高一下期末英语试题

高一下期末英语试题（通用8篇）

篇1：高一下期末英语试题

第Ⅰ卷(选择题)

一、选择题(本大题共12个小题，每小题5分，共60分)

1. 若 ， 是两条平行直线，则 的值是( )

A. B. C. D. 的值不存在

2. 已知直线 经过点 ，倾斜角 的正弦值为 ，则 的方程为( )

A. B. C. D.

3.已知 的三边长构成公差为 的等差数列，且最大角的正弦值为 ，则这个三角形的周长为( )

A. B. C. D.

4.若 ，且 ，那么 是( )

A.直角三角形 B.等边三角形 C.等腰三角形 D.等腰直角三角形

5.一个棱长为 的正方体，被一个平面所截得几何体的三视图如图所示，则该几何体的体积为( )

A. B. C. D.

6.若实数 满足 ，则 的最小值是 ( )

A. B. C. D.

7.已知点 在不等式组 表示的平面区域上运动，则 的取值范围( )

A. B. C. D.

8.已知实数 满足 的最小值为 ( )

A. B. C. D.

9.若 是等差数列 的前 项和，其首项 ， ， ，则使 成立的最小的自然数 为( )

A.19 B.20 C.21 D.22

10.设 分别是△ 中角 所对边的边长，则直线 与 的位置关系是 ( )

A.平行 B.重合 C.垂直 D.相交但不垂直

11.已知某几何体的三视图如图所示，则该几何体的表面积为( )

A. B. C. D.

12.如图所示，正方体 的棱长为 ，线段 上有两个动点 ，且 ，则下列结论中错误的是( ).

A. B.

C.三棱锥 的体积为定值 D.异面直线 所成的角为定值

第Ⅱ卷(非选择题)

二、填空题(本大题共4个小题，每小题5分，共20分)

13.求经过点 ，且与两坐标轴所围成的三角形面积为 的直线 的方程____________.

14.《算法通宗》是我国古代内容丰富的数学名书，书中有如下问题：“远望巍巍塔七层，红灯向下倍加增，共灯三百八十一，请问塔顶几盏灯?”其意思为“一座塔共七层，从塔顶至塔底，每层灯的数目都是上一层的 倍，已知这座塔共有 盏灯，请问塔顶有几盏灯?”答____ 盏

15.已知直线 恒过定点 ，若点 在直线 上，则 的最小值为 .

16.在 中， 是角 的对边，则下列结论正确的序号是_______.

① 若 成等差数列，则 ;

② 若 ，则 有两解;

③ 若 ，则 ;

④若 ，则 .

三、解答题(本大题共6道题，共70分)

17.(本小题满分10分)在△ 中，已知 ， 边上的中线 所在直线

方程为 ，AC边上的高线 所在 直线方程为 ，

求：⑴ 顶点 的坐标; ⑵ 边所在直线方程.

18. (本小题满分12分)在 中， 是角 的对边,且 .

(1)求 的值;

(2)若 ，求 的面积 .

19.(本小题满分12分)如图，在三棱柱 中，侧面 ， ， ， ， 为 中点.

(1)证明： ;

(2)在 上是否存在一点 ，使得 ?若存在，确定点 的位置;若不存在，说明理由.

20. (本小题满分12分)已知数列 是公差大于零的等差数列，数列 为等比数列，且 ， ， ，

(Ⅰ)求数列 和 的通项公式

(Ⅱ)设 ，求数列 前 项和

21、(本小题满分12分)已知在 中，角 的对边分别为 ，且 .

(1)求 的值;

(2)若 ，求 的取值范围

22、(本小题满分12分)如图，在四棱锥 中， 底面 , 是直角梯形， , ，

且 ， 是 的中点。

(1)求证：平面平面

(2)若 ，求直线 与平面 所成 角的正弦值。

篇2：高一下期末英语试题

13. 直线l的方程为2x+y+2=0或x+2y-2=0.

14.3

15.4

16.②③

17.解析 ⑴ KAC=-2，

∴AC：y-1=-2(x-5)，即2x+y-11=0

由 联立解得C(4，3)

⑵设B(m，n) ,点 在 上，所以，m—2n—5=0 ①

A(5,1), 所以AB中点M的坐标为M ，

点M在 上，所以， ②

由①②联立解得m= ，n= ,所以B(—1，—3)，

所以，BC边所在直线方程为

18.解：(1)由正弦定理可 设 ，

所以 ，

所以 .

(2)由余弦定理得c2=a2+b2﹣2abcosC，

即4=a2+b2﹣ab=(a+b)2﹣3ab，

又a+b=ab ，所以(ab)2﹣3ab﹣4=0，

解得ab=4或ab= ﹣1(舍去)

所以 .

19.解：(1)∵AA1=A1C=AC=2，且O为AC中点，∴A1O⊥AC.

又侧面AA1C1C⊥底面ABC，交线为AC，A1O⊂平面A1AC，

∴A1O⊥平面ABC.(6分)

(2)存在点E，且E为线段BC1的中点.

取B1C的中点M，

从而O M是△CAB1的一条中位线，OM∥AB1，又AB1⊂平面A1AB，OM⊄平面A1AB，∴OM∥平面A1AB，故BC1的中点M即为所求的E点.(12分)

20.解：(Ⅰ)设数列{an}的公差为d(d>0)，数列{bn}的公比为q，

由已知得： ，解得： ，

∵d>0，∴d=2，q=2，

∴ ，

即 ;

(Ⅱ)∵cn=anbn=(2n﹣1)2n，

∴ ①，

②，

②﹣①得：

=﹣2﹣23﹣24﹣…﹣2n+1+(2n﹣1)×2n+1

=

=6+(2n﹣3)×2n+1.

21.(1)由 ，

应用余弦定理，可得

化简得 则

(2)

即

所以

因为 由余弦定理

得 ，

又因为 ，当且仅当 时“ ”成立。

所以

又由三边关系定理可知

综上

22题.

(1)∵PC⊥平面ABCD，AC平面 ABCD，∴AC⊥PC，

∵AB=2，AD=CD=2，∴AC=BC=，

∴AC2+BC2=AB2，∴AC⊥BC，

又BC∩PC=C，∴AC⊥平面PBC，

∵AC平面EAC，∴平面EAC⊥平面PBC. ---------------------6分

(2) 设 ，则

直线 与平面 所成角为

篇3：高一物理下学期期末检测试题

1.关于曲线运动,以下说法中正确的是()

(A)曲线运动一定是变速运动(B)曲线运动一定是匀速运动

(C)在平衡力作用下,物体可以做曲线运动(D)在恒力作用下,物体可以做曲线运动

2.甲、乙两船在同一河流中同时开始渡河.河宽为H,河水流速为v0.船在静水中的速率均为v,出发时两船相距为.甲、乙两船船头均与河岸成60°角,如图1所示,已知乙船恰好能垂直到达河对岸的A点,则下列判断正确的是()

(A)甲、乙两船到达对岸的时间不同(B) v=2v0

(C)两船可能在未能到达对岸前相遇(D)甲船也在A点靠岸

3.如图2,同一轨道平面上,同向绕地球做圆周运动的三颗卫星A、B、C轨道半径相差不大,某一时刻恰好位于同一直线上,当B经过一周期时,下列说法正确的是()

(A)各卫星都回到原位置上(B) A超前于B,C落后于B

(C) A落后于B,C超前于B (D)不确定

4.如图3所示,甲、乙两个容器形状不同,现有两块完全相同的金属块用细线系着分别浸没入同样深度,这时两容器的水面相平齐,如果将金属块匀速提升相同的位移,但仍浸没在水面以下,不计水的阻力,则()

(A)在甲容器中提升时,拉力做功较多(B)在乙容器中提升时,拉力做功较多

(C)在两个容器中提升时,拉力做功相同(D)做功多少无法比较

5.宇航员测得某行星的半径为R,沿行星表面运转的卫星周期为T,已知万有引力恒量为G,根据以上数据,可以求出的物理量为(已知球体积公式)()

(A)该行星的质量m (B)该行星的平均密度ρ

(C)该行星表面的重力加速度g (D)该行星自转的周期t

6.质量为m的物体,从静止开始以的加速度竖直向下运动了h,下面正确的是()

(A)物体的重力可能做负功(B)物体的重力势能一定减少了

(C)物体的重力势能增加了mgh (D)物体的机械能减少

7.测定运动员体能的一种装置如图4所示,运动员的质量为M,绳拴在腰间沿水平方向跨过滑轮(不计滑轮摩擦和质量),绳的另一端悬吊的重物质量为m,人用力向后蹬传送带而人的重心不动,传送带以速度v向后匀速运动(速度大小可调),最后可用的值作为被测运动员的体能参数.则()

(A)人对传送带不做功

(B)人对传送带做功的功率为mgv

(C)人对传送带做的功和传送带对人做的功大小相等,但正、负相反

(D)被测运动员的值越大,表示其体能越好

8.发射地球同步卫星时,先将卫星发射至近地圆轨道1,然后点火,使其沿椭圆轨道2运行,最后再次点火.将卫星送入同步圆轨道3.轨道1、2相切于Q点,轨道2、3相切于P点,如图5,则当卫星分别在1,2,3轨道上正常运行时,以下说法正确的是()

(A)卫星在轨道3上的速率大于在轨道1的速率

(B)卫星在轨道3上的角速度小于在轨道1上的角速度

(C)卫星在轨道1上经过Q点时的加速度大于它在轨道2上经过Q点时的加速度

(D)卫星在轨道2上经过P点的加速度等于它在轨道3上经过P点的加速度

9.如图6所示,将质量为m的小球用长为L的细线拴住,线的另一端固定在O点,将小球拉到与O等高的位置并使线刚好绷直,由静止开始释放小球,不计空气阻力.下列说法正确的是()

(A)小球在下落过程中机械能守恒

(B)在落到最低点之前,小球重力的功率不断增大

(C)小球落到最低点时刻,线的拉力与线的长短无关

(D)在落到最低点之前,小球的重力一直做正功,线的拉力做负功

10.质量不计的轻质弹性杆P插在桌面上,杆端套有一个质量为m的小球,今使小球沿水平方向做半径为R的匀速圆周运动,角速度为ω,如图7所示,则杆的上端受到的作用力大小为()

(A) mω2R (B)(C)(D)不能确定

11.汽车在平直公路上以速度v0匀速行驶,发动机功率为P.快进入闹市区时,司机减小了油门,使汽车的功率立即减小一半并保持该功率继续行驶.下面四个图象中,哪个图象正确表示了从司机减小油门开始,汽车的速度与时间的关系()

12.如图8所示,用一根长杆和两个定滑轮的组合装置来提升重物M,长杆的一端放在地上通过铰链联结形成转轴,其端点恰好处于左侧滑轮正下方O点处,在杆的中点C处拴一细绳,绕过两个滑轮后挂上重物M.C点与O点距离为L.现在杆的另一端用力,使其逆时针匀速转动,由竖直位置以角速度ω缓缓转至水平位置(转过了90°角),此过程中下述说法中正确的是()

(A)重物M做匀速直线运动(B)重物M做匀变速直线运动

(C)重物M的最大速度是ωL (D)重物M的速度先减小后增大

二、填空题(本题共2小题,共16分,把答案填在题中的横线上.)

13.(8分)在做研究平抛运动的实验时,让小球多次沿同一轨道运动,通过描点法画出小球平抛运动的轨迹.

(1)为了能较准确地描绘运动轨迹,下面列出一些操作要求,将你认为正确选项的前面字母填在横线上:______.

(a)通过调节使斜槽的末端保持水平

(b)每次释放小球的位置必须不同

(c)每次必须由静止释放小球

(d)记录小球位置用的木条(或凹槽)每次必须严格地等距离下降

(e)小球运动时不应与木板上的白纸(或方格纸)相接触

(f)将球的位置记录在纸上后,取下纸,用直尺将点连成折线

,,(2)若用一张印有小方格的纸记录轨迹,小方格的边长为L,小球在平抛运动途中的几个位置如图9中的a、b、c、d所示,则小球平抛的初速度的计算式为v0=______(用L、g表示).

14.(8分)在做“验证机械能守恒定律”的实验时,实验小组不慎将一条选择好的纸带的前面一部分损坏了,剩下的一部分纸带上各点间的距离如图10,所示的数值,已知打点计时器的周期为T=0.02 s,重力加速度g=10.0m/s2;重锤的质量为m,已知s1=09.8 cm,s2=1.42 cm,s3=1.78 cm,则记录B点时重锤的动能EKB=图10______J,记录C点时重锤的动能EKC=0.320 mJ;重锤从B点到C点重力势能变化量是______J,动能变化量是______J.从而可以得出结论:______.(该题均保留3位有效数字)

三、计算题(本题共4小题,共36分,解答应写出必要的文字说明、方程式和必要的演算步骤.只写出最后答案的不能得分.有数值计算的题,答案中必须明确写出数值和单位.)

15.(7分)我国已在2007年4月份发射一颗绕月运行的探月卫星“嫦娥1号”.设“嫦娥1号”卫星环绕月球做圆周运动,并在此圆轨道上绕行n圈,飞行时间为t.已知月球半径为R,月球表面的重力加速度为g.导出飞船在上述圆轨道上运行时离月球表面高度h的公式(用t、n、R、g表示)数理化学习(高中版)

16.(8分)质量为5×103 kg的汽车在t=0时刻速度v0=10 m/s,随后以P=6×104 W的额定功率沿平直公路继续前进,经72 s达到最大速度,设汽车受恒定阻力,其大小为2.5×103N.求:

(1)汽车的最大速度vm;

(2)汽车在72 s内经过的路程s.

17.(9分)如图1 1所示,质量为m的小球用长为L的轻质细线悬于O点,与O点处于同一水平线上的P点处有一个光滑的细钉,已知,在A点给小球一个水平向左的初速度v0,发现小球恰能到达跟P点在同一竖直线上的最高点B.则:

(1)小球到达B点时的速率?

(2)若不计空气阻力,则初速度v0。为多少?

(3)若初速度,则在小球从A到B的过程中克服空气阻力做了多少功?

18.(12分)如图12所示,轻杆长为3L,在杆的A、B两端分别固定质量均为m的球A和球B,杆上距球A为L处的点O装在光滑的水平转动轴上,杆和球在竖直面内转动,已知球B运动到最高点时,球B对杆恰好无作用力.求:

(1)球B在最高点时,杆对水平轴的作用力大小.

(2)球B转到最低点时,球A和球B对杆的作用力分别是多大?方向如何?

高一物理下学期期末检测试题参考答案

一、选择题(每小题4分,共48分)

1.(A)(D) 2.(B)(D) 3.(B) 4.(C)5.(A)(B)(C) 6.(D) 7.(B)(D)8.(B)(D) 9.(A)(C) 10.(C) 11.(C)12.(C)

二、填空题(共16分)

13.(共8分)(1)a c e (2)14.0.180 m 0.142 m 0.140 m

在实验误差范围内,只有重力做功时,物体的机械能守恒

15.解析:设月球质量为M,探测器质量为m,引力常量为G,在圆轨道上运行周期为T,由万有引力定律和牛顿第二定律得

(2)A→B由动能定理得,

此时球A的速度为,设此时杆对球A的作用力为FA,则,FA=1.5mg,A球对杆的作用力为mg,

水平轴对杆的作用力与A球对杆的作用力平衡,再据牛顿第三定律知,杆对水平轴的作用力大小为F0=1.5 mg.

(2)设球B在最低点时的速度为vB,取O点为参考平面,据机械能守恒定律有

篇4：新目标七年级下期末测试题（一）

1. ——How’s the weather in Harbin? ——It’s ____.

A. snowB. snowsC. snowingD. to snow

2. Her father is a teacher. He ____ in a high school.

A. teachB. teachsC. teachesD. teaching

3. ——____? ——She’s a nurse.

A. What’s your mother doingB. How’s your mother

C. What does your mother doD. Is your mother a nurse

4. That old woman likes nice words about her ____.

A. look atB. lookingC. good-lookingD. looks

5. Today you can ____ your father’s car to school.

A. takeB. goC. byD. in

6. ——What ____ the boys ____?

——They’re playing football.

A. is， doing B. are， doing C. do， doD. does， do

7. What ____ do you want?

A. other B. others C. else D. else’s

8. There is a small house ____ on the hill(小山).

A. standsB. standC. standingD. stood

9. It’s boring. I ____ it.

A. can’t standB. loveC. enjoyD. don’t mind

10. ——What did you do last night?

——I didn’t do ____.

A. everythingB. somethingC. anythingD. nothing

Ⅱ.用所给词的适当形式填空。

1. It’s only ten ____(minute) walk from the station to the hotel.

2. The cat is washing ____(it) face. Isn’t it funny?

3. We often go ____(swim) in summer.

4. Listen! Who ____(sing) in the next room?

5. Now he ____(take) off (脱下) his clothes.

6. ——Did you ____(have) a great time?

——Yes， I did.

7. We are enjoying ____(watch) a football match on TV.

8. Her job is to look after ____(child).

9. Don’t make the child ____(cry).

10. Do you mind my ____(take) this place?

Ⅲ.将下列句子重新排列为一段意思通顺的对话(5分)

A. What are we going to buy for Mother for her birthday?

B. No， she already has a lot of cookbooks.

C. Great idea! She’ll like that.

D. I know one thing she likes—cooking.

E. Oh， she does? Then let’s get her a cooking video.

F. OK. Then how about getting her a cookbook?

G. I’ll order one over the Internet tonight.

H. I don’t know. What does she like?

_______________________________

Ⅳ.补全对话，每空不限于一个单词

A: Can I help you?

B: __1__. I’m looking for a shirt for myself.

A: What size do you wear?

B: Size 40.

A: __2__?

B: Blue， please if you have.

A: I think this will be very nice.

B: Can I try it on here?

A: __3__.

B: (Coming out of the change room. ) I think it’s OK. But I’m afraid it’s a bit expensive. Can I get it at a discount(打折)?

A: Yes. It’s 10% off today.

B: OK. __4__. By the way， do I have to pay cash (现金)?

A: Yes. Only cash. (Handing over the shirt. ) Here you are.

B: Thank you.

A: __5__.

1.____2.____ 3.____ 4.____ 5.____

Ⅴ.完形填空

Miss Williams is __1__ English teacher. Her __2__ is near her school. This morning, it’s very cold and __3__. __4__ her way to school, her eyes and face become red. She goes to her office __5__. It is warm there. Just then, a boy comes in and __6__ her. “Can I help __7__, Miss Williams?” The boy asks. “There’s nothing __8__； everything is OK.” Miss Williams answers. “Why are you crying? School’s not so bad.” The boy says. “I am not crying, it’s too cold and windy __9__, so my eyes and face turn red. School’s not so bad. I think __10__, too,” Miss Williams smiles.

1. A. aB. anC. the

2. A. homeB. familyC. house

3. A. windyB. windC. warm

4. A. InB. OnC. By

5. A. quietlyB. quicklyC. quick

6. A. sees B. seeC. saw

7. A. youB. yourC. yours

8. A. rightB. wrongC. all right

9. A. insideB. hereC. outside

10. A. yesB. thatC. so

Ⅵ.阅读理解

Mrs Jackson is a Canadian doctor. She is now in Shanghai. She works in a hospital. She likes Chinese medicine(医学) very much. She thinks the Chinese medicine is very strange(神奇). She wants to know much about Chinese medicine. So she is learning Chinese and can read much Chinese, too.

Her husband, Mr Jackson, is a manager of a big company(公司). He works very hard, too. He goes to work on weekdays. Sometimes, on Sat-urday and Sunday, he has to work, too. He is very busy. He has many things to do every day. He makes much money.

1. What does Mrs Jackson like very much?

_________________________________

2. Where does she work now?

_________________________________

3. Why does she learn Chinese?

_________________________________

4. Does Mr Jackson have to work on Saturday and Sunday sometimes?

_________________________________

5. They are very rich(富有的), aren’t they?

_________________________________

Ⅶ.阅读改错(本文有10个错误，在错词下面划线，并改正)

In sunday morning， Jack often goes shopping and his mother. The shop isn’t far to his home. They often go to there on foot， but some-times they goes there by bus. The shop is big and it sell a lots of things: milk， Coke， fruits， fish and so on. The shop assistant are very friendly. They help we choose(挑选，选择) things.

1.____ 2.____ 3.____ 4.____ 5.____

6.____ 7.____ 8.____ 9.____ 10.____

Ⅷ.写作练习

根据下面的提示写一篇不少于50词的短文

1.布鲁斯(Bruce)的叔叔住在乡下。布鲁斯经常在暑假时回来看叔叔；

2.叔叔所在的村子(village)有许多高高的树以及漂亮的花，布鲁斯很喜欢这个村子；

3.叔叔有3只小狗，布鲁斯经常喂(feed)小狗，他很喜欢和狗玩，他在乡下玩得很高兴。

篇5：高一数学下期末考试题带答案

一、选择题：本大题共12小题，每小题5分，共60分，在每小题给出的的四个选项中，只有一项是符合题目要求的.

1. 从学号为0～50的高一某班50名学生中随机选取5名同学参加数学测试,采用系统抽样的方法,则所选5名学生的学号可能是( )

A. 1, 2, 3, 4, 5 B. 2, 4, 6, 8, 10 C. 4, 14, 24, 34, 44 D. 5, 16, 27, 38, 49

2.228与1995的最大公约数是( )

A.57 B.59 C.63 D.67

3.已知 为角 的终边上的一点 ，且 ，则 的值为

A. B. C. D.

4.我校高中生 共有2700人，其中高一年级900人 ，高二年级1200人，高三年级600人，现采取分层抽样法抽取容量为135的样本，那么高一、高二、高三各年级抽取的人数分别为( )

A.45，75，15 B.45，45，45 C.30，90，15 D.45 ，60，30

5.将二进制数 转化为十进制数，结果为( )

A.51 B.52 C.53 D.54

6.抛掷一枚骰子，记事件A为“落地时向上的数是奇数”，事件B为“落地时向上的数是偶数”，事件C 为“落地时向上的数是2的倍数”，事件D为“落地时向上的数是4的倍数”，则下列每对事件是互斥事件但不是对立事件的是( )

A. A与BB. B与C C.A与 D D.B与D

7.函数 的部分图象如图 所示，若 ，且 ，则 ( )

A. B. C. D.

8. 已知程序框图如右图，如果输入三个实数a、b、c，

要求输出这三个数中最大的数，那么在空白的判断框中，

应该填入 ( ).

A. B. C. D.

9.一组数据中的每个数据都减去80，得一组新数据，若求

得新数据的平均数是1.2，方差是4.4，则原来数据的平均数

和方差分别是 ( )

A. 81.2, 84.4 B. 78.8 , 4.4

C. 81.2, 4.4 D. 78.8, 75.6

10.已知关于 的一元二次方程 ，若 是

从区间任取一个数， 是从区间任取的一个数，

则上述方程有实根的概率为( )

A. B. C. D.

11.有两个质地均匀、大小相同的正四面 体玩具，每个玩具的各面上分别写有数字1，2，3，4.把两个玩具各抛掷一次，向下的面的数字之和能被5整除的概率为 ( )

A.116 B.14 C.38 D.12

12.在直角△ABC中，∠BCA=90°，CA=CB=1，P为AB边上的点且 ，若 ，则λ的取值范围是( )

A.[ ，1] B.[ ， 1 ] C.[ ， ] D.[ ， ]

第II卷 非选择题(共90分)

二、填空题：本大题共4小题，每小题5分，共20分，把答案填在答题卷的横线上.

13.在如图所示的茎叶图中，甲、乙两组数据的中位数

的和是______________

14.已知 ，其中 为第三象限角，

则 ______.

15.用秦九韶算法计算多项式 在 时的值时, 的值为 _________________.

16.给出下列命题：① 存在实数 ，使 ;②若 是第一象限角，且 ，则 ;③函数 是奇函数;④函数 的周期是 ;⑤函数 的图象与函数 ( )的图像所有交点的横坐标之和等于6.

其中正确命题的序号是 (把正确命题的序号都填上)

三、解答题(本小题共70分，解答应写出文字说明、证明过程或演算步骤)

17.(本小题满分10分)

已知 是方程 的两根，且 .

(1)求 的值; (2)求 的值.

18.(本小题满分12分)

已知函数 的最大值是 ，其图象经过点 .

(1)求 的解析式;

(2)已 知 ， ，且 ， ，求 的值.

19. (本小题满分12分)

某校从参加考试的学生中抽出60名学生，将其成绩(均为整数)分成六组后画出如下部分频率分布直方图.观察图形的信息，回答下列问题：

(Ⅰ)求成绩落在的学生中任选两人，求他们在同一分数段的概率.

20.(本小题满分12分)

某种产品在五个年度的广告费用支 出 万元与销售额 万元的统计数据如下表：

2 4 5 6 8

20 35 50 55 80

(I)根据上表提供的数据，求出 关于 的线性回归方程;

(II)据此模型估计某年度产品的销售额欲达到108万元，那么本年度收入的广告费约为多少万元?(回归方程为 其中： )

21.(本小题满分12分)

某校高一(1)班有男同学45名，女同学15名，老师按照分层抽样的方法抽取4人组建了一个课外兴趣小组.

(I)求课外兴趣小组中男、女同学的人数;

(II)经过一个月的学习、讨论，这个兴趣小组决定选出两名同学做某项实验，方法是从小组里选出一名同学做实验，该同学做完后，再从小组内剩下的同学中选出一名同学做实验，求选出的两名同学中恰有一名女同学的概率;

(III)在(II)的条件下，第一次做实验的同学A得到的实验数据为38,40,41,42,44，第 二次做实验的同学B得到的实验数据为39,40,40,42,44，请问哪位同学的实验更稳定?并说明理由.

22.(本小题满分12分)

如图，已知OPQ是半径为 ，圆心角为 的扇形，C是扇形弧上的动点，ABCD是扇形的内接矩形.记 ，求当角 取何值时 ，矩形ABCD的面积最大?并求出这个最大面积.

参考答案

一. 选择题

1. C 2. A 3. B 4. D 5. A 6. C 7. D 8. D 9. C 10. A 11. B 12. B

二.填空题 13. 64 14. 15. 16. ⑤

三、解答题 17.答案：( 1). 是方程 的两根，

.

……………5分

(2). ， ，且 ， ………………………10分

18. 解：(1)依题意有 …………………………1分

则 ，将点 代入得 ，………3分

而 ， ， ，

故 ……………………………………………6分

(2)依题意有 ，而 ，…………………8分

，…………………10分

…………12分

19. 解(Ⅰ)成绩落在的学生中任选两人，他们的成绩在同一分数段”， 表示“所选两人成绩落在内”，则 和 是互斥事件，且

, 从而 ,

因为 中的基本事件个数为15， 中的基本事件个数为3，全部基本事件总 数为36，

所以 所求的概率为 ……………………………12分

20解：(Ⅰ) ……………………………………………2分

，……………………………………6分 ，

故 关于 的线性 回归方程为： ……8分

(Ⅱ)当 时，代入回归直线方程得 ，

故本年度投入的广告费用约为11万元.……………………………12分

21.解：(Ⅰ)设课外兴趣小组中有 名男同学，

则 解得 =3，

所以男同学的人数为3、女同学的人数分别为1. ……………3分

(Ⅱ)把三名男同学和一名女同学分别记为 则选取两名同学先后做实验的基本事件有：

共12种， …………………5分

其中有一名女同学的情况有6种， …………………6分

所以选出的两名同学中恰有一名女同学的概率为 …………8分

(Ⅲ)由题知， ……9分

，

……………11分

故同学B的实验更稳定. …………………………12分

22解：如图，在 中，OB=cosα，BC=sinα，

在Rt△OAD中， =tan60°= ，所以OA= DA= BC= sinα.

所以AB=OB﹣OA=cosα- sinα.………………4分

设矩形ABCD的面积为S，则

S=AB•B C=(cosα- sinα)sinα

=sinαcosα - sin2α

= sin2α+ cos2α﹣

= ( sin2α+ cos2α)﹣

= sin(2α+ )- .……………………… ………8分

由于0<α< ，所以当2α+ = ，

即 α= 时， = ﹣ = .

篇6：厦门高一下期末英语作文

One day,I went to school as Usually. All of a sudden,I heard a voice crying.I knew there were something wrong . So I walked towards the direction of the voice .Then I found a child and his mother wandered off.My heart full of compassion . So I decided to help him find his mother , and I took him to the police station nearby . Then I went to school in a hurry , but when I arrived,I found I’m still late . After my teacher’s preaching , I went back to the classroom .I was so upset.

In the afternoon, my teacher asked me go out,he said he had wronged me. And then I saw the child’s mother,she thanked me a lot,and I smiled shyly.

篇7：八年级英语下期末试题及答案

1—5 ABBBA 6—10 CCBCB

11—15 CBACA 16—20 ACBAC

二、选择15 ABADC DDBBD CBDAD

三、 完型填空15 CBCDC ABDDC BCABD

四、阅读20 ABDCB CCBAD

五、任务型阅读1. How/Ways 2. Tips/Advice 3 believe 4 confident 5 things/results

6. success 7. studying 8. cover 9. check /test 10. preparations

六、阅读表达

七、1. Chinese people 2. Leaves.

3. They are usually made of cloth or paper.

4. In April. 5. Spying, fighting, fishing

七、词汇 purpose grammar separate shapes education developing successfully proudest were sent expressing

八、首字母填空 1.seem 2.such 3.from 4.changed 5.surprise

6.students 7.themselves 8.another 9.least 10.believes

九、书面表达

With the development of the society, to learn well is not the only thing a student should do. To be a qualified(合格的) middle school student, I think we have a lot of things to do.

First, we usually learn to look after ourselves. We should work to high standards and we are modest and easy to work with. Second, we should have good reading habits to improve ourselves. Third,we should pay attention to protecting the environment. We must not drop litter carelessly. We had better go to school on foot or by bicycle. Fourth, we should learn about good table manners and behave politely. We should wait for everyone to finish before you leave the table. We should queue, we must not push in before others.

Moreover,in our spare time,we should care about the disabled and give them a chance to show their skills to the public.Also,we should go out to enjoy the beauty of nature in order to understand the importance of protecting nature.

篇8：八年级下期末自测题

从A、B、C、D四个选项中选择可以填入空白处的最佳答案。(每小题1分,共20分)

()1.No one can help you all the time.You should be______control of your life.

A.for B.at C.on D.in

()2.There was something wrong with his car and he repaired it______himself.

A.on B.to C.by D.with

()3.The hotel provides a shoe cleaning service______guests.

A.for B.from C.on D.with

()4.We lost the game______everyone played well.

A.when B.because C.until D.although

()5.The rain beat_______her face as she walked through the wind and rain.

A.at B.against C.in D.from

()6.He is creative.He’s going to turn his car_____a playroom for the children.

A.with B.into C.in D.from

()7.Mr.Green is a kind man.He always tries his best to help______weak.

A.a B.the C.an D.不填

()8.The apartment my parents live in is about 360 square feet_______size.

A.for B.on C.in D.at

()9.When I got to my apartment,I saw my son running_____me happily.

A.around B.with C.toward D.about

()10.Liu Jing’s mother is very kind and she often speaks_______a kind way.

A.for B.by C.in D.of

()11.We have shirts in different colors______40 yuan each.

A.of B.with C.for D.at

()12.We regard Amy______one of the most successful fi lm actresses.

A.to B.with C.as D.of

()13.______have you lived in the countryside?

—Since fi ve years ago.

A.How soon B.How long C.How often D.How much

()14.______we grow up,our parents get older.

A.Unless B.Although C.As D.While

()15.Her own twelve pictures sold very well,______to friends and family.

A.usually B.Mostly C.Hardly D.recently

()16.She hasn’t_____decided if she will come or not.Let’s wait for her answer.

A.already B.yet C.ever D.never

()17.During his second day Edward looked_____more tired than on his fi rst day.

A.even B.quite C.only D.pretty

()18.We have different opinions______the matter.

A.about B.of C.in D.at

()19.Stop_______—you’re giving me a headache!

A.shouting B.shout C.to shout D.shouted

()20.It’s_______—I’m sure I locked the front door just now but now it’s open.

A.strange B.Useful C.Simple D.crazy

二、情景交际

(一)根据对话内容,从方框中选择恰当的选项补全对话,其中有两项多余。

A:Hi,Ken.You don’t look very good.(21)______

B:I have a cold.

A:Why don’t you go home?

B:I can’t.(22)______But I don’t feel well.

A:Talk to Carol.She will understand.

B:OK.(23)______

A:Feel better soon!

(In Carol‘s offi ce)

B:Hi,Carol.Can I ask for leave(请假)?

C:What’s wrong,Ken?(24)______

B:No.But I have a sore throat.

C:(25)______You can go home.

B:Thanks,Carol.But I’m sorry I can’t fi nish the work today.

C:Don’t worry about your work.Go home and get better!

A.Do you have a sore throat?

B.I have too much work to do.

C.Should I take some medicine?

D.You probably have a cold.

E.What’s the matter with you?

F.I will go to her offi ce now.

G.Do you have a fever?

(二)根据对话内容,在空白处填上恰当的句子,使对话完整、通顺。

A:Mark,I plan to volunteer to work in the old people’s home.Are you interested in it?

A:This Saturday.The weather will be fi ne.

(In the old people’s home)

A:Oh,the house is in a mess(杂乱不堪)!

B:(27)_______________________?

A:You should clean out these old boxes fi rst.

B:OK.This cleaning job is so easy.What’s Rob’s job?

A:He is cleaning the whole living room.The lights,the floor...everything!

B:(28)_______________________?

A:Yes.I will help him.

(In the living room)

A:Rob,how is your cleaning going?

C:Not very well.I still have a lot to do.

A:I can help you.(29)_______________________?

C:You just need to clean the fl oor.

A:OK.I can fi nish that quickly.

C:And one more thing!

A:(30)_______________________?

C:Can you play some music?We can listen to music while we clean.

三、完形填空

先通读下面的短文,掌握其大意,然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。(每小题1分,共10分)

A

Do you know who played the role of Superman in the fi lm Superman?He was Christopher Reeve,a(n)31,and he was famous for his performance in the movie.

Like Superman,Christopher Reeve was afraid of nothing.He was good at fl ying planes,riding horses and many other activities.But32changed(改变)in 1995.When riding a horse,he fell and33himself badly.The doctors thought it was34for him to live long.Reeve even thought of35his life to end everything.36,when he thought of his family,he knew he couldn’t.From then on,he began to37for his life.

At the end of 1995,he left hospital.Soon after that,he felt he was ready to face the world again.He wanted to tell people no matter38problems they had,they shouldn’t give up.He began to make speeches,and they helped lots of people39body problems.

He also went back to work and made his first film,In the Gloaming.Although he lost control of his body,he still had his40and his dream.He was,and would always be Superman!

()31.A.expert B.actor C.reporter D.visitor

()32.A.something B.anything C.everything D.nothing

()33.A.hurt B.lost C.turned D.sent

()34.A.available B.serious C.diffi cult D.useful

()35.A.looking up B.coming up C.making up D.giving up

()36.A.However B.Certainly C.Hardly D.Again

()37.A.look B.fi ght C.serve D.wait

()38.A.when B.which C.that D.what

()39.A.in B.for C.with D.of

()40.A.reason B.culture C.trouble D.spirit

B

Dear Deborah,

Thanks to you,we are able to have a comfortable“home”for our children to live and learn in this year.Last Monday,Michael and his sister,Janet,celebrated Michael’s 9th birthday41cake and cards in the nice place.There was a look of joy on their lovely42.

Thank you for your kind gift of$1,000 to Children’s Residential Services of Greater Boston.For the homeless children like Michael and Janet in our center,your kindness makes a43to them.

With your help,we’ll buy new computers for our children in a day or two.The children can’t44to use the computers to do their homework and talk with their friends!

The computers are part of our Excellence in Service Campaign that will make our“home”even45for Michael,Janet and their new friends.

We would love you to visit our“home”,46you can meet our children.We love to show you around our“home”,and the children enjoy47visitors.One or two might even show you48they can do with their new computers.

Janet Teebs,our development director(负责人),is always49to set up a visit for you,or to answer any question you may have.Please50her at 520-446-0912,or e-mail her at janetteebs@CRS.com.

Again,thank you for all you did for our children.You are a part of their lives too.

Sincerely,

Malcolm Wexter

Executive Director

()41.A.for B.on C.about D.with

()42.A.eyes B.faces C.hearts D.mouths

()43.A.decision B.message C.difference D.problem

()44.A.wait B.try C.remember D.choose

()45.A.dirtier B.Noisier C.nicer D.bigger

()46.A.so B.unless C.until D.or

()47.A.organizing B.training C.meeting D.controlling

()48.A.what B.when C.how D.why

()49.A.busy B.upset C.welcome D.available

()50.A.hear B.call C.watch D.write

四、阅读理解(每小题2分,共60分)

A

One cold Sunday,Mariko and her dad were walking to the store.

“I’m tired of winter,”said Mariko.

Dad waved(挥手)at their neighbor.“I know Mr.Hill hopes spring will come too.”

Mr.Hill was sitting and enjoying the sun in his garden(花园).He waved,and Mariko waved back.

“Mr.Hill loves his garden,”said Mariko.Mr.Hill had the most beautiful spring fl ower garden.It was full of daffodils(黄水仙).

Dad said,“Yes,he does.And because he is old,it is hard for him to go outside in winter.”

At the store,Mariko helped Dad choose milk,bread and carrots.

“You may choose something for yourself,Mariko,”said Dad.

At first Mariko thought apples would taste good.But then something else caught her eye,“Oh,Dad,look,daffodils!”

“Is that something you want?”asked Dad.

“Yes!”Mariko said happily.

Mariko couldn’t stop looking at her daffodils all the way home.But when she got to Mr.Hill’s house,she stopped,“Maybe I could...”

“Wait here,Dad,please,”she said.“I’ll be right back.”

Mariko ran to Mr.Hill and gave him the daffodils.

“What a wonderful winter surprise!”said Mr.Hill.“You have brought me spring!”

根据材料内容选择最佳答案。

()51.What did Mariko and her father do on Sunday?

A.They did some shopping.B.They worked in the garden.

C.They visited their neighbors.D.They helped Mr.Hill pick fl owers.

()52.What did Mariko and her father NOT bring home?

A.Apples.B.Carrots C.Milk D.Bread

()53.Mariko chose daffodils probably because______.

A.they were colorful B.her mother liked them

C.her garden needed new fl owers D.the fl owers made her think of spring

()54.From the story,we know that Mariko______.

A.disliked shopping B.liked daffodils best

C.was popular with her neighbors D.was kind and thought of others

()55.What is the best title of the story?

A.A shopping day B.A winter surprise

C.Beautiful fl owers D.Spring and winter

B

“Mom,you won’t believe what Anna’s grandfather bought her for her birthday!”shouted Michelle.

“What?”asked Mom.

“A horse,”said Michelle.“Can I have one for my birthday?”

“No,Honey!I’m sorry but we don’t have enough money,”said Mom.

Michelle walked to her room.The phone rang(响起铃声),and Michelle answered.

“Will you get one for your birthday?”asked Anna.“We can ride them together.”

“No,”said Michelle.“Mom said we don’t have enough money.”

“Oh.Er...I have to feed Sir Charles.See you tomorrow,”said Anna.

“Maybe I can help Anna feed Sir Charles,”thought Michelle.She picked up the phone,but her mom was on the phone.

“That would be wonderful.I think she’ll enjoy the riding lessons,”said Mom.

Michelle even didn’t hear her mom walk in the room.

“Honey,I want to talk to you,”said Mom.

Michelle put the phone down.“I didn’t mean toeavesdrop.I was going to call Anna,”said Michelle.

“So you heard about the riding lessons?”asked Mom.

“Yes,”said Michelle.

“I don’t have enough money to buy a horse,but I thought you’d like to learn to ride it.Mrs.Mayberry gives lessons every Saturday.She said you and Anna could be in the same class.I know it’s not the same as having your own horse,but...”said Mom.

“It’s better,”said Michelle.

“Why?”asked Mom.

“Anna has to feed Sir Charles every day.It takes lots of time,”said Michelle.

“So you’re satisfi ed?”asked Mom.

“Of course.It’s the best birthday gift ever,”said Michelle.

根据材料内容选择最佳答案。

()56.Michelle’s mom didn’t agree to buy her a horse because______.

A.she didn’t like horses

B.a horse needed too much money

C.Michelle didn’t have time to care for a horse

D.it was dangerous for Michelle to ride a horse

()57.Sir Charles was______.

A.a horse B.a dog C.Anna’s grandfather D.Michelle’s grandfather

()58.The underlined word“eavesdrop”in the passage means“_____”in Chinese.

A.抱怨B.放弃C.偷听D.拒绝

()59.Which of the following is TRUE according to the passage?

A.Michelle didn’t like feeding horses.

B.Anna wanted Michelle to help her feed her horse.

C.Anna’s father bought her a horse for her birthday.

D.Michelle would learn to ride a horse from Mrs.Mayberry.

()60.What’s the best title of the passage?

A.A telephone call

B.Anna and Michelle

C.How to ride a horse

D.The best birthday gift

C

Dear Tommy,

I’m in Paris now!Mom,Sally and I came here to visit my uncle.We are having a wonderful time.Dad didn’t come because his company(公司)sent him to work in Japan last month.He will have to stay there until November.

For Sally and me,it’s our first time to come to France.We are so excited!Last week Mom went to different shows alone.She used to study in Paris,so she knows the city well.Sally and I visited many interesting places with Aunt Susan.Although we can’t speak French,it’s OK.Aunt Susan and Uncle Tyler can speak both French and English.

Yesterday afternoon,Mom,Sally and Aunt Susan stayed home cooking dinner.Uncle Tyler took me fi shing.We drove for an hour and fi nally arrived at his favorite lake.First,we walked around the lake looking for a good place to fi sh.Uncle Tyler said we should fi sh from the top of a large rock.

I was so interested in catching a fi sh that when I threw my fi shing line and hook(鱼钩)out,the rod(鱼竿)went with them!Uncle Tyler got my rod out of the lake.Then he said that next time,I should wait until he put bait(鱼饵)on the hook.

We fi shed for two hours and my uncle caught four fi sh.He is a fantastic fi sherman.The only thing I caught was a cold.I can’t wait to go again soon,so I can become a great fi sherman like him.

Yours,

Frank

根据材料内容选择最佳答案。

()61.Frank’s father went to Japan to______.

A.work B.study C.take a holiday D.visit his brother

()62.Who CANNOT speak French?

A.Susan and Tommy B.Sally and Susan.

C.Frank and Tommy D.Sally and Frank.

()63.Which word best describes Frank when he was fi shing?

A.Bored.B.Excited.C.Angry.D.Careful.

()64.Which of the following is TRUE according to the letter?

A.Frank will stay in Paris with his family until November.

B.Frank got sick after he fi shed in the lake with his uncle.

C.Sally used to study in Paris and she visited many places there.

D.Sally spent an hour cooking dinner with her mother and aunt.

()65.What will Frank probably do if Tyler asks him to go fi shing next time?

A.Go with him.

B.Send him a newrod.

C.Say no to him.

D.Prepare some bait himself.

D

Hi!I’m Lilly.My family and I live in a big house.I’m 11 and I have a younger brother,Tom.He is 8.

My mom is a nurse,and she works in a hospital.She works a lot,and usually at night.She doesn’t have enough time to do the housework,so my dad often helps her and he likes it.My dad works in a bank.He arrives home at about 4 p.m.,so he can do a lot of things at home.

Every evening Dad cooks dinner.My brother and I help him.After dinner Dad does the dishes and I help him dry them.Then we take a shower and Dad reads us short stories.

In the morning,Mom makes breakfast.Tom and I make our beds.Then Dad takes us to school by car.

On Saturday,we clean the house.I clean the furniture(家具)and Dad sweeps the floor.Tom takes the rubbish out and waters the plants.Dad likes cleaning the windows but he hates ironing(熨).He never does it.My grandma comes to us twice a week and she irons our clothes.

On Sunday,we wash the car together and Dad often takes us to play in the park and eat in our favorite restaurant.

根据材料内容判断正(T)误(F)。

()66.Lilly is four years older than Tom.

()67.Lilly’s mom never works at night.

()68.Lilly and her brother go to school by car.

()69.Lilly’s brother is so little that he can’t do any housework.

()70.Lilly’s father doesn’t like ironing,but he likes cleaning the windows.

E

On Thursday a new boy came into the classroom.He didn’t have any uniform on.Just trousers,a jacket and a shirt.Tom could see that the boy wasn’t quite comfortable.He had a plastic(塑料的)bag with exercise books,pens,pencils,rulers and erasers in it.The boy stood at the blackboard.Miss Fair talked to the boy,and then she said,“Boys and girls,this is Peter Rivers.He is your new classmate.Peter is your age.I hope you’ll get on well with each other.Peter will spend a lot of time together with you,and outdoors too.”Miss Fair asked Peter to sit next to Tom at the desk near the window.

The students had math after that and Tom could see that Peter was not bad at it.He counted(数数)well.It was not diffi cult for him at all.Then Miss Fair said,“It is half past twelve.It’s time to have lunch.”Peter joined Tom and went to wash his hands.Then the boys sat down on the fl oor and started to open their lunch bags.Tom opened his bag and put his hand in it.He took out an old brown apple,some old cheese and some bits of fi sh from dinner.“Oh,no!”cried Tom.“This is rubbish.I have the wrong bag.I took the rubbish bag and left my lunch bag at home.I have only rubbish for lunch today.”The other children laughed and laughed.Then Peter said,“I have two eggs.Why don’t you have one?I don’t need two.And would you like some bread?”Tom smiled,“Thanks.Now I’ll always look in my lunch bag before I bring it to school.”

根据材料内容选择最佳答案。

()71.How many kinds of things did Peter have in his plastic bag?

A.Three B.Four C.Five D.Six

()72.Which of the following is TRUE about Peter?

A.He wore a coat and a shirt to school.

B.He had lunch in the school dining hall.

C.He was disabled and couldn’t play outdoors.

D.He had no trouble counting in the math class.

()73.How did Tom feel when he saw what was in his lunch bag?

A.Bored B.Afraid C.Excited D.Upset

()74.What would Tom probably have for lunch?

A.Bread and an apple B.Cheese and an apple

C.Bread and an egg D.Cheese and an egg

()75.What is the passage mainly about?

A.Tom’s favorite teacher B.Tom’s new classmate

C.Tom’s math class D.Tom’s lunch

F

When a person is hurt or suddenly(突然)becomes ill,people give him immediate(立即的)care.We call it fi rst aid.(76)______Immediate action is necessary when someone loses lots of blood or when breathing stopped for a short time.

Everyone should know something about how to care for a person with a sudden illness.Even a small injury(损伤)can be very dangerous.(77)______

When first aiders face a sudden situation,they must be able to keep calm(镇静的)and organize other people to help.He or she must know how to control blood and take care of injuries.(78)______

In our country,hundreds of people die in traffic accidents every year because most people don’t have first aid information.(79)______We may face a sudden situation anywhere.One day somebody from our family may get hurt or suddenly become ill.(80)______

根据材料内容将方框中A—E五个句子填入文中空缺处,使短文内容完整、正确。

A.If more people know about fi rst aid,more lives could be saved.

B.If we don’t want to be helpless in such a situation,we have to know fi rst aid.

C.When there is a sudden situation,time is very important,so fi rst aid plays a very important role.

D.Knowing how to move the injured without causing(引起)more injuries is also very important.

E.And it may result in death,so everyone should know something about fi rst aid.

五、词汇运用(每小题1分,共20分)

A)根据句意及所给首字母提示,补全句中所缺单词。

81.Leo has a t___.I advised him to see a dentist.

82.The bus stopped to let the p___ off.

83.People in the western countries often eat with k___ and forks.

84.The bag of rice weighs about 50 k___.

85.His daughter is a n___.Her job is to look after the sick.

B)根据句意,用括号内所给单词的适当形式填空。

86.We have to make a________(decide)about where to go on vacation

87.His________(foot)are too big.We don’t have the right size of shoes for him.

88.Parents should tell children the________(important)of doing the housework.

89.Flora has a________(stomach),so she doesn’t want to eat anything.

90.All of us are surprised at the________(die)of the man because he is too young.

91.It was a good________(feel)to be arriving home again.

92.Who’s the________(own)of this house?

93.Careful!There’s_________(break)glass on the fl oor.

94.I wanted to thank them for all their________(kind).

95.She explained(解释)the whole idea again,but I still didn’t_____(understand).

C)根据句意及所给汉语提示,写出句中所缺单词。

96.There was a(n)______(通知)on the board saying the class had been cancelled(取消).

97.One of the boys was pushing the other along in a little box on_____(轮子).

98.We should care for the________(有残疾的)people.

99.Lisa met with many________(困难)when traveling.

100.I was tired so my friend________(扛)my heavy bag for me.

参考答案:

一、1---5DCADB 6---10 BBCCC

11---15 CCBCB 16---20 BAAAA

二、21---25 EBFGD

26.When should we do that

27.What should I do fi rst

28.Does he need any help

29.What do I need to do

30.What’s it

三、31---35 BCACD 36---40 ABDCD

41---45 DBCAC 46---50 ACADB

四、51---55 AADDB 56---60 BACDD 61---65 ADBBA