首页
登录
职称英语
DDT, the most powerful pesticide the world had ever known, exposednature’s
DDT, the most powerful pesticide the world had ever known, exposednature’s
游客
2024-11-07
28
管理
问题
DDT, the most powerful pesticide the world had ever known, exposed
nature’s vulnerability. Unlike most pesticides, which effectiveness is limited 【M1】______
to destroy one or two types of insects, DDT was capable of killing hun- 【M2】______
dreds of different kinds at once. Developed in 1939, it first distinguished
itself during World War II, cleaning South Pacific islands of malaria- 【M3】______
caused insects for U.S. troops, while in Europe being used as an effective 【M4】______
de-lousing powder. Its inventor was awarded by the Nobel Prize. 【M5】______
When DDT became available for civilian use in 1945, there were only
a few people who expressed the second thoughts about this new miracle 【M6】______
compound. One was nature writer Edwin Way Teale, who warned, ""A spray
as discriminate as DDT can upset the economy of nature as much as a revo- 【M7】______
lution upsets social economy. Ninety percent of all insects are good, but if 【M8】______
they are killed, things go out of kilter right away."" Another was Rachel Car
son, who wrote to the Reader’s Digest to propose an article about series of 【M9】______
tests on DDT being conducted not far from which she lived in Maryland. 【M10】______
The magazine rejected the idea. [br] 【M1】
选项
答案
which — whose
解析
whose在这里作关系限定词,与effectiveness构成名词词组在关系分句里作主语。whose的先行词既可以是人,也可指物或抽象概念,如:I saw some trees whose leaveswere black with disease.当whose指具体事物或抽象概念时,能与of which结构互换使用,但前者更普遍,如:This is an idea whose origin is to be found in Green philosophy.This is an idea the origin of which is to be found in Greek philosophy.
转载请注明原文地址:https://tihaiku.com/zcyy/3834734.html
相关试题推荐
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
随机试题
ThehistoryofAfrican-Americansduringthepast400yearsistraditionally
[originaltext]M:Shanika,thanksforjoiningustoday!W:Mypleasure.M:First
[originaltext]W:DidyouusecreditcardsonyourvacationlastmonthinEurope
Itseemslogical:Collegegraduateshavelowerunemploymentandearnmoreth
A.CKB.CK-MBC.LDD.MbE.cTn溶栓治疗中判断有无再灌注的较敏感
简述员工职业生涯规划设计的基本原则。
一线工人的绩效考评周期一般为()。 A.日度考评B.季度考评C.月度考评
元认知控制是运用{pz_填空}机制确保任务能成功地完成。
弗洛伊德学说在咨询心理学历史上属于()。单选(A)行为学派 (B)认知学派
作为网络节点上话务承载装置、交换级、控制和信令设备以及其他功能单元集合体的网络设
最新回复
(
0
)