问题 填空题

(4分)人们一日三餐的主食由大米、面粉等制作而成,其主要成分是           。医疗上常用作“钡餐”的是           (填" 硫酸钡”或"碳酸钡")。

答案

淀粉  硫酸钡

大米、面粉主要成分是淀粉。“钡餐”指的是硫酸钡。

单项选择题 A1型题
阅读理解

Switzerland(瑞士) is famous for its watches。 However, this country didn’t invent the watch。It was the British who did it。 Here is a story of how the watch was brought to Switzerland。

Many years ago , an Englishman was travelling to Italy 。 On his way he stopped in a small town in South Switzerland。 This Englishman travelled in a carriage(马车) inside which there was a carriage watch。 This was the earliest kind of watch。 A native shop assistant (售货员) happened to see the watch 。 He wondered what it was and asked the Englishman about it。 “ It is a carriage watch 。” said the man 。 This machine tells the time but now it isn’t working 。

At once the shop assistant offered to try to repair it 。 So the traveller handed him the watch。 The assistant was a very wise man 。 So it was not surprising that he managed to repair it 。 He even remembered how it was made。 As soon as the traveller had gone on his way , he made a watch exactly the same type。

Thus the watch-making was started in Switzerland。 Today Swiss watches are sold in stores all over the world。

50 Switzerland is famous for ____________。

A 。making watches    B selling watches   C inventing watches    D the carriage watch

51。It was ______who brought a watch to Switzerland earliest 。

A  a Swiss   B an Italian     C an Englishman     D a shop assistant

52。 The earlist watches were made in __________。

A Switzerland   B England    C Italy   D a small town

53 The first Swiss watch was  made  by ___________。

A an Italian shop assistant

B an English shop assistant

C a man who came from Switzerland

D。 a man who was travelling to Italy。

54。 The carriage watch was a machine which __________。

A was put in the carriage       B wasn’t working

C told people time            D had to be repaired