考前冲刺:2021年考研英语模拟试题(2020-10-18)

发布时间:2020-10-18


目前,2021年考研初试备考时间已不足三个月,不知各位小伙伴复习的如何了?在最后阶段,我们最需要做的是了解考试,而试题练习无疑是非常不错的方法。为了帮助大家备考,51题库考试学习网在下面为大家带来考研初试的一些模拟试题,一起练起来吧。

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There have been rumors. There’s been gossip. All Hollywood is shocked to learn that Calista Flockhart, star of Fox’s hit TV show Ally McBeal, is so thin. And we in the media are falling all over ourselves trying to figure out whether Flockhart has an eating disorder, especially now that she has denied it. Well, I’m not playing the game. If the entertainment industry really cared about sending the wrong message on body image, it wouldn’t need so many slender celebrities in the first place.

But the fact remains that 2 million Americans—most of them women and girls—do suffer from eating disorders. In the most extreme cases they literally starve themselves to death. And those who survive are at greater risk of developing brittle bones, life-threatening infections, kidney damage and heart problems. Fortunately, doctors have learned a lot over the past decade about what causes eating disorders and how to treat them.

The numbers are shocking. Approximately 1 in 150 teenage girls in the U. S. falls victim to anorexia nervosa, broadly defined as the refusal to eat enough to maintain even a minimal body weight. Not so clear is how many more suffer from bulimia, in which they binge on food, eating perhaps two or three days’ worth of meals in 30 minutes, then remove the excess by taking medicine to move the bowels or inducing vomiting. Nor does age necessarily protect you. Anorexia has been diagnosed in girls as young as eight. Most deaths from the condition occur in women over 45.

Doctors used to think eating disorders were purely psychological. Now they realize there’s some problematic biology as well. In a study published in the Archives of General Psychiatry recently, researchers found abnormal levels of serotonin, a neurotransmitter in the brain, in women who had been free of bulimia for at least a year. That may help explain why drugs have allowed a lot of people to stop swallowing in large doses of food. Unfortunately, the pills don’t work as well for denial of food. Nor do they offer a simple one-stop cure. Health-care workers must re-educate their patients in how to eat and think about food.

How can you tell if someone you love has an eating disorder? “Bulimics will often leave evidence around as if they want to get caught.” Says Tamara Pryor, director of an eating-disorders clinic at the University of Kansas in Wichita. Anorexics, by contrast, are more likely to go through long periods of denial.

1. We can infer from the first paragraph that _____.

[A] the media has mislead the public’s view of celebrities

[B] there is much misunderstanding about eating disorders

[C] body image concerns are an indication of eating disorders

[D] the entertainment industry is combating eating disorders

2. The victims of eating disorders, more often than not, will _____.

[A] starve themselves to death

[B] suffer greatly from the complications

[C] puzzle doctors in the years to come

[D] recover completely with no aftereffects

3. The word “binge” (Line 3, Paragraph 3) most probably means _____.

[A] eat excessively [B] refuse to eat

[C] fail to digest [D] enjoy a good appetite

4. Bulimia is found to be _____.

[A] related to the level of serotonin

[B] psychological rather than biological

[C] identical with anorexia nervosa in the cure

[D] a leading cause of death among middle-aged women

5. The way to find a person with eating disorders _____.

[A] focuses on hidden symptoms

[B] varies with type of the condition

[C] is oriented at the victim’s response

[D] remains perplexing despite efforts made

答案

1.C 2.B 3.A 4.A 5.B

总体分析

本文主要介绍了两种饮食性疾患。

第一段:以一位明星的事例引出全文讨论的话题——饮食性疾患。

第二段至五段:介绍两种饮食性疾患(厌食症和暴食症)的危害、表现、治疗及判断方法。

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:目前2021年考研大纲已经公布,小伙伴们在复习时要注意以大纲为准哦。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。

图式

答案:
解析:
认知理论把图式定义为从心理学理解认知的基本构造单元。在皮亚杰认知发展理论中,图式是指一个有组织、可重复的行为模式或心理结构,是一种认知结构的单元,这些动作在相同或类似环境中不断重复而得到迁移或概括。图式来自遗传,之后在适应环境的过程中不断丰富和改变,经过同化、顺应、平衡演变成新图式。

属于小细胞低色素性贫血的是
A.骨髓增生异常综合征B.肝硬化贫血 C.溶血性贫血 D.铁粒幼细胞性贫血

答案:D
解析:
①小细胞低色素性贫血——铁粒幼细胞性贫血、缺铁性贫血、珠蛋白生成障碍性贫血、慢性病贫 血。②大细胞性贫血——巨幼细胞贫血、骨髓增生异常综合征、肝疾病、伴网织红细胞大量增生的溶血性贫血。③正常细胞性贫血——再生障碍性贫血、溶血性贫血、骨髓病性贫血、急性失血。

依据次数分布表所显示的次数如何产生,可区分为()

A.简单次数分布表
B.分组次数分布表
C.相对次数分布表
D.累加次数分布表
答案:A,B,C,D
解析:
描述统计;统计图表。 显示初步整理后一组数据的分布情况,它主要表示数据在各个分组区间内的散布情况。依据它所显示的次数如何产生,次数分布表可区分为简单次数分布表、分组次数分布 表、相对次数分布表、累加次数分布表、双列次数分布表、不等距次数分布表等。

最易发生血栓、栓塞并发症的肾病综合征是
A.微小病变型肾病 B.系膜增生性肾炎 C.系膜毛细血管性肾炎D.膜性肾病

答案:D
解析:
①微小病变型肾病病理改变轻微,对于糖皮质激素的治疗效果最好,有效率达90%左右。系膜增生性肾炎的有效率为50%左右。系膜毛细血管性肾炎治疗困难,糖皮质激素和细胞毒药物只对部分儿童病例有效。糖皮质激素+细胞毒药物对早期膜性肾病的缓解率为60% ~70%。②少数肾病综合征患者可出现急性肾衰竭,尤以微小病变型肾病者居多,可能与肾间质高度水肿压迫肾小管和大量管型堵塞肾小管有关(请注意:微小病变型肾病一般不发生肾衰竭,详见7版内科学P514)。③膜性肾病极易发生血栓、栓塞并发症,肾静脉血栓发生率高达40% ~50%。④血尿虽然不是肾病综合征的典型表现,但系膜毛细血管性肾炎患者几乎都伴有血尿,其中少数为肉眼血尿。

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