问题 填空题

某小组有3名男生和2名女生,从中任选出2名同学去参加演讲比赛,有下列4对事件:

①至少有1名男生和至少有1名女生,

②恰有1名男生和恰有2名男生,

③至少有1名男生和全是男生,

④至少有1名男生和全是女生,

其中为互斥事件的序号是______.

答案

互斥事件是指不能同时发生的事件,

①至少有1名男生和至少有1名女生,不是互斥是件,当取出的2个人正好是1名男生和1名女生时,

这两件事同时发生了.

②恰有1名男生和恰有2名男生,这两件事不能同时发生,故是互斥事件.

③至少有1名男生和全是男生,不是互斥事件,因为“至少有1名男生”包含了“全是男生”的情况.

④至少有1名男生和全是女生,是互斥是件,因为这两件事不能同时发生.

故答案为②④.

阅读理解

It’s really true what people say about English politeness: it’s everywhere. When squeezing past someone in a narrow aisle, people say “sorry”. When getting off a bus, English passengers say “thank you” rather than the driver. In Germany, people would never dream of doing these things. After all, squeezing past others is sometimes unavoidable, and the bus driver is only doing his job. I used to think the same way, without questioning it, until I started travelling to the British Isles and came to appreciate some more polite ways of interacting (交往) with people.

People thank each other everywhere in England, all the time. When people buy something in a shop, customer and retail assistant in most cases thank each other twice or more. In Germany, it would be exceptional to hear more than one thank you in such a conversation. British students thank their lecturers when leaving the room. English employers thank their employees for doing their jobs, as opposite to Germans, who would normally think that paying their workers money is already enough.

Another thing I observed during my stay was that English people rarely criticize others. Even when I was working and mistakes were pointed out to me, my employers emphasized (强调) several times but none of their explanations were intended as criticism. It has been my impression that by avoiding criticism, English people are making an effort to make others feel comfortable. This also is showed in other ways. British men still open doors for women, and British men are more likely to treat women to a meal than German men. However, I do need to point out here that this applies to English men a bit more than it would to Scottish men! Yes, the latter (后者)  are a bit tightfisted.

小题1:

. What is the author’s attitude towards English politeness?

A.He thinks it is artificial.

B.He gives no personal opinion.

C.He appreciates it.

D.He thinks it goes too far.小题2:

What can we learn about customers and retail assistants in Germany?

A.A customer never says thank you to a retail assistant.

B.It’s always a retail assistant who says thank you.

C.They may say thank you only once.

D.they always say thank you to each other.小题3:

We can learn from the last paragraph that Scottish men __________.

A.are more likely to be involved in a fighting

B.are more polite than English men

C.treat women in a polite way

D.are not so willing to spend money for women小题4:

The author of this text is most probably ___________.

A.an Englishman

B.a German

C.a Scottish man

D.a Welshman小题5:

The author develops the text through the method of ____________.

A.making comparisons

B.telling stories

C.giving comments

D.giving reasons

单项选择题