiesdisappear.Theremainsgeteatenbyscave
PassageThreeWhatdoes"tothinkoutsidethebox"meanfigurativelyinPara.9?
Hewasafunnylookingmanwithacheerfulface,good-naturedandagreattalker.Hewasdescribedbyhisstudent,thegreatphi
Antsfoodforthewinter.
Themandidn’tputhisluggageoutsidethedoorontimebecause
Oneofthemysteriesofnatureisanimalcommunication.Creaturesoftheseamovethroughtheirliquidelementwithoutanyhear
Oneofthemysteriesofnatureisanimalcommunication.Creaturesoftheseamovethroughtheirliquidelementwithoutanyhear
随机试题
[2013]甲公司是一家生产和销售家电产品的上市公司,2012年4月,ABC会计师事务所首次接受委托,审计甲公司2012年度财务报表,委派A注册会计师担任项目合伙人。资料五:A注册会计师在审计工作底稿中记录了评估错报及处理重大事项的情况,部分内容
《菉竹山房》的作者是( )
IwasonlyeightyearsoldwhentheSecondWorldWarended,butIcanstillremembersomethingaboutthecelebrationsinthesma
A.可以在大众传播媒介进行广告宣传B.只能在专业期刊进行广告宣传C.不得进行任何形式的广告宣传D.停止广告发布,处以罚款E.只准在大众传播媒介进行广告宣传
简述高血压急症的治疗原则。
上诉不加刑是我国二审程序的一项原则,关于这一原则的理解,下列表述正确的有:
采用单价法和实物法编制施工图预算的主要区别是()。
期间账户按会计期间归集收入和费用,所以不同期间的收入和费用不能在同一期间记录。()
下列各项中,应征收印花税的有()。
社会保障制度主要包括()。
最新回复
(
0
)