导读: 厦门六中2014-2015初二下学期期中考试 厦门六中2014-2015学年下学期初二期中考试 英语试卷 (二)基础知识与运用(每小题1分,共20分) V...
厦门六中2014-2015初二下学期期中考试
厦门六中2014-2015学年下学期初二期中考试
英语试卷
(二)基础知识与运用(每小题1分,共20分)
V. 选择填空
16. Of all the stories, I like _______ interesting story about ________ emperor.
A. an; an B. the ; an C. an; the
17. —I went to the classroom just now. But nobody was there.
—Maybe they _______ a P.E. lesson on the play ground at that time.
A. Have B. had C. were having
18. I can‟t go out on schooldays because my parents don‟t ________ me to do that.
A. notice B. offer C. allow
19. As soon as I got off the bus, I realized I ________ my things on the bus.
A. left B. forgot C. missed
20. Amy _________ her sister. They are always trying their best to do everything well.
A. takes after B. looks like C. looks after
21. —Wow, you have so much home work today1
—Yes. I guess I won‟t finish it ________ I stay up late tonight.
A. when B. unless C. so
22. —Dad, look! I drew all the pictures by myself? —___________ beautiful pictures!
A. What B. What a C. How
23. Tom, please speak louder ___________ I stay up late tonight.
A. although B. as long as C. so that
24. —What can I do with so many old books? —You can ________ to the poor kids.
A. give them up B. give them away C. give them back
25. Sarah ________ a bike to work, but now she often drives.
A. used to ride B. is used to riding C. is used to ride
26. —Will your brother go for a picnic next Saturday?
—If I don‟t go, _________.
A. so does he B. neither does he C. neither will he
27. —Mom, could I watch TV for just a few minutes?
—________. But you have to finish home work first.
VI. 完形填空
When you get into a new environment, you must have a strong wish to fit in(适应). Fitting in means making more friends, making a _____28____ to others and getting more chances to live a happier life. Here is some advice that can help you.
First, have confidence(信心). Everyone is____29_____ and there is only one person like you in this world. Spend some time thinking about what you are ___30____ in. If so, you will be able to build up confidence step by step. You won't have much difficulty fitting in.
Second, be kind to everyone. Kindness is the bridge to your own people notice your kindness, they will return it one day. Always give more than you get, and think more
person who cares for others is popular everywhere.
厦门市2014—2015学年八年级(下)数学期中模拟试卷
厦门市2014—2015学年八年级(下)数学期中模拟试卷
一、选择题:
1.下列各式中,二次根式有( ) (-3)A. 2个 311(a-b)-a-18. 23 B. 3个 C. 4个 D. 5个
216)=25252.以下各式中计算正确的是( ) A. -(6)2=-6 B.3=-3 C.
3.下列说法中错误的是( )
A.在△ABC中,若∠A=∠C-∠B,则△ABC是直角三角形;
B.在△ABC中,若三边长a:b:c=1::2,则△ABC是直角三角形
C.在△ABC中,若∠A、∠B、∠C的度数比是7:3:4,则△ABC是直角三角形;
D.在△ABC中,若三边长a:b:c=2:3:5,则△ABC是直角三角形
4.下列各命题的逆命题成立的是( )
A.全等三角形的对应角相等
B.若a=b,则a2=b2
C.如果两个实数都是正数,那么它们的积是正数。
D.线段垂直平分线上的点到这条线段两个端点的距离相等。
5.若a+a=
02(-16)=±16 D. -(
) A. 2a-1 B. 1-2a C. -1 D. 1
6.矩形具有而菱形不具有的性质是( )
A.两组对边分别平行;B.对角线相等;C.对角线互相平分;D.两组对角分别相等
7.
计算的结果是( )
A D
B.
D. 第10题图
第
9题图 8.已知a
<0(
)
A.-
B.
C.-
D.9.如图,已知菱形ABCD的对角线AC.BD的长分别为6cm、8cm,AE⊥BC于点E,则AE的长是( ) A. 53cm B.2cm C.18cm 5D. 24cm 5
10.如图,在矩形ABCD中,AB=2,BC=4,对角线AC的垂直平分线分别交AD、AC于点E、O,连接CE,则
CE的长为( )
A. 3 B. 3.5 C. 2.5 D. 2.8
二、填空题:
11.代数式2x有意义的条件是_________;
2014-2015学年(下)厦门市八年级期末质量监控
2014-2015学年(下)厦门市八年级期末质量监控
物 理 评 分 标 准
一、选择(32分)
1.A 2.C 3.C 4.A 5.B 6.D 7.D 8.C 9.B 10.C 11.B 12.B 13.A 14.C 15.D 16.C
二、填空(12分)
17.小于 等于 18.连通器 相平 19.不变 减小 20. = 3 21.温度 温度 22. 1 500 2 000
三、简答(4分)
答:相对于漩涡边沿,漩涡中心的水流速大,压强小,(1分)漩涡边沿以外水的流速小压强大。(1分)人若靠近漩涡边沿,漩涡对人会产生一个外大内小的压力差,(1分)从而将人压入漩涡内,造成危险。(1分)
四、作图(4分)略
五、实验探究(28分)
26. (4分)小于 分子存在间隙 热 分子扩散
27. (5分)(1)高度差 (2)在同一深度,液体朝各个方向的压强相等。
(3)3、4、5 ; 1、2、3 ; 5、6。
28.(4分) (1) b (2) 大 (3) 匀速直线运动 (4) C
29. (7分)(1)物体的重力 弹簧测力计 (2) G/nF (3) 0.3 0.375 80% (4) 高。
30. (8分)(1) ② ③; ② ⑤ 。 (2) 6.75 1 增大 无关
(3) 浸入液体密度的关系 (4) 0.8
六、计算(20分)
31. (6分)
s5 m(1)V= = =0.5 m/s -----------------------------------------------------------------------------------------(2分) t1 s
(2) W=Fs=106 N×5 m=5×106 J ----------------------------------------------------------------------------------(2分)
w5×106 J(3)P== =5×105 W -----------------------------------------------------------------------------------(2分) t10 s
32.(6分)
(1)F浮=G排=ρ水gV排=1.0×103 kg/m3×10 N/kg×22 m3=2.2×105 N -----------------------------------(2分)
(2)∵ 当坦克在水平地面上时,F压力=G坦克=m坦克g=22×103 kg×10 N/kg=2.2×105 N ------------(1分)
F压2.2×105 N ∴ P压= = =5.5×104 pa --------------------------------------------------------------------(1分) s4 m(3)∵最大速度:v=54 km/h=15 m/s -------------------------------------------------------------------------(1分) 又∵W= F牵s
WPtP420×103 w∴F牵== = ==2.8×104 N --------------------------------------------------------------(1分) ssv15 m/s
33. (8分)
(1)P压=ρ水gh=1.0×103 kg/m3×10 N/kg×5×10-2 m=500 pa -----------------------------------------------(2分)
(2)F标浮= G排=m排g=0.5 kg×10 N/kg=5 N ------------------------------------------------------------------(2分)
(3)∵航标灯对浮子的拉力为:F拉= F浮子-GA=1 N -------------------------------------------------------(1分)
∴F浮子=GB+ F拉=1.5 N -----------------------------------------------------------------------------------(1分) 又∵ F浮子=ρ水gV浮子排,
∴V浮子排= F浮子1.5 N= =1.5×10-4 m3 ----------------------------------------------(1分) 10kg/m×10 N/kgρ水g1.0×
∴V浮子= V浮子排=1.5×10-4 m3 ---------------------------------------------------------------------------(1分)