兴趣小组利用银边常春藤的叶片（中间绿色、周边白色）进行“绿叶在阳光下制造淀粉”的实验，如图．
“戈壁沙滩变良田，积雪融化灌农庄”体现当地富有特色的( )
①相信自己能成功②遇到难题决不放弃 ③专心致志做题④能有效利用周边同学
have fun; dress up; play tricks on; gain; admired… for; in memory of; look forward to; look as though/if; take place; starve to death
