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
Pesticides (杀虫剂) Why do pesticides(杀虫剂)fit into the picture of environmental disease? We have seen that they now pollute soi
Pesticides (杀虫剂) Why do pesticides(杀虫剂)fit into the picture of environmental disease? We have seen that they now pollute soi
admin
2011-01-05
91
问题
Pesticides (杀虫剂)
Why do pesticides(杀虫剂)fit into the picture of environmental disease? We have seen that they now pollute soil, water and food, that they have the power to make our streams fishless and our gardens and woodlands silent and birdless. Man, however much he may like to pretend the contrary, is part of nature. Can he escape a pollution that is now so thoroughly distributed throughout our world?
We know that even single exposures(暴露)to these chemicals, if the amount is large enough, can cause extremely severe poisoning. But this is not the major problem. The sudden illness or death of farmers, farm workers and others exposed to sufficient quantities of pesticides are very sad and should not occur. For the population as a whole, we must be more concerned with the delayed effects of absorbing small amounts of the pesticides that invisibly pollute our world.
Responsible public health officials have pointed out that the biological effects of chemicals are cumulative(积累的) over long periods of time, and that the danger to the individual may depend on the sum of the exposures received throughout his lifetime. For these very reasons the danger is easily ignored. It is human nature to shake off(摆脱) what may seem to us a threat of future disaster. "Men are naturally most impressed by diseases which have obvious signs", says a wise physician, Dr. Rene Dubos, "yet some of their worst enemies slowly approach them unnoticed. "
People tend to ignore the delayed effects of exposure to chemicals because
选项
A、limited exposure to them does little harm to people’s health______
B、the present is more important for them than the future
C、the danger does not become apparent immediately
D、humans are capable of withstanding small amounts of poisoning
答案
C
解析
本题考查考生把握细节的能力。考的是人们容易忽视化学药品慢性影响的原因。答案的线索在文章第三段一句话:Responsible public health officials have pointed out that the biological effects of chemicals are cumulative(积累的)over long periods of time,and that the danger to the individual may depend on the sum of the exposures received throughout his life-time.所以,正确答案是C。
转载请注明原文地址:https://kaotiyun.com/show/GIQd777K
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
Accordingtothepassage,physical,mental,andemotionalhealthareInShelton’seyes,tryingtoconvinceintelligentpeoplet
TheDangersofSecondhandSmokeMostpeopleknowthatcigarettesmokingisharmfultotheirhealth.Scientificresearchshow
TheFirstFourMinutesWhendopeopledecidewhetherornottheywanttobecomefriends?Duringtheirfirstfourminutestog
BillGates:UnleashingYourCreativityI’vealwaysbeenanoptimistandIsupposethatisrootedinmybeliefthatthepower
MostAdultsinUSHaveLowRiskofHeartDiseaseMorethan80percentofUSadultshavealessthan10-percentriskofdevel
KnowingYourRealPersonalityfromSleepingPositionsEveryonehasgottwopersonalities—theonethatisshowntotheworld
FoodSafetyandFoodborneIllnessesFoodsafetyisanincreasinglyimportantpublichealthissue.Governmentsalloverthew
TheStoryofLaniFive-year-oldLanistilltakessevenmedicineswithherbreakfasteverymorning."She’sverygoodaboutit
AreYoungGirlsOutofControlToday?Imagesonfashionmagazinesandtelevisionareconstantlypromotingsexintheiradver
ExerciseCanReplaceInsulinforElderlyDiabeticsMostolderpeoplewithso-calledtypeIIdiabetescouldstoptakinginsul
随机试题
改善焊缝金属凝固结晶组织的有效方法之一是()。
中晚期食管癌的髓质型主要形态特征是
心绞痛与急性心肌梗死临床表现的主要鉴别点是()
最概然速率vp的物理意义是()。
铁路运输装(卸)车线一般设在平道或坡度不大于()‰的坡道上,设在窄轨不大于()‰的坡道上。
在评估债券基本价值前,我们假定各种债券的名义和实际支付金额都是确定的,通货膨胀的幅度可以精确地预测出来。()
依据新的
美国通用电气公司是美国、也是世界上最大的电器和电子设备制造公司,它的产值占美国电工行业全部产值的l/4左右。通用电气公司的总部位于美国康涅狄格州费尔菲尔德市。GE公司由多个多元化的基本业务集团组成,如果单独排名,有13个业务集团可名列《财富》杂志500强。
Ialwayseatbreakfast,andsuggestthatyoudotoo.Weallneedfoodinthemorningtosupplyourselves【C1】________sourcesofg
我们一得出结论就通知你。
最新回复
(
0
)