中国地质大学高等数学高起专阶段性作业

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中国地质大学高等数学高起专阶段性作业篇一

大学英语1(高起专)阶段性作业答案中国地质大学

中国地质大学(武汉)

大学英语1(高起专)阶段性作业1 单选题

1. ________ that knife before you hurt somebody!(5分)

(A) Put down

(B) Put off

(C) Put on

(D) Put out

参考答案:A

2. The girl _________ on the ground _________ to me just now.(5分)

(A) lying, lay

(B) lying, lied

(C) lie, lied

(D) lay, lied

参考答案:B

3. By the end of last year, they _________ English for more than 3 years.

(5分)

(A) have learnt

(B) learnt

(C) had learnt

(D) had been learning

参考答案:C

4. The years _________ the appearance of my grandmother.(5分)

(A) obscured

(B) forgot

(C) remembered

(D) passed

参考答案:A

5. Six months had _________, and we still had no news of them.(5分)

(A) past

(B) passed

(C) last

(D) lasted

参考答案:B

6. The young man came into the classroom _______ flowers in his hand.

(5分)

(A) of

(B) with

(C) in

(D) to

参考答案:B

7. The old man used to _________ early in the morning(5分)

(A) wake up

(B) waking up

(C) woke up

(D) waken up

参考答案:A

8. He finished writing the novel _________ of last month (5分)

(A) at the end

(B) in the end

(C) by the end

(D) on the end

参考答案:A

9. He is not a child _____________(5分)

(A) no more

(B) no longer

(C) any much

(D) any more

参考答案:D

10. He _________ poor all his life as he was not healthy enough.(5分)

(A) was remaining

(B) was remained

(C) remained

(D) has remained

参考答案:C

选词填空

11. 1. His eyesto the telephone.

cancer? 2. When will scientist

3. Your encouragement made me more

4. My father

5. The teacher

6. I will

7. She wasof my future. me with the importance of hard work. her students to speak more English in and out of class.the days we were together for ever. of her children's (bad) behavior.

routes on campus, I couldn’t help thin8. When I walk down again the

king of my old school life.

9. If you can't sign your name, make a cross

10. Her boyfriend is her

(A) confident

(B) confident

(C) familiar

(D) cherish

(E) encourages

(F) conquer

(G) shifted

(H) impresses

(I) senior

(J) instead by six years.(50分) .

参考答案:(1)G(2)F(3)A(4)H(5)E(6)D(7)B(8)C(9)J(10)I

大学英语1(高起专)阶段性作业2

单选题

1. This dress is too long. I want one of ______ length(3分)

(A) medium

(B) modest

(C) average

(D) middle

参考答案:C

2. Would you come and have dinner with us?_______(3分)

(A) No, I think I don’t.

(B) No, never mind.

(C) Yes, please.

(D) Yes, I think I will.

参考答案:D

3. Newton was one of the greatest scientists ______ ever lived.(3分)

(A) whom

(B) which

(C) what

(D) that

参考答案:D

4. By the time he reached to the dentist, his toothache______.(3分)

(A) stopped

(B) had stopped

(C) has stopped

(D) as been stopped

参考答案:B

5. Sorry to have kept you waiting.________(3分)

(A) That’s Ok

(B) What are you doing?

(C) What’s wrong with you?

(D) Where have you been?

参考答案:A

6. Modern education is ______ because of its failure to meet the practical needs of the society.(3分)

(A) on attack

(B) in attack

(C) for attack

(D) under attack

参考答案:D

7. Can you help me?_______(3分)

(A) No, I don’t know.

(B) Sure, what is it?

(C) Don’t mention it.

(D) We don’t have books here.

参考答案:B

8. He recited ______ much of the poem as he could remember.(3分)

(A) with

(B) as

(C) so

(D) such

参考答案:B

9. The company made efforts ______ their products.(3分)

(A) promoting

(B) to promote

(C) promoted

(D) to promoting

参考答案:B

10. This dress is too long. I want one of ______ length(3分)

(A) medium

(B) modest

(C) average

(D) middle

参考答案:C

11. Not until last night ______ the news.(3分)

(A) do I get

(B) can I get

(C) I got

(D) did I get

参考答案:D

12. The rescue team rushed the injured ______ the hospital.(3分)

(A) to

(B) in

(C) from

(D) of

参考答案:A

13. It’s been a wonderful evening. Thank you very much._______(3分)

(A) My pleasure

(B) It doesn’t matter.

(C) No thanks

(D) It’s OK

参考答案:A

中国地质大学高等数学高起专阶段性作业篇二

中国地质大学-高等数学(二)-平时作业

高等数学(2)

100分

答1-5.BDCAC、

6-10.ADCDA、11-15.BCCBA、16-20.CADCD、21-25.CAADB

、26-30.DCBBB 1.

[参考答案

] B 2.

[参考答案] D 3.

[参考答案] C 4.

.

[参考答案] A 5.

[参考答案] C

6.

[参考答案] A

7.

[参考答案] D{中国地质大学高等数学高起专阶段性作业}.

{中国地质大学高等数学高起专阶段性作业}.

8.

[参考答案] C

9.

[参考答案] D

10.

[参考答案] A 11.

[参考答案] B

12.

[参考答案] C

13.

[参考答案] C

14.

[参考答案] B 15.

[参考答案] A

16.

[参考答案] C

17.

[参考答案] A

18.

[参考答案] D

19.

[参考答案] C 20.

[参考答案] D

21.

[参考答案] C

22.

[参考答案] A

23.

[参考答案] A

24.

[参考答案] D 25.

中国地质大学高等数学高起专阶段性作业篇三

(高起专)高等数学(2)

中国地质大学(武汉)远程与继续教育学院试题纸

第 1页,共 1页

中国地质大学高等数学高起专阶段性作业篇四

中国地质大学平时作业2014年春高等数学1

答案

{中国地质大学高等数学高起专阶段性作业}.

B

答案

A

答案

B

答案D

A

答案

C

答案C

C

A

C

C

C

D

C

B

B

D

中国地质大学高等数学高起专阶段性作业篇五

高等数学(2)阶段性作业31

中国地质大学(武汉)远程与继续教育学院

课程作业3(共次作业) 学习层次:专科 涉及章节:第9章 ——第10章{中国地质大学高等数学高起专阶段性作业}.

一、计算题

1. 利用二积分的性质估计下列积分的值:

a) Ixy(xy)d , (x,y)0x1,0y1.

D

b) Isin2xsin2yd,其中D是矩形闭区域0x,0y

D

2. 计算xexydxdy的值,其中D为0x1,1y0.

D

3. 求

D

dxdy(xy)2

的值,其中d为1x2,3y4.

4. 求积分(1x)yd的值,其中D是顶点为(0,0),(1,0),),(1,2),(0,1)的直边梯形.

D

5. 选用极坐标计算下列积分:{中国地质大学高等数学高起专阶段性作业}.

(1).ln(1x2y2)dxdy,其中D为x2y21所围成的第一象限内的区域。

D

(2).arctgdxdy,其中D为x2y24,x2y21及直线yx,y0所围的第一

D

y

x

象限内的区域。

6. 选用适当的坐标系计算(x2y2)d,其中D是由xy2,y1,y1及x2所

D

围成的区域。

7. 计算I(x2y2z2)dxdydz,其中为球体x2y2z2z在第一卦限中的部分.

二、判别题

判别下列级数的敛散性: 1. 2.

1111



33

11111111

23+n 21022023010n2

3.

nsinn

n1

2

4.

n!

n

10n1

5.

n1

n1

n

3n1

6. 

4n1n1

n

7.

1352n1 2583n1n1

三、解答题

(1)确定下列幂级数的收敛区间:

1.

n

n1

3

xn 1n

2.

n1

x2n

(2)利用逐项求导或逐项积分,求下列级数在收敛区间内的和函数:

1.

nx

n1

n1

(x1)

22n12n11

x (x) 2n12

2.

1

n1

n1

参考答案 一、计算题

1. 利用二积分的性质估计下列积分的值:

a) :设f(x,y)xy(xy)且0x1,0y1;

fmin(x,y)f(0,0)0,fmax(x,y)f(1,1)2;

故由积分估值公式得0I2

b) :设f(x,y)si2x,)1,nsi2yn且0x,0y;fmax(x,y)f(

22

fmin(x,y)f(0,0)f(0,)f(,0)f(,)0;

故由积分估值公式得0I2

x

)dx[xex]12. 原式=dxxexydy[exy]01dx(1e01/e

1

1

1

1

3. 原式dx

1

24

dy(xy)2

3



2

1

2111

[]dx()dx

1xy3x4x3

4

42

[lnx4lnx3]1ln

3

y2

4. 原式dx(1x)ydy(1x)[]dx

00020

1

x1

1

x1

1

2

3

(1x)dx 01

115

[(1x)4]10

22

5. 选用极坐标计算下列积分:

1r2)rdr,用u1r2换元积分得, (1)原式dln(

/21

原式

1

2

/2

dlnudu

1

2

4

2

[ulnuu]1

4

(2ln22)

(2)原式drrdr[

1

/42

2

2

]0

/4

r2232

[]1

264

1

3/21

2

1

6. 原式(x2y2)d

D12

3/2

22322

(xy)ddx(xy)dydrdr

D2

/2

r41

(2x2/3)dx[]0d2/24 2320[(xx)]023434

7. 解:作球坐标代换 xrcossin,yrsinsin,zrcos,则有,

cos

I{中国地质大学高等数学高起专阶段性作业}.

2

d

2

sind

rdr

4

2

2

1

cos2sind5

/20

10

2

cos5dcos



cos660

{中国地质大学高等数学高起专阶段性作业}.

60

二、判别题

判别下列级数的敛散性: 1. 级数发散 2. 级数发散 3. 故级数发散 4. 故发散. 5. 故级数发散. 6. 级数收敛. 7. 级数收敛.

三、解答题

(1)确定下列幂级数的收敛区间:

3

n11. 解:lim

n

n3

n1

lim1 n

n

3

R

1

1,且当x1或1时级数发散,

收敛区间(-1,1)

2. 解:lim

n

nn1

lim

n

n

1 n1

R

1

1, 所以当-1<x21,即1<x3时,幂级数收敛,且

当x1时,

n1

1n

1

n

收敛; 当x3时,

n1

1n

发散,

故所给幂级数的收敛区间为1,3

(2)利用逐项求导或逐项积分,求下列级数在收敛区间内的和函数:

1. 解:记Sx

nx

n1

n1

则Sxdxxn

n1

x

x

(x1) 1x

1x

(x1) Sx2

1x1x

2. 解:记Sx

1

n1

n1

1

2x2n1, 2n1

n1

则Sx21

n1

2x2n2

2

(2x1)

14x2

Sx

x

x121

() xdx2xarctg2x014x2

214x2

中国地质大学高等数学高起专阶段性作业篇六

高等数学一中国地质大学作业答案

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