阅读理解。
Some years ago on a hot summer day in south Florida a little boy decided to go for a swim in the old
swimming hole behind his house. In a hurry to dive into the cool water, he ran out of the back door, leaving
behind shoes, socks, and shirt as he went.
He flew into the water, not realizing that as he swam toward the middle of the lake, a crocodile was
swimming toward him. His mother in the house was looking out of the window and saw the two. In great
fear, she ran toward the water, shouting to her son as loudly as she could. Hearing her voice, the little boy
became alarmed and made a U-turn to swim to his mother. It was too late. Just as he reached her, the
crocodile reached him. From the shore, the mother grabbed her little boy by the arms just as the crocodile
snatched his legs. That began an incredible tug-of-war between the two. The crocodile was much stronger
than the mother, but the mother was much too passionate to let go. A farmer happened to drive by, heard
their screams, raced from his truck, took aim and shot the crocodile.
Remarkably, after weeks and weeks in the hospital, the little boy survived. His legs were extremely
scarred by the attack of the animal. And, on his arms, were deep scratches where his mother's fingernails
dug into his flesh in her effort to hang on to the son she loved.
The newspaper reporter, who interviewed the boy, asked if he would show him his scars. The boy lifted
his legs. And then, with obvious pride, he said to the reporter, "But look at my arms. I have great scars on
my arms, too. I have them because my Mom wouldn't let go."
Never judge another person's scars, because you don't know how they were made.
1. Which of the following will be the best title for the text? [ ]
A. Scars of Love
B. A Brave Mother
C. A Terrible Experience
D. Don't Judge by Appearance
2. Hearing Mother's shouts, the boy _____. [ ]
A. remained in the middle at a loss
B. didn't stop swimming forwards
C. swam back towards the shore
D. was ready to fight the crocodile
3. Which of the following statements is True according to the text? [ ]
A. A crocodile attacked him when the boy and his mother were swimming.
B. The crocodile bit the arms of the boy when it reached him.
C. There is always an interesting story behind every scar.
D. It was the farmer who shot the crocodile.
4. By saying "But look at my arms. I have great scars on my arms, too" in paragraph 4, the boy really wants
to show _____. [ ]
A. how deep the scars were
B. what a brave boy he was
C. how great and beloved his mother was
D. how many scars and scratches he had
离子最外层有2个电子，该阳离子有6个电子层。由此推知下列说法中正确的是（ ）