一 : 天津暑假作业答案

参考答案

一、1 C 2 A 3C 4 A 5D 6 B 7 A 8 B 9 B 10B 11D 12D 13A 14D 15B

二、16．（1）①漫画中的这位同学，看到水开了依然喊妈妈，是生活不能自理，缺乏自立能力的表现。②自立能力和精神不是天生俱有的，需要我们在生活中有意识地逐步培养。③她应该克服依赖心理，懂得管理和安排自己的生活。

（2）①把火关掉，把开水上到水瓶里。②树立自立意识，克服依赖心理。③立足于自身的生活、学习实际，从小事做起，在实践中培养自立能力和精神。

17．（1）儿子被饿死的根本原因是，他过分依赖父母，缺乏自立能力。

（2）我得到的启示是：从现在起，我们就要自觉储备自立的知识，锻炼自立能力，培养自立精神，否则就难以在未来的社会生活中自立。

18．自卑与自负都是自信的误区。自卑的人轻视自己，往往看不到自己的能力，即使可以做得很好，也不敢尝试。自负的人自以为了不起，往往过高地估计自己，看不起别人，自以为是。只有自信的人能够实事求是地看待自己，既能看到自己的优点，也能看到自己的缺点。

三、19．（1）追求表面上荣耀、光彩的心理不是真正的自尊心，而是虚荣心的表现，是对自尊的扭曲。

（2）适度的自尊有助于我们面对批评，改正错误；过度的自尊，则使我们过于敏感，作茧自缚，体验不到生活中的乐趣。（或：过于自尊、缺乏自信，容易产生忌妒心理。忌妒心理不能容忍别人超过自己，忌妒危害性大，会造成许多非常严重的后果。）

（3）自负的人，自以为了不起，往往过高估计自己，看不起别人，自以为是，自然与成功无缘。（或：自负可以带来一时的情绪高涨，但意气用事招致的挫折，会即刻使她不知所措和沮丧、颓废，从而走向自卑。或：自负的人永远也无法成功。）

二 : 江苏版暑假作业答案

Tom arrived at the bus station quite early for a Paris bus. The bus for Paris would not leave until five to twelve. He saw a lot of people waiting in the station. Some were standing in line, and others were walking around. There was a group of schoolgirls. Their teacher was trying to keep them in line. Tom looked around, but there was no place for him to sit.

He walked into the station cafe. He looked up at the clock there. It was only twenty to twelve. He found a seat and sat down before a large mirror on the wall. Just then, Mike, one of Tom's workmates came in and sat with Tom.

"What time is your bus?" asked Mike.

"There's plenty of time yet," answered Tom.

"Well, I'll get you some more tea then," said Mike.

They talked while drinking. Then Tom looked at the clock again. "Oh! It's going backward!" he cried. "A few minutes ago it was twenty to twelve and now it's half past eleven."

"You're looking at the clock in the mirror." said Mike. Tom was so sad. The next bus was not to leave for another hour. Since then Tom has never liked mirrors.

56. Tom went into the station cafe because_____.

A. Mike asked him to have a cup of tea

B. it was quite early and he could find a seat there

C. he didn't like to stay with the schoolgirls

D. he wanted to have a drink with his workmate there

57. What time was it in fact when Tom looked at the clock in the mirror?

A. Half past twelve. B. Twenty to twelve.

　C. Half past eleven. D. Half past one.

58. From the story we know that when we look at a clock in a mirror, we will find _____.

A. the time is right B. it's going slower

　C. it's going backward D. it's going faster

59. Which of the following is true？

A. Tom arrived in Paris on time.

　B. The next bus would leave in half an hour.

　C. After that Tom didn't like clocks any longer.

D. Tom looked at the clock in the mirror only once.

B

　　Pet owners are being encouraged to take their animals to work, a move scientists say can be good for better work, workplace morale (士气), and the well-being of animals.

　　A study found that 25% of Australian women would like to keep an office pet. Sue Chaseling of Pet-care Information Service said the practice of keeping office pets was good both for the people and the pets. "On the pets' side, they are not left on their own and won't feel lonely and unhappy," she said. A study of major US companies showed that 73% found office pets useful, while 27% experienced a drop in absence.

Xarni Riggs has two cats walking around her Global Hair Salon in Paddington. "My customers love them. They are their favorites," she said. "They are not troublesome. They know when to go and have a sleep in the sun."

Little black BJ has spent nearly all his two years "working" at Punch Gallery in Balmain. Owner Iain Powell said he had had cats at the gallery for 15 years. "BJ often lies in the shop window and people walking past knock on the glass lightly," he said.

Ms Chaseling said cats were popular in service industries because they could start a point of conversation. But she said owners had to make sure both their co-workers and the cats were comfortable.

60. The percentage of American companies that are for keeping office pets is ______.

　A. 73% B. 27% C. 25% D. 15%

61.We know from the text that "BJ" _____.

　A. works in the Global Hair Salon B. often greets the passers-by

　C. likes to sleep in the sun D. is a two-year-old cat

62.The best title for this text would be _____.

　A. Pets Help Interest Children B. Your Favorite Office Pets

　C. Pets Join the Work D. Busy Life for Pets

C

　　Bill Gates was born on October 28th, 1955. He and his two sisters grew up in Seattle. Their father, William H. Gates II, was a Seattle lawyer. Mary Gates, their late mother, was a school teacher.

　　Gates attended public elementary school before moving on to the private Lakeside School in North Seattle. It was at Lakeside that Gates began his career in personal computer soft- ware, programming computers at age 13.

　　In 1973, Gates entered Harvard University as a freshman, where he lived down the hall from Steve Ballmer, who is now Microsoft's president. While at Harvard, Gates developed a version (版本) of the programming language BASIC for the first microcomputer---the MITS Astair. In his junior year, Gates dropped out of Harvard to devote his energies full-time to Microsoft, a company he had started in 1975 with his boyhood friend Paul Allen. Guided by a belief that the personal computer would be a valuable tool on every office desk-top and in every home, they began developing software for personal computers.

　　Gates' foresight has led to the success of Microsoft and the software industry. He plays an important role in the technical development of new products. Much of his time is devoted to meeting with customers and staying in touch with Microsoft employees around the world through e-mail.

　　In the dozen years since Microsoft went public, Gates has donated more than $ 800 million to charities (慈善机构), including $ 200 million to the Gates Library Foundation to help libraries in North America make use of new technologies and the Information Age.

63. Where did Bill Gates begin his career in personal computer software?

　A. At public elementary school. B. At the private Lakeside School.

　C. At Harvard University. D. At Microsoft Company.

64. Why did he drop out of Harvard?

　A. To change school. B. To spend all his energies to Microsoft.

　C. To find a full-time job. D. To earn money.

65. How does Gates spend much of his time?

　A. Meeting with people.

　B. Travelling around the world.

　C. E-mailing some friends.

　D. Meeting with customers and e-mailing Microsoft employees.

66. What does the underlined word "donated" in the last paragraph mean?

　A. gave. B. earned. C. made. D. received.

D

　　What are you doing right now? Yes, you are reading this page. That also means you're moving your eyes. You're thinking. You're breathing. You're listening. Possibly you're shifting(变换) positions. You're also feeling things---this book, your chair, emotions. What lets you do all these things at the same time? Your brain.

　　Your brain is the control center of your body and mind. Without your brain you can't do anything. Your brain has more than 100 billion nerve(神经) cells. Each nerve cell makes from 1,000 to 10,000 connections with other nerve cells. The nerve cells send impulses back and forth in your brain and to and from every part of your body. After you reach the age of 20, though, your brain cells start to die. This is common. However, if you suffer an illness, or injury, even more nerve cells die in your brain. When a nerve cell dies, the thousands of connections it made with other nerve cells are lost.

　　Until recently, scientists believed that the brain did not replace its dead cells. New studies, however, prove not. Scientists have found new nerve cells in a part of the brain called the hippocampus(海马区). The hippocampus helps the brain form memories from new experiences.

　　The discovery of these new nerve cells is not a cure for anything yet. It gives hope, however, of a cure for brain damage from such things as epilepsy(癫痫病), Lou Gehrig's disease, car accidents, and strokes. Someday scientists might be able to use the new cells to replace damaged brain cells. Such a cure, however, may take about ten years to develop. So at the same time, use your head---protect it!

67. Nerve cells in the brain______.

A. send massages to every part of the body

B. make connections only to other cells in the brain

C. can cure Lou Gehrig's disease

D. are a person's memory

68. The last sentence of the passage suggests that people______.

A. should use their head by carefully thinking through situations

B. should be careful not to injure their brains

C. have a skull (头盖骨) that provides all the protection needed by the brain

D. would see a quick cure for brain disease

三 : 暑假总动员物理答案

一、填空题（每空1分，共20分）

1. 天平；量筒 2. 293；汽车 3. 大小；距离 4. 扩散；热传递 5. 不变；增大

6. 0.55；1.1×104 7. 信息；3.0×108 8. 变大；熄灭 9. 40；600 10. 熔断；金属外壳

二、单项选择题（每小题3分，共24分）

题号
11
12
13
14
15
16
17
18

答案
B
B
C
D
A
C
C
A

三、多项选择题（每小题4分，共8分，有选对但选不全的得2分，凡有选错的得零分）

19．BD 20．AD

四、作图和实验探究题（20分）

21．如图所示（2分）

22．（1）相同（1分）；不相同（1分）（2）单位质量（1分）；吸收（1分）

23．（1）47.4（1分）；（2）30（1分），30（1分）；（3）1.1×103（1分）

24．相等（1分）； 同种（1分）； 电阻（1分）； 温度计的示数高低（1分）； 煤油（1分）

25．（1）a、如图(1分) b、如图(1分)

（2）7.5　(1分)

（3）改变待测电阻两端电压和通过的电流值，再测量几次（或移动滑片，再测量几次等意思相近即可）；减小误差(各1分)

五、问答题（每小题4分，共8分）

26．这是因为列车与人之间的空气流速加大，压强减小；而人背着列车的一侧空气流速较小，压强较大。因此人向着列车的一侧受到空气的压力较小，背着列车的一侧受到空气的压力较大，在这两个压力的共同作用下，人很容易被吸进铁道，应特别注意安全。

27．当油面升高，浮子位置升高，在杠杆作用下，变阻器阻值变小，电流表示数变大，把电流表表盘的刻度转换成油面高度或油箱内油的体积就可以知道油箱内的存油量。

六、计算题（20分）

28．解：（1）太阳能集热板面积S0=3×104m2时，年发电量E0=3×105 kw·h，学校每年消耗电能E=3×103kw·h，设需要安装太阳能集热板的面积为S，则

= …………………………………………………………………………………………（1分）

S= ×S0= ×3×104m2=3×103m2……………………………………………（1分）

（2）设水温升高为△t ，则

Q=C水m△t………………………………………………………………………………………（1分）

所以 △t = = =100C……………………………………（2分）

本文标题：暑假作业答案-天津暑假作业答案
本文地址： http://www.61k.com/1137688.html