In northern China during spring, big sandstorm often make trouble for people. Sandstorms usually happen in spring. They have happened in more than 10 provinces in northern China this year. People in southern China don’t have to worry about this kind of bad weather. Most of the sand comes from the north of China. In northern China, lots of places have few trees and don’t get much rain. When there aren’t many trees, the ground can’t keep enough water. Over the years, the ground dries up and turns to sand. When spring comes and the ice melts, the ground becomes loose. Strong winds take the loose sand into the sky. Besides, in northeast China, there lies some vast deserts.
Sandstorms are bad for people’s health. If people breathe in too much sand, they will cough or have serious illnesses. Sandstorms also give farmers lots of problems. Sometimes their sheep get lost in the storms and never come back home. The winds also tear the farmers’ houses down.
What can you do to stop sandstorms? Here’s a piece of advice. Ask your parents to help you plant some trees this spring. If you see people cutting down too many trees, tell them about the dangers of sandstorms, and ask your government to stop them.
【小题1】When do sandstorms usually happen?

A long time before I was born, my grandma and grandpa moved into the house on Beechwood Avenue. They had a young family of 4 little girls. During that time, it was hard to find a job. So, on weekend grandpa and grandma cleaned the garden to grow some of their own food. They planted tomatoes, beans, cabbages, potatoes and strawberries to feed their growing family. All summer long, the family ate food from the garden.
The family grew up, and before too many years had passed, the grandchildren came to visit. Grandma and grandpa still planted their garden every spring. Everyone still enjoyed the good food from the garden and always took some home.
Then grandpa died in one summer when he was eighty-nine years old. It was a lonely winter for grandma. She sat near the window, looking out at the yard and wondering if she could plant the garden in the spring. It would be hard to care for it by herself. When spring came, she planted only a little.
One nice day in the early summer, grandma heard a noise in the front yard and looked out the window. There were thousands of bees in the air. Grandma wondered what she could do. She decided to wait and think it over. Before long, she decided the bees won't bother anyone, so she went about her business and didn't give them any other thought.
That summer, grandma’s little garden grew and grew. The neighbors all puzzled* why they grew so well. One day, grandma’s brother Frank visited her. Frank said，"In my hometown, the farmers often hired* beekeepers to set up bee houses near their fields. The bees helped them to grow." That was when Grandma realized that her bees had helped with her garden all summer.
From that Time on, grandma always believed that since grandpa couldn't be there to help her that summer, he had sent the bees to take his place and make grandma's little garden grow and grow.
【小题1】How did the grandparents feed their growing family?