九年级上册共56篇
《English is widely spoken throughout the world》SectionB PPT-第一PPT
《I'm excited about the things that will be discovered in the future》SectionB MP3音频课件-第一PPT
《The population in developing countries is growing faster》SectionB MP3音频课件-第一PPT
《All these problems are very serious》SectionB MP3音频课件-第一PPT
《When was it invented?》SectionD PPT-第一PPT
《English is widely spoken throughout the world》SectionB MP3音频课件-第一PPT
《Pollution has caused too many problems》SectionD PPT-第一PPT
《The population in developing countries is growing faster》PPT课件(第2课时)-第一PPT
《I'm excited about the things that will be discovered in the future》SectionD MP3音频课件-第一PPT