问题 选择题

设NA为阿伏加德罗常数的值,下列说法正确的是(  )

A.5.85gNaCl晶体中含有氯化钠分子的数目为0.1NA

B.25℃时,1LpH=1的醋酸溶液中含有醋酸分子数大于0.1NA

C.含0.1molFeCl3的饱和溶液中Fe3+数目为0.1NA

D.6.25mL 16mol/L浓硫酸与足量铜反应,转移电子数为0.1NA

答案

A.NaCl为离子化合物,组成微粒为离子,不存在分子,故A错误;

B.醋酸为弱电解质,存在部分,且电离程度很小,电离1LpH=1的醋酸溶液中c(H+)=1mol/L,醋酸分子数大于0.1NA,故B正确;

C.Fe3+水解生成Fe(OH)3,溶液中含0.1molFeCl3的饱和溶液中Fe3+数目小于0.1NA,故C错误;

D.随着反应的进行,浓硫酸的浓度逐渐降低,稀硫酸与铜不反应,则转移电子数小于0.1NA,故D错误.

故选B.

阅读理解

Sports play an important role in British life. The most popular sport is football. Cricket is also popular in England, but is less important in the other home nations. Rugby union and rugby league are the other major team sports. Tennis is the most important sport for the two weeks of the Wimbledon Championships(温布尔登网球锦标赛)

Football

The modern global game of football developed from traditional British football games in the 19th century. Club football is organized separately in each of the home nations. English football has a league system which combines thousands of clubs. Scotland has a similar but smaller club football structure. The top level league in Wales is the league of Wales. In Northern Ireland the main league is the Irish Football League.

Each season the most successful clubs from each of the home nations qualify for(使…具有…的资格) the two Europe wide club competitions organized by UEFA(欧足联), the UEFA Champions League and the UEFA Cup.

Cricket

Cricket was invented in England. It is regarded as England’s national summer game and it is probably the second most widely covered sport.

There are eighteen professional country clubs, seventeen of them in England and one in Wales. Each summer the country clubs compete in the first class Country Championship, which consist of two leagues of nine teams and in which matches are played over four days.

Rugby

Like football, rugby union and rugby league both developed from traditional British football games in the 19th century. For much of the 20th century there was great antagonism between rugby leagues, which was a mainly working class game based in the industrial areas of northern England, and rugby union, which is a mainly middle class game in England, and is also popular in the other home nations.

Tennis

Tennis is yet another sport which originated in the United Kingdom and the governing body of the sport is the LTA(草地网球协会). However, no British man has won Wimbledon since 1936 and no British woman since 1977. The only British players of either sex to reach the world top 50 in recent years are Greg Rusedski, who learnt his tennis in Canada, and Tim Henman and Andrew Murray ,who did not pass through the LTA system either.

小题1:What do we know about football?

A.The top clubs represent the UK in the two Europe competitions.

B.Football is a newly-invented game in England

C.The top level league in England is the Irish Football League

D.Club football is an organized union in the UK.小题2:From the passage we can learn      .

A.There exist all professional county clubs in England.

B.Rugby leagues was enjoyed by middle class

C.Tennis is in the charge of LTA

D.Greg Rusedski did not pass through the LTA system.小题3:The underlined “antagonisim” in the sixth paragraph probably means     .

A.preference

B.friendliness

C.similarity

D.opposition小题4:From what can we read the passage?

A.tour guidebook

B.book review

C.news report

D.news magzine

问答题 简答题