10．B。be always doing sth 意为“总是干某事”。

9

Someone says, “Time is money.” But I think time is __1__ important than money. Why? Because when money is spent, we can get it back. However, when time is 　2　 　it’ll never 　3　 . That’s 　4　 　we mustn’t waste time.

　 It goes without saying that the 　5　 　is usually limited. Even a second is very important. We should make full use of our time to do 　6__　 　useful.

　 But it is a pity that there are a lot of people who do not know the importance of time. They spent their limited time smoking, drinking and　 __7　 . They do not know that wasting time means wasting part of their own __8　 .

　 In a word, we should save time. We shouldn’t 　9　 　today’s work for tomorrow. Remember we have no time to 　10　 .

9．D。与后面的方法比起来，作者认为独立自主的学习为最佳方法，最佳方法当然应使人获得最多的知识，故选择the most。

8．C。本段主要就学习方法展开讨论，该句应为总括句，空白处当然应填入ways。

7．A。孩子们在学习过程中发现问题时，由于求知的欲望，应尽力去解决问题，故选择try。

6．B。随着年龄的增长，孩子们开始read各类书籍而不是write，learn在这里搭配不当。

5．B。孩子们在耳听眼观的过程中经常会学到一些东西。everything过于绝对化 ，nothing、anything 不合文意，应选 something。

4．A。小孩对知识的接受主要依靠于他们对事物产生的兴趣，词组be interested in sth 表示“对……感兴趣”，而interesting用来形容令人感兴趣的事物，故选择interested。

3．B。按常理一个人在小的时候就开始学习了，所以应用when引导这里的时间状语从句。

2．C。根据下文，大脑所需要的食物应为knowledge。

1．D。本句承接上文，进一步强调食物的重要性，要有强壮的体魄得吃得好，故选eat。