考前必看:2021年考研英语理学类阅读理解模拟题及答案(六)
发布时间:2020-10-12
英语是考研初试当中比较拉分的科目,历来令不少考生又爱又恨。许多考生的英语都有很大的进步空间,因此英语该如何学就成为了众多考生关心的重点。想要学好英语,实战经验很重要。下面,51题库考试学习网为大家带来考研初试英语科目的一些模拟试题,正在备考的小伙伴赶紧练起来吧。
If you wanted to question whether global
warming is indeed upon us, last
week was not the time to do it. Two weeks before the official beginning of
summer, a heat wave baked
the eastern third of the U.S. and Canada, driving temperatures high into the 90s and even 100s. At the same
time, a flurry of
scientific papers was released that seemed to explain all the late-spring
suffering. In one study, French
researchers reported that heat-trapping greenhouse gases are at their highest
levels in 420,000 years. In
another, U.S. scientists
found that 57 species of butterfly may be altering their migratory patterns in
response to changing heat patterns.
In light of all this, a sweltering public must have been
convinced at last that it\'s time to do something to cool off the overheated
planet, right? Wrong. Even
as the temperature was climbing, a new
survey by the American Geophysical Union found that Americans are less
concerned than ever about combatting global warming. “The more we talk about warming,” says the study\'s director, John Immerwahr, “the [more the]
public\'s concern goes down.”
Such an environmental disconnect may not be
much of a mystery. Environmentalists complain that over the past two years
industry groups have launched a coordinated advertising campaign to torpedo the
1997 Kyoto treaty, which requires
industrial nations to reduce greenhouse emissions. More than $13 million has
been spent on ads to block ratification of the treaty by the U.S. Senate. “The purpose of the ads was to convince
most Americans that there isn\'t a problem or that it\'s too expensive to fix,” says National Environmental Trust
spokesman Peter Kelly.
Environmentalists also criticize President
Clinton for what they believe is his failure to press the issue. Only last week, Clinton moved for Kyoto treaty changes
that environmental groups see as industry-pleasing loopholes. Says Daniel Weiss, the Sierra Club\'s political director: “Timid leaders
communicate hopelessness.” And
hopelessness breeds indifference. If such popular so-whating persists, Immerwahr warns, the public may begin grasping at phony
solutions to global warming. At the end of last week, some people took comfort from the report
of a vast haze of pollutants that collects over the Indian Ocean in the winter, but that researchers only recently
studied. Filthy as the cloud is, it
does deflect solar radiation, and
that could lead to cooling. But scientists warn that we cannot simply pollute
our way out of global warming. The soot drops from the hazy atmosphere in weeks, whereas greenhouse gases remain for
centuries.
The way out of this gridlock, environmentalists say, is to show it\'s possible to reduce
greenhouse gases without sinking the economy. Solutions include cleaner cars
and better wind- and solar-power technologies. Says Greg Wetstone, program director for the Natural
Resources Defense Council: “When these kinds of options become available, people will feel less hopeless.” Of course, it\'s also possible that only when people feel less hopeless will
they press their leaders to make the solutions available.
注(1):本文选自Time;06/21/99, p62, 3/4p, 2c.
注(2):本文习题命题模仿对象1998年text2和1997年text3第4题
1. According to the author, global warming is ___________.
[A] causing a lot of trouble
[B] not as serious as it seems
[C] felt only in America and Canada
[D] what accounts for the high level of
greenhouse gases
2. Speaking of global warming, American public is ______________.
[A] concerned
[B] indifferent
[C] worried
[D] frightened
3. The public‘s reaction to global warming is mainly a result of _____________.
[A] their disbelief of the existence of
such problem
[B] the advertising campaign of industrial
groups
[C] the high cost of fixing the problem
[D] American Senate‘s disapproval of Kyoto treaty
4. Which of the following is NOT mentioned
in the passage?
[A] Environmentalists urge President
Clinton administration to press the issue.
[B] Kyoto treaty aims at curbing the global
warming problem.
[C] American government is partly
responsible for the public‘s
attitude toward global warming.
[D] Industrial groups do not care about
global warming.
5. It can be inferred from the passage that
_____________.
[A] environmentalists support the idea of
solving global warming through pollution
[B] the poor leadership of American
President has produced a very bad influence
[C] American economy will suffer if global
warming is curbed
[D] people have no confidence in solving
problem of global warming
答案:A B B A B
以上就是51题库考试学习网为大家带来的全部内容,希望能给大家一些帮助。51题库考试学习网提醒:在最后阶段,调整自己的心态也是非常重要的,每年都有考生临考前放弃,所以小伙伴们要注意不要给自己太大的压力哦。另外,小伙伴们如果还有其他关于考研信息的疑问,也可以留言咨询哦。
下面小编为大家准备了 研究生入学 的相关考题,供大家学习参考。
下列化验中,对诊断最有意义的是
B.血沉
C.血清免疫球蛋白
D. AFP
[分析]该患者有乙型肝炎后肝硬化,近2周出现肝区胀痛、低热、消瘦和黄疸,为了解腹部(特别是肝脏)病变情况,应首选腹部B超,简便易行,而且价格便宜,其余检查均不首选;肝炎后肝硬化患者有上述症状,又有肝大、质硬和表面不光滑,因此最可能的诊断是原发性肝癌,其余诊断均不支持;化验AFP对原发性肝癌的诊断最有意义,阳性率达70%~90%,AFP检查诊断肝癌的标准为:①AFP>50μg/L持续4周;②AFP由低浓度逐渐升高不降;③AFP>200μg/L的中等水平持续8周。
A.低血糖B.高血糖
C.低血脂 D.高血脂
[考点]生长素分泌的调节
[分析]腺垂体分泌生长素主要受下丘脑调节肽的调节及反馈调节,但还受其他因素的影响,例如血中糖、氨基酸与脂肪酸均能影响生长素的分泌,其中以低血糖对生长素分泌的刺激作用最强。
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