【英文原文2】

As they talked on their way home，the Seals realized that over the last few months，they had watched Tex cope with his blindness．Now they understood why Tex sometimes missed a gate opening or bumped his nose on the chain link fence．And why he usually stayed on the gravel walkways traveling to and from the house．If he wandered off，he quartered back and forth until he was on the gravel again．

While the couple had been preoccupied with Tex’ s troubles，Heinz had grown plump and frisky，and her dark brown－and－black coat glowed with health．

It was soon obvious that the little German shepherd crossbreed would be a large dog――too large to continue sharing a doghouse with Tex and the yellow cat．One weekend，the Seals built another doghouse next to the on e the dogs had shared．

It was then they recognized that what they had assumed was puppy playfulness――Heinz’s pushing and tugging at Tex while romping with him――actually had a purpose．Without any training or coaching，Heinz had become Tex’s“seeing eye”dog．

Each evening when the dogs settled in for the night，Heinz gently took Tex’s nose in her mouth and led him into his house．In the morning，she got him up and guided him out of the house again．When the two dogs approached a gate，Heinz used her shoulder to guide Tex through．When they ran along the fence surrounding their pen，Heinz placed herself between Tex and the wire．

“On sunny days，Tex sleeps stretched out on the driveway asphalt，”says Jeffrey．“If a car approaches，Heinz will nudge him awake and guide him out of danger．Any number of times we‘ve seen Heinz push Tex aside to get him out of the horses’ way．What we didn’ t understand at first was how the two could run side by side，dashing full speed across the pasture．Then one day，the dogs accompanied me while I exercised my horse，and I heard Heinz‘talking’――she was making a series of soft grunts to keep Tex on course beside her．”

The Seals were awed．Without any training，the young dog had devised whatever means were necessary to help，guide and protect her blind companion．It was clear that Heinz shared more than her eyes with Tex；she shared her heart．