首页
登录
职称英语
All over Europe, and in North America, there’re lakes and forests which are d
All over Europe, and in North America, there’re lakes and forests which are d
游客
2024-07-05
42
管理
问题
All over Europe, and in North America, there’re lakes and forests which are dead or (71) and the (72) is thought to be acid rain. What is acid rain? Mr. Justin Cook, a scientist, explains: "All fossil fuels, (矿物燃料),that (73) oil, coal and gas, contain sulphur. When these are burnt, for example (74) motor vehicles, they form sulphuric acid (硫酸)This (75) UP into the air, and soon it falls back to (76) , into lakes and (77) trees in forests." This can cause many local problems. 78 a result, lakes become acidic, fish disappear and trees are killed. The pollution is carried great distances by the wind, so sulphuric acid (79) in Britain can travel as far as Scandinavia (斯堪的纳维亚). Czech is one of the countries with the most acid rains and large areas of (80) consist only (81) dead trees.
Is there (82) that can be done about acid rain? Mr. cook says: "The rain (83) of acid rain is (84) power stations to install filters that (85) the acid getting out into the air. Here in Britain, the only (86) that has been taken is that the chimneys are built (87) so that the pollution is more distributed." If the petrol used in motor vehicles (88) lead--free, then it Would be possible to filter exhaust fuses (废气) which are a (89) cause of pollution. But these filter mechanisms (机械装置)can not work (90) the leads is removed. [br]
选项
A、is
B、was
C、were
D、be
答案
C
解析
这里我们应辨清这是一个表示假设情况的虚拟语气,表示“如果机动车辆是里用的是无铅汽油,那么过滤掉废气将是可能的……”。故不能选A项is,B项was以及D项be。
转载请注明原文地址:https://tihaiku.com/zcyy/3664079.html
相关试题推荐
ThereareseveralwaysinwhichAmericandiningcustomsaredifferentfromthose
ThereareseveralwaysinwhichAmericandiningcustomsaredifferentfromthose
ThereareseveralwaysinwhichAmericandiningcustomsaredifferentfromthose
Theworld’srainforestscoverlessthantenpercentoftheearth’ssurface,
WeweretalkingabouttheAmericantourist________wemetduringourtriptothe
IfyouareattendingbusinessmeetingsinAmerica,you’dbetter______.[br]Whi
IfyouareattendingbusinessmeetingsinAmerica,you’dbetter______.[br]Wha
IfyouareattendingbusinessmeetingsinAmerica,you’dbetter______.[br]The
IfyouareattendingbusinessmeetingsinAmerica,you’dbetter______.[br]Whe
WhendidthefamilycarbecomecommoninAmerica?Intheearly_________.[br]
随机试题
Theearningsofwomenarewellbelowthatofmen______educationaldifferences
[originaltext]Ladiesandgentlemen,Iamgladthatwearetogethertounder
TheroleofeyecontactinaconversationalexchangebetweentwoAmericans
SummaryListentothepassage.Forquestions26—30,completethenotesusingno
关于完全竞争市场的说法,正确的有()。 Ⅰ.所有企业都是价格的接受者
中学生小飞最近对网游很感兴趣,他对学校社会工作者说:“游戏里的声光、影像、情节、
衰减理论认为( )A.当信息通过过滤器时,不被注意的信息只是在强度上减弱了
根据我国《宪法》的规定,国家发展医疗卫生事业,发展( ),豉励和持备类组织举办
在现代市场经济中,借贷资本既有独立的运动规律,同时又为( )运动服务。A.金融
建设行政主管部门在审核发放()时,应当对建设工程是否有安全施工措施进行审查。A.
最新回复
(
0
)