Last night I had a wonderful dream. I ____  that I turned into a good swimmer.
In my dream, the weather ____  fine and I came to a nice beach. There were few people on the beach and I ____  to swim in the sea. While I was swimming, some ____  fish followed me all the time. When I stopped, they came to swam ____  me. Then, one of the fish began to talk with me. It ____  Chinese, too! We had a wonderful conversation. Soon we became good ____  and it invited me to visit the place where they lived.
____  I heard a voice, “Weiwei, it’s time to get up! Breakfast is ready!” It was Mom’s voice. Just then I woke up from my sweet dream ____  had to face the real world again.
   My dream was ____  like a cartoon film, wasn’t it?

人口、资源、环境与发展之间组成了一个相互作用、相互依赖的整体。其中的关键因素和实质分别是（　　）

在下面一段文字横线处补写恰当的语句，使整段文字语意完整连贯，内容贴切，逻辑严密。每处不超过15个字。

    从新课改的视角看，教师不应再是单纯的知识传授者，①____，他将“游客”引入佳境，自由观赏、探究奥秘，但当“游客”对巍然高耸的建筑群茫然不解或不识鸟兽草木之名时，他不会置身事外，②____，令人如沐春风，有时还要像仙人指路，在“游客”的思路出现滞涩凝绝时轻灵而高妙地一“点”，即收到“③(诗句)____”的奇效。