10．There will be a lecture (讲座) about global warming and environmental protection.

9. New York is a big commercial (商业的)city.

8. Building materials (材料) are more and more expensive nowadays.

7．He graduated from a famous foreign language institute (研究所).

6．It’s good to be back in civilization (文明)after living in a tent in the remote area for two weeks．

5．Only wealthy (富有的) people could afford to buy this kind of houses．

4．It’s a pity that numbers of people lack the sense of protecting the remains (遗迹) of the Great Wall.

3．He was very attentive with his head buried (埋) in a newspaper．

2．The volcano Fuji in Japan hasn’t erupted　　　 (喷发) for many years.

1．The financial problems destroyed　　 (摧毁) many people’s hopes to be rich.