问题 解答题

有甲、乙、丙三个不透明的布袋,在甲袋中放有12个红球,在乙袋中放有6个红球,6个黄球,在丙袋中放有12个黄球,这些球除颜色外,其它都相同,从三个袋中任意摸出一球,哪一个可以使“摸到红球”是必然发生的?哪一个可以使“摸到红球”是不可能发生的?哪一个可以使“摸到红球”是随机发生的?

答案

可以使“摸到红球”是必然发生的;

丙袋可以使“摸到红球”是不可能发生的;

乙袋可以使“摸到红球”是随机发生的.

选择题
阅读理解

A staycation is a vacation when you do not travel at all. Some people use a staycation to just stay at home, and others prefer to experience the attractions around them without traveling very far.

There are many choices for staycations. Any town or city has plenty of choices for things to do if you know where to look. If the weather is nice, you can visit the local gardens or forests for a hike. You can look online for several historic places and create your own history tours. Of course, you can also visit other attractions in the areas like museums, restaurants, bars, parks, beaches, and so on. Often, if you drive just a few hours, you can find a city that you can walk around and see. Then by driving home you can save the cost of a hotel and a plane ride.

Others take the term “staycation” word for word and do not leave their houses at all. Some choices for this can include taking time off to cook a great meal and enjoy it together or spending all day at a pool.

Just as a coin has two sides, staycation has its advantages as well as disadvantages.

Since you are not traveling or staying in a hotel, a staycation can be unbelievably costeffective(低成本的). You don’t have to pay for a hotel, so that cost has been completely eliminated. You are also saving by not driving very far and by not taking an airplane anywhere. Travel costs have become really high, and the farther you go, the higher they are. By staying close to home, you cut that cost by quite a bit. You are also pushing money back into your local economy(经济)by spending your money at local businesses rather than in cities that are far away from home.  Finally, any stress that you feel with travel, whether that is from driving long distances or looking for an airport, will completely disappear.

小题1:For what purpose is the text written?

A.To introduce the general information of staycatons.

B.To compare staycatons with other vacations.

C.To persuade more people to have staycations.

D.To provide different ways of staycations.小题2:What is one of the advantages of a staycation?

A.The economy in other cities is also improved.

B.People spend nothing when staying at home.

C.You can visit local attractions for free.

D.There is no stress from traveling.小题3:What does the underlined word “eliminated” in Paragraph 5 probably means?

A.included

B.removed

C.covered

D.raised小题4:What will probably be discussed in the following paragraph?

A.When to take a staycation.

B.What disadvantages a staycation has.

C.Why people prefer a staycation.

D.How to have a staycation safely.