植物吸收水分和无机盐的器官是（　　）

实践探究题

（情境在线）小张和小王是某中学七年级（3）班的两名学生。在期中考试中小张数学考试因一道题解不出来，一怒之下把试卷撕得粉碎，离开考场。小王期中考试本属自己强项的数学考砸了，他难过得流下眼泪。试卷发下后，他冷静分析原因，认真把试卷重新做了一遍。为了加深印象，他还在笔记本上记下了做错的题目及原因，用来鞭策自己。

Choose the best answer to complete the passage.
   You've just finished with middle school and you may start wondering, “What is high school like? Is high school a lot 1middle school? Is it going to be hard to start out in a new place?"
   Most high schools in America hold a freshman class 2school actually starts. When you talk to people in the freshman class, you 3 that a lot of them are feeling just like you are, excited, maybe 4afraid. Talking about a question of common interest with your classmates could start a new 5.
   The work in high school builds on what you 6in middle school, and gives you more knowledge of many subjects. So you 7feel that it’s a bit more challenging. But these challenges can make you feel 8. And there are many resources (资源）to use if you feel that the work is too much.
   At the beginning of high school, you'll get to know it has more activities than middle school, such as clubs, music groups, and sports teams. These activities may    9 before or after school, or during your free time. 10this, time management is an important skill in your11 year.
   Middle school teaches you the12of study and social skills while high school gives you the chance to learn 13to be more independent (独立的).It's all right if you’re nervous14. Just be patient and keep 15. Once you've got used to your new independence, you can go farther than you ever imagined.