一、根据句意和所给的中文提示，写出句子中的单词
1．You must take plenty of food and water if you want to travel through the ________(沙漠)．
2．We have to change our travel plan because of the weather ___________(状况)．
3．This panda usually eats about 10 kg of ________(竹子) a day.
4．Let's draw a ________(正方形) on a piece of paper.
