Once upon a time，there was a boy named Tim. He lived in a small 1 with nice mountains（山） and rivers. It was great to play there，2 Tim was always busy with his computer games and never noticed the beauty around him.
Tim's grandfather was worried and always 3 about how great the nature（自然） was with him. "What clean and beautiful lake it is!"，his grandfather often said. One day，his grandfather asked Tim to go on a trip with him. Tim agreed，but he was not very 4 .
As they walked in the village，Tim's grandfather pointed out many 5 things，such as colourful flowers with bright leaves，mother birds flying back homes with food to 6 their babies. They even climbed to the top of the hill so that they could see the sights 7 . His grandfather also told him some stories behind each place. Some of the stories were really funny and made Tim 8 all the time. Tim got to enjoy these beautiful things for the first time.
At the end of the trip，Tim's grandfather told Tim not to 9 the small things in life，like a sunny day or a friendly smile. From that day on，Tim learned to enjoy every moment and be thankful.
He thought that there was much more to life compared to 10 . Tim decided to spend more time outdoors and take short trips with his grandfather more often.
