2017士兵军考军考英语阅读理解题

1、2017士兵军考军考英语阅读理解题7关键词：士兵考军校 士兵军考 军考英语 张为臻 阅读理解Put an ice cube from your fridge into a glass of water. You have a piece of string(线) 10 centimeters long. The problem is to take out that piece of ice with the help of the string. But you must not touch the ice with your fingers.You may ask your friends

2、 to try to do that when you are having dinner together. There is a saltcellar on the table. You must use salt when you carry out this experiment.First you put the string across the piece of ice. Then put some salt on the ice. Salt makes ice melt(融化). The ice round the string will begin to melt. But

3、when it melts, it will lose heat. The cold ice cube will make the salt water freeze again.After a minute or two you may raise the piece of string and with it you will raise your piece of ice!This experiment can be very useful to you. If, for example, there is ice near the door of your house, you mus

4、t use very much salt to melt all the ice. If you dont put enough salt, the water will freeze again.1、We must use _ when we carry out this experiment.A. Fridge B. some food C. a table D. some salt2、How long will it take to carry out this experiment?A. More than three minutes. B. Five minutes or so.C.

5、 Only one minute or two. D. About ten minutes.3、What is the task of this experiment?A. Put the ice cube into the glass of water with the help of the string.B. Take out the ice cube in the glass of water with the help of the string.C. Take out the ice cube in the glass of water with your fingers.D. P

6、ut some salt on the ice cube and then put the string across it.4、How many things at least are used in this experiment?A. Three. B. Four. C. Six. D. Seven.5、We can learn something about _ from the passage.A. Physics B. biology C. Chemistry D. maths【答案与解析】本文讲述了把立方形的冰块放入水杯中，如何用细绳取出冰块的实验。1、D。我们进行实验时必须用什么?文章第2段最后一句说当进行实验时你必须用salt(盐)。由此可知答案是D。2、C。文章第4段的After a minute or two.(一两分钟后你可以提起细绳.)，由此可知进行这个实验仅需一两分钟时间。张为臻博客。3、B。这个实验的任务是什么呢?由文章第1段第3句The problem is to take out that piece of ice with the help of the string(问题是如何用细绳将冰块拿出)，由此可知答案为B。4、B。实验中至少用