Because the bridge could hardly support so many cars and trucks.

2．Why was each stone numbered when the bridge was taken down?

Because they wanted to put each stone in its original place when rebuilding it.

3．What is the best place to park your car?

The small parking lot.

Period One　Welcome to the unit & Reading

Ⅰ.重点单词

1．found vt.兴建，创建

founded(过去式)

founded(过去分词)

2．erupt vi.(火山等)爆发

eruption n．爆发

3．pour vi.涌流，倾泻；vt.倒出(液体)

4．unfortunate adj.不幸的，遗憾的

5．decorate vt.装饰，装潢

6．flee vt.& vi.逃避，逃跑；迅速离开

fled(过去式)

fled(过去分词)

7．destroy vt.毁坏，摧毁

8．commercial adj.商业的，贸易的

9．wealthy adj.富有的，富裕的

wealth n．财产，财富

10．gradually adv.渐渐地，逐渐地

11．cultural adj.文化的

culture n．文化

12．ruin n．废墟；毁坏；vt.破坏，毁灭

13．remains n．遗物，遗迹，遗骸

remain v．保持不变，仍然是；剩余，遗留

14．material n．材料；物质；adj.物质的

15．explode vi.爆炸

explosion n．爆炸