This is a photograph ____our village.

Our village is in a valley.

It is between ____hills.

The village is on a ____.

Here is another photograph of the ____.

My wife and I ____ walking along the banks of the river.

We are on the left.

There is a boy in the water.

He is ____ across the river.

Here is ____ photograph.

This is the school building.

It is beside ____park.

The park is on the right.

Some ____ are coming out of the building.

Some of them are ____ into the park.

化学与材料密切关联．

①制造普通玻璃的主要原料是纯碱、石灰石和 ____．

②钢铁在酸雨中会发生电化学腐蚀，其负极的电极反应是　 ____．

③硫化橡胶具有较高的强度和化学稳定性，它具有 ____结构．

请根据以图表提供的信息，解答下列问题：