问题 单项选择题

变压器由于在低负荷期间负荷系数小于1。而在高峰负荷期间允许的过负荷及由于夏季欠负荷(其最大负荷低于变压器的额定容量)而在冬季允许的过负荷,两项过负荷之和()。

A、对强油循环风冷或水冷变压器是20%

B、对强油循环风冷或水冷变压器是25%

C、对油浸自冷和油浸风冷变压器是不超过其额定容量的30%

D、对油浸自冷和油浸风冷变压器是不超过其额定容量的35%

答案

参考答案:A

阅读理解

第二节阅读下面71-75题中几个人的相关信息,再根据A-F中对6种自行车的描述,为每个人选出符合他们要求的自行车。选项中有一项是多余选项。(共5分)

71. ______ Ruth will enter a key high school which is a few miles away from her home and she needs a bike. Since it’s not long before she has learned to ride a bike, she expects the bike to offer enough safety and to be easy to control. And being a pretty girl, she hopes the color of the bike is pleasant.

72. ______Gary has just got a job but he lives a bit far from his office. So he needs to get a portable bike to meet his situation. The bike must be easy to fold and carry.

73. ______ Felix is a young gentleman who is falling in love with a pretty girl recently. They plan to buy a fashionable bike which is fit for 2 persons to ride. On the bike both of them can enjoy wonderful feelings along the West Lake.

74. ______ Teddy’s growing up day by day. The grandparents want to give the young kid a special birthday gift—a child’s bike which is safe enough and light to carry.

75. ______Hugh lives in a mountain village but attends school in town. It’s necessary for him to buy a bike which is strong enough. Because his parents are not very well-off, what he really cares about is the price, not the look of the bike.

A.This bike is convenient to fold in different sizes. It’s fun and comfortable while you are riding. You can go to a park on a sunny weekend and rush to work on the bike.

B.You’ll burn up the streets on this boys’ bike. With a low price $69.99, it is a yellowy and fashionable bike with strong system. Even if you are a greenhand, it can ensure your safety.

C.The Angel(天使)is 12 inches. Many girls will love the colorful fairy girls(仙女). It has added safety and a specially-made seat. This bike is strong and safe for beginners because it offers extra training wheels to keep balance.

D.Being fit for lovers to ride at the same time, this kind of twin bike isenjoying great popularity. It’s a new way to relax and a fashion to follow. Not only lovers, father and son, mother and daughter, brothers, sisters, classmates all can have a new experience.

E. This first-class kid bike has colorful cartoon pictures on it. Parents will like the bike’s low center of gravity. Three wheels can prevent the bike from tipping(翻到).

Security deposit (保证金): $3,000

Call (650) 892-9823 for an appointment.

F. The second-hand 26-inch, 21-speed bike is specially made to ride on the bad roads in the mountains, across the desert, and through the urban jungles (丛林). Though the bike is a little old and ugly, the quality is good enough.

改错题

探究题:美国梦与中国梦(10分)

材料一 200多年前,美国建国先祖带领人民脱离了奴役,获得了主宰自己命运的自由……在建国精神的鼓舞下,美国战胜了历次战争以及萧条的考验,这一精神也使得美国每每在陷入最绝望的谷底时,都能伸开双臂去迎接更多的希望。而每个人都有着追求个人幸福权利的这一信念,也就是所谓的“美国梦”。

——2012年11月6日美国总统奥巴马胜选演讲

(1)材料一中“美国建国先祖带领人民脱离了奴役”的事件是什么?美国是如何战胜二十世纪二三十年代的“萧条的考验”的?(2分)

材料二 到了21世纪的信息时代,苹果之父史蒂夫·乔布斯、微软的比尔·盖茨、雅虎的杨致远以及GOOGLE的三个创立者变成了“美国梦”的新偶像。

——­­­­­­百度百科

(2) 材料二中的这几个人成为“新偶像” 与第三次科技革命有什么联系?美国是当今世界最强国,你认为最主要的原因是什么?(2分)

材料三  1933年的新年,上海《东方杂志》推出了一个“新年的梦想”特刊,国内各界人士同做一场“中国梦”。在各色的梦里,20多位教授、作家梦想未来的中国是一个没有阶级压迫的平等社会;有人梦想整个民族实现了空前的团结,国共两党共商抗日救国大计;……

——《一个时代的“新年梦想”》

(3)据所学知识判断,材料三中提到的两个梦想最终实现了没有?请说明理由。(3分)

材料四 我以为实现中 * * 的伟大复兴就是中 * * 近代最伟大的中国梦,因为这个梦想,它是凝聚和寄托了几代中国人的一种夙愿,它体现了中 * * 和中国人民的整体利益,它是每一个中华儿女的一种共同的期盼。

——2012年11月29日习 * * 在参观《复兴之路》展览上的重要讲话

(4)根据以上材料说说 “美国梦”与“中国梦”的共同点是什么?作为一名新时代的中学生,你拥有怎样的“中国梦”?(3分)