高中英语【云南】同步教案：Unit4（共5课时）（人教新课标必修3）.docVIP

高中英语【云南】同步教案：Unit4（共5课时）（人教新课标必修3） Unit 4 Astronomy: the science of the stars Period 1 and 2: Warming up and reading Warming up: Lead-in Good morning, class! Today, w are going to take Unit 4 Astronomy: the science of the stars. Before we read the text, let’s turn to page 97 and get familiarized with the vocabulary first. Pay attention to the making of the word. Study the prefixes, roots and suffixes in the words. Play a game to learn the names and positions of the planets: Venus is next to Mercury. Earth is the third planet. Mars is between Earth and Jupiter. Neptune is the furthest planet from the sun. Saturn is between Uranus and Jupiter. Mercury is closest to the sun. II. Pre-reading 1. Looking and saying Have you ever wondered how the universe began? Well Im sure you may have many answers to this question, but I have one that perhaps, you may not have heard of yet. I will be giving you my theory on this subject. Now look at the screen and listen to me telling you something exciting. 科学家透露：宇宙可能有两个 我们的宇宙和一个隐藏的宇宙共同镶嵌在五维空间中。在我们的宇宙早期，这两个宇宙发生了一次相撞事故，相撞产生的能量生成了我们宇宙中的物质和能量。 　　 　　 2. Talking and sharing Do you know how the universe began? In the 1920s in California, astronomer Edwin Hubble observed distant galaxies using an extremely powerful telescope. He made two mind-boggling(unbelievable) discoveries. First, Hubble figured out that the Milky Way isn’t the only galaxy. He realized that faint, cloud-like objects in the night sky are actually other galaxies far, far away. The Milky Way is just one of billions of galaxies. Second, Hubble discovered that the galaxies are constantly moving away from each other. In other words, the universe is expanding. The biggest thing that we know about is getting bigger all the time. A few years later, Belgian astronomer Georges Lema?tre used Hubble‘s amazing discoveries to suggest an answer to a big astronomy question: “How did the universe begin?” III. Reading 1. Listening and reading aloud Now please listen to the recording