手机APP下载

您现在的位置: 首页 > 英语四级 > 英语四级阅读 > 历年四级阅读真题 > 正文

2018年12月英语四级阅读真题及答案 第1套 仔细阅读2篇

来源:可可英语 编辑:max   VIP免费外教试听课 |  可可官方微信:ikekenet

Passage One
Questions 46 to 50 are based on the following passage.

California has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their distribution system. The problem is growing as the population of the state continues to expand. New research has found deep water reserves under the state which could help solve their drought crisis. Previous drilling of wells could only reach depths of 1,000 feet, but due to new pumping practices, water deeper than this can now be extracted (抽取). The team at Stanford investigated the aquifers(地下蓄水层)below this depth and found that reserves may be triple what was previously thought.

It is profitable to drill to depths more than 1,000 feet for oil and gas extraction, but only recently in California has it become profitable to pump water from this depth. The aquifers range from 1,000 to3,000 feet below the ground, which means that pumping will be expensive and there are other concerns. The biggest concern of pumping out water from this deep is the gradual setting down of the land surface. As the water is pumped out, the vacant space left is compacted by the weight of the earth above.

Even though pumping from these depths is expensive, it is still cheaper than desalinating(脱盐)the ocean water in the largely coastal state. Some desalination plants exist where feasible, but they are costly to run and can need constant repairs. Wells are much more reliable sources of freshwater, and California is hoping that these deep wells may be the answer to their severe water shortage.

One problem with these sources is that the deep water also has a higher level of salt than shallower aquifers. This means that some wells may even need to undergo desalination after extraction, thus increasing the cost. Research from the exhaustive study of groundwater from over 950 drilling logs has just been published. New estimates of the water reserves now go up to 2,700 billion cubic meters of freshwater.

46. How could California's drought crisis be solved according to some researchers?
A) By building more reserves of groundwater.
B) By drawing water from the depths of the earth.
C) By developing more advanced drilling devices.
D) By upgrading its water distribution system.
47. What can be inferred about extracting water from deep aquifers?
A) It was deemed vital to solving the water problem.
B) It was not considered worth the expense.
C) It may not provide quality freshwater.
D) It is bound to gain support from the local people.
48. What is mentioned as a consequence of extracting water from deep underground?
A) The sinking of land surface.
B) The harm to the ecosystem.
C) The damage to aquifers.
D) The change of the climate.
49. What does the author say about deep wells?
A) They run without any need for repairs.
B) They are entirely free from pollutants.
C) They are the ultimate solution to droughts.
D) They provide a steady supply of freshwater.
50. What may happen when deep aquifers are used as water sources?
A) People's health may improve with cleaner water.
B) People's water bills may be lowered considerably.
C) The cost may go up due to desalination.
D) They may be exhausted sooner or later.

重点单词   查看全部解释    
vital ['vaitl]

想一想再看

adj. 至关重要的,生死攸关的,有活力的,致命的

联想记忆
X
单词vital 联想记忆:
vit生命,al:极其重要的;充满活力的
 
sacrifice ['sækrifais]

想一想再看

n. 牺牲,供俸,祭品
vt. 牺牲,祭祀,贱

联想记忆
X
单词sacrifice 联想记忆:
sacr是“神圣的词根
 
intelligent [in'telidʒənt]

想一想再看

adj. 聪明的,智能的

 
distinguish [dis'tiŋgwiʃ]

想一想再看

vt. 区别,辨认,使显著

联想记忆
X
单词distinguish 联想记忆:
dis分开,sting刺-以刺眼的记号明白分开-区分
 
outcome ['autkʌm]

想一想再看

n. 结果,后果

 
potential [pə'tenʃəl]

想一想再看

adj. 可能的,潜在的
n. 潜力,潜能

 
quality ['kwɔliti]

想一想再看

n. 品质,特质,才能
adj. 高品质的

 
routine [ru:'ti:n]

想一想再看

n. 例行公事,常规,无聊
adj. 常规的,

联想记忆
X
单词routine 联想记忆:
rout[=route常走的道路]+ine表名词,“状态,药物等”→常规
 
population [.pɔpju'leiʃən]

想一想再看

n. 人口 ,(全体)居民,人数

联想记忆
X
单词population 联想记忆:
popul人民+ation→人口
 
pump [pʌmp]

想一想再看

n. 泵,抽水机,打气筒,抽水,打气
v. 打

 


新东方英语四级网络课程:试听更多英语四级网络课程>>

发布评论我来说2句

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。