( )1. Why do many people use simple passwords in their daily life?

( )2. How often should we change the passwords according to the text?

【解析】：1. 题目问为什么很多人在日常生活中使用简单密码。根据原文“Many people pick something simple and easy for the passwords... These people are trying to make life easy for themselves.”可知，人们使用简单密码是为了让自己生活方便，B选项符合。A选项“改变个人信息”原文未提及；C选项“帮助黑客快速获取信息”与原文意思相反，人们并非故意帮助黑客。
2. 题目问根据文本我们应该多久更改一次密码。原文明确提到“Change the passwords every three months.”，即每三个月更改一次，C选项正确。A选项“每个月”和B选项“每两个月”均与原文不符。
【答案】：1.B 2.C

( )3. What did the grandpa ask the boy to do?

( )4. What does the underlined word “imitate” mean in Chinese?

( )5. Why couldn't the boy bring the water back?

( )6. What does the passage mainly talk about?

【解析】：
3. 题目问爷爷让男孩做什么。根据文中“Take this coal basket down to the river and bring me back a basket of water.”可知，爷爷让男孩去河边打一篮子水回来，所以选C。
4. “imitate”所在句子“His grandson wanted to be just like him and tried to imitate him in every way he could.”意思是孙子想成为像爷爷一样的人，所以努力在各个方面模仿他，“imitate”应是“模仿”的意思，选A。
5. 男孩用篮子装水，水都漏了，他告诉爷爷用篮子装水是不可能的，结合常识和文中男孩多次尝试都失败，可知用篮子装水本身就是不可能的，选B。
6. 短文通过爷爷让孙子用篮子打水，篮子虽然没打上水却变干净的故事，最后点明“You might not understand or remember everything, but when you read it, you will be changed, inside and outside.”，即阅读能让人从内到外发生改变，主要讲的是通过阅读我们能得到什么，选C。
【答案】：3.C 4.A 5.B 6.C