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
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}.
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
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) Ixy(xy)d , (x,y)0x1,0y1.
D
b) Isin2xsin2yd,其中D是矩形闭区域0x,0y
D
2. 计算xexydxdy的值,其中D为0x1,1y0.
D
3. 求
D
dxdy(xy)2
的值,其中d为1x2,3y4.
4. 求积分(1x)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(1x2y2)dxdy,其中D为x2y21所围成的第一象限内的区域。
D
(2).arctgdxdy,其中D为x2y24,x2y21及直线yx,y0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(x2y2)d,其中D是由xy2,y1,y1及x2所
D
围成的区域。
7. 计算I(x2y2z2)dxdydz,其中为球体x2y2z2z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
23+n 21022023010n2
3.
nsinn
n1
2
4.
n!
n
10n1
5.
n1
n1
n
3n1
6.
4n1n1
n
7.
1352n1 2583n1n1
三、解答题
(1)确定下列幂级数的收敛区间:
1.
n
n1
3
xn 1n
2.
n1
x2n
(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
n1
n1
(x1)
22n12n11
x (x) 2n12
2.
1
n1
n1
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(xy)且0x1,0y1;
fmin(x,y)f(0,0)0,fmax(x,y)f(1,1)2;
故由积分估值公式得0I2
b) :设f(x,y)si2x,)1,nsi2yn且0x,0y;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0I2
x
)dx[xex]12. 原式=dxxexydy[exy]01dx(1e01/e
1
1
1
1
3. 原式dx
1
24
dy(xy)2
3
2
1
2111
[]dx()dx
1xy3x4x3
4
42
[lnx4lnx3]1ln
3
y2
4. 原式dx(1x)ydy(1x)[]dx
00020
1
x1
1
x1
1
2
3
(1x)dx 01
115
[(1x)4]10
22
5. 选用极坐标计算下列积分:
1r2)rdr,用u1r2换元积分得, (1)原式dln(
/21
原式
1
2
/2
dlnudu
1
2
4
2
[ulnuu]1
4
(2ln22)
(2)原式drrdr[
1
/42
2
2
]0
/4
r2232
[]1
264
1
3/21
2
1
6. 原式(x2y2)d
D12
3/2
22322
(xy)ddx(xy)dydrdr
D2
/2
r41
(2x2/3)dx[]0d2/24 2320[(xx)]023434
7. 解:作球坐标代换 xrcossin,yrsinsin,zrcos,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
sind
rdr
4
2
2
1
cos2sind5
/20
10
2
cos5dcos
cos660
{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
n11. 解:lim
n
n3
n1
lim1 n
n
3
R
1
1,且当x1或1时级数发散,
收敛区间(-1,1)
2. 解:lim
n
nn1
lim
n
n
1 n1
R
1
1, 所以当-1<x21,即1<x3时,幂级数收敛,且
当x1时,
n1
1n
1
n
收敛; 当x3时,
n1
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Sx
nx
n1
n1
则Sxdxxn
n1
x
x
(x1) 1x
1x
(x1) Sx2
1x1x
2. 解:记Sx
1
n1
n1
1
2x2n1, 2n1
n1
则Sx21
n1
2x2n2
2
(2x1)
14x2
Sx
x
x121
() xdx2xarctg2x014x2
214x2
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