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
The problem of acid rain originated with the Industrial Revolution, and it has been growing ever since. The more accurate scie
The problem of acid rain originated with the Industrial Revolution, and it has been growing ever since. The more accurate scie
admin
2014-04-17
59
问题
The problem of acid rain originated with the Industrial
Revolution, and it has been growing ever since. The more
accurate scientific term of " acid rain" would be " acid
deposition". The dry form of such deposition is just damaging【M1】______
to the environment as the liquid form. The severity of its effects
has long been recognized in local settings, exemplified by the【M2】______
spells of acid smog in heavy industrialized areas. The widespread【M3】______
destructiveness of acid rain, moreover, has become evident only【M4】______
in recent decades. One large area has been studied extensively【M5】______
is northern Europe, where acid rain has eroded structures, injured
crops and forests, and threatened life in freshwater lakes. In 1984,
for example, environmental reports indicated that almost half of
the trees in Germany’s Black Forest has been damaged by acid【M6】______
rain. The northeastern United States and eastern Canada have
also been particularly effected by this form of pollution; damage【M7】______
has also been detected in other areas of these countries and
other regions of the world.
Industrial emissions have been blamed as the major cause
of acid rain. Because the chemical reactions involved in the
production of acid rain in atmosphere are complex and as yet【M8】______
little understood, industries have tended to challenge such
assessments and to stress the need of further studies; and【M9】______
because of the cost of pollution reduction, governments have
tended to support this attitude.
Studies released by the US government in the early 1980,【M10】______
however, strongly indicated industries as the main source of
acid rain, in the eastern US and Canada.
【M6】
选项
答案
has→had
解析
语法错误。此句中主句的谓语indicated是过去式,根据时态一致原则,从句中应当使用过去完成时或一般过去时,又因为从句的动作发生在主句动作之前,所以此处应为过去完成时。
转载请注明原文地址:https://kaotiyun.com/show/WhpO777K
0
专业英语八级
相关试题推荐
Fast-foodfirmshavetobeathick-skinnedbunch.Healthexpertsregularlylambastethemforpeddlingfoodthatmakespeoplefat
Accordingtothenewsitem,peoplecangetthefollowinghelpfromtheHIV/AIDScampsEXCEPT
WheredotheworstaccidentshappenaccordingtoKiplinger’sPersonalFinancemagazine?
WheredotheworstaccidentshappenaccordingtoKiplinger’sPersonalFinancemagazine?
WheredotheworstaccidentshappenaccordingtoKiplinger’sPersonalFinancemagazine?
AtatimewhenatoweringpersonalitylikeMme.Curiehascometotheendofherlife,letusnotmerelyrestcontentrecalling
Somepeoplethinkthatwiththedevelopmentoftechnology,ourtraditionalcultureswillevaporate.Whatdoyouthink?Writean
A、Torevolutionizeresearchanddevelopspeed.B、Torevolutionizetravelandshatterspeedrecords.C、Torevolutionizeflightan
AccordingtoSeanGallagher,oneofthereasonsforhiscompanytochoosethesiteisthat______.
Job-hoppingNowadays,theone-companyindividualnolongerexists,andtheattitudetowardsjob-hoppingis(1)______fromthe
随机试题
为了支持压栈线程与弹栈线程之间的交互与同步,在程序的下画线处依次填入的语句是()。publicclassIntStack{privateintidx=0;privateint[]data=newint[8];pub
有关门静脉高压症的手术分类错误的是
下列各项中,哪种药物属于中枢神经抑制剂解毒药
患者,女性,31岁。左上第二磨牙因龋致牙髓炎,患牙在根管治疗过程中的工作长度具体指()
A.头后部B.前额部C.眉棱骨D.巅顶部E.头之两侧太阳头痛的部位在()
女性,35岁,既往风湿性关节炎病史10年,劳累后心悸、气促4年,近来加重,夜间不能平卧,查体:心尖部舒张期隆隆样杂音。肺底可听到细小水泡音,腹胀,双下肢水肿该患者的可能诊断为
《环境空气质量标准》最初于1982年制定,经1996年修订和2000年发布的相应修改单后,形成现在的()污染物的空气质量标准。
下列关于“程序”的理解,正确的是()。
申请登记民办非企业单位应具备()条件。
【印度国民经济学派】
最新回复
(
0
)