On Thanksgiving Day, a teacher asked her class of first-graders to draw a picture of something they were thankful for. She thought that these children from poor families actually had little to be thankful for. And she found most of them drawing pictures of flowers or tables with food. The teacher was very surprised to see the picture Douglas handed in. It's a hand, a simple hand.
   But whose hand? The class were very interested in the strange picture. “I think it must be the hand of God that bring us food,” said one child, “A farmer,” said another, “Because he grows beautiful flowers.” Finally when the others were at work, the teacher went over Douglas’ desk and asked whose hand it was. “It's your hand, Teacher,” she said quietly and shyly.
   She remembered that she had often taken Douglas, a dirty lonely child, by the hand while having a class break. She often did that with the children. But it meant so much to Douglas. Perhaps this is everyone's thanksgiving, not for the material things we get, but for the chance, in whatever small way, to give to others.

选出合适的词语填在空格中。

支持    支撑   支援

①靠人民的无私____，我们赢得了解放战争的伟大胜利。

②您这么大年纪能____得住吗？

③细细的生竹竿怎么____住那么多重物的？

    Most people have flown a kite or have seen one ride and dip(下降）in strong spring wind. Not so many people know that kites were first made in China thousands of years ago. The ancient Chinese were making and flying kites even before they were writing.

    A long time ago, the Chinese made kites to use in wars. They would fly these war kites in the dark. The kites were fixed(固定）so that they made strange sounds. Men at war would hear these sounds and run away. They thought those strange sounds were made by gods in the sky.

    The ancient Chinese also flew kites to bring good luck and to make their crops grow rich and tall. Sometimes they tied long strings(细绳）and hooks(钩) to their kites. Then they would fly the kites over water, letting the hooks hang down to catch fish.

    The Chinese use sticks(树枝), strings and paper for their kites. Some of these kites look like animals or trees. Others look like birds or houses.

下列物理现象解释正确的是（　　）