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
30
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
Readthefollowingextractfromanarticleabouthumanresource,andthequestio
[originaltext]ThefirstpostalserviceinNorthAmericabeganinNewEngla
患儿女,12岁。因呕吐、腹痛、嗜睡3天加重伴昏迷8小时来院急诊。一周前因受凉后发
押品管理流程包括( )。A.材料受理 B.押品价值评估 C.抵质押权的设立
某校食堂数十人进食海虾后6小时,陆续出现上腹部疼痛,大便为水样或血水样。你认为最
下列各项,不属于四逆汤证临床表现的是A.四肢厥逆B.腹痛下利C.脉弦有力D.面色
共用题干 WarmPeopleLikelytoKeepColdat
选项的四个图形中,只有一个是由题干四个图形拼合(只能通过上、下、左、右平移),请
不锈钢制品与我们的日常生活密切相关,不锈钢的主要组成元素是()A.铜、锌
A公司2018年度制造费用预算的明细项目如下: (1)间接人工:基本工资为3
最新回复
(
0
)