阅读理解。

     People say teenagers are no good. They make too much noise in shopping malls; they drive carelessly up

and down America's main streets. And at least some of the time those things are true. But we shouldn't forget

that there are hard moments in the life of a teenager too.

     I watched such a moment not long ago at a woman's funeral (葬礼) which happened in a church. A teenage grandson stepped forward. Softly he began: "I want to share a few values that Nana taught me. She never failed to see light in any situation. When our family dog would attack her, what would Nana say? 'Oh, what beautiful

markings that dog has.' That was Nana."

     "She was a strong woman who often lived in the shadow of my grandpa, who was a successful

businessman in this city. But she was the one behind the scenes who provided the strength and support for

Grandpa's career," he said, with a voice now trembling."That was Nana's way." Finally, in a voice breaking

free of sorrow, he looked up and said,"Nana taught me courage. She put up a fight to the end, when she died

peacefully, which is how she lived her life. That was Nana's way, and I hope I can carry on in the same

manner."

     There are no hearts as sensitive (敏感的) as those of teenagers, because everything is happening to them

for the first time. The trouble with teenagers is that they haven't learned to be controlled. When that boy rose

to speak about the woman who had been his dearest friend, his honest voice dragged each of us out into the

open where we could no longer hide. I was moved and learned a lot.

1. According to the paragraph, what does "light" stand for?

A. not heavy

B. the positive side of things

C. a device (装置) for lighting or igniting fuel or charges or fires

D. having a relatively small amount of coloring agent

2. From the boy's speech, we know his grandmother ______.

A. was a weak woman living in the shadow of his grandpa

B. liked dogs very much even if they often attacked her

C. could see everything around her though she was old

D. had great influence over the boy when she was alive

3. We can infer from the passage that the boy ______.

A. was filled with sadness and gave up finishing his talk

B. was always very good at expressing himself

C. practiced a lot in order to give a moving speech

D. had great difficulty in accepting the loss of Nana

4. The writer wanted to tell the readers ______.

A. the young people were too weak to face certain facts

B. the young people have learned to control themselves

C. the adults could learn something valuable from the young

D. the adults should teach the young how to deal with the death