The listening passage is about environmental protection.

听力短文是关于环境保护的。

同一单元的其他句子

• The basic listening test starts at nine o'clock.基础听力测试九点开始。
• Please listen carefully to the short conversation.请仔细听这段简短的对话。
• She can understand the main idea of the passage.她能理解文章的大意。
• Did you hear the key words in the recording?你听到录音中的关键词了吗？
• The teacher will play the audio twice for you.老师会把音频播放两遍。