阅读理解，请阅读材料，完成后面的1-5题。
I remember when I was growing up ,my mom always said ,“Half the fun of doing anything is sharing it with others .” It's so true .Friends allow us to enjoy the taste of our success and our joys and comfort us in our challenging moments. They provide a mirror for us to learn more about ourselves .I've always looked at friends as the family members.They enrich our lives .As Robert Louis Steven once said,"A friend is a present which you give yourself."
To be a good friend，①成为一个好的听众是很重要的.Hear what your friend says first rather than making conclusions（结论）quickly. Sometimes it is useful to repeated their words back to them， it can help them to realize whether their words were what they wanted to say.
Patience is also important in being a good friend. You know the old golden rule, “Care for others they way you would like them to care for you.”The support of a friend during a difficult time could make the difference between success and failure. ② Encouragement and confidence are the best gifts that can change a person's life.
We should choose our friends carefully, because they can have a huge effect on our life. As someone told me“The attitudes of your friends are like the button(按钮) on a lift. They will either take you up or down.
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是三个完全相同的小灯泡，串联后接在电压为6V的电路中，原来三个小灯泡都正常发光，现在三个小灯泡都不亮了．用电压表接在a、c两端时，示数是6V；接在a、b两端时，示数是0．接在b、d两端时，示数也是0，那么灯丝断了的小灯泡是（ ）
