1. 阅读短文，并回答问题。Read and answer the questions.
I'm Mike. I'm thirteen years old. I'm a cool boy. Today is Saturday. My friends and I are playing on my Grandpa's farm. We're excited (兴奋的). Lily is standing beside the lake. She's counting the ducks. Eddie is sitting in front of the big tree. He's drawing the horses. Bill is lying(躺) on the grass. His two arms are under his head. My Grandpa is feeding his animals. I'm helping him. The farm is big and beautiful. We like this farm.
(1) How old is Mike?
He's ________.
(2) Where are Mike and his friends?
They're ________.
(3) What is Lily doing?
She's ________ the ducks.
(4) Where is Eddie?
He's ________ the big tree.
(5) Is the farm small or big?
It's ________.

(1) thirteen years old (2) on Mike's Grandpa's farm (3) counting (4) in front of (5) big

2. 按要求从文中找出单词并填空。Choose and write.
(1) 反义词：on________ sitting________
(2) 同类词：horse________ two________

(1) under; standing (2) cow; three

小实验
鸡蛋浮起来了
分别在三个装有相同饮用水和鸡蛋的杯子中加入不同量的盐，你会发现鸡蛋会在杯子中的不同位置停留下来。快来试试吧！你知道这是什么原因吗？

(此现象较难看到) (答案在本书中找)

物体的浮沉由物体密度与液体密度的大小关系决定，鸡蛋密度不变，加入不同量盐使水的密度改变，第一个杯子水密度小于鸡蛋密度鸡蛋下沉，第二个杯子盐水密度大于鸡蛋密度鸡蛋上浮最终漂浮，第三个杯子盐水密度等于鸡蛋密度鸡蛋悬浮。