25.-Tomorrow will be Father's Day. What will you do for your father?
- I will say “I love you, Daddy” as soon as he _______ up.
A. will wake B. is waking C. wakes
24.-I’m sorry to keep you waiting for me so long.
- ________.
A. I don’t think so B. Don’t say so C. It doesn’t matter
23.The ticket is on the floor, please ________.
A. pick up it B. it pick up C. pick it up
22. The little girl was too frightened ________ a word.
A. to say B. to talk C. to tell
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,并在答题卡上将该项涂黑。
21.-Must I get up early tomorrow?
-No, ________.
A. you mustn’t B. I don’t think you have to C. you can’t
第三节(共10小题;每小题1.5分,满分15分)
听下面3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。每段对话或独白读两遍。
听下面一段材料,回答第11至12题。
11. How will Tom spend May Day?
A. Go to see his parents. B.Visit the Great wall with his parents.
C. Help his parents with the work.
12. Why will Kate stay at home on May Day?
A. She has to look after her parents.
B. She has to help her friend learn English.
C. She has to study math at home.
听下面一段材料,回答第13至15题。
13. What’s the matter with Jim?
A. He’s got a cold. B. His head hurts. C. He’s got a fever.
14. How long has Jim been like this?
A. Since this morning. B. Since last night. C. .For long
15. What did Jim have for breakfast this morning?
A. Nothing. B. A little bread and milk. C. A little milk and an egg.
听下面一段材料,回答第16至20题。
16. The accident happened _____.
A. in the street B. on the highway C. near the hospital
17. _____called 120 at once.
A. Bob B. Bob’s friend C. The police officer
18. Bob ___________ when he was found by someone passing by.
A. was fine B. was lying on the roadside C. was driving fast
19. Bob will have to stay in hospital for _____.
A. two or three days B. a week C. five days
20. _____ caused the accident
A. Bob’s car B. Bob’s driving
C. The bad weather and the crowded road
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三幅图中,选出一个与你所听到的内容相符的选项,并标在试卷的相应位置。每段对话读两遍。
1. What is John looking for?
2. How does Tom learn Chinese?
3. When is the boy’s birthday?
4. How will Mike go to Beijing?
5. What is Mr Brown’s telephone number?
第二节(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。每段对话读两遍。
6. What will the weather be like the day after tomorrow?
A. Windy. B. Cloudy. C. Sunny.
7. What did the man do in Harbin?
A. He went fishing. B. He went skating. C. He went swimming.
8. Who was ill yesterday?
A. The girl’s mother. B. The girl’s father. C. The girl’s brother.
9. What does the woman do?
A. A farmer. B. A doctor. C. A teacher.
10. What does the woman want to drink?
A. Black tea. B. White coffee. C. Black coffee.
做题时,请先将答案标在试卷上。听力内容结束后,你将有两分钟的时间将试卷上的答案转填到第9页的答题栏内。
48、下图甲是某小组同学“测量小灯泡的电功率”的实验电路图,已知小灯泡的额定电压为6V,正常工作时的电流约为0.3A.现有如下器材:电流表、电压表、开关各一个,规格分别为“100Ω 2A”“50Ω l.5A”的滑动变阻器各一个、导线若干、电源(电压为12V左右)一个。
(1)图乙已连接了部分电路,请用笔画线代替导线将电路连接完整。
(2)你认为该小组应选用规格为 的滑动变阻器
(3)该小组同学选用了合适的滑动变阻器后闭合开关,滑片P移到某一位置时记录了第1组数据:滑片P继续向右移动,当小灯泡正常发光时.电流表示数如丙图所示.请帮他们将电流表的示数记入表中空白处;当滑片P移到最右端时,小灯泡闪亮一下后熄灭,然后他们记录了第3组数据;从表中数据可知他们所用的电源电压为 V,小灯泡的额定功率为 W。
实验序号 |
电压表示数/v |
电流表示数/A |
小灯泡发光情况 |
l |
3 |
0.16 |
暗 |
2 |
6 |
|
正常发光 |
3 |
12 |
0 |
不发光 |
犍为县2009年初中毕业会考暨高中阶段招生适应性考试
47、某物理学习小组,针对同学中存在的有关斜面问题的一些疑惑,进行了实验探究和理论探究活动.
[实验探究]
将长度为l m的长木板的一端垫高,构成长度一定高度可调的斜面(如右图所示).用沿斜面向上的拉力F使重为10N的滑块沿斜面匀速向上运动。完成斜面机械效率测量.下表呈现的是部分实验数据:
实验次数 |
1 |
2 |
3 |
4 |
斜面高度h/m |
0.15 |
0.20 |
0.25 |
0.30 |
拉力F/N |
2.7 |
3.2 |
3.6 |
4.1 |
机械效率η |
0.56 |
0.63 |
0.69 |
0.73 |
(1)疑惑一:“斜面的机械效率越高越省力吗?”
请报据表中的实验数据,写出正确的结论。
(2)疑惑二,“斜面倾斜程度越大拉力越大,滑块受到的摩擦力也一定越大吗?”
请进一步分析表中实验数据,写出正确的结论:
简述理由:
[理论探究]
(3)疑惑三。“滑块受到的摩擦力是一个‘不可直接测量’量,能通过‘可测量’量求出摩擦力吗?”
请根据已有的知识推导:对于倾斜程度不同的斜面,在拉力F作用下(拉力方向沿斜面向上或向下)使重为G的滑块沿斜面匀速移动时,滑块受到的摩擦力f的数学表达式(斜面的长L和斜面的高h均为“可测量”量)
拉力F方向沿斜面向上时f=
拉力F方向沿斜面向上时f=
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