为什么要准备防喷单根？

人的大脑具有无穷的潜能,而一般人在他的一生当中,也仅仅只是开发了其中的2%~5%,连世界著名的科学家爱因斯坦也只是开发了10%左右。我们往往总是羡慕那些头脑灵活的人,但却从来没有意识到,其实我们自己的大脑经过开发也可以达到那个程度。即使是平凡普通的人,只要正确开发使用,他们的大脑也会发挥出无穷无尽的能力,帮助他们取得事业的成功。

(选自《开发孩子的大脑潜能》)

阅读上述材料,运用《思想品德》七年级上册有关知识,回答以下问题:

(1)材料反映了人的潜能的什么特点?

(2)如何发掘自己的潜能?

(3)根据发掘潜能的方法,为自己制订一个切实可行的发掘潜能的计划。

阅读理解。

Good morning, class!

     We know that there are too many net bars around us. The Internet is popular and it makes our lives

colorful. Many of us like going online very much because we can learn how to use the computer and get

more information from the Internet. We can learn English. We can read some good newspapers and

magazines. It can make us clever in playing computer games. We can send E-mails to our friends quickly. We can chat(聊天) freely online with our friends. It can help us get in touch with people from all over the world.

     But some students spend too much time in playing computer game and some stay in the net bars all day and all night. Teenagers even get to have boyfriends or girlfriends online. They write too many letters to

each other. It takes them to much time to chat online so they do worse and worse in their lessons and they don’t study well any more. I think we mustn’t get online when it is time for us to study. We can do it in

summer or winter holidays. We should get online with adults(成人)--our teacher or parents.

     At the same time, if we have lots of free time, we can do some out-of-class activities at school. We

usually have activities from 4:50 to 5:50 in the afternoon. We have different kinds of activities. If you are

interested in sports,you can play basketball or football.We can go to the English Corner.We can practice

talking in English there. We hope we can spend more time on our subjects or on such activities that we

can learn a lot from and less time on the Internet.

     Thank you for listening to me. That’s all.

1.The short passage is about _______.

A. going online              

B. how to communicate with others

C. how to spend our free time    

D. different kinds of activities

2. The Internet can make our lives _______.

A. helpful and important        

B. enjoyable and interesting

C. enjoyable but expensive      

D. different kinds of activities

3. _______ is not good.

A. Sending E-mails            

B. Reading newspapers and magazines online

C. going on line with adults    

D. Spending all day in the net bars 

4. Playing computer games_______.

A. gives us lots of information    

B. makes our studies worse

C. makes us more clever          

D. is harmful to our health

5. Which of the following is NOT right?

A. There are too many net bars in the cities.

B. We can learn English from the Internet.

C. We mustn’t get online when we are studying at school.

D. We cannot do out-of-class activities from 4:50 to 5:50 p.m.

You have to learn how to be a ______ first, and then to be a student.

A．human being

B．people

C．person

D．man

位于我国和巴基斯坦边界上的喀喇昆仑山脉有许多高峰，其中乔戈里峰是世界的( )。

A．第二高峰
B．第三高峰
C．第四高峰
D．第五高峰

一定质量的理想气体，其状态参量的变化在VT图象中从A开始，沿直线经历了B、C，最后到D，下列说法中正确的是（　　）

A．A→B温度升高，压强不变

B．B→C体积不变，压强变大

C．C→D压强变大，体积变小

D．B点的温度最高，C点的压强最大