Unit 4 Discovering Useful Structures 语法课件 -2022-2023学年高中英语人教版（2019）必修第三册

Unit 4 Space Exploration Lead-in 1. Scientists work hard to find answers. Perception 2. They make vehicles to carry brave people into space to find out the secrets of the universe. 3. However, some scientists were determined to help humans realise their dream to explore space. 4. Yuri Gagarin became the first person in the world to go into space. 5. America’s NASA space agency launched Voyager 1 on 5 September 1977 to study deep space. 目的状语 目的状语 定语 定语 目的状语 6. The disaster made everyone sad and disappointed, but the desire to explore the universe never died. 7. China beceme the third country in the world to independently send humans into space in 2003. 8. This signalled one step further in China’s plan to establish a space station in the future. 9. More recently, China has sent Chang’e 4 to explore the surface of the far side of the moon to make measurements and observations. 定语 目的状语 定语 定语 Perception 10. Europe, the US, and China all have plans to further study and explore planets like Mars and Jupiter. 定语 11. Despite the difficulties, scientists hope future discoveries will not only enable us to understand how the universe began, but also help us survive well into the future. 目的状语 Perception s 1. 当修饰的名词是ability, ambition, attempt, chance, courage, desire, decision, effort, failure, moment, promise, right, time, wish … (一些表示企图、努力、愿望、打算、能力等意义的名词) e.g. Please make an effort to catch the bus. He made a promise to come here on time tomorrow. （一）动词不定式作定语的情况 2. 不定式作定语，修饰the first, the last, the third等，中心词为不定时的执行者时用to do（主动），中心词为不定时的承受者时用to be done（被动）。 e.g. The newspaper reporter was the last to walk out of the cave. This is the third question to be discussed. （一）动词不定式作定语的情况 3. 当定语表示未来还没做的动作时。 e.g. The letter to be written is to my father. The matter to be discussed is important. 4. something, anything, nothing, everything 等复合不定代词常用不定式作后置定语。 I’ve grown so crazy about everything to do with nature. （一）动词不定式作定语的情况 5. 不定式作定语也可用在have…to do和there be句型中。 e.g. There is no one to