解决问题。

动物园里有36只 、20只 和3只 。

    It was Sunday morning. Peter was at home. He had no 1. After breakfast，Peter said to his mother， “Mom，could you go to the beach(海滩） with 2？”“OK, dear. I want to go there, too.” his mother said， “The food and drinks there are very3. Let's take some food and drinks, so we don't need to 4 any there.” “Good idea!” said Peter. They 5 a bus there. There weren't 6 people on the bus, and they each had a seat.

    On the beach, Peter and his mother had a 7 time. They played ball games and had a swim in the8.Peter made 9 new friends there. One is Victor and the other is Sally. After getting home, Peter 10an e-mail to his cousin Lucy, and he told her what he and his mother did on the beach.

中国月球探测工程的“嫦娥一号”发射升空飞向月球，已知地球距离月球表面约为384 000千米，那么这个距离用科学记数法表示为（   ）