问题 单项选择题

张大妈买了50个苹果,要分放在一大一小两个袋子中,她先往小袋子中放了一些苹果,结果发现,小袋子不能承受那么多苹果的重量,于是她就从小袋子中拿了一半放到大袋子中,这时候大袋子也承受不了那么多苹果的重量,于是她又从大袋子中拿了一半的苹果放到小袋子中,这时小袋子还是不能承受那么多苹果的重量,于是张大妈从小袋子中拿了8个苹果放到大袋子中,这时两个袋子都能承受其中苹果的重量,且大袋子比小袋子中多4个苹果,问最初小袋子中放了多少个苹果( )

A.25
B.24
C.23
D.22

答案

参考答案:B

解析: 先算出最后大、小袋子中的苹果数量,大袋子中有(50+4)÷2=27(个),则小袋子中有50-27=23(个)。然后一步步还原:(1)从大袋子中拿8个放到小袋子中,则小袋子中是23+8=31(个),大袋子中是27-8=19(个);(2)把从大袋子中拿走的一半放回大袋子中,则大袋子中应该是19+19=38(个),小袋子中是50-38=12(个);(3)把从小袋子中拿走的一半放回小袋子中,则小袋子原来就应该是12+12=24(个)。故本题选B。

阅读理解
任务型阅读
阅读下面短文,根据所读内容在文后A到J的空格里填入一个单词.注意:每空仅填一个单词.
Host family accommodation, or living with host families, remains popular among language travel students for its advantages. These days, host families are trying to offer more in terms of quality, for they still have something to worry about.
Host family accommodation is often seen as the number-one choice for advantages in language study, cultural communication and cost of living. Staying alongside host families enables students to get enough practice for the short time of their studying so that their language acquisition is likely to become faster. Living in host families also has the advantages for students of being able to spend a lot of time communicating with their “host parents”, and get to know the local way of life, people and culture. Another advantage is that host family accommodation can sometimes be the least expensive. It attracts students for it ensures them a family type of living at a low cost.
The advantage, however, have not prevented host families from worrying. On one hand, some host families are losing their unique selling point. The problem is that the majority of hosts in big cities, now generally single and young, have less time available for students, but the selling point for host family accommodation is communication practice. On the other hand, students’ expectations have risen. They are becoming more demanding and asking for more than ever from their accommodation, as they come mainly from high socio-economic groups in their own countries.
To get out of the difficult situation, host families are now making efforts to improve the quality of service. They are trying to make living conditions better, including broadband(宽带) Internet service, private bathroom, and access to plenty of hot water for long showers. They are also providing students with structured family activities.
It is believed that host family accommodation will keep the popularity vote with language travel students.
Title: Host Family Accommodation 
Theme
Host families are improving the accommodation __16____

Language study
possibly becoming ___18_____
Cultural communication
 communicating with __19____
 Knowing the local way of life, people and culture
 cost of ___20___
Being least expensive sometimes
                                        
____17__
 
 
___21_____

 Loss of selling point
Hosts’ having less time for students
 Rise in ____22____
Students’ becoming more demanding

____23____
 
Service quality improvement
____24____ living conditions
Organizing structured familyactivities

____25____

Host family accommodation will keep the popularity vote with students.
Keys:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
单项选择题