【正文】
each year, students take part in a kind of petition called the Science Olympiad. It has a lot of different events. Students go there to show how much they know about the science of music, biology, chemistry and others. My best event is forestry. 綜合能力提升八 The big day had e at last! First, I went to watch the tower building petition. That39。t know much about those things, so I just watched my teammates do most of the work. 綜合能力提升八 At last, it was time for my favourite event—forestry. The rules were easy. We had to look at more than 40 different kinds of leaves and find out which plants they were from. We also had to answer some questions about the uses of each leaf. I knew almost all of the leaves and could answer most of the questions. I had spent more than a month study