Unit 4 Lesson 1 Into Space（课件）-2023-2024学年剑桥少儿英语二级下册

INTO SPACE NATIONAL GEOGRAPHIC READING EXPLORER1 1 Astronaut David A. Wolf takes a spacewalk outside the International Space Station. International Space Station Reading Explorer 1 -- Unit 4: INTO SPACE 2 WARM UP Discuss these questions with a partner. 1. What movies or TV shows about space have you seen? Describe them. There are a lot of good movies and TV shows about space! I liked the movie The Martian,where the main character is left alone on Marsand he has to figure out how to survive. 3 WARM UP Discuss these questions with a partner. 2. Do you think there is life in outer space? Why or why not? I think there might be life in outer space, because the universe is so big! universe /ˈjuːnɪvɜːs/ n. 宇宙 4 Reading Explorer 01 Before Reading While Reading Reading Skill 02 03 contents 04 After Reading 5 BEFORE YOU READ The Kepler Space Telescope was sent off into space in 2009. Named after Johannes Kepler—a German astronomer from the 17th century—it discovered over 2,600 planets during its lifetime. As a result, scientists now believe that there are probably more planets than stars in our galaxy . 6 BEFORE YOU READ Kepler Space Telescope (2009) Hubble Space Telescope (1990) James Webb Space Telescope (2021)  telescope /ˈtelɪskəʊp/ n. 望远镜； 7 BEFORE YOU READ  planet /ˈplænɪt/ n. 行星；地球 8 BEFORE YOU READ  galaxy /ˈɡæləksi/ n. 星系；银河，银河系（the Galaxy） 9 BEFORE YOU READ astronomer /əˈstrɒnəmə(r)// n. 天文学家 约翰·开普勒 尼古拉斯·哥白尼 埃德温·哈勃 伽利略 10 BEFORE YOU READ 1. Mars, Jupiter, and Earth are all ________. 2. A(n)________ is a very large group of stars, gas, and dust. 3. A(n)__________ makes distant objects appear closer. 4. A(n)___________ studies stars and other objects in space. A. Read the caption above and match the words in bold with their definitions (1–4). planets galaxy telescope astronomer 11 Check your answer as you read. BEFORE YOU READ B. Skim the passage quickly. What do Shostak and Barnett think? a. We might soon communicate with beings from space. b. We will probably never find intelligent life outside Earth. c. We have probably already contacted beings from space. 12 Reading Explorer 01 Before Reading While Reading Reading Skill 02 03 contents 04 After Reading 13 BEFORE YOU READ BEYOND LIFE EARTH? 14 A Is there intelligent life on other planets besides Earth? For years, scientists weren’t sure. Today, this is changing. Seth Shostak and Alexandra Barnett are astronomers. They believe intelligent life exists elsewhere in the universe.1 They also think we will soon contact these beings.2 Words exist /ɪɡˈzɪst/ v. 存在，实际上有； elsewhere /ˌelsˈweə(r)/ adv. 在别处，去别处 universe /ˈjuːnɪvɜːs/ n. __________ contact /ˈkɒntækt/ n. 联系，联络； being /ˈbiːɪŋs/ n.__________ 宇宙 1 The universe is all of space—all the stars, planets, and other objects. 2 A person or a living creature (e.g., an animal) is a being. Reading Explorer 1 -- Unit 4: INTO SPACE 生物 15 Ask and Answer You can ______ a friend by email or text message. a. contract b. content c. contact 16 Ask and Answer The astronomers Seth Shostak and Alexandra Barnett believe that ______ in communication with life forms from other planets. a. we will never be b. we will soon be c. we have already been 17 B Why do these astronomers think intelligent life exists on other planets? The first reason is time. Scientists believe the universe is about 12 billion years old. Words astronomer /əˈstrɒnəmə(r)/ n. 天文学家 billion /ˈbɪljən/ n./num. 十亿； Reading Explorer 1 -- Unit 4: INTO SPACE dozen n. 一打，十二个； hundred n. 百； thousand n. 一千； million n. 百万； trillion n. 万亿 18 Number a billion and 335 million and 26 thousand 3 hundred and sixty-nine 1335026369 hundred thousand million billion trillion 489 4 hundred and eighty-nine 58 321 58 thousand 3 hundred and twenty-one 1 765 420 a million 765 thousand 4 hundred and twenty 289 million 73 thousand 4 hundred and forty-six 28 973 446 3298129807890 19 B According to Shostak and Barnett, this is too long a period for only one planet in the whole universe to develop intelligent life. The second reason is size—the universe is huge. Words according to prep. 据……所说， whole /həʊl/ adj. 全部的，整个的； size /saɪz/ n. 大小， huge /hjuːdʒ/ adj. 庞大的，极大的； Reading Explorer 1 -- Unit 4: INTO SPACE whole：全部的，整体的。(应放在冠词、指示代词、物主代词之后) all：所有，全部。(要放在冠词、指示代词、物主代词等之前) 全世界: the whole world all the world 20 B Tools such as the Hubble Telescope have shown that “there are at least 100 billion … galaxies,” says Shostak. And our galaxy—the Milky Way—has at least 100 billion stars. Some planets that circle these stars might be similar to Earth. Words tool /tuːl/ n. 工具 circle /ˈsɜːk(ə)l/ v. 盘旋，围绕 be similar to 与……相似 Reading Explorer 1 -- Unit 4: INTO SPACE My opinions are similar to his . What is Milky Way ? 21 Ask and Answer Which of the following is NOT one of the main reasons why Shostak and Barnett believe there is intelligent life in the universe? a. Some of the signals from space may have been sent by intelligent beings b. There are an incredible number of planets in the universe, and intelligent life probably exists on one of them. c. Over the last 12 billion years, intelligent life surely did not arise only on Earth. 22 C Looking for Intelligent Life Until recently, it was difficult to search for signs of intelligent life in the universe. But now, powerful telescopes allow scientists to identify many more small planets—the size of Mars or Earth—in other solar systems.3 Words powerful /ˈpaʊəf(ə)l/ adj. 高效能的 identify /aɪˈdentɪfaɪ/ v.认出，识别； solar systems ____________ Reading Explorer 1 -- Unit 4: INTO SPACE 3.The solar system is made up of the sun and all the planets that orbit around it. 太阳系 23 Ask and Answer According to the reading passage, why was it difficult to search for signs of intelligent life in the past? a. Telescopes weren’t powerful enough. b. The distance between planets was too great. c. There were too few trained astronomers. 24 C Looking for Intelligent Life If these planets are similar to Earth and are close enough to a star, they might have intelligent life. Words enough /ɪˈnʌf/ adj. 充足的，足够的 Enough is enough 适可而止 old enough 年龄足够大 have enough to do 需要全力以赴 Reading Explorer 1 -- Unit 4: INTO SPACE Mike is only 15 years old. He is not ______ to get a driver’s license. A. old enough B. enough old C. young enough D. enough young enough 的位置: 修饰名词很自由，可以置前也可后；修饰形或副，后置一定要记住。 25 D Making Contact Have beings from outer space already visited Earth? Probably not, says Shostak. The distance between planets is too great. Words outer space 外太空 probably 大概;或许 distance 距离 Reading Explorer 1 -- Unit 4: INTO SPACE probably adv. 大概；或许；很可能 possibly maybe 26 D Making Contact Despite this, intelligent beings might eventually contact us using other methods, such as radio signals 4 or flashes of light.5 Words despite /dɪˈspaɪt/ prep. 尽管，即使； despite all that 尽管如此 eventually /ɪˈventʃuəli/ adv.最终 adv. 最后，终于 finally lastly radio signals _______ flashes of light___________ Reading Explorer 1 -- Unit 4: INTO SPACE 4. A radio signal is a way of sending information using radio waves. 5. A flash of light is a sudden, short burst of bright light. 无线电信号 闪电 27 D Making Contact In fact, they could be trying to communicate with us now, but we may not have the right tools to receive their messages. Words try /traɪ/ v. 试图，努力； try to do sth. 尽力做某事 try doing 尝试做… have a try 尝试； let me try 让我试一试 try your best 尽你所能； Try Everything 尝试一切 Reading Explorer 1 -- Unit 4: INTO SPACE 28 Ask and Answer The word they in paragraph D, line 3, refers to ______. a. intelligent beings b. planets in other solar systems c. space scientists 29 Try Everything I won't give up No I won't give in tilI l reach the end, and then I'll start again No I won't leave I wanna try everything I wanna try even though I could fail 30 D Making Contact This is changing, however, says Shostak. He predicts that we will make contact with other life forms in our universe within the next 20 years. Words changing /ˈtʃeɪndʒɪŋ/ adj. 变化中的，改变中的 Reading Explorer 1 -- Unit 4: INTO SPACE 词根：change v. 改变 adj. changeable 无常的；可改变的； changed 改变的；变化的 changeful 易变的；不稳定的 changeless 不变的；；单调的 n. change 变化；找回的零钱 predict /prɪˈdɪkt/ v. 预言，预计 31 spaceship Scientists are hoping to build spaceships that could reach the closest stars. 32 Ask and Answer According to the passage, there are approximately(大约) the same number of ______. a. planets in our galaxy as there are stars in the Milky Way b. stars in our galaxy as there are known galaxies in the universe c. solar systems in our galaxy as there are stars in our galaxy 33 READING COMPREHENSION 1. What is the main purpose of this reading? a. to discuss how life probably started on Earth b. to explain why we might find intelligent life outside of Earth c. to describe what life on other planets might look like A. Choose the best answer for each question. 34 READING COMPREHENSION 2. Which possible reason for the existence of intelligent life is NOT mentioned? a. Some planets that circle stars might be similar to Earth. b. The universe is too old to have just one planet with intelligent life. c. Some other planets in the Milky Way have water. A. Choose the best answer for each question. 35 READING COMPREHENSION 3. According to the reading passage, why was it difficult to search for signs of intelligent life in the past? a. Telescopes weren’t powerful enough. b. The distance between planets was too great. c. There were too few trained astronomers. 4. What does life forms in the last sentence of the passage mean? a. messages b. beings c. planets A. Choose the best answer for each question. 36 READING COMPREHENSION 5. Why does Shostak think we will make contact with intelligent life within the next 20 years? a. We will have better technology to receive their messages. b. Bigger telescopes will identify more planets like Earth. c. Intelligent life will finally receive messages that we send to them. A. Choose the best answer for each question. 37 1. What tool has been used to discover billions of galaxies? _____________________________________________________ 2. Does Shostak think that beings from other planets have visited Earth? _____________________________________________________ 3. Besides radio signals, what else could other life forms use to contact us? _____________________________________________________ READING COMPREHENSION B. Write short answers for these questions. Use information from the reading passage. the Hubble Telescope no,because the distance between planets is too great flashes of light 38 found NASA has found what looks like a large moon orbiting a planet outside our solar system. This could be the first known alien moon. 39 Reading Explorer 01 Before Reading While Reading Reading Skill 02 03 contents 04 After Reading 40 When you summarize a text, you record the main ideas and key details. A concept map can help you organize these ideas in a clear and logical way, and can help you understand information better. In a concept map, the main ideas are linked by words and phrases that explain the connection between them. You can create a concept map by first starting with a main idea, topic, or issue. Then note the key concepts that link to this main idea. The bigger and more general concepts come first, which are then linked to smaller, more specific concepts. READING SKILL A. Look back at Reading A. Find the main ideas and key details in the text. Summarizing: Using a Concept Map 41 READING SKILL A. Look back at Reading A. Find the main ideas and key details in the text. – intelligent life exists elsewhere—first reason is time. The second reason is size. – powerful telescopes – intelligent beings might eventually contact us; they could be trying to communicate with us now 42 READING SKILL B. Complete the concept map below with words or phrases from Reading A. telescopes huge galaxies 12 billion radio signals flashes of light 43 CRITICAL THINKING Speculating Imagine a space station receives a radio signal from another planet confirming intelligent life there. What do you think would happen next? Discuss with a partner and note your ideas. ____________________________________________________________ I think people would be very excited. I think governments around the world would need to work together. Some people would want to make contact immediately, but others would be scared that we could be invaded. 44 Reading Explorer 01 Before Reading While Reading Reading Skill 02 03 contents 04 After Reading 45 reason enough billion whole planet exist tool circle allow identify contact universe distance search powerful VOCABULARY PRACTICE might predict communicate VOCABULARY PRACTICE A. Circle the correct words to complete the paragraph below. Is there life on other planets? Scientists use different methods to try to answer this question. Some use very 1 powerful / whole radio telescopes. They hope to receive messages from intelligent life on distant planets. Other scientists only 2 search / contact for life in our solar system. But they aren’t looking for intelligent life—they want to 3 circle / identify any possible life forms. To do this, they test whether conditions on a planet would 4 allow / contact any kind of life to 5 exist / search. 47 VOCABULARY PRACTICE B. Complete each sentence with the correct answer (a or b). 1. We measure distance in _______. a. kilometers (km) b. kilograms (kg) 2. Some examples of tools are_______ . a. monkeys and dolphins b. cell phones and laptops 3. If you contact someone, you_______ them. a. meet or communicate with b. research and write about 48 VOCABULARY PRACTICE B. Complete each sentence with the correct answer (a or b). 4. If you have lived in a place your whole life, you have lived there ________of your life. a. some b. all 5. If a spaceship circles a planet, it _______the planet. a. goes around b. lands on 49 BEFORE YOU READ The SpaceX Falcon Heavy rocket lifted off on February 6, 2018. 50 VOCABULARY PRACTICE 1. Moon dust can be________ful and can damage our DNA. 2. Astronomers need to be very ________ful with the expensive equipment they use. 3. The Falcon Heavy rocket is extremely ________ful. It can carry a load of 60,000 kg. C. The suffix -ful in powerful means “full of.” Complete the sentences using the words in the box. One word is extra. harm care power care harm power wonder 51 Thanks for Watching 52 Lavf58.20.100 Lavf58.20.100 Lavf58.20.100 null, track 1 2019 148016.42 Lavf58.20.100 Lavf58.20.100 $$