Unit 4 Welcome to the unit +grammar 课件2025-2026学年牛津译林版（2012）英语九年级下册

Unit 4 Life on Mars Welcome to the unit Free talk What will the life in the future be like? What will the life on Mars be like? Life in space What do we need? air tank tent dried food space helmet special boots computer power pack sleeping bag What would it be like to live on Mars? Let’s talk Less gravity No fruit or vegetables No pollution so wear special boots need sleeping bags eat dried food Read the dialogue Listen and answer 1. Where are Hobo and Eddie now? 2. What does Eddie think of life on Mars? Why? They are on Mars. He hates it. Because the helmet prevents him from getting to the food. Read the dialogue 1. 去太空旅行 2. 你认为……怎么样? 3. 我原以为 4. 吃到我的食物 5. 少一些重力 6. 没有污染 travel into space How do you like…? I thought… get to my food less gravity no pollution I. Translate the phrases. Unit 4 Life on Mars Grammar A Answer questions about outer space 1. When did Neil Armstrong receive his student pilot’s licence? He received it when he was 16. He received it at the age of 16. Adverbial clause (conj.) Simple sentence (prep.) 2. Why might people float in space? People might float in space because the gravity is low. People might float in space because of the low gravity. 3. Can humans survive if there is no food, water or oxygen? No, humans cannot survive if there is no food, water or oxygen. No, humans cannot survive without food, water or oxygen. ? Learn more about outer space P56 Rewrite the following sentences: Neil Armstrong took his first flight when he was only six. Yuri Gagarin became the first man to go into outer space at the age of 27. 3. People might move to another planet in the future because the population on the Earth is increasing rapidly. …at the age of six. …when he was 27. because of the rapid increase in population on the Earth. adj.+n. v.+adv. 4. If there is no fresh food, meals will not be as tasty as they are today. 5. It would be funny to play football on Mars because of the low gravity. 6. Without special boots, you cannot walk on Mars. Without any fresh food, meals … …because the gravity is low. If there are no special boots, you… Sentence 1,3 and 4 are adverbial clauses, the other three are simple sentences. B About the planet Mars The smell of the pills reminds them that food on the Earth is tasty. =…reminds them of the tasty food on the Earth. A simple sentence 2. Are they sure that space travel will be very fast? = Are they sure about the fast speed of space travel? An object clause Do exercises at Page 57. 1. Are you aware of the distance from Mars to the Sun? 2. Do scientists agree about / on the possibility for humans to live on Mars in the future? 3. Have they thought about the problem of the low gravity on Mars? 4. Are you aware of the transport on Mars? 5. I wonder about the number of people willing to move to Mars? 6. I think people should know about the differences between life on Mars and that on the Earth. C Curious about Mars People might live in houses which have huge comfortable rooms. A defining relative clause. = People might live in houses with huge comfortable rooms. A prepositional phrase. On Mars you might see people who wear special boots. = On Mars you might see people in special boots. Do exercise C1. 1. Mars is a planet with an environment similar to that of the Earth. 2. Astronauts in space suits and helmets might stay on Mars for hours. 3. It is difficult to breathe on a planet with much thinner air than that on the Earth. 4. On Mars there might be people with air tanks on their backs. that / which has who wear that / which has who carry Do exercise C2. 1. …because of the serious pollution on the Earth. 2. …of the interesting life on Mars. 3. …because the gravity is low. 4. …without playing football. 5. …with the same football fields as those on the Earth. 1.What do you think of life on Mars? 2.Write down your opinions ( five sentences)! 3.Remember the ways to rewrite sentences. 30380.635 21629.414 $