考前冲刺：2021年考研英语阅读理解模拟试题(2020-10-09)

发布时间：2020-10-09

最近，有小伙伴在询问最后阶段，考研英语该如何备考才最有效。最后阶段，我们应该将备考的重点放在复习和了解考试上，多去练习历年真题和模拟试题。下面，51题库考试学习网为大家带来考研初试的一些模拟试题，一起来看看吧。

英学业间断期

Talk to any parent of a student who took an adventurous gap year (a year between school and university when some students earn money, travel, etc.) and a misty look will come into their eyes. There are some disasters and even the most motivated, organised gap student does require family back-up, financial, emotional and physical. The parental mistiness is not just about the brilliant experience that has matured their offspring; it is vicarious living. We all wish pre-university gap years had been the fashion in our day. We can see how much tougher our kids become; how much more prepared to benefit from university or to decide positively that they are going to do something other than a degree.

Gap years are fashionable, as is reflected in the huge growth in the number of charities and private companies offering them. Pictures of Prince William toiling in Chile have helped, but the trend has been gathering steam for a decade. The range of gap packages starts with backpacking, includes working with charities, building hospitals and schools and, very commonly, working as a language assistant, teaching English. With this trend, however, comes a danger. Once parents feel that a well-structured year is essential to their would-be undergraduate’s progress to a better university, a good degree, an impressive CV and well paid employment, as the gap companies’ blurbs suggest it might be, then parents will start organising—and paying for—the gaps.

Where there are disasters, according to Richard Oliver, director of the gap companies’ umbrella organisation, the Year Out Group, it is usually because of poor planning. That can be the fault of the company or of the student, he says, but the best insurance is thoughtful preparation. “When people get it wrong, it is usually medical or, especially among girls, it is that they have not been away from home before or because expectation does not match reality.”

The point of a gap year is that it should be the time when the school leaver gets to do the thing that he or she fancies. Kids don’t mature if mum and dad decide how they are going to mature. If the 18-year-old’s way of maturing is to slob out on Hampstead Heath soaking up sunshine or spending a year working with fishermen in Cornwall, then that’s what will be productive for that person. The consensus, however, is that some structure is an advantage and that the prime mover needs to be the student.

The 18-year-old who was dispatched by his parents at two weeks’ notice to Canada to learn to be a snowboarding instructor at a cost of ￡5,800, probably came back with little more than a hangover. The 18-year-old on the same package who worked for his fare and spent the rest of his year instructing in resorts from New Zealand to Switzerland, and came back to apply for university, is the positive counterbalance.

1. It can be inferred from the first paragraph that parents of gap students may_____.

[A] help children to be prepared for disasters [B] receive all kinds of support from their children

[C] have rich experience in bringing up their offspring [D] experience watching children grow up

2. According to the text, which of the following is true?

[A] the popularity of gap years results from an increasing number of charities.

[B] Prince William was working hard during his gap year.

[C] gap years are not as fashionable as they were ten years ago.

[D] a well-structured gap year is a guarantee of university success.

3. The word “packages” (Line 3, Paragraph 2) means_____.

[A] parcels carried in travelling [B] a comprehensive set of activities

[C] something presented in a particular way [D] charity actions

4. What can cause the disasters of gap years?

[A] Intervention of parents. [B] Careful planning. [C] Good health. [D] Realistic expectation.

5. An 18-year-old is believed to take a meaningful gap year when he/she_____.

[A] lives up to his/her parents’ expectations [B] spends time being lazy and doing nothing

[C] learns skills by spending parents’ money [D] earns his or her living and gains working experience

答案：1.D 2.B 3.B 4.A 5.D

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：2021年考研正式报名已经开始，在预报名阶段未来得及报名的小伙伴要注意了。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。

答案：D

解析：

关于肾重吸收和分泌K+的叙述，正确的是
A.近端肾小管重吸收25%?30%的K+ B.髓袢重吸收65%?70%的K+
C.远端肾小管分泌K+，但不重吸收K+ D.远曲小管分泌K+受醛固酮调节

答案：D

解析：

小管液中的K+有65%?70%在近端小管重吸收，25%?30%在髓袢重吸收，这些部位对K+的重吸收比例是比较固定的。远端小管和皮质集合管既能重吸收K+，也能分泌K+，并可接受多种因素的调节。醛固酮可以促进远曲小管通过Na+-K+交换的形式促进K+的分泌。

男性，10岁。右足底被铁锈钉刺伤10天，突然出现张口困难，继之出现苦笑面容，角弓反张，声响及触碰病人可诱发肌痉挛，病人神志清楚，不发热。
该病致病菌属于
A.革兰染色阴性大肠埃希菌 B.革兰染色阴性厌氧拟杆菌
C.革兰染色阳性厌氧芽胞杆菌 D.革兰染色阳性球菌

答案：C

解析：

①伤后10天出现张口困难、苦笑面容、角弓反张，轻微刺激可诱发肌痉挛，可诊断为破伤风。破伤风是由破伤风梭菌引起的特异性感染。破伤风梭菌是一种革兰染色阳性的梭状芽胞杆菌，是厌氧菌，只能在狭深伤口的无氧环境中繁殖生长。在缺氧环境中，破伤风梭菌的芽胞发育成增殖体，迅速繁殖并产生大量外毒素（痉挛毒素）和溶血毒素。主要是痉挛毒素引起病人产生一系列的临床症状和体征。可见，破伤风是一种毒血症。②破伤风的典型临床表现是在肌紧张性收缩的基础上阵发性强烈痉挛，若呼吸肌、膈肌受累，则可导致患者窒息死亡，因此本病对机体威胁最大的是持续的呼吸肌痉挛。尽管持续性肌痉挛可导致肌肉断裂、骨折等并发症，但都不是最严重的并发症。

竞争性市场下有一个买者和一个卖者，卖者的边际成本为常数，MC=10。买者购买第q个单位产品的边际收益为MR =210-q。买者和卖者共同决定交易价格p。在此交易价格下，交易量为买者愿意买的和卖者愿意卖出量中的最小者。p和q在什么条件下使买者和卖者的利润和最大？

答案：

解析：

买者与卖者的利润函数之和为：