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
Why are the lives of plants not well-known to most people?
Why are the lives of plants not well-known to most people?
admin
2013-10-11
57
问题
Why are the lives of plants not well-known to most people?
Although our lives depend on plants for virtually everything that keeps us alive, their lives remain a secret to most of us. The reason is simple — [11B] plants live on a different time-scale from ours. Although not usually obvious in the relatively hyperactive activities of humans, plants are in constant motion as they develop, search for light and nutrients, avoid predators, exploit neighbors, and reproduce.
Time-lapse photography allows us to easily see the movements of plants and clearly demonstrates that plants are living organisms capable of some extraordinary things. [12A] Time-lapse photography is done by capturing a series of images at intervals ranging from seconds to hours apart. When the images are viewed in rapid succession, much like a flip book, the effect is to compress into a short period, the changes that occurred over a relatively long period of time. The movies on this site show a variety of plants living out their dynamic lives. While we especially hope this site provides material that may captivate the interest of budding plant biologists, even the seasoned plant biologists will find interesting material. New movies will be added to the site as we make or obtain them. However, since making time-lapse movies requires considerable patience, time, and some luck, the rate at which new movies will appear is unpredictable. [13D]Other educational materials are also becoming available on the site. In the meantime, we hope you enjoy the material that is available now.
选项
A、Because plants are not important to people.
B、Because plants’ time-scale is different from ours.
C、Because plants are not in constant motion.
D、Because it is impossible for people to know it.
答案
B
解析
文章一开始就明确提到,人们不是十分了解植物生命活动的事实,原因是plants live on adifferent time-scale from ours(植物活动的时间节奏与人类不同)。
转载请注明原文地址:https://kaotiyun.com/show/11GK777K
0
专业英语四级
相关试题推荐
EachdayofEarthWeek,forexample,hasbeengivenovertoaseparateenvironmentalissue.Theyare,【C1】______,energyeffici
WhowontheWorldCup1998footballgame?WhathappenedattheUnitedNations?Howdidthecriticslikethenewplay?【C1】______
Anewstudyofthebrainishelpingscientistsbetterunderstandhowhumansprocesslanguage.Oneofthepatientsisawomanwit
Accordingtothepassage,whenshouldwedowhennovelideasappear?
Surelyprogressofaparticularkindisactuallytakingplacearoundusandisbecomingmoreandmore
4.Accordingtothepassage,thefocusofyoungcollegestudents’concernsabouthealthismainlyon
Theenvironmentiseverythingthatsurroundsus:plants,animals,buildings,country,air,water—literallyeverythingthatcana
OnlineFreeLibraryBooksareahighcostofhighereducation./ButtheGlobalTextProjecthopestocreateafreelibrary
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
Theattendantswhoare______managedtocopewithmewithoutbeingabletospeakEnglish.
随机试题
去年张经理让我做一些苏拿镜片目录的整理工作,就是按照原有英文说明把它全部编辑成中文的。张经理之前给我讲了具体的要求,我听完之后觉得很简单,没有做进一步的深入研究就开始整理了。在整理过程中因为一些客观原因也为了加快工作的进程,在遇到一些不是很清楚的地方时,我
A.癫病B.无神C.狂病D.假神E.痫病闷闷不乐,继则精神发呆,哭笑无常为()。
A.乙类非处方药B.甲类非处方药C.处方药D.“双跨”药品无需处方即可购买和使用,且药品标签印有绿色专有标识的药品是
患者,女性,28岁,糖尿病史已10余年,身高160cm,体重45kg,护理体检:下肢水肿,查血糖12mmol/L,尿糖(+++),尿蛋白(+++),血尿素氮和肌酐正常病人可能并发了
汉译英:“船舶;车辆”,正确的翻译为()。
行政处罚+行政复议2011年12月,甲市乙县国税局对锦绣服装公司进行税务检查时发现,该公司一笔账务处理异常。乙县国税局认为,该公司购进的某批布料用于非应税项目,其进项税额276000元不应抵扣。乙县国税局决定:依法追缴该公司少缴的增值税税款,并加收相应的滞
某公司的固定成本(包括利息费用)为1200万元,资产总额为20000万元,资产负债率为60%,负债平均利息率为5%,净利润为1500万元,该公司适用的所得税税率为25%,则息税前利润对销售量的敏感系数是()。
某单位每年生活用水占总用水量的。2010年通过行政、技术、经济等手段加强用水管理,调整用水结构,改进用水方式,科学、合理、有计划、有重点地用水,提高水的利用率,仅牛活用水一项就节约了5000吨,减少了。问该单位2009年总用水量是多少?()
设A=,X是2阶方阵.(Ⅰ)求满足AX一XA=O的所有X;(Ⅱ)方程AX一XA=E,其中E是2阶单位阵.问方程是否有解?若有解,求满足方程的所有X;若无解,说明理由.
下图所示的程序流程图中有_______条不同的简单路径,采用McCabe度量法计算该程序图的环路复杂性为_______。(35)
最新回复
(
0
)