Unit 4 Space Exploration Discovering Useful Structures & Assessing Your Progress 导学案 -2023-2024学年高中英语人教版（2019）必修第三册

Unit 4 Space Exploration: Discovering Useful Structures&Assessing Your Progress导学案 Book 3 Unit 4 SPACE EXPLORATION Discovering Useful Structures&Assessing Your Progress I. Learning objectives In this class, you will be able to 1. know more about space exploration. 2. use the topic words and phrases in context. 3. learn about the fuctions of the infinitive and use the infinitive. II. Activities of Discovering Useful Structures Activity 1 learn about the fuctions of the infinitive Activity 2 Look at the following sentences and focus on the italicised infinitives. In pairs, discuss their functions and meanings. Find more examples from the unit. 1. I trained for a long time to fly airplanes 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. Scientists were determined to realise the dream to explore space. 5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space. Activity 3 Rewrite the sentences using infinitives or “in order to/so as to + do”. Change the italicised parts accordingly. Example 1. In 2003 Yuri Malenchenko became the first person who got married in space. In 2003 Yuri Malenchenko became the first person to get married in space. 2. In space, astronauts collect all dirty water so that it can be recycled for later use. In space, astronauts collect all dirty water so as to recycle it for later use. Practice 3. Mankind has always been curious about the universe and many people have dreamt that one day they would fly into space. 4. Astronauts’ bones and muscles can get very weak in space due to the lack of gravity, so they need to exercise every day, which will help them stay healthy. 5. Astronauts have to use tape to stick everything down while working in space because everything would float off otherwise. 6. During a spacewalk, astronauts have to move slowly so that they can keep their bodies under control. Answer to practice 3. Mankind has always been curious about the universe and many people have dreamt that one day they would fly into space. Mankind has always been curious about the universe and many people have the dream to fly into space one day. 4. Astronauts’ bones and muscles can get very weak in space due to the lack of gravity, so they need to exercise every day, which will help them stay healthy. Astronauts’ bones and muscles can get very weak in space due to the lack of gravity, so they need to exercise every day to/in order to keep their bodies under control. 5. Astronauts have to use tape to stick everything down while working in space because everything would float off otherwise. Astronauts have to use tape to stick everything down while working in space to /in order to/ so as to keep everything from floating off. 6. During a spacewalk, astronauts have to move slowly so that they can keep their bodies under control. During a spacewalk, astronauts have to move slowly to /in order to/ so as to keep their bodies under control. Activity 4 Complete the passage with the correct forms of the verbs in brackets. Sending people to other planets or even beyond the solar system is not an easy goal (achieve). One of the problems is that the trip would take a very long time. For example, (use) current technology, it would take over two years (get) to the closest planet, Mars, and back. Although light is the fastest thing (know) in the universe, it could take more than four years to reach the nearest star system. Will scientists figure out a way (store) sufficient food and water for the long journey? Is it possible to travel faster than light? No one knows the answers yet. However, space scientists never give up. They are experimenting with growing crops in space so as (help) astronauts get enough food on longer journeys through space. Answer to Activity 4 Sending people to other planets or even beyond the solar system is not an easy goal to achieve (achieve). One of the problems is that the trip would take a very long time. For example, using (use) current technology, it would take over two years to get (get) to the closest planet, Mars, and back. Although light is the fastest thing known (know) in the universe, it could take more than four years to reach the nearest star system. Will scientists figure out a way to store (store) sufficient food and water for the long journey? Is it possible to travel faster than light? No one knows the answers yet. However, space scientists never give up. They are experimenting with growing crops in space so as to help (help) astronauts get enough food on longer journeys through space. III. Activities of Assessing Your Progress Activity 1 Fill in the blank with the correct words. agency astronaut data determined intelligent satellite figure out result in Lee was busy at work. Unlike most people around the world though, his workplace was in space. There was a problem with a(n) . It was supposed to send information about the sun back to the on Earth, but the equipment for sending the was not working properly. So it was Lee’s mission to the problem and solve it. Lee was very as a(n) , and he was also very careful. He was to make the satellite work properly again, but he would make sure to be safe. He knew that one small mistake could death. Answer to Activity 1 agency astronaut data determined intelligent satellite figure out result in Lee was busy at work. Unlike most people around the world though, his workplace was in space. There was a problem with a(n) satellite . It was supposed to send information about the sun back to the agency on Earth, but the equipment for sending the data was not working properly. So it was Lee’s mission to figure out the problem and solve it. Lee was very intelligent as a(n) astronaut , and he was also very careful. He was determined to make the satellite work properly again, but he would make sure to be safe. He knew that one small mistake could result in death. Activity 2 Complete the sentences with the correct forms of the words in the box. send survive prevent reach breathe step land sleep use help 1 After having succeeded in satellites into space, people wanted to know if it was safe for a human to go into space. On 3 November 1957, a dog named Laika became the first living thing space. She was also the first one to die there. 2 The USSR and the US both wanted to be the first to send a person to the moon. Later the US succeeded, and Neil Armstrong became the first man onto the moon. During the first moon landing, astronauts had no vehicles , so they had to explore the moon on foot. On the fourth mission on the moon, astronauts took a lunar vehicle so that they could explore places further away. 3 Astronauts must wear spacesuits when they work in space because there is no air and it can be very cold outside the spacecraft. While , they must attach themselves to something so as floating around. 4 The accident on the Apollo 13 spacecraft resulted in a loss of oxygen, water, and electrical power. The astronauts on board had to fight . At the same time. Houston’s Mission Control worked hard the astronauts return to Earth safely. Answer to Activity 2 send survive prevent reach breathe step land sleep use help 1 After having succeeded in sending satellites into space, people wanted to know if it was safe for a human to go into space. On 3 November 1957, a dog named Laika became the first living thing to reach space. She was also the first one to die there. 2 The USSR and the US both wanted to be the first to send a person to the moon. Later the US succeeded, and Neil Armstrong became the first man to step onto the moon. During the first moon landing, astronauts had no vehicles to use , so they had to explore the moon on foot. On the fourth mission to land on the moon, astronauts took a lunar vehicle so that they could explore places further away. 3 Astronauts must wear spacesuits when they work in space because there is no air to breathe and it can be very cold outside the spacecraft. While sleeping , they must attach themselves to something so as to pretend floating around. 4 The accident on the Apollo 13 spacecraft resulted in a loss of oxygen, water, and electrical power. The astronauts on board had to fight to survive . At the same time. Houston’s Mission Control worked hard to help the astronauts return to Earth safely. Activity 3 Reflect What do you think is the most interesting part of an astronaut’s life? Why? What new information did you learn from this unit? Do you find it easier to use English to express curiosity now? Do you feel more confident about writing an argumentative essay in English now? Why or why not? Overall, I thought this unit was/ inspiring/interesting/so-so/difficult. 1 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$