当前位置:文档之家› 高一上学期《函数单调性的证明》练习题

高一上学期《函数单调性的证明》练习题

高一上学期《函数单调性的证明》练习题
高一上学期《函数单调性的证明》练习题

高一上学期《函数单调性的证明》练习题

1.函数y=f(x)对于任意x、y∈R,有f(x+y)=f(x)+f(y)﹣1,当x>0时,f(x)>1,且f(3)=4,则()

A.f(x)在R上是减函数,且f(1)=3 B.f(x)在R上是增函数,且f(1)=3

C.f(x)在R上是减函数,且f(1)=2 D.f(x)在R上是增函数,且f(1)=2

2.已知函数y=f(x)在(0,+∞)上为增函数,且f(x)<0(x>0).试判断F(x)

=在(0,+∞)上的单调性并给出证明过程.

3.已知函数y=f(x)在(0,+∞)上为减函数,且f(x)<0(x>0),试判断f(x)

=在(0,+∞)上的单调性,并给出证明过程.

4.已知函数f(x)对任意x,y∈R,总有f(x)+f(y)=f(x+y),且当x>0时,f(x)<0,f(1)=﹣.

(1)求f(0);

(2)求证:f(x)在R上是减函数;

(3)求f(x)在[﹣3,3]上的最大值和最小值.

5.函数f(x)对任意a,b∈R,有f(a+b)=f(a)+f(b)﹣1,且当x>0时,f(x)>1.

(Ⅰ)求证:f(x)是R 上的增函数;

(Ⅱ)若f(﹣4)=5,解不等式f(3m2﹣m﹣3)<2.

6.函数f(x)对任意的a,b∈R,都有f(a+b)=f(a)+f(b)﹣1,并且当x>0时,f(x)>1.

(1)求证:f(x)是R上的增函数;

(2)若f(4)=5,解不等式f(3m2﹣m﹣2)<3.

7.函数f(x)对任意的a、b∈R,都有f(a+b)=f(a)+f(b)﹣1,并且当x>0时,f(x)>1.

(1)求证:f(x)是R上的增函数;

(2)若f(2)=3,解不等式f(m﹣2)<3.

8.已知定义在R上的函数f(x)满足:①f(x+y)=f(x)+f(y)+1,②当x>0时,f (x)>﹣1;

(Ⅰ)求:f(0)的值,并证明f(x)在R上是单调增函数;

(Ⅱ)若f(1)=1,解关于x的不等式;f(x2+2x)+f(1﹣x)>4.

9.定义在R上的函数y=f(x)对任意的x、y∈R,满足条件:f(x+y)=f(x)+f(y)﹣1,且当x>0时,f(x)>1.

(1)求f(0)的值;

(2)证明:函数f(x)是R上的单调增函数;

(3)解关于t的不等式f(2t2﹣t)<1.

10.定义在R上的函数y=f(x)对任意的x,y∈R,满足条件:f(x+y)=f(x)+f(y)﹣2,且当x>0时,f(x)>2

(1)求f(0)的值;

(2)证明:函数f(x)是R上的单调增函数;

(3)解不等式f(2t2﹣t﹣3)﹣2<0.

11.已知f(x)是定义在R上的恒不为零的函数,且对于任意的x,y∈R都满足f(x)?f(y)=f(x+y).

(1)求f(0)的值,并证明对任意的x∈R,有f(x)>0;

(2)设当x<0时,都有f(x)>f(0),证明:f(x)在(﹣∞,+∞)上是减函数.

高一《函数单调性的证明》练习题

参考答案与试题解析

1.函数y=f(x)对于任意x、y∈R,有f(x+y)=f(x)+f(y)﹣1,当x>0时,f(x)>1,且f(3)=4,则()

A.f(x)在R上是减函数,且f(1)=3 B.f(x)在R上是增函数,且f(1)=3

C.f(x)在R上是减函数,且f(1)=2 D.f(x)在R上是增函数,且f(1)=2

【分析】先依据函数单调性的定义判断函数的单调性,再由f(3)=f(1)+f(2)﹣1=f (1)+f(1)+f(1)﹣1﹣1=4,解出f(1).

【解答】解:设x1>x2,

则f(x1)﹣f(x2)=f(x1﹣x2+x2)﹣f(x2)=f(x1﹣x2)+f(x2)﹣1﹣f(x2)=f(x1﹣x2)﹣1>1﹣1=0,

即f(x1)>f(x2),

∴f(x)为增函数.

又∵f(3)=f(1)+f(2)﹣1=f(1)+f(1)+f(1)﹣1﹣1=3f(1)﹣2=4,

∴f(1)=2.

故选:D.

2.已知函数y=f(x)在(0,+∞)上为增函数,且f(x)<0(x>0).试判断F(x)

=在(0,+∞)上的单调性并给出证明过程.

【分析】首先,设x1,x2∈(0,+∞),且x1<x2,然后根据函数f(x)的单调性进行证明即可.

【解答】解:函数F(x)=为(0,+∞)上减函数,证明如下:

任设x1,x2∈(0,+∞)且x1<x2,

∵y=f(x)在(0,+∞)上为增函数,

∴f(x1)<f(x2),f(x1)<0,f(x2)<0,

F(x1)﹣F(x2)=﹣=,

∵f(x1)<f(x2),

∴f(x2)﹣f(x1)>0,

∵f(x1)<0,f(x2)<0,

∴f(x1)?f(x2)>0,

∴F(x1)﹣F(x2)>0,

即F(x1)>F(x2),

则F(x)为(0,+∞)上的减函数.

3.已知函数y=f(x)在(0,+∞)上为减函数,且f(x)<0(x>0),试判断f(x)

=在(0,+∞)上的单调性,并给出证明过程.

【分析】首先,设x1,x2∈(0,+∞),且x1<x2,然后,比较大小,从而得到结论.

【解答】解:函数为(0,+∞)上增函数,证明如下:

任设x1,x2∈(0,+∞)且x1<x2,

∵y=f(x)在(0,+∞)上为减函数,

∴f(x1)>f(x2),f(x1)<0,f(x2)<0,

=,

∵f(x1)>f(x2),

∴f(x2)﹣f(x1)<0,

∵f(x1)<0,f(x2)<0,

∴f(x1)?f(x2)>0,

∴g(x1)﹣g(x2)<0,

∴为(0,+∞)上的增函数.

4.已知函数f(x)对任意x,y∈R,总有f(x)+f(y)=f(x+y),且当x>0时,f(x)<0,f(1)=﹣.

(1)求f(0);

(2)求证:f(x)在R上是减函数;

(3)求f(x)在[﹣3,3]上的最大值和最小值.

【分析】(1)令x=y=0?f(0)=0;

(2)令y=﹣x即可证得f(﹣x)=﹣f(x),利用函数的单调性的定义与奇函数的性质,

结合已知即可证得f(x)是R上的减函数;

(3)利用f(x)在R上是减函数可知f(x)在[﹣3,3]上也是减函数,易求f(3)=﹣2,从而可求得f(x)在[﹣3,3]上的最大值和最小值.

【解答】解:(1)令x=y=0,则f(0)=0;

(2)令y=﹣x,则f(﹣x)=﹣f(x),

在R上任意取x1,x2,且x1<x2,则△x=x2﹣x1>0,△y=f(x2)﹣f(x1)=f(x2)+f(﹣x1)=f(x2﹣x1)

∵x2>x1,

∴x2﹣x1>0,

又∵x>0时,f(x)<0,

∴f(x2﹣x1)<0,即f(x2)﹣f(x1)<0,

由定义可知函数f(x)在R上为单调递减函数.

(3)∵f(x)在R上是减函数,

∴f(x)在[﹣3,3]上也是减函数.

又f(3)=f(2)+f(1)=f(1)+f(1)+f(1)=3×(﹣)=﹣2,

由f(﹣x)=﹣f(x)可得f(﹣3)=﹣f(3)=2,

故f(x)在[﹣3,3]上最大值为2,最小值为﹣2.

5.函数f(x)对任意a,b∈R,有f(a+b)=f(a)+f(b)﹣1,且当x>0时,f(x)>1.

(Ⅰ)求证:f(x)是R 上的增函数;

(Ⅱ)若f(﹣4)=5,解不等式f(3m2﹣m﹣3)<2.

【分析】(Ⅰ)设实数x1<x2,则x2﹣x1>0,利用已知可得f(x2﹣x1)>1.再利用已知可得f(x2)=f(x2﹣x1+x1)=f(x2﹣x1)+f(x1)﹣1>1+f(x1)﹣1=f(x1)即可;(Ⅱ)令a=b=﹣2,以及a=b=﹣1,解得f(﹣2)=3,f(﹣1)=2,不等式f(3m2﹣m ﹣3)<2.化为f(3m2﹣m﹣3)<f(﹣1),由(1)可得:f(x)在R上是增函数.可得3m2﹣m﹣3<﹣1,解得即可.

【解答】解:(Ⅰ)证明:设x1<x2,则x2﹣x1>0,

∵当x>0时,f(x)>1,∴f(x2﹣x1)>1.

又函数f(x)对任意a,b∈R都有f(a+b)=f(a)+f(b)﹣1,

∴f(x2)=f(x2﹣x1+x1)=f(x2﹣x1)+f(x1)﹣1>1+f(x1)﹣1=f(x1),

∴f(x2)>f(x1),

∴f(x)在R上是增函数;

(Ⅱ)令a=b=﹣2,则f(﹣2﹣2)=f(﹣2)+f(﹣2)﹣1=5,解得f(﹣2)=3,

再令a=b=﹣1,则f(﹣1﹣1)=f(﹣1)+f(﹣1)﹣1=3,解得f(﹣1)=2.

不等式f(3m2﹣m﹣3)<2.化为f(3m2﹣m﹣3)<f(﹣1).

由(1)可得:f(x)在R上是增函数.

∴3m2﹣m﹣3<﹣1,解得﹣<m<1.

∴不等式f(3m2﹣m﹣3)<2的解集为(﹣,1).

6.函数f(x)对任意的a,b∈R,都有f(a+b)=f(a)+f(b)﹣1,并且当x>0时,f(x)>1.

(1)求证:f(x)是R上的增函数;

(2)若f(4)=5,解不等式f(3m2﹣m﹣2)<3.

【分析】(1)先任取x1<x2,x2﹣x1>0.由当x>0时,f(x)>1.得到f(x2﹣x1)>1,再对f(x2)按照f(a+b)=f(a)+f(b)﹣1变形得到结论.

(2)由f(4)=f(2)+f(2)﹣1求得f(2)=3,再将f(3m2﹣m﹣2)<3转化为f(3m2﹣m﹣2)<f(2),由(1)中的结论,利用单调性求解.

【解答】解:(1)证明:任取x1<x2,

∴x2﹣x1>0.

∴f(x2﹣x1)>1.

∴f(x2)=f[x1+(x2﹣x1)]

=f(x1)+f(x2﹣x1)﹣1>f(x1),

∴f(x)是R上的增函数.

(2)∵f(4)=f(2)+f(2)﹣1=5,

∴f(2)=3.

∴f(3m2﹣m﹣2)<3=f(2).

又由(1)的结论知,f(x)是R上的增函数,

∴3m2﹣m﹣2<2,

3m2﹣m﹣4<0,

∴﹣1<m<.

7.函数f(x)对任意的a、b∈R,都有f(a+b)=f(a)+f(b)﹣1,并且当x>0时,f(x)>1.

(1)求证:f(x)是R上的增函数;

(2)若f(2)=3,解不等式f(m﹣2)<3.

【分析】(1)先任取x1<x2,x2﹣x1>0.由当x>0时,f(x)>1.得到f(x2﹣x1)>1,再对f(x2)按照f(a+b)=f(a)+f(b)﹣1变形得到结论.

(2)由f(2)=3,再将f(m﹣2)<3转化为f(m﹣2)<f(2),由(1)中的结论,利用单调性求解.

【解答】解:(1)证明:任取x1<x2,

∴x2﹣x1>0.∴f(x2﹣x1)>1.

∴f(x2)=f[x1+(x2﹣x1)]=f(x1)+f(x2﹣x1)﹣1>f(x1),

∴f(x)是R上的增函数.

(2)∵f(2)=3.

∴f(m﹣2)<3=f(2).

又由(1)的结论知,f(x)是R上的增函数,

m﹣2<2,m<4

∴解不等式f(m﹣2)<3的解集为:(﹣∞,4).

8.已知定义在R上的函数f(x)满足:①f(x+y)=f(x)+f(y)+1,②当x>0时,f (x)>﹣1;

(Ⅰ)求:f(0)的值,并证明f(x)在R上是单调增函数;

(Ⅱ)若f(1)=1,解关于x的不等式;f(x2+2x)+f(1﹣x)>4.

【分析】(Ⅰ)根据已知条件中,:①f(x+y)=f(x)+f(y)+1,②当x>0时,f(x)>﹣1;令x=y=0,即可求出f(0)的值,在R上任取x1>x2,则x1﹣x2>0,根据f(x1)=f[(x1﹣x2)+x2],结合已知条件,即可判断函数的单调性;

(Ⅱ)若f(1)=1,则我们易将关于x的不等式;f(x2+2x)+f(1﹣x)>4化为f(x2+x+1)>f(3),结合(I)的结论,可将原不等式化为一个一元二次不等式,进而得到答案.【解答】解:(Ⅰ)令x=y=0

∵f(x+y)=f(x)+f(y)+1,

∴f(0)=f(0)+f(0)+1

∴f(0)=﹣1,

在R上任取x1>x2,则x1﹣x2>0,

∵当x>0时,f(x)>﹣1,

∴f(x1﹣x2)>﹣1

则f(x1)=f[(x1﹣x2)+x2],

=f(x1﹣x2)+f(x2)+1>f(x2),

∴f(x)在R上是单调增函数.

(Ⅱ)由f(1)=1得:f(2)=3,f(3)=5,

则关于x的不等式;f(x2+2x)+f(1﹣x)>4可化为

关于x的不等式;f(x2+2x)+f(1﹣x)+1>5,

即关于x的不等式;f(x2+x+1)>f(3),

由(Ⅰ)的结论知f(x)在R上是单调增函数,

故x2+x+1>3,

解得:x<﹣2或x>1,

故原不等式的解集为:(﹣∞,﹣2)∪(1,+∞).

9.定义在R上的函数y=f(x)对任意的x、y∈R,满足条件:f(x+y)=f(x)+f(y)﹣1,且当x>0时,f(x)>1.

(1)求f(0)的值;

(2)证明:函数f(x)是R上的单调增函数;

(3)解关于t的不等式f(2t2﹣t)<1.

【分析】(1)用赋值法分析:在f(x+y)=f(x)+f(y)﹣1中,令x=y=0可得:f(0)=f(0)+f(0)﹣1,解可得f(0)的值,即可得答案;

(2)用定义法证明:设x1>x2,则x1=x2+(x1﹣x2),且(x1﹣x2)>0,结合题意可得f (x1)=f[(x1﹣x2)+x2]=f(x2)+f(x1﹣x2)﹣1,作差可得f(x1)﹣f(x2)=f(x1﹣x2)﹣1,分析可得f(x1)﹣f(x2)>0,由增函数的定义即可得证明;

(3)根据题意,结合函数的奇偶性与f(0)=1可得2t2﹣t<0,解可得t的取值范围,即可得答案.

【解答】解:(1)根据题意,在f(x+y)=f(x)+f(y)﹣1中,

令x=y=0可得:f(0)=f(0)+f(0)﹣1,

解可得:f(0)=1,

(2)证明:设x1>x2,则x1=x2+(x1﹣x2),且x1﹣x2>0,

则有f(x1)=f[(x1﹣x2)+x2]=f(x2)+f(x1﹣x2)﹣1,

即f(x1)﹣f(x2)=f(x1﹣x2)﹣1,

又由x1﹣x2>0,则有f(x1﹣x2)>1,

故有f(x1)﹣f(x2)=f(x1﹣x2)﹣1>0,

即函数f(x)为增函数;

(3)根据题意,f(2t2﹣t)<1,

又由f(0)=1且函数f(x)为增函数,

则有2t2﹣t<0,

解可得0<t<.

10.定义在R上的函数y=f(x)对任意的x,y∈R,满足条件:f(x+y)=f(x)+f(y)﹣2,且当x>0时,f(x)>2

(1)求f(0)的值;

(2)证明:函数f(x)是R上的单调增函数;

(3)解不等式f(2t2﹣t﹣3)﹣2<0.

【分析】(1)由题意y=f(x)对任意的x,y∈R,关系式成立,采用赋值法,可得f(0)的值;

(2)利用定义证明其单调性.

(3)利用单调性及f(0)的值,求解不等式即可.

【解答】解:由题意:函数y=f(x)定义在R上对任意的x,y∈R满足条件:f(x+y)=f(x)+f(y)﹣2,

∴令x=y0,

由f(x+y)=f(x)+f(y)﹣2,

可得:f(0)=f(0)+f(0)﹣2,

解得:f(0)=2.

故f(0)的值为:2.

(2)证明:设x1<x2,x1、x2∈R,

则x2﹣x1>0,

由(1)可得f(x2﹣x1)>2.

因为对任意实数任意的x,y∈R,都有f(x+y)=f(x)+f(y)﹣2,

所以f(x2)=f(x2﹣x1+x1)=f(x2﹣x1)+f(x1)﹣2>f(x1)

所以函数f(x)是R上的单调增函数.

(3)解:由(1)(2)可知函数f(x)是R上的单调增函数.且f(0)=2;

不等式f(2t2﹣t﹣3)﹣2<0,变形得f(2t2﹣t﹣3)<2,转化为f(2t2﹣t﹣3)<f(0).故得:2t2﹣t﹣3<0

解得:,

所以原不等式的解集是(﹣1,).

11.已知f(x)是定义在R上的恒不为零的函数,且对于任意的x,y∈R都满足f(x)?f(y)=f(x+y).

(1)求f(0)的值,并证明对任意的x∈R,有f(x)>0;

(2)设当x<0时,都有f(x)>f(0),证明:f(x)在(﹣∞,+∞)上是减函数.【分析】(1)令x=y=0,代入f(x)?f(y)=f(x+y)即可得到f(0)的方程,解之即可求得f(0),再有x=+,即可证得对任意的x∈R,有f(x)>0;

(2)设x1,x2∈R且x1<x2,利用定义法作差,整理后即可证得差的符号,进而由定义得出函数的单调性.

【解答】解:(1)可得f(0)?f(0)=f(0)

∵f(0)≠0

∴f(0)=1

又对于任意又,∴f(x)>0

(2)设x1,x2∈R且x1<x2,则f(x1)﹣f(x2)=f[(x1﹣x2)+x2]﹣f(x2)=f(x2)[f (x1﹣x2)﹣1]

∵x1﹣x2<0

∴f(x1﹣x2)>f(0)=1

∴f(x1﹣x2)﹣1>0

对f(x2)>0

∴f(x2)f[(x1﹣x2)﹣1]>0

∴f(x1)>f(x2)故f(x)在R上是减函数

高一英语上学期期末测试卷及答案

高一英语期末测试卷 第二部分英语知识运用(共两节,满分45分) 第一节: 单项填空(共15小题;每小题1分,满分15分) 从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。 21. — When shall we meet again? —Make it ____ you like; it’s all the same to me. A. one day B. any day C. another day D. some day 22. With the old worker ____ , we finished the work on time. A. help us B. helped us C. helping us D. to help us 23. —What are you going to do this afternoon? —I’ll probably go for a walk later on ____ it stays fine. A. as far as B. so long as C. even if D. as if 24. More and more people come to realize that much must be done to prevent pollution ____ well. A. from living B. to live C. to go D. from going 25. — Mrs. Brown will come to visit our school tomorrow, you know? — Tomorrow? I ____ she ____ today.. A. think; comes B. think; will come C. thought; is coming D. thought; was coming 26. The train ____ arrive at 11:30, but it was an hour late. A. was supposed to B. was likely to C. was about to D. was certain to 27. —Let Pete take the place. He’s older and should be more experienced. —I don’t think so. A man doesn’t necessarily grow wiser ____ he grows older. A. because B. that C. than D. as 28. —This is only between us. — I see. I will ____. A. keep it secret B. keep it a secret C. I won’t let the secret out D. all of the above 29. ____ the window, his finger was cut but it was not serious. A. Cleaning B. While cleaning C. To clean D. When he was cleaning 30. My computer crashed, and ____ I didn’t make a copy of what I had typed. A. what’s worse B. on top of that C. in addition D. all of the above 31. My parents had to use ____ they had to buy the house in which we are now living.. A. what B. what that C. all what D. that 32. — Did you hear the gunshot last night? — Yes, ____ was when I was just about to enter the room ____ I heard it. A. there; when B. it; when C. it; that D. there; that 33. After ____ seemed a very long time, the badly wounded soldier came back to life. A. that B. it C. which D. what 34. —Who would you rather have ____ your computer? —My friend. A. repairing B. to repair C. repaired D. repair 35. You can never imaging what great difficulty I have ____ your house. A. found B. finding C. to find D. for finding 第二节:完形填空(共20小题;每小题1.5分,满分30分) 阅读下面短文,掌握其大意,然后从36~55各题所给的四个选项(A、B、C和D)中,选出最佳选项。

高一上学期期中考试英语试题(含答案)

2019—2020学年上期中考 22届高一英语试题 说明:1.本试卷分第I卷(选择题)和第Ⅱ卷(非选择题)满分150分,考试时间120分钟。 2.将第Ⅰ卷的答案代表字母填(涂)在第Ⅱ卷的答题卷(答题卡)中。 第Ⅰ卷 第一部分听力(共20小题,每小题1.5分,共30分) 第一节(共5小题;每小题1.5分,满分7.5分) 听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 第一节(共5小题;每小题1.5分,满分7.5分) 1.What do we know about Helen? A. She is working full-time this term. B. She doesn’t need to work part-time this term. C. She wants to become a scholar. 2.When does the man have to return the book? A. On Tuesday. B. On Wednesday. C. On Thursday. 3.Why does the woman thank the man? A. He lent her some money. B. He gave her a five-pound note. C. He returned the money she lost. 4.How was the man’s work? A. The working hours were long. B. It was boring. C. The pay was low. 5.What color does the woman want to try? A. White. B. Grey. C.Black. 第二节(共15小题;每小题1.5分,满分22.5分) 听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料,回答第6、7题。 6.How does the man feel? A.Tired. B. Excited. C.Bored.

高一物理必修1第一章单元测试卷及答案

高一物理周考试卷 1.下列说法中正确的是(A C ) A.四川汶川县发生8.0级强烈地震是在2008年5月12日14时28分指的是时刻 B.转动的物体其上各点的运动情况不同,故转动的物体一定不能当做质点C.停泊在港湾中随风摇摆的小船不能被视为质点 D.当物体沿直线朝一个方向运动时,位移就是路程 2、发射到地球上空的人造地球通讯卫星,定点后总是在地球赤道上某一位置的上空,关于人造地球通讯卫星的运动,下列说法中正确的是( AB ) A.以地面卫星接收站为参考系,卫星是静止的 B.以太阳为参考系,卫星是运动的 C.以地面卫星接收站为参考系,卫星是运动的 D.以太阳为参考系,卫星是静止的 3、关于位移和路程,下列说法正确的是(AC ) A.在某段时间内物体运动的位移为零,该物体不一定是静止的 B.在某段时间内物体运动的路程为零,该物体不一定是静止的 C.指挥部通过卫星搜索小分队深入敌方阵地的具体位置涉及的是位移 D.高速公路路牌标示“上海80 km” 涉及的是位移 4、下列事例中有关速度的说法,正确的是( D ) A.汽车速度计上显示80km/h,指的是平均速度 B.某高速公路上限速为110km/h,指的是瞬时速度 C.火车从济南到北京的速度约为220km/h,指的是瞬时速度 D.子弹以900km/h的速度从枪口射出,指的是瞬时速度 5、下列关于加速度的描述中,正确的是( A ) A.物体速度很大,加速度可能为零 B.当加速度与速度方向相同且减小时,物体做减速运动 C.物体有加速度,速度就增加 D.速度变化越来越快,加速度越来越小 6.一架超音速战斗机以2.5马赫的速度(音速的2.5倍)沿直线从空中掠过,下边的人们都看呆了,一会儿众说纷纭,其中说法正确的是 ( bc ) A.这架飞机的加速度真大 B.这架飞机飞得真快 C.这架飞机的加速度不大 D.这架飞机的速度变化真大

最新高一英语上学期期末测试题(含答案)

11-12学年高一上学期期末考试 英语 本试卷分第Ⅰ卷(选择题) 和第II卷(非选择题) 两部分,共120分。考试时间120分钟。 第I卷(选择题三部分共85分) 第二部分英语知识运用(共两节, 满分35分) 第一节单项填空(共15小题;每小题1分,满分15分) 请认真阅读下面各题,从题中所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。 21. Such ________ medical equipment is in ________ danger of breaking down, if not take n good care of. A. a; the B. a; / C. /; the D. /; / 22. Let’s paint one side of the paper red, and _______ side black. A. the other B. another C. the others D. one another 23. Last week, only two people came to look at the house, _______ wanted to buy it. A. none of them B. both of them C. none of whom D. neither of whom 24. _______ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it. A. If B. Because C. Although D. As 25. The manager of the company told us that very little _______ was made of the waste material in the past. A. cost B. value C. use D. matter 26. If you aren’t interested in the subjects your teachers suggest, you can ______ some of them. A. enjoy B. drop C. leave D. prove 27. His movie won several awards at the film festival, _______ was beyond his wildest dream. A. which B. that C. that D. it 28.—The window is dirty. —I know. It _______ for weeks. A. hasn’t cleaned B. didn’t clean C. wasn’t cleaned D. hasn’t been cleaned 29. You can’t imagine ______ when they received these nice Christmas presents. A. how they were excited B. how excited were they C. how excited they were D. they were how excited 30. The under-water meeting in Maldives has been put off _______ the bad weather. A. in charge of B. in search of C. instead of D. because of 31.—What about going to the cinema this evening? —Oh, I don’t know. I’ve got a bit of a headache. _______, John’s coming to see me, so I ought to stay in. A. However B. In other words C. What’s more D. Though 32.—Cathy, the door bell is ringing! I’m doing the dishes. —Mum, I see who it is. A. would B. will C. am about to D. am going to 33. The hotel wasn’t perfectly good, but I ________ in many worse hotels.

高一英语上学期期末测试题(含答案)

英语试题 第Ⅰ卷(总分115分) 第一部分:听力测试(共两节,满分30分) 第一节:(共5小题;每题分,满分分) 听下面5段对话。每段对话后有一个小题,从题中所给的A,B,C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. Why is the man happy A. He’s got a good job. B. He’s got a letter from his father. C. His sister’s got a good job in America. 2. Where will the woman most probably spend the weekend A. At home. B. At a cinema. C. At a restaurant. 3. What does the man suggest the woman do A. Take less exercise. B. Take a new medicine. C. Take less medicine every day. 4. How did the woman go to work before A. By subway. B. By bike. C. By bus. 5. Who has come to the city for a visit A. The man’s parents. B. The woman’s parents. C. The man’s grandchildren. 第二节(共15小题;每题分,满分分) 听下面5段对话或独白,每段对话或独白后有几个小题,从题中所给的A,B,C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各小题,每小题5秒钟;听完后各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料,回答第6至7题。 6. Where are the two speakers A. In a teacher’s office. B. In a book shop. C. In a library. 7. How many books will the man probably take away A. One. B. Three. C. Four. 听第7段材料,回答第8至10题。 8. What does the man think of the car at first A. It’s too old. B. It’s too small. C. It’s too expensive. 9. What does the man have to do before he has the car A. Sign a paper. B. Examine the car again. C. Examine his check again. 10. What can we learn from the conversation A. The car was sold at $ 3,500. B. The man is satisfied with the car. C. The woman took $ 200 off the asking price. 听第8段材料,回答第11至13题。 11. What are the man and the woman mainly talking about

高一上学期期末测试题及答案

2007年度高一上学期期末测试题 仙村中学 林凯 一.选择题(每题5分,共50分) 1.已知集合{}1,2,3A =,集合B 满足{}1,2,3A B =,则集合B 的个数为( ) A 3 B 6 C 8 D 9 (改编自必修1 12 P B 组1) 2.{}{}|34,|2A x x B x x =-<≤=<-,则A B =( ) A {}|34x x -<≤ B {}|2x x < C {}|32x x -<<- D {}|4x x ≤ (改编自必修1 8 P 例5) 3.已知函数(1)(0)()0(0)(1)(0)x x x f x x x x x +>?? ==??-???? D 2|3x x ? ? >??? ? (改编自必修1 74 P A 组7) 7.已知一个几何体它的主视图和左视图上都是一个长为4,宽为2的矩形,俯视图是一个

2021-2022年高一物理下学期周测试题

2021-2022年高一物理下学期周测试题 一、单选题。每小题5分。 1.如图所示为一个做匀变速曲线运动的质点的轨迹示意图,已知在B 点时的速度与加速度相互垂直,则下列说法中正确的是() A.D点的速率比C点的速率小 B.A点的加速度与速度的夹角小于90° C.A点的加速度比D点的加速度大 D.从A到D加速度与速度的夹角一直减小 2.如图所示,质量相同的两小球a、b分别从斜面顶端A和斜面中点B 沿水平方向抛出,恰好都落在斜面底端,不计空气阻力,下列说法正确的是() A.小球a、b在空中飞行的时间之比为2∶1 B.小球a、b抛出时的初速度大小之比为2∶1 C.小球a、b到达斜面底端时的竖直分速度之 比为2∶1

D.小球a、b到达斜面底端时速度方向与斜面夹角之比为1∶1 3.如图所示,x轴在水平方向上,y轴在竖直方向。图中画出了从y轴上不同位置沿x轴正向水平抛出的三个小球a、b和c 的运动轨迹。小球a从(0,2L)抛出,落在(2L,0) 处;小球b、c从(L,0)抛出,分别落在(2L,0)和 (L,0)处。不计空气阻力,下列说法正确的是() A.a和b初速度相同 B.b和c运动时间不相同 C.b的初速度是c的两倍 D.a运动时间是b的两倍 4.人站在平台上平抛一小球,球离手的速度为v 1,落地时速度为v 2 ,不 计空气阻力,如图中能表示出速度矢量的演变过程的是()

5.A、B两个质点分别做匀速圆周运动,在相等时间内通过的弧长之比为,转过的圆心角之比,则下列说法在中正确的是() A.它们的线速度之比 B.它们的角速度之比 C.它们的周期之比 D.它们的向心加速度之比 6.如图所示是一个玩具陀螺。a、b和c是陀螺上的三个点。 当陀螺绕垂直于地面的轴线以角速度ω稳定旋转时,下列 表述正确的是() A.a、b和c三点的线速度大小相等 B.a、b和c三点的角速度相等

高一英语上学期-期末考试试题

2016-2017学年第一学期高一年级期末考试 英语试卷 (考试时间:120分钟,满分:150分) 第I卷(共90分) 第一部分:听力(共两节,满分20分) 第一节(共5小题,每小题1分,满分5分) 请听下面5段对话,选出最佳选项。 1. What's the weather like tomorrow? A. Cloudy. B. Sunny. C. Rainy. 2. What does the man mean? A. He can't help the women. B. He'll pick the woman up. C. He'll go to the engineering building 3. When will the two speakers go on the field trip? A. One Tuesday. B. On Wednesday. C. On Friday. 4. What time is it now? A. 7:35. B. 7:40. C. 8:00. 5. Where does the man plan to go? A. France. B. Australia. C. Korea. 第二节(共15小题,每小题1分,满分15分) 请听下面5短对话或独白,选出最佳选项。 请听第6段材料,回答6、7题。 6. Who will send the file? A. Sam. B. Lucy. C. Carol. 7. Where is the woman? A. At the airport. B. In the office. C. In the hotel. 请听第7段材料,回答8、9题。 8. Why didn't the man go out last night? A. His car broke down. B. He couldn't use his car. C. He didn't feel like going out. 9. What is the woman's plan for next week? A. To watch a volley game. B. To have her car repaired. C. To get a new car. 请听第8段材料,回答10至12题。 10. Which item is the most expensive? A. The belt. B. The wallet. C. The tie. 11. What doesn't the woman like about the wallet? A. The design. B. The price. C. The color. 12. How much will the woman pay for the gift? A. $15.00. B. $19.99. C. $35.99. 请听第9段材料,回答13至16题。

2015-2016学年高一上学期期中考试英语试题(含答案)

2015-2016学年高一上学期期中考试试题 英语 第一卷100分 一、听力(共两节,共30分)略 二、完形填空(共20小题;每小题1.5分,满分30分) 阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。 When I was close to thirty, I was living in a big city. Although I had 31 experience and a Master’s degree, I could not find 32 work. I was 33 a school bus to make some money and 34 with a friend of mine, for I had lost my flat. I 35 five interviews (面试) with a company and one day between bus runs they called to say I did not 36 the job. “Why has my life become so 37 ?” I thought painfully. As I pulled the bus over to 38 a little girl, she handed me a ring 39 I should keep it 40 somebody claimed (认领) it. The ring was painted black and said “BE HAPPY”. At first I got angry. Then I suddenly 41 that I had been giving all of my 42 to what was going wrong with my 43 rather than what was right! I decided then and there to make a 44 of fifty things I was happy with in my life. Later, I decided to 45 more things to the list. That night there was a phone call for me from a lady, 46 was a leader at a large 47 . She asked me if I would 48 a one-day lecture(讲座)on dealing with stress to 200 nurses and workers. I said yes. My 49 there went very well, and before long I got a well-paid job. To this day I know that it was because I changed my way of 50 that I completely changed my life. 31. A. many B. much C. no D. little 32. A. hopeful B. extreme C. good D. successful 33. A. taking B. repairing C. driving D. designing 34. A. living B. traveling C. discussing D. working 35. A. held B. had C. asked D. prepared 36. A. like B. lose C. find D. get 37. A. busy B. hard C. serious D. short 38. A. call on B. drop off C. wave at D. look for

湖南省高一上学期期末考试数学试题(含答案)

湖南师大附中度高一第一学期期末考试 数学 时量:120分钟满分:150分 得分:____________ 第Ⅰ卷(满分100分) 一、选择题:本大题共11小题,每小题5分,共55分,在每小题给出的四个选项中,只有一项是符合题目要求的. 1.已知两点A(a,3),B(1,-2),若直线AB的倾斜角为135°,则a的值为 A.6 B.-6 C.4 D.-4 2.对于给定的直线l和平面a,在平面a内总存在直线m与直线l A.平行B.相交C.垂直D.异面 3.已知直线l1:2x+3my-m+2=0和l2:mx+6y-4=0,若l1∥l2,则l1与l2之间的距离为 A. 5 5 B. 10 5 C. 25 5 D. 210 5 4.已知三棱锥P-ABC的三条侧棱PA、PB、PC两两互相垂直,且PA=2,PB=3,PC=3,则这个三棱锥的外接球的表面积为 A.16πB.32πC.36πD.64π 5.圆C1:x2+y2-4x-6y+12=0与圆C2:x2+y2-8x-6y+16=0的位置关系是 A.内含B.相交C.内切D.外切 6.设α,β是两个不同的平面,m,n是两条不同的直线,则下列命题中正确的是 A.若m∥n,m?β,则n∥βB.若m∥α,α∩β=n,则m∥n C.若m⊥β,α⊥β,则m∥αD.若m⊥α,m⊥β,则α∥β 7.在空间直角坐标系O-xyz中,一个四面体的四个顶点坐标分别为A(0,0,2),B(2,2,0),C(0,2,0),D(2,2,2),画该四面体三视图中的正视图时,以xOz平面为投影面,则四面体ABCD的正视图为 8.若点P(3,1)为圆(x-2)2+y2=16的弦AB的中点,则直线AB的方程为 A.x-3y=0 B.2x-y-5=0 C.x+y-4=0 D.x-2y-1=0 9.已知四棱锥P-ABCD的底面为菱形,∠BAD=60°,侧面PAD为正三角形,且平面PAD⊥平面ABCD,则下列说法中错误的是 A.异面直线PA与BC的夹角为60° B.若M为AD的中点,则AD⊥平面PMB

高一英语上学期期末测试卷(含答案)[1]1

第二部分:英语知识运用(共15小题;每小题1分,满分15分) 从A、B、C和D四个选项中,选出可以填入空白处的最佳选项。 21. My father is enthusiastic about operas and ___ to the theatre once a week. A. went B. goes C. will go D. is going 22. When spring ____, the snow ____ and it will become warm. A. came; will disappear B. came; disappears C. comes; will disappear D. comes; disappears 23. It was a ____ party; people got ____ soon and began to leave one by one. A. boring; bored B. boring; boring C. bored; boring D. bored; bored 24. —Hi, Mark. ____ —I’m fine. Everything is going well. A. So what? B. And what? C. How are things being done? D. How are you 25. I am very impressed ____ the kindness and romance of Frenchmen. A. with B. of C. on D. about 26. He did everything with a full heart. ____, he was always successful. A. By the way B. On one hand C. As a result D. At the start 27. He always tries his best to do everything by himself because he hates __ others. A. to be troubled B. being troubled C. troubling D. trouble 28. Many people would rather ____ successful in business than ____ to improve themselves. A. to become; learn B. become; learn C. becoming; learning D. become; learning 29. She likes ____ but she doesn’t like ____ now, because there are too many people in the pool. A. swimming; to swim B. swim; to swim C. swimming; swimming D. to swim; swimming 30.They stopped ___ information on the Internet for the boy when he came to ask some more questions about the Olympics. A. to look for B. looking for C. look for D. looked for 31. I think I heard somebody _____ next door. Who could it be? A. to cry B. crying C. being crying D. be cried 32. —When should we leave for Paris? —____. Any time is OK with me. A. You have the choice B. It’s up to you C. I don’t care D. Never mind

高一上学期英语期末考试试题

上学期英语期末考试试题 I.听力(共15小题,每小题1分,满分15分) step1 你将从录音上听到五段小对话,每段对话后有一个问题,请根据对话内容选择问题的答案, 1.A.Four times B.Twenty-two times C.Twenty times D.Two times 2.A.He'd like to come along B.He knows the way to the river C.The weather is quite hot D.He'd like to swim in the river 3.A.In a post office B.In a shop C.In a book store D.On a sports ground 4.A.At 9:05 B.At 8:30 C.At 8:40 D.Before 8:30 5.A.Mary B.Dr Brown C.Carl D.Mr Smith step 2根据对话内容回答6—8三个问题 6.A.Go swimming B.Go shopping C.Go skating D.Go climbing 7.A.Fine B.Warm C.Cold D.They have no idea 8.A.Next morning B.That morning C.That evening D.The day after tomorrow Step 3 根据对话内容回答9—11三个问题 9.A.The 8:30 flight B.The 9:45 flight C.The 11:15 flight D.The 9:40 flight 10.A.To spend the weekend with her brother B.To get a ticket for the flight C.To see her brother D.To look for the time-table for the flight 11.A.In a station B.In a post office C.At her home D.In an airport Step 4 根据对话内容回答12—14三个问题 12.A.Her friend B.Bob C.The woman D.A teacher 13.A.Ask Larry to take some oranges to the party. B.Ask Larry to bring some drinks to the party. C.Ask Larry to bring something delicious to the party. D.Ask Larry to bring a few bottles of apple to the party. 14.A.She was taking the message down B.She was taking part in the party. C.She was drinking a bottle of orange. D.She was sending someone to ask Larry. Step 5根据对话内容回答15题 15.A.A smaller one B.A bigger one C.A cheaper one D.An expensive one II.单项选择(共25小题,每小题1分,满分25分) 16.The way they thought of __________ enough money was to sell her hair. A.got B.getting C.to get D.get 17.The number of the people present, as we had expected, ___________ very large. A.was B.were C.is D.are 18.She spent as much time as she could __________ over her lessons. A.go B.to go C.going D.went 19.He went there, _________ some books in a bookshop and called on an old friend of his. A.to buy B.buy C.buying D.bought 20.—Would you mind __________ the window? It's hot in here. —I'd like to. A.closing B.opening C.my closing D.my opening

高一英语上学期测试卷及答案

子洲县职教中心2019级高一年级寒假线上教学小测答案 二、写出下列名词的复数形式:(每空0.5分,共5分) computer---____computers___ baby---___babies__ boy---____boys___ wife---__wives__ book---___books_____ family---___families___ sheep---___sheep___ watch---___watches___ bus---____buses___ woman---__women___ 三、写出下列动词的V-ing形式:(每空0.5分,共3分) Speak---__speaking___ write---__writing___ run---___running__ jump---__jumping____ study---___studying___ have---__having__ 四、写出下列动词的过去式和过去分词:(每空0.5分,共6分) give---__gave__---__given__ learn---__learned/learnt__---_learned/learnt_ run---_ran__---__run__ read---__read__---__read__ talk---__talked__---__talked__ tell---__told__---__told___ 五、写出写了形容词的比较级和最高级形式:(每空0.5分,共6分) big---__bigger___---__biggest__ beautiful---__more beautiful___---_most beautiful__ good---__better__---__best_ little---__less__---__least__ many---__more_---__most__ few---__fewer___---__fewest_ 六、单项选择题:(每空1分,共30分)请将你所选择的答案写在下框内。 1.The girl brushes her __B___ every day before she goes to bed. A. tooths B. teeth C. teeths D. toothes 2.There are some __C____ in these _______. A. knifes pencil-box B. knives pencils-box C. knives pencil-boxes D. knives pencils-boxes 3. My uncle has three ___C____. A.child B.childs C.children D.childrens 4. Would you like ____B___ ,please? A. two glass of water B. two glasses of water C. two glass of waters D. two glasses of waters 5. We will have a _____B______holiday after the exam. A. two month B. two–month C. two month’s D. two–months 6. This is my dress. That one is ______B________. A. Mary B. Mary’s C. sister D. mother 7. If you save ___C_____coins a day, you will be able to buy a mobile phone in a year. A.a little B.little C.a few D.few 8. –Is your mother badly ill? –No, ___C____ , only a little cold. A. serious anything B. serious nothing C. nothing serious D. anything serious 9. Jack and Mary have tried,but____B_____has succeeded in getting the chance to study abroad. A.both B.neither C. all D.either 10. You are much better now. But you have to stay in bed for ___D______two weeks. A.other B.more C. again D.another 11. —Lend me some more money, will you? —Sorry, I’ve got __C_____ at hand myself.You know the iPhone 6 cost me all I had just now. A.nothing B.no one C.none D.no 12.–Do you enjoy traveling by plane? –No. It’s __D_____ expensive. A. much more B. more much C. too much D. much too 13. The new Bright Restaurant is ___B____ than the old one. More and more people like to eat there. A.good B. better C. bad D. worse 14.The football match was ___B____, so the boys were _______ about it. A. excited , exciting B. exciting, excited C. excited , excited D. exciting , exciting 15. The day after tomorrow they ___A_____ a volleyball match. A. will watch B. watches C. is watching D. is going to watch 16. He said he __C___ to draw a plane on the blackboard at that time. A. tries B. tried C. was trying D. will try

相关主题
文本预览
相关文档 最新文档