5、下面有关磁场中某点的电磁感应强度的方向的说法正确的是
A.磁感应强度的方向就是指该点的磁场方向
B.磁感应强度的方向就是通过该点的磁感线的切线方向
C.磁感应强度的方向就是通电导体在该点的受力方向
D.磁感应强度的方向就是小磁针南极在该点的受力方向
4、在赤道上空,有一条沿东西方向水平架设的导线,当导线中的自由电子自东向西沿导线做定向移动时,导线受到的地磁场的作用力的方向为
A.向北 B.向南 C.向上 D.向下
3、关于磁感应强度,下列说法中正确的是
A.由B=可知,B与F成正比,与IL成反比
B.一小段通电导体在某处不受磁场力,此处也可能有磁场
C.通电导线在磁场中受力越大,说明磁场越强
D.磁感应强度的方向就是该处电流受力方向
2、下面几种从本质上解释磁场产生原因的话中,正确的是:
A.磁极产生磁场 B.电荷产生磁场
C.运动电荷产生磁场 D.永久磁体产生磁场
1、图1中哪一个图是正确的:
1.[解析]A. 考查介词短语意思辨析。in honour of “是为了纪念----”的意思, 及后面的短语作后置定语,相当于定语从句。in favour of赞成,支持;in line with跟----一致;in place of 代替。依据句子意思选A. 2.[解析]A. 考查end用作名词时的用法。 其中come to an end意思是“结束”,常用作谓语动词,而bring and end to sth.“使----结束”,常用作及物动词。依据句子意思和语言用法选A。 3.[解析]B. 考查分数的表达方法。 4.[解析]D. 考查关系代词的选择。关系代词代替的是先行词在定语从句中作定语。 5.[解析]B 考查非限制性定语从句 as,which 的辨析。As正如,正像;这一点的意思,用于句首和句中;which仅用于句中,代替前面句子的整体和部分内容。 6.[解析]D 考查定语从句中关系代词的用法。本题要防止误选B 7.[解析]B 考查的是非限制性从句,防止误选C. 8[解析]B 考查定语从句关系词的选择。弄清楚先行词与spare的关系。 9.[解析]A 考查强调句型中的定语从句的用法。分析句子结构,防止误选B 10.[解析]C 考查名词辨析。thing事情,东西;event事件,事变,活动,竞赛;affair事务,事件;matter问题,物质,口语为日常较为普通的个人事件。 11.[解析]D 考查主谓语的一致性原则和省略句式。依据one-forth (of the computers)可知。 12.[解析]B 考查there be 结构的非谓语形式。其中there与be作wish的宾语,并且是主谓结构,因此选B 13.[解析]A 考查倒装句和so,such的辨析。当never,little hardly,scarely等否定意义的副词置于句首句子要倒装。So+adj/av+n.而such+a(n)+adj.+n 14.[解析]A 考查形容词的词义辨析。依据题意分享的应该是相同的目标和兴趣。 15.[解析]A 考查句子结构分析。strive for sth.“力求达到,力求获得”,选项应作a positive and powerful emotion的同位语,表泛指概念。 16.[解析]C 考查advise 同位语从句中谓语的形式。advice同位语从句应用虚拟语气。 18.[解析]A 考查形容词辨析和搭配。be similar to 和---相似;be equal to 有“胜任之意”; be familiar to 对----熟悉;be content to 满意的,满足的。依据句子意思选B 19.[解析]B 考查名词辨析和as/which 的辨析。依据前面的空in reward for 为固定搭配。意思是“作为报答”;award 奖品;medal 奖牌,奖章,纪念章;prize奖品,主要是在比赛中获得。 20.[解析]B 考查it 的用法。 21.[解析]B 考查it的用法。注意区分代词。 22.[解析]D 考查连词连接前后两个句子表示“一------就”的用法,类似用法的词有 23.[解析]C 考查定语从句中关系词的选择。 先行词为the one(the town),定语从句work后少地点状语。 24.[解析]C 考查介词与关系代词的搭配。依据句意他最后买了几本汤姆的书,这是其中的一本可知。 25.[解析]B 考查名词和动词的搭配。Win 与 victory 搭配恰当。 26.[解析]D.考查词的用法。awake adj.醒着的 (作表语)。Awake, awaken, wake, waken都可以作及物和不及物动词用, 但是awake多用作不及物动词, 其中wake最常用 27.[解析] A. 考查同一字母开头的动词变析。 despair of (=be in despair) 对.......失望 designate指明, 指出, despise 轻视, 藐视。 28.解析]D. 考查名词词义辨析。determination意为“决心”, 后常接动词不定式作定语 29.[解析] D. 考查名词后缀意思辨析。 expedition 远征, 探险; excursion 短途旅行, 游览; execution 实施, 执行; extraction 提取。 30.[解析]B. 考查形容词词义辨析。 disastrous 灾难性的。 31.[解析] B. 考查动词词义辨析。本题句意是警方拒绝透露他们正在调查的线索。 disclose透露, 使显露: exhibit 展览, 展出, 显示, expose 暴露,discern 认出, 发现, 辨别,识别。B 吻合句意。 32.[解析] D. 本题考查形容词短语意思辨析。.(be) contrary to与.......相反, 违反 (作表语) contrary to也可以作状语;作定语。 33.[解析] C.考查形容词词义辨析。本题意思是这位商店售货员对顾客很坦率。如果货物质量不好, 他就把情况告诉顾客。而minor次要的,不重要的;humble谦卑的,地位低下的;inferior劣质的,地位差的符合句意;awkward难使用的,笨拙的。 34.[解析]A. 考查动词词义辨析。 blame sb./sth. for ... 因.......埋怨、责怪 .....;condemn 谴责、判刑。accuse sb. of控告某人犯有.......;charge sb. with控告某人犯有......。 35.[解析] A. 考查名词词义辨析。bands.(颜色与其余部分不同的) 条纹。Mark痕迹, 斑点; 记号, 标记。本题是讲岩石上色彩不同的“条纹”, 故用bands. rail (轨道) ,shape (形状) ,均不合题意。 36.[解析] D. 考查形容词词义辨析。 available可利用的; 可以找到的。 37.[解析]A.考查动词短语的辨析。 stick out 坚持。Stand out 显著,突出;keep down压制;hold up支撑,阻滞。 38.[解析] C.考查同一字母表中词义辨析。 attain (=succeed in doing or getting) 达到 (目的等) ,取得 (成就等);accomplish (顺利) 完成。assume假定, 假设, 承担。assemble集合; 装配。 39.[解析] D. 考查动词词义辨析。alternate vt./vi. 轮流,交替发生或出现;shift般动,移动(vt.);转移到,迁移(vi.);改变;exchange交换;exchange... for ... 用.......换......;alter(部分)修改。 40.[解析] C. 考查被动中的动词词义辨析。crush压坏,压碎;弄皱;辗散; splash溅,泼;split(中间)裂开;crash(向下)猛跌;(飞机)失事。 41.[解析]C. 考查动词词义辨析和短语结构。scatter撒;abandon放弃,抛弃。desert遗弃(而离开);vanish消亡,灭亡。本题句意是将小偷在搜寻钱时的情景,所以应选scattered(撒)。 42.[解析] B. 考查名词的用法。electric appliances电器用具,facilities公用设备。equipment设备,装备,是集合名词,指“设备”的总称,只有复数形式。instrument仪器。 43.[解析]C. 考查名词词义辨析。reflection此处意为“映在水中的倒影”,而不是“影子”或“阴影”,故不能用shadow。其他选择均不合题意。 44.[解析]B.考查短语意思辨析。behind schedule(=late, behind time)晚点;behind the times过时,跟不上时代,落后;ahead of time提前;in no time(=soon, quickly)立即,马上。 45.[解析]A. 考查动词词义辨析和短语的构成。 hamper阻碍;本题意思是他们两人都认为他不怎么样并极力阻碍他工作。think highly of... 对...评价很高,认为......很好。 46.[解析] C. 考查动词词义辨析。spoil “使...... 扫兴,搞糟”; hurt伤害,damage 损坏,harm危害,均不合题意。 47.[解析] D.考查动词短语的构成。 put sb. under(great) stress使某人处境(非常)紧张,使某人受(很大)压力。 48.[解析] C考查形容词词义辨析。obscure模糊难懂得;drastic激烈的,严厉的;dull单调的;distinct清楚的,明显的;截然不同的(from)。 本题译文:她提到她的朋友----诗人时所说的话是令人感兴趣,但没有说清楚,以致没有人为此感激 49.[解析]C.考查高频词短语组成broke off.突然中断; break out爆发break away from摆脱,从......退出。break up打碎,分解。 50.[解析] A. 考查动词词义辨析。 burst into tears放声大哭; burst into laughing(捧腹大笑)
1. While in London, we paid a vist to the hospital founded______ Florence Nightingale. A. in honour of B. in favour of C. in line with D. in place of 2. The Un is to____an end to the dispute between the two countries. I’m sure the issure will_____ an end soon.
A. bring; come to B. come; put C. come; bring D. put; come to 3. My daughter told me that_____ of her homework had been finished. A .two-fifth B. two-fifths C. second-fifth D. second-five 4. The river______ are covered with trees is polluted. A. of which the banks B. whose banks C. the banks of which D.A,B,C are right 5. The weather turned out to be very good,_____was more than we could expect. A. what B.which C. as D. it 6. Because of my grandma’s poor memory, she has forgotten all____ you told her. A. which B. what C. as D./ 7. London,______ last year, is a nice old city. A. that I visited B.which I visited C. I visited D. where I visited 8. Our teacher makes good use of any time______ he can spare. A. which B. that C. when D. in which 9. It was in the lab___was taken charge of by our teacher____ they did the experiment. A. which; that B. where; which C. which; where D. that;where 10. I can’t say which wine is best, it’s a(n)___ of personal taste. A.thing B. event C.affair D. matter 11. Our school had about 20 notebook computers but only one-forth_____used regularly. Now we have 50 working all day long. A. is B. are C. was D.were 12. We wish______ no war and no poverty in the world. A. there is B. there being C. there to be D. there be 13. Never before in our country_____. A. has such a thing happened B. such a thing has happened C. has so a thing has happened D. so a thing has happened 14. We often share the_____ goals and interests. A. same B. common C. positive D.different 15. He is positive and powerful emotion,_____ for which we all strive. A. one B. the one C. very one D. only one 16. I followed his advice that I____mys tudy plan. A. changed B. would change C. change D. had changed 18. She doubted whether he would be ______ to the task, so he was not admitted. A. similar B. equal C.familiar D. content 19. Tom got nothing in______ for her kindness,_____ made him very sad. A.award; as B. reward; which C. prize; which D. medals; as 20. Does_____matter if an engineer is a man or a woman? A. that B.it C. this D. what 22. Everyone stood up______ the hero came into the lecture hall. A. while B. instant C. every time D.immediately 23. ---- Is that the small town you often talk about? ----- Yes, just the one______ I used to work for years. A. that B. which C. where D. what 24. He finally bought several books by Tom, _____ is one. A. which of them B. which of whose C. of which this D.any of them 25. Dr.King won the Nobel Peace Prize in 1964 for his achievement and_____. A. honor B. victory C. courage D. failure 26. As soon as the children were _____, their mother got them out of bed and into the bathroom. A. woke B. waken C. wake D. awake 27. Jim was so badly burnt that at first they began to _____ of his life. A. despair B. designate C. disappoint D. despise 28. The government's strong action demonstrated its _____ to crush the rebellion. A. energy B. resistance C. courage D. determination 29. New mineral resources may be discovered during the forthcoming Antarctic _____. A. excursion B. execution C. extraction D. expedition 30. Driving a car without insurance can have _____ consequences. A. uncertain B. disastrous C. potential D. unworthy 31. The police refused to _____ the clues they were working on. A. exhibit B. disclose C. expose D. discern 32. What you have done is _____ the doctor's orders. A. attached to B. resistant to C. responsible to D. contrary to 33. The shop-assistant was straight with his customers. If an article was of _____ quality, he'd tell them so. A. minor B. humble C. inferior D. awkward 34. The continuous rain was _____ for the exceptional poor harvest A. blamed B. condemned C. accused D. charged 35. The rocks are very big with _____ of colors on them. A. bands B. marks C. rails D. shapes 36. There were no tickets _____ for Friday's performance. A. preferable B. possible C. considerable D. available 37.. Despite all the evidence to the contrary, the witness _____ that his story was true. A. stuck out B. stood out C. kept down D. held up 38. In a typhoon, winds _____ a speed greater than 120 kilometers per hour. A. assume B. accomplish C. attain D. assemble 39. Professor Smith and Professor Brown will _____ in giving the class lectures. A. exchange B. alter C. shift D. alternate 40. Pack the cake in a strong box, or it might get _____ in the post. A. splashed B. spilt C. crushed D. crashed 41.. The thief _____ the papers all over the room while he was ______. A. abandoned ;searched B. vanished; searched for C. scattered ; searching D. deserted;searching for 42. Today, housework has been made much easier by electrical _____. A. facilities B. appliances C. instruments D. equipment 43.. The _____ of the trees in the water was very clear. A. mirror B. sight C. reflection D. shadow 44. They have been waiting for many hours to see the singer, but the airplane must have been _____. A. behind the times B. behind schedule C. ahead of time D. in no time 45. Neither of them thought______ of him and they both tried to _____ him in his work. A. hamper ;highly B. support ;ill C. assist ;/ D. encourage;high 46. Her display of bad temper completely _____ the party. A. harmed B. damaged C. spoilt D. hurt 47. We forgave his bad temper because we knew that his son's illness had put him under great _____. A. emotion B. excitement C. crisis D. stress 48.. The reference she made to her friend, the poet, was interesting but too _____ for anyone to appreciate. A. drastic B. dull C. obscure D. distinct。 49. He _____ his engagement just before the wedding. A. broke out B. broke away from C. broke off D. broke up 50. When she heard from the hospital that her father had died, she _____ into tears. A. burst B. went C. exploded D. fell
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