9．He fell into the river. ________(fortunate), he got drowned.

　　解析：副词作状语。unfortunately 不幸地。

　　答案：Unfortunately

　　10．We live in an area ________ the air is fresh.

　　解析：先行词为地点名词，定语从句中缺状语，故用 where 引导。

　　答案：where

　　Ⅲ.语法填空

　　The Underwater World is a new park, __1__ is located on a beautiful port of the sea front, ten kilometres __2__ the city centre. On the one hand, there are several good __3__ (thing) about Underwater World.

　　It has modern buildings and some of the __4__ (late) technology. It also has some __5__ (excite) things to see. __6__， it has an excellent picnic area.

　　__7__ the other hand, some things are not so good. The pool for the dolphins is very small and generally there are too many animals in a small area. What's __8__， there are problems __9__ the sound in the virtual reality show.

　　If you go to Underwater World, __10__ (especial) during the summer vacation, you'd better take your own food and use the picnic area.

　　答案与解析

　　1．which　which 引导非限制性定语从句，在从句中作主语。

2．from　from 离......。