1．带电粒子在电场中加速(或减速)

　　 当电荷量为、质量为m、初速度为的带电粒子经电压U加速后，速度变为，由动能定理得：。若，则有，这个关系式对任意静电场都是适用的。

　　 对于带电粒子在电场中的加速问题，应突出动能定理的应用。

　有时也会碰到带电粒子在电场中即加速又减速，甚至是互逆的过程，此时要注意运用匀变速直线运动的相关知识进行分析和求解。

《考试大纲》对此部分的说明：

①带电粒子在匀强电场中运动的计算，只限于带电粒子进入电场时速度平行或垂直于电场的情况

②洛仑兹力的计算只限于速度与磁感应强度垂直的情况

第二节：满分25分。要求根据所给情景，用英语写一篇100个单词左右的短文。

假定你是某英文报的小记者，最近你对大学生的就业观点及专家对此的看法进行了采访。请根据以下要点写一篇题为“Different Job Outlooks”的短文，词数100词左右。

学生观点：

1．大部分想找一份薪金丰厚的工作；

2．部分持观望态度，等待良机；

3．少数想自己创业。

专家观点：不应坐等，要尽快找份工作，理由是：

　1．积累经验；

2．挣钱养活自己；

3．明年就业形势或许更严峻。

2008-2009 学年第二学期高二年级期末考试答题卡 英语

1______　 21_____　 36_____　 56_____　 76_____

2______　 22_____　 37_____　 57_____　 77_____

3______　 23_____　 38_____　 58_____　 78_____

4______　 24_____　 39_____　 59_____　 79_____

5______　 25_____　 40_____　 60_____　 80_____

6______　 26_____　 41_____　 61_____　 81_____

7______　 27_____　 42_____　 62_____　 82_____

8______　 28_____　 43_____　 63_____　 83_____

9______　 29_____　 44_____　 64_____　 84_____

10_____　 30_____　 45_____　 65_____　 85_____

11_____　 31_____　 46_____　 66_____

12_____　 32_____　 47_____ 　67_____

13_____　 33_____　 48_____　 68_____

14_____　 34_____　 49_____　 67_____

15_____　 35_____　 50_____　 70_____

16_____　　　　　 51_____　 71_____

17_____　　　　　 52_____　 72_____

18_____　　　　　 53_____　 73_____

19_____　　　　　 54_____　 74_____

20_____　　　　　 55_____　 75_____

假定你是某英文报的小记者，最近你对大学生的就业观点及专家对此的看法进行了采访。请根据以下要点写一篇题为“Different Job Outlooks”的短文，词数100词左右。

学生观点：

1．大部分想找一份薪金丰厚的工作；

2．部分持观望态度，等待良机；

3．少数想自己创业。

专家观点：不应坐等，要尽快找份工作，理由是：

　1．积累经验；

2．挣钱养活自己；

3．明年就业形势或许更严峻。

Different Job Outlooks

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第二节 完型填空(共20小题，每小题1.5分，满分30分)As the train approached the seaside town where I was going to spend my holidays, I went into the corridor to __36__ my legs. I stayed there a short while, breathing in the fresh sea air and __37__ a few words with one of the passengers, whom I had met earlier on the __38__.

When I turned to go back to __39__, I happened to glance into the compartment (车厢) next to mine. Sitting there was a man who many years before had been my neighbor. He was a great __40__, I remembered; it used to take hours to __41__ him once he began a conversation. I was not at all __42__ when he went to live in another part of London. We had not met since then, __43__ did I wish to meet him now, when __44__ was about to begin.

Luckily at that moment he was __45__ busy talking to the man opposite him to catch sight of me. I slipped back into my compartment, took down my two suitcases and carried them to the far end of the corridor so as to be ready to __46__ the train as soon as it stopped． The moment the train came to a halt (停止), I called a porter, who in no time at all had carried my luggage out of the station and __47__ me a taxi. As I drove towards my small hotel on the outskirts of the town, I breathed a deep sigh of relief at my__48__. There was little chance that I should __49__ my boring ex-neighbor again.

When I reached the hotel, I went __50__ to my room and rested there until it was time for dinner. Then I went down to the dining room and __51__ a drink. I had barely raised the glass to my lips __52__ an all too familiar voice greeted me. I had not escaped from the tiresome neighbor __53__! He grasped me warmly by the hand and insisted that we __54__ a table in the dinning-room. “This is a pleasant __55__,” he said． “I never expected to see you again after all these years.”

36．A．reach 　 B．extend 　 C．stretch D．loosen

37．A．exchanging 　 B．changing 　　 C．talking through D．talking about

38．A．fruit stand B．department store 　　 C．bus stop D．station platform

39．A．the station B．my seat C．the waiting room 　　 D．the office

40．A．talker 　 B．poet　 　 C．speaker D．hero

41．A．get rid of 　 B．take care of　 　 C．get away from 　 D．pay attention to

42．A．happy 　 B．afraid 　 C．sorry 　 D．content

43．A．so 　 B．no 　 C．not D．nor

44．A．holiday B．school day 　 C．work day 　　 D．conversation

45．A．very B．too　 C．so　 D．much　

46．A．get on 　 B．stay on　 C．catch 　 D．get off

47．A．found 　 B．gave 　　 C．offered　 D．stopped

48．A．good luck 　 B．nice choice C．narrow escape 　 D．bad fortune

49．A．keep in touch with B． run into　　　 C．knock down D． catch up with

50．A．carelessly 　 B．aimlessly 　 C．idly D．straight

51．A．ordered B．requested　　 C．fetched D．asked

52．A．while 　 B．before 　 C．when 　　 D．after

53．A．above all 　 B．after all 　 C．first of all 　　 D．in all

54．A．spare 　 B．rent 　　 C．reserve D．share

55．A．surprise 　　 B．interview 　 C．appointment　 D．party