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83. Use several words to describe the possible feelings of the elderly job seekers? ( No more than 4 words )

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82. Why is it hard for the elderly job seekers to find a job? ( No more than 13 words )

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  ● orchestras→79. ____________ concerts each term   

  ● bands→being commonly 80.___________by pupils themselves.

SECTION B

Directions: Read the following passage. Answer the questions according to the information given in the passage and the required words limit. Write your answers on your answer sheet.

The worst US economic recession (萧条) in 70 years is forcing senior citizens out of retirement, leaving them fighting for jobs in a weak labor market or risking homelessness.

A study by Experience Works, released on Tuesday, showed 46 percent of the 2,000 low income people over 55 years who participated needed to find work to keep their homes. Nearly half of them had been searching for work for more than a year.

“These people are at the age where they understandably thought their job-searching years were behind them,” said Cynthia Metzler, president and CEO of Experience Works.

“But here they are, many in their 60s, 70s and beyond, desperate to find work so they can keep a roof over their heads and food on the table.”

According to the study, many of the participants had no intention of working past their 60th birthday, but had to change plans after being dismissed or following the death of the partner. Over a third of the participants had retired.

Ninety percent of respondents 76 years and older planned to continue working for the next five years.

Huge medical bills due to a personal illness or that of a spouse(配偶) were also reasons for coming out of retirement, the survey found. The longest and deepest economic slump since the 1930s is making finding a job for the low-income elderly workers a difficult challenge.

The Experience Works study found that 46 percent of the elderly jobseekers were sometimes forced to choose between paying rent, buying food or medication. Almost three-quarters believed their age made it harder to compete for jobs with younger workers.

“This study underscores calls for the need to create policies that remove barriers to employment for older workers and provide additional programs and services specifically aimed at helping older people re-enter the work force or remain working,” said Metzler.

81. What has caused the American retired senior citizens back to work? ( No more than 8 words )

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● Form → 75.________ learn music together as a class.   

  ● Attitude → the majority of the students said they 76. ___________ music lessons as a class.

  ● 77. ___________ → western classical music / folk music / world music

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  ● Around 25% of British pupils 72. _____________.

  ● 40% of the 75% that 73._________ would like to.

  ● 74.______ learn the violin.   

● 64% learn the piano or keyboard. 

● 16% learn strumming instruments. 

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10.(12分)由于温室效应和资源短缺等问题,如何降低大气中的CO2含量并加以开发利用,引起了各国的普遍重视。目前工业上有一种方法是用CO2生产燃料甲醇。一定条件下发生反应:

CO2(g)+3H2(g)    CH3OH(g)

+H2O(g),右图表示该反应进行过程

中能量的变化。

  (1)该反应的△H      0

(填>、<、=)。

  (2)该反应平衡常数K的表达式为

     

  (3)温度降低,平衡常数K   (填

“增大”、‘‘不变”或“减小”)。

  (4)为探究反应原理,现进行如下实验:

在体积为1 L的密闭容器中,充入

1mol CO2  和3molH2,测得CO2

CH3OH(g)的浓度随时问变化如右图所示。

①从反应开始到平衡,用氢气浓度变化表

示的平均反应速率v(H2)=  

②下列措鹧中能使n(CH3OH)/

n(CO2)增大的有   u。

       A.升高温度

       B.加入催化剂

       C.将H20(g)从体系中分离

       D.再充入l molC02和3 mol H2

E.充入He(g),使体系总压强增大

  (5)甲醇、O2、KOH溶液可构成燃料电池,其负极反应式为        

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9.(19分)(1)汽车尾气中常常含有CO、NOx等气体,为减轻污染,当代汽车都加装了“三效催化净化器”,可将汽车尾气中的有毒气体处理为无污染的气体,下图为该反应的微观示意图(未配平),其中不同符号的球代表不同种原子。 

    下列说法中正确的是   

    A.该反应是置换反应

    B.该反应中乙被氧化了,发生了还原反应

    C.每生成2mol生成物,该反应共转移16/5mol电子

    D.使用催化净化器的汽车必须使用无铅汽油,因为含铅化合物会使催化剂中毒

 (2)NH3的催化氧化也可产生NO,某化学课外活动小组设计了下图所示的实验装置,进行“氨的催化氧化”实验(固定装置略去)。

①若A中使用的药品是碳酸氢铵,则在下列仪器中,A中未画出的仪器有   (填序号)。

a.乱分液漏斗  b.试管  c.烧瓶  d.酒精灯  e.导气管  f.橡胶塞

②装置B的作用是:       

③装置C中发生反应的化学方程式为        

④若A、B中药品足量,则装置D中可以观察到的现象是         

⑤指导老师从安全与环保的角度考虑,指出该装置有两处明显的缺陷。请你提出修改建议:a.             

b.            

  (3)一些同学提出也可将上述所示装置中A、B

部分换成右图所示装置进行实验。则反应开

始前:

①分液漏斗中盛放的药品是       

②烧瓶中发生反应的化学方程式为:

            

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8.(19分)某烃的衍生物A的蒸汽密度是相同条件下氢气的50倍,其中碳、氢元素的含量共为68%,其余为氧元素。A中碳链无支链,1 mol A能与2 mol H2发生加成反应,但不能与溴水发生加成反应。根据下面的转化关系回答下列问题。

  (1)A的分子式为          

  (2)D的结构简式为         ,D的核磁共振氢谱图中将出现      种峰。

  (3)G中所含官能团的名称为:          

  (4)B-C的反应类型是      ;C→D的反应类型       

a.消去反应   b.加成反应c.还原反应   d.酯化反应

  (5)写出下列转化的化学方程式

①A→B                       

②C→E                      

③G与NaOH溶液反应                      

  (6)M是F的同系物,其相对分子质量比F tJJ、14,写出满足条件的M的所有可能的结构:             

 

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7.(14分)A、B、C、D、E 5种短周期主族元素分占三个周期,A、B、C为同一周期依次相邻的3种元素,A和C的原子序数之比为3:4,E原子的电子层数等于最外层电子数,D的原子序数小于E。请用化学用语回答相关问题:

  (1)A元素在周期表中的位置         

  (2)比较C和E简单离子半径大小:        

  (3)元素E的一种常见的可溶性盐溶液呈碱性,其原因是(用离子方程式表示):

               

  (4)X、Y、Z、甲、乙、丙是由A、B、C分别与D形

成的化合物,六种化合物可以排成下表,其中同一

横行的分子中电子数相同,同一纵行的物质所含元

素种类相同,其中X、Y、甲常温常压下为气体,

Z、乙、丙常温常压下为液体。

①甲的分子式为         ,丙的电子式为     

②乙和丙常作火箭推进器的燃料,反应后的产物无污染。已知8g液态乙与足量液态丙完全反应,产物均为气体时,放出热量为160.35kJ,试写出该反应的热化学方程式:          

  (5)2007年7月2日,美、德两国科学家成功合成了具有独特化学特性的E2D6化合物,写出它在C2中完全燃烧的化学方程式:        

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6.将l1.2g的Mg-Cu混合物完全溶解于足量的硝酸中,收集反应产生的x气体(假定产生的气体全部逸出)。再向所得溶液中加入足量的NaOH溶液,产生21.4g沉淀。根据题意推断气体X的成分可能是           (   )

    A.0.3mol NO2和0.3mol NO 

    B.0.1mol NO、0.2mol NO2 和0.05mol N2O4

    C.0.2mol NO2和0.1mol N2O4

    D.0.6mol NO

第Ⅱ卷

本卷共4题。共64分

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