【推荐1】Writing text messages (短信）while walking is dangerous. A study says it is more dangerous than texting while driving. Researchers found that there are more     1     (injure) to texting pedestrians (行人) than there are to texting motorists. Their report says walking is not as easy     2     we think. We must focus on many things at the same time to walk safely in a straight line. The researchers said that people forget how to walk     3     (proper), so dangerous things happen to them. They bump into walls and other people. They walk into cars, fall over things in the street, and even fall into holes     4    down stairs.

A professor said walking is a difficult action. There are several reasons     5     texting makes walking dangerous.     6    is that people cannot see the street. Another is that they focus on their phone keyboard instead of their feet. A final reason is that their minds are somewhere else — they are not thinking about     7     (walk) from A to B safely. The professor said over 6,000 people     8     (visit) his hospital last year because of texting. He said     9     worst cases are head damage. When a pedestrian is tossed into the air he/she has nothing     10     (protect) the head. The damage can be serious.

When a man was walking by some elephants, he     1     (sudden) stopped. He was puzzled that these huge animals were being held only by a small rope(绳子) tied to their front legs. No chains, no cages.     2     was obvious that the elephants could break     3     (they) bonds at any time, but for some reason, they did not.

He saw a trainer nearby and     4     (ask) why the animals just stood there and made no attempt to get away. “Well,” the trainer said, “when they were very young and much smaller, we used     5     same rope to keep them from     6     (run) away. At the age, it’s enough to hold them. As they grow up, they are used to believing they cannot break the rope. They believe it can still hold them, so they never try    7     (break) free.”

The man was     8     (amaze). These animals could break free whenever they wanted, but because they believed they couldn’t, they were stuck right in the place    9     they were.

How many of us go through life like the elephants—holding onto the belief that we cannot do something simply because we failed at it once before?

Failure is a part of learning     10     we failed once, it doesn’t mean we can never succeed. We should never give up trying when we encounter failures in life.