问题 填空题

听觉的形成过程大致是:外界的声波经过______传到______,______的振动通过听小骨传到______,刺激了______内对声波敏感的感觉细胞,这些细胞就将声音信息通过______传给大脑的一定区域,人就产生了听觉.

答案

耳的结构如下:

听觉的形成过程是:外界的声波经过外耳道传到鼓膜,引起鼓膜的振动;振动通过听小骨传到内耳,刺激耳蜗内的听觉感受器,产生神经冲动;神经冲动通过与听觉有关的神经传递到大脑皮层的听觉中枢,就形成了听觉.

故答案为:外耳道;鼓膜;鼓膜;内耳;耳蜗;与听觉有关的神经.

阅读理解

阅读理解。

      Harry goes out after lunch. He goes in the tree house. But he can't find his football. He's sure

Nick takes it away. He doesn't know where they are playing. He comes down and begins to play

with his dog Bobby. His father comes out, with a bag in his hand.

      "Where are you going, Daddy?" asks the boy. 

      "Mr Hill is ill," says his father. I'm going to see him."

      Mr Hill has a nice garden. There are all kinds of flowers in it. And the boy likes to pick some

there. So he asks his father to take him there. Half an hour later, their car stops at Mr Hill's gate

and an old man opens the door for them.

      Mr Hill is in bed. Harry says hello to him and then comes out. Rose, the little daughter of Mr

Hill's, brings him to the garden and picks some flowers for him. The boy is happy and thanks the

little girl.

      "Do you feel like a cup of coffee, Harry?" asks Rose.

      "Look at me carefully," says the boy. "Do I look like one?"

1. Harry goes out in the a______.

2. Harry p______ his football in the tree house.

3. Nick k______the football is in the tree house, so he takes it away.

4. Harry's father wants to s______ Mr. Hill.

5. Harry goes to Mr. Hill's to get some f______.

6. Harry and his father go to Mr. Hill's by c______.

7. The two children go to the garden when their f______ are talking.

8. Rose knows Harry l______ flowers and picks some for him.

9. Rose asks Harry if he wants to d______ a cup of coffee.

10. Harry t______ Rose says he looks like a cup of coffee.

填空题