2 . 假设你是李华，你讲参加主题为“Global Water Shortage”的英语演讲比赛。请写一份演讲稿，主要内容如下：
1. 全球水资源短缺情况严峻；
2. 水资源短缺的原因（环境污染、人口增长等）；
3. 应对措施（科学的储存未来用水、开发现有水资源使用新方式、节约用水等）。
注意：1. 词数不少于 100；2. 可以适当添加细节，以使行文连贯；3. 开头和结尾以为你写好。
参考用词：资源 resources

Good morning, everyone, I am Li Hua. It’s my great honor to speak here.

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That’s all. Thank you!

3 . 假定你是李华，是校报小记者。请你为校报写一篇英语短文，介绍最近在我国很多城市发生的雾霾天气。请参考以下要点：
1．危害：阻碍交通，危害健康
2．原因：空气污染
3．如何自我防护：雾霾天气早晚少开窗户；多吃水果补充维生素
注意：
1．词数120左右；
2．适当增加细节，以使行文连贯。
参考词汇：雾霾haze                 维生素vitamin
Recently haze pollution has happened in many cities of China. ______________________________________
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