My name is Sam. This September I am going to middle school. I am going to London Middle School. I am really excited. The school is near my house. I am going to school on foot. I am going to study History, Science, Geography and French. I'm also going to speak Chinese there.

蟋蟀、蝗虫、蜻蜓等昆虫的发育属于不完全变态，这种发育过程中不会出现（   ）

材料一：李华进入了初中生活后，由于对班里同学很陌生，自己性格也比较内心，因此经常把自己封闭起来，不愿意与同学接触。他的这种性格，也使同学们很少与李华交流。对此，李华感到很烦恼。

材料二：小娜由于家住得离学校比较远，很多事情需要小敏的帮助。有一天，小敏向小娜请教一道数学难题，小娜却不愿意教小敏。原因是小娜认为如果教会了小敏，小敏进步之后就有可能超越了自己。