钻探地基时发现，塔地基是8层青砖垒砌，深0.5米，青砖之间是用糯米和明矾粘结。塔基一半建在由火山喷发的坚硬的凝灰岩和晶屑流纹岩上，另一半建在人工堆砌的地基上。

问题：

下列生物中属于生产者的是（  ）

    I think Christmas (圣诞节) is one of the happiest times of the year. Everyone has a smile on their face. It's such a(n) ____for kids. They can't wait to open their gifts and play with their____. It's a nice time for their parents too. They can ____with their family and relax. Let's not forget the true meaning of Christmas.  It is not about ____ Christmas trees or the snowman. It's all about love for each other and ____around the world.

读“我国的四大地理区域”示意图，完成下题．

要（    ）