试题与答案

Passage 1

题型:多项选择题

题目:

Passage 1

答案:

参考答案:The style of Beijing Opera is an exaggerated form of singing, recitation, movements and makeup. For many traditional performances, no settings are needed besides a few simple props. The scenes are reflected by performers’ singing, acting, miming and dances. Because of this performing style, the themes of Beijing Opera are varied, including not only history, legends and fairy tales, but also famous ancient battles, as recounted in "Farewell to His Concubine".
In this drama, scenes of thousands upon thousands of horses and soldiers, and the atmosphere of clashes upon water and land are all vividly reflected. Besides dancing and the martial arts, music plays an important role in setting the tone of a performance. In the powerful and hurried music, the audience see the torrential waters of the Yangtze River, the numerous battle junks and flags and the flames and smoke of combat.

解析:[听力原文]
京剧的风格是对说唱、吟诵、乐曲及化妆加以夸张表现。对于许多传统表演,只需布置几样简单的道具就可以了,而场景则通过演员的唱、念、做、打来表现。基于这种表演形式,京剧的主题变化多样,不仅包括神话传说,还有著名的古代战役,如《霸王别姬》等。
在这个剧目中,千军万马、惊涛拍岸之势都逼真地表现了出来。除了舞蹈和武打动作,音乐在表演风格的定位中也起着举足轻重的作用。在雄浑而急促的音乐中,观众可仿佛看到奔流的长江,连绵的舰船,摇曳的旌旗,滚滚的硝烟。

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题型:问答题

氮的固定有三种途径:生物固氮、自然固氮和工业固氮。根据最新“人工固氮”的研究报道:在常温、常压、光照条件下,N2在催化剂(掺有少量Fe2O3的TiO2)表面与水发生反应,生成的主要产物为NH3。进一步研究NH3生成量与温度的关系,部分实验数据见下表(光照、N2压力1.0×105 Pa、反应时间1 h):

T/K303313323353
NH3生成量/(106 mol)4.85.96.02.0
相应的化学方程式:2N2(g)+6H2O(l) 4NH3(g)+3O2(g)ΔH=a kJ·mol1

回答下列问题:

(1)此合成反应的a________0;ΔS________0,(填“>”、“<”或“=”)

(2)已知:N2(g)+3H2(g) 2NH3(g) ΔH=-92 .4 kJ·mol1

2H2(g)+O2(g) ===2H2O(l)    ΔH =-571.6 kJ·mol1

则2N2(g)+6H2O(l)===4NH3(g)+3O2 (g) ΔH=________kJ·mol1

(3)从323 K到353 K,氨气的生成量减少的可能原因_________________;

(4)工业合成氨的反应为N2(g)+3H2(g)2NH3(g) ΔH=-92 .4 kJ·mol1,分别研究在T1、T2和T3(T1<T2<T3)三种温度下合成氨气的规律。下图是上述三种温度下不同的H2和N2的起始组成比(起始时N2的物质的量均为1 mol)与N2平衡转化率的关系。请回答:

①在上述三种温度中,曲线X对应的温度是________。

②a、b、c三点H2的转化率最小的是________点、转化率最大的是________点。

③在容积为1.0 L的密闭容器中充入0.30 mol N2(g)和0.80 mol H2(g),反应在一定条件下达到平衡时,NH3的物质的量分数(NH3的物质的量与反应体系中总的物质的量之比)为4/7。该条件下反应2NH3(g)  N2(g)+3H2(g)的平衡常数为________ 。

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