Unit 4 课文精读课件 2023-2024学年高中英语人教版必修第三册

Unit4 Space Exploration paragraph 1 “Are we alone? What's out there？”Looking up at the stars, people have always wanted to learn more about space, and scientists work hard to find answers . They make vehicles to carry brave people into space to find out the secrets of the universe. They also really wish to discover other planets that are suitable enough to support life. 1. Looking up at the stars, people have always wanted to learn more about space, and scientists work hard to find answers. (P40) 本句中有_____个谓语动词，即________________________。 Looking 为_________________________________________; Think and Discuss 一 have wanted -ing分词短语作时间状语 paragraph 2 Before the mid­20th century, most people felt travelling into space was an impossible dream. However, some scientists were determined to help humans realize their dream to explore space. After many experiments, they succeeded in making rockets that could escape Earth's gravity. On 4 October 1957, the Sputnik 1 satellite was launched by the USSR and successfully orbited around Earth. 旅伴一号人造卫星 Afterwards, the USSR focused on sending people into space, and on 12 April 1961, Yuri Gagarin became the first person in the world to go into space. Over eight years later, on 20 July 1969, American astronaut Neil Armstrong stepped onto the moon, famously saying, “That's one small step for [a] man, one giant leap for mankind.” Following this, many more goals were achieved． For example, America's NASA space agency launched Voyager 1 on 5 September 1977 to study deep space, and it still transmits data today. 美国国家航空航天局 旅行者一号 不定式作后置定语的几种情况： 1. 被修饰词是抽象名词（ability, chance, excuse, promise, attempt, belief, way, right等）时; 2. 当被修饰的词前有序数词或the only, the next, the last对其进行修饰时； 3. 被修饰词为形容词最高级或被形容词最高级修饰时； 4. 表示将来的动作常用动词不定式作后置定语。 1. He is always the first (come) and the last_________(leave). 2. I had a chance__________(visit) the Great Wall last month. 3. The most effective way ___________(prevent) the spread of the di