1998年考研英语一真题及答案

考研英语真题答案及精析

1998年考研英语真题答案快速扫描 1.B 2.D 3.B 4.C 5.A 6.D 7.C 8.D 9.A 10.A

(11~20略:新大纲不再考查的部分)

21.C 22.B 23.D 24.D 25.D 26.A 27.C 28.B 29.C 30.B

31.A 32.A 33.D 34.A 35.B 36.C 37.A 38.C 39.B 40.D

41.A 42.B 43.D 44.A 45.D 46.D 47.A 48.B 49.C 50.D

51.C 52.D 53.D 54.C 55.A 56.B 57.B 58.A 59.C 60.D

61.A 62.A 63.B 64.C 65.D 66.C 67.B 68.B 69.D 70.C

1998年考研英语真题答案系统精析

Part Ⅰ Structure

10.对工业革命的正确评价(1998年)难度：0.47

Until recently most historians spoke very critically of the Industrial Revolution. They1that in the long run industrialization greatly raised the standard of living for the2man. But they insisted that its3results during the period from 1750 to 1850 were widespread poverty and misery for the4of the English population. 5contrast, they saw in the preceding hundred years from 1650 to 1750, when England was still a6agricultural country, a period of great abundance and prosperity.

This view,7, is gener

10.对工业革命的正确评价(1998年)难度：0.47

Until recently most historians spoke very critically of the Industrial Revolution. They1that in the long run industrialization greatly raised the standard of living for the2man. But they insisted that its3results during the period from 1750 to 1850 were widespread poverty and misery for the4of the English population. 5contrast, they saw in the preceding hundred years from 1650 to 1750, when England was still a6agricultural country, a period of great abundance and prosperity.

This view,7, is gener

1998 年全国硕士研究生入学统一考试数学一试题

一、填空题(本题共5小题,每小题3分,满分15分.) (1) limx?01?x?1?x?2? . x21?2z(2) 设z?f(xy)?y?(x?y),f,?具有二阶连续导数,则? .

x?x?yx2y222(2xy?3x?4y)ds? . ??1,其周长记为a,则?(3) 设L为椭圆?L43(4) 设A为n阶矩阵,A?0,A为A的伴随矩阵,E为n阶单位矩阵.若A有特征值?,

则(A*)2?E必有特征值 . (5) 设平面区域D由曲线y?*

12及直线y?0,x?1,x?e所围成,二维随机变量(X,Y)在x区域D上服从均匀分布,则(X,Y)关于X的边缘概率密度在x?2处的值为 _ .

二、选择题(本题共5小题,每小题3分,共15分.) (1) 设f(x)连续,则

2dx22tf(x?t)dt? ( ) ?0dx222(A) xf(x) (B) ?xf(x) (C) 2xf(x)

1998 年全国硕士研究生入学统一考试数学一试题

一、填空题(本题共5小题,每小题3分,满分15分.) (1) limx?01?x?1?x?2? . x21?2z(2) 设z?f(xy)?y?(x?y),f,?具有二阶连续导数,则? .

x?x?yx2y222(2xy?3x?4y)ds? . ??1,其周长记为a,则?(3) 设L为椭圆?L43(4) 设A为n阶矩阵,A?0,A为A的伴随矩阵,E为n阶单位矩阵.若A有特征值?,

则(A*)2?E必有特征值 . (5) 设平面区域D由曲线y?*

12及直线y?0,x?1,x?e所围成,二维随机变量(X,Y)在x区域D上服从均匀分布,则(X,Y)关于X的边缘概率密度在x?2处的值为 _ .

二、选择题(本题共5小题,每小题3分,共15分.) (1) 设f(x)连续,则

2dx22tf(x?t)dt? ( ) ?0dx222(A) xf(x) (B) ?xf(x) (C) 2xf(x)

旗开得胜

读万卷书行万里路1

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.(10 points)

As many people hit middle age, they often start to notice that their memory and mental clarity are not what they used to be. We suddenly can’t remember ___1___ we put the keys just a moment ago, or an old acquaintance’s name, or the name of an old band we used to love. As the brain ___2___, we refer to these occurrences as "senior moments." ___3___ seemin

Born to win

1998 年全国硕士研究生入学统一考试数学二试题

一、填空题(本题共5小题,每小题3分,满分15分,把答案填在题中横线上.) (1) limx?01?x?1?x?2? . 2x(2) 曲线y??x3?x2?2x与x轴所围成的图形的面积A? . lnsinx?sin2xdx? .

dxtf(x2?t2)dt? . (4) 设f(x)连续,则?dx01(5) 曲线y?xln(e?)(x?0)的渐近线方程为 . x(3)

二、选择题(本题共5小题,每小题3分,共15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) 设数列xn与yn满足limxnyn?0,则下列断言正确的是 ( )

n??(A) 若xn发散,则yn发散 (B) 若xn无界,则yn必有界 (C) 若xn有界,则yn必为无穷小 (D)

1998年全国硕士研究生入学统一考试英语试题

Section I Structure and Vocabulary

Part A Directions:

Beneath each of the following sentences, there are four choices marked [A],[B],[C] and [D]. Choose the one that best completes the sentence. Mark your answer on the ANSWER SHEET 1 by blackening the corresponding letter in the brackets with a pencil. (5 points)

Example:

I have been to the Great Wall three times ________ 1979. [A] from [B] after [C] for [D] since

The sentence should read, “I have been to the Great Wall three times since 1979.” Theref

1998年全国硕士研究生入学统一考试英语试题

Section I Structure and Vocabulary

Part A Directions:

Beneath each of the following sentences, there are four choices marked [A],[B],[C] and [D]. Choose the one that best completes the sentence. Mark your answer on the ANSWER SHEET 1 by blackening the corresponding letter in the brackets with a pencil. (5 points)

Example:

I have been to the Great Wall three times ________ 1979. [A] from [B] after [C] for [D] since

The sentence should read, “I have been to the Great Wall three times since 1979.” Theref

015年考研英语(一)真题完整版

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. (10 points)

Though not biologically related, friends are as “related” as fourth cousins, sharing about 1% of genes. That is _(1)_a study, published from the University of California and Yale University in the Proceedings of the National Academy of Sciences, has__(2)_.

The study is a genome-wide analysis conducted _(3)__1,932 unique subjects which __(4)__pairs of unr