人教版高中英語必修三《Space Exploration》SectionⅢ PPT課件下載，共24頁。
《Space Exploration》SectionⅢ PPT課件包含語法精講、沖關訓練、長難句分析、應用落實等內容。
不定式作定語和狀語
不定式由“to＋動詞原形”構成，有時to可以省略，其否定形式是“not to do”。不定式沒有人稱和數的變化，但有時態、語態的變化。不定式不能作謂語，但可以作主語、賓語、狀語、表語、定語和補語。本單元主要講述不定式作定語和狀語的用法。
[觀察例句]
1．I trained for a long time to fly airplane as a fighter pilot.
2．As we all know，an astronaut needs to be healthy and calm in order to work in space.
3．First of all，you must be intelligent enough to get a related college degree.
4．Some scientists were determined to help humans realise their dream to explore space.
5．On 12 April 1961，Yuri Gagarin became the first person in the world to go into space.
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關鍵詞：Space Exploration PPT課件免費下載，.PPT格式；
