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
31
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] 【M4】
选项
答案
caused — causing
解析
动词的-ed分词和-ing分词作名词修饰语时,-ed分词表示的是动词和所修饰名词间的被动关系,而-ing形式表示的则是主动关系,此句中malaria-causing insects相当于in-sects that caused malaria,因此是主动关系,所以应选择一ing形式。详细说明请参照本书第37页关于动词的-ed分词和-ing分词区别的解释。
转载请注明原文地址:https://tihaiku.com/zcyy/3834737.html
相关试题推荐
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
DDT,themostpowerfulpesticidetheworldhadeverknown,exposednature’s
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
LanguageandHumanityLanguageispowerfula
随机试题
Theworldisnotonlyhungry,butthirstyforwater.Thatmayseem【B1】______
AtomicPowersStationsoutatSeaMayBeBetterthanInlandOnes[A]Af
“四个革命、一个合作”能源发展新战略中,“四个革命”是指推动能源(),抑制不
击鼓说唱俑表现了古时候艺人表演时的情景,请问它是哪个朝代的作品()A.宋朝
患者,男,68岁。家属代诉:患者于今日下午外出散步,突然昏仆,不省人事,半身不遂
A.亚安培南B.氨曲南C.克拉维酸D.头孢氨苄E.头孢克洛可抑制β内酰胺酶活性
DIC最常见的病因是A.肿瘤性疾病 B.感染性疾病 C.广泛性手术 D.产
2005年2月19日,胡锦涛同志在中央党校部级主要领导干部“提高构建社会主义和谐
材料1 随着工业革命的发展,职业病开始受到人们的关注。工业革命初期,与机器生
A.酞丁安 B.双氯芬酸 C.益康唑 D.羟苄唑 E.醋酸可的松流行性出
最新回复
(
0
)