It’s possible to do many simple tricks with numbers. Here is one trick, if you f

题型：不详难度：来源：

It’s possible to do many simple tricks with numbers. Here is one trick, if you follow the instructions, you will find it’s really interesting.
First, write down your house number. For example, if your address is 73 Jin Shang Road, you would write down 73. After you write down your house address number, you double it. Then add 5 to this doubled number. For example, if your address is 73 and you double it, you will get 146. Then you add 5, you will get 151.
And then, multiply this number by 50. In our example here, you’ll get 7550. The next step is to add your age to this total. For example, if you’re 16 years old, you should add 16 to this total. In our example here, the result will be 7566.
After that, you have to add the number of days in a year, which is 365. In our example here, 365 added to 7566 is 7931.
The final step is this: Subtract 615 from the number that you have. Take away 615 from the total. In our example, 7931 minus 615 is 7316.
The result here—7316—is the trick. The first part of the number is the address and the last part of the number is the age of the person. That is, 73 is the address that we started with, and 16 is the age that we used.
Isn’t it interesting? Do you want to have a try now?
小题1:How many steps are there in the trick?
A. Four                          B. Seven                    C. Nine
小题2:The third step is ______.     
A. ＋5                           B. ×50                          C.－615
小题3:Tom is 38, he lives in 89 Jin Shang Road. If he plays this trick, he will get______ in the end.
A. 3889                         B. 9150                          C. 8938
小题4:When you play this trick, ______ is Not the number you have to use every time.
A. 50                          B.73                        C. 365  
小题5:The best title of this passage is “______”.    
A. A trick with numbers          B. An interesting problem        C. How to work out a trick

答案

小题1:B
小题2:A
小题3:C
小题4:B
小题5:A

解析

试题分析：短文大意：这篇短文主要讲述了一个数字游戏的步骤，并举例进行了说明。
小题1:细节理解题。根据短文第二段if your address is 73 Jin Shang Road, you would write down 73. After you write down your house address number, you double it. Then add 5 to this doubled number.及下文And then, ……After that, ……The final step is this:描述，可知这个游戏一共有七步。故选B。
小题2:细节理解题。根据第二段, if your address is 73 Jin Shang Road, you would write down 73. After you write down your house address number, you double it. Then add 5 to this doubled number.描述，可知第三部是＋5，故选A。
小题3:计算分析题。根据短文描述，可知我们首先应该将门牌号乘以2，然后加上5，然后再再用他们的结果乘以50，接下来加上自己的年龄和一年的天数，最后再减去615，据此解答即可.(89×2+5)×50+38+365－615=8938，故选C。
小题4:细节理解题。阅读短文if your address is 73 Jin Shang Road,可知，73是用来举例的一个地址。故不是每次都用得到。故选B。
小题5:标题归纳题。阅读短文可知，本文主要描述的是一个数字游戏的游戏步骤。故选A。