考前冲刺:2021年考研英语完形填空精选练习题(三)

发布时间:2020-10-11


2021年考研初试备考还有最后的近三个月时间,相信大家也都在紧张的复习当中。在复习时,多做练习题可以让我们更加了解考试内容。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,正在备考的小伙伴赶紧练起来吧。

Generally speaking, a British is widely regarded as a quiet, shy and conservative person who is ___1___ only among those with whom he is acquainted. When a stranger is at present, he often seems nervous, ___2___ embarrassed. You have to take a commuter train any morning or evening to ___3___ the truth of this. Serious-looking businessmen and women sit reading their newspapers or dozing in a corner; hardly anybody talks, since to do so would be considered quite offensive. ___4___, there is an unwritten but clearly understood code of behavior which, ___5___ broken, makes the offender immediately the object of ___6___.

It has been known as a fact that the a British has a ___7___ for the discussion of their weather and that, if given a chance, he will talk about it ___8___. Some people argue that it is because the British weather seldom ___9___ forecast and hence becomes a source of interest and ___10___ to everyone. This may be so. ___11___ a British cannot have much ___12___ in the weathermen, who, after promising fine, sunny weather for the following day, are often proved wrong ___13___ a cloud over the Atlantic brings rainy weather to all districts! The man in the street seems to be as accurate——or as inaccurate——as the weathermen in his ___14___.

Foreigners may be surprised at the number of references ___15___ weather that the British make to each other in the course of a single day. Very often conversational greetings are ___16___ by comments on the weather. "Nice day, isn\'t it?" "Beautiful!" may well be heard instead of "Good morning, how are you?" ___17___ the foreigner may consider this exaggerated and comic, it is worthwhile pointing out that it could be used to his advantage. ___18___ he wants to start a conversation with a British but is ___19___ to knowswheresto begin, he could do well to mention the state of the weather. It is a safe subject which will ___20___ an answer from even the most reserved of the British.

1. A. relaxed B. frustrated C. amused D. exhausted

2. A. yet B. otherwise C. even D. so

3. A. experience B. witness C. watch D. undergo

4. A. Deliberately B. Consequently C. Frequently D. Apparently

5. A. unless B. once C. while D. as

6. A. suspicion B. opposition C. criticism D. praise

7. A. emotion B. fancy C. likeliness D. judgement

8. A. at length B. to a great extent C. from his heart D. by all means

9. A. follows B. predicts C. defies D. supports

10. A. dedication B. compassion C. contemplation D. speculation

11. A. Still B. Also C. Certainly D. Fundamentally

12. A. faith B. reliance C. honor D. credit

13. A. if B. once C. when D. whereas

14. A. propositions B. predictions C. approval D. defiance

15. A. about B. on C. in D. to

16. A. started B. conducted C. replaced D. proposed

17. A. Since B. Although C. However D. Only if

18. A. Even if B. Because C. If D. For

19. A. at a loss B. at last C. insgroupsD. on the occasion

20. A. stimulate B. constitute C. furnish D. provoke

参 考 答 案

1. A 2.C 3.B 4.D 5.B 6.C 7.B 8.A 9.A 10.D

11. C 12.A 13.C 14.B 15.D 16.C 17.B 18.C 19.A 20.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:以上内容仅为参考,在做试题练习时,小伙伴们还是要以考研大纲为准,有针对性的去做题哦。最后,51题库考试学习网预祝参加2021年考研初试的小伙伴都能取得优异的成绩。


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。

上述哪种氨基酸脱羧基后产生的物质是血管收缩剂?
A.谷氨酸 B.半胱氨酸 C.组氨酸 D.色氨酸

答案:D
解析:
①组氨酸经组氨酸脱羧酶催化,生成组胺。组胺是一种强烈的血管舒张剂,并能增 加毛细血管通透性。②色氨酸通过色氨酸羟化酶的作用生成5-羟色氨酸,再经脱羧酶作用生成5-羟色 胺。在外周组织,5-羟色胺具有强烈的血管收缩作用(参阅7版生化P196)。7版病理学P69认为5-羟 色胺为血管扩张剂。

患者,男,40岁。乏力伴活动后心慌气促5个月,近来皮肤紫瘢。查体:贫血貌,浅表淋巴结无肿大,胸骨无压痛,肝脾肋缘下未触及。实验室检查结果:Hb60g/L,RBC2. 4 × 1012/L, WBC1.4x109/L,Plt9 ×109/L。
对该患者最可能的诊断是
A.骨髓增生异常综合征B.再生障碍性贫血 C.急性淋巴细胞白血病D.血小板减少性紫癜

答案:B
解析:
①本例外周血三系(红系、粒系、血小板)减少,但浅表淋巴结和肝脾无肿大,符合再生障碍性贫血。骨髓增生异常综合征由于骨髓病态造血,也可有全血细胞减少,但外周血一般可出现原始细胞,脾肿大常见。急性淋巴细胞白血病多有肝脾及淋巴结肿大,胸骨有压痛,外周血白细胞增多。血小板减少性紫癜只表现为外周血血小板减少,红细胞和粒细胞一般正常。②再生障碍性贫血由于骨髓造血功能衰竭,表现为骨髓中巨核细胞减低,相应地,骨髓中非造血细胞相对增多。骨髓增生极度活跃为骨髓增生异常综合征的表现。“核老浆幼”现象为缺铁性贫血的表现。

不属于镇心安神药组的是(  )
A.龙骨、牡蛎
B.朱砂、磁石
C.龟甲、鳖甲
D.珍珠、琥珀

答案:C
解析:
龟甲能滋阴潜阳、益肾健骨、养血补心;鳖甲能滋阴潜阳、软坚散结,无镇心安神作用。

慢性骨髓炎手术时机的选择是
A.有包壳生成者 B.有死骨形成者 C.有死腔形成者 D.有窦道流脓者

答案:B,C,D
解析:
慢性骨髓炎手术指征是:有死骨形成,有死腔及窦道流脓者。急性骨髓炎就有包壳生成,因此包 壳生成不是慢性骨髓炎的手术指征。事实上,慢性骨髓炎手术时必需强调有死骨形成而包壳生成完整。

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