2011年考研英语二真题

2011年考研数学试题（数学一）

一、选择题

1、 曲线y??x?1??x?2??x?3??x?4?的拐点是（ ）

234（A）（1，0） （B）（2，0） （C）（3，0） （D）（4，0）

【答案】C【考点分析】本题考查拐点的判断。直接利用判断拐点的必要条件和第二充分条件即可。

【解析】由y??x?1??x?2??x?3??x?4?可知1,2,3,4分别是

234y??x?1??x?2??x?3??x?4??0的一、二、三、四重根，故由导数与原函数之间的

关系可知y?(1)?0，y?(2)?y?(3)?y?(4)?0

234y??(2)?0，y??(3)?y??(4)?0，y???(3)?0,y???(4)?0，故（3，0）是一拐点。

2、 设数列?an?单调减少，liman?0，Sn?n???a?n?1,2???无界，则幂级数

kk?1n?an?x?1?的收敛域为（ ） （A） (-1，1] （B） [-1，1) （C） [0，2) （D）

n?1?n(0，2]

【答案】C【考点分析】本题考查幂级数的收敛域。主要涉及到收敛半径的计算和常数项级数收敛性的一些结论，综合性较强。 【解析】Sn??ak?n?1,2?

2011年考研英语(一)真题

Section I Use of English Directions:

Read the following text. Choose the best word(s) for each numbered blank and mark [A], [B], [C] or [D] on ANSWER SHEET 1. (10 points)

Ancient Greek philosopher Aristotle viewed laughter as “a bodily exercise precious to health.” But _____some claims to the contrary, laughing probably has little influence on physical filness Laughter does _____short-term changes in the function of the heart and its blood vessels, ____ heart rate and oxygen consumption But because hard laug

2011年考研英语一真题答案及详解 2011年01月21日 16:46 万学海文

2011年考研英语一真题答案及详解

Section I Use of English

1-5 CDBBA 6-10 BADCA 11-15 BCDCB 16-20 DADAC

1.C

解析：语义逻辑题。第一句含义是“古希腊哲学家亚里士多德把笑看作是“有益于身体健康的宝贵锻炼”，第二句意思是“但是 一些人提出相反的意见，轻笑可能对身体健康影响极小”，两句之间是转折关系，A、B、C、D四个选项中只有C选项表转折“尽管”，故是正确选项。

2.D

解析：语义辨析题。上下文语境是“笑确实能 短期的改变”。A. reflect“反映”，B. demand“要求”，C. indicate“表明，暗示”，D. produce“产生”，只有D 选项符合语境，所以是正确答案。

3.B

解析：语义搭配题。文中提到“笑能够 心律呼吸速率。” A. stabilizing 意思是“安定，稳定”，B. boosting“促进，推进”，C. impairing“损害，削弱”，D. determining“决定”，根据语境应该是“笑能够促进心律呼吸

作者非本人，禁止商业目的

2007-2011年考研数学（二)试题

2007年考试数学（二2008年考研数学（二2009年考研数学（二2010年考研数学（二2011年考研数学（二)试题 .................... 3)试题 .................. 11)试题 .................. 21)试题 .................. 31)试题 .................. 39

2007年考试数学（二)试题

一、选择题：1～10小题，每小题4分，共40分. 在每小题给出的四个选项中，只有一项符合题目要求，把所选项前的字母填在题后的括号内. （1）当x

0 （A

）1 （B

）ln

（C

1 （D

）1 [ ]

(ex e)tanx

（2）函数f(x) 在 , 上的第一类间断点是x （ ） 1

x ex e

（A）0 （B）1 （C） （D）

22

（3）如图，连续函数y f(x)在区间 3, 2 , 2,3 上的图形分别是直径为1的上、下半圆周，在区间 2,0 , 0,2 的图形分别是直

14考研英语二真题及答案 SectionI Use of English

Directions:

Read the following text. Choose the best word(s) for eachnumbered blank and mark A, B, C or D on ANSWER SHEET. (10points)

Thinner isn t always better. A number of studies have __1___ thatnormal-weight people are in fact at higher risk of some diseasescompared to those who are overweight. And there are healthconditions for which being overweight is actually ___2___.

Forexample, heavier women are less likely to develop calciumdeficiency than thin women. ___3___ among the elderly, b

Section Ⅱ Reading Comprehension

Part A

Text 1

A new study suggests that contrary to most surveys, people are actually more stressed at home than at work. Researchers measured peoples cortisol，which is it at stress marker,while they were at work and while they were at home and found it higher at what is supposed to be a place of refuge.

段首句提出观点：人们在家中受到的压力比工作中更大（more stressed at home than at work），第二句通过具体的实验结果描述对首句进行道理论证（cortisol浓度在家中比在工作中更高）。

从考点设置来说，本段首句+第二句构成观点+例证的结构，可以对首句的观点进行正确选项的设置。

“Further contradicting conventio

江西研视界教育咨询有限公司

Section 1 Use of English

Directions: Read the following text. Choose the best word(s) for each numbered

blank and mark [A], [B], [C] or [D] on ANSWER SHEET 1. (10 points)

Happy people work differently. They’re more productive, more creative, and

willing to take greater risks. And new research suggests that happiness might

influence__1__firm’s work, too.

Companies located in places with happier people invest more, according to a

recent research paper.__2__, firms in happy places spend more on R&D (research and developm

第1页共12页2018年全国硕士研究生招生考试

英语（二）

Section I Use of English Directions:Read the following text.Choose the best word (s)for each numbered blank and mark A,B,C or D on the ANSWER SHEET.(10points)Why do people read negative Internet comments and do other things that will obviously be painful?Because humans have an inherent need to 1uncertainty,according to a recent study in Psychological Science.The new research reveals that the need to know is so strong that people will 2to satisfy their curiosity even when it is clear the answer wi

2021年考研真题2021年考研英语真题和答

案

2021年考研英语真题和答案

Section I Use of English Directions: Read the following text.Choose

the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET

1.(10

points)Research on animal intelligence always makes me wonder just how smart humans are.

1the fruit-fly experiments described in Carl Zimmer’s piece in the Science Times on Tuesday.Fruit flies who were taught to be smarter than the average fruit fly

2 to live shorter lives.This

suggests that 3 bulbs burn longer, that there is an 4 in not being

考研英语真题：英语二阅读文章

2017考研英语二阅读文章源文

源于The Christian Science Monitor July 1, 2016

Upton understands the value of that connection.

During her early days with the California Department of Forestry and Fire Protection (Cal Fire), veterans would tell war stories of huge fires that happened once in a career, she recalls.

“But in my generation, those of us who’ve come up through the ‘80s, ‘90s, 2000s … we feel like we don’t have the license to use the word ‘unprecedented’any more. We’ve seen it all in the last few years,” she says. “I’ve pr