短语、句型：
1. 刘强不仅对家长有礼貌，对他的邻居也很有礼貌。
Liu Qiang is polite to his parents to his neighbors． (短语：not only…but also…)
2. 到会议结束时，他还没有露面。
the meeting was over, he hadn't turned up．(短语：by the time)
3. 北京以其众多的名胜古迹闻名于世。
Beijing its many places of interest in the world.(短语：be famous for)
4. 这是一座多么美丽的城市啊！
the city is!（句型：感叹句How十adj.／adv．+…！）
5. 她花了三个月的时间做这个试验。
It her three months this experiment.（句型：It takes/took sb.+时间／金钱+to do…）
