Unit 4《Life on Mars》第3课时 Grammar 课件 译林版英语九下

Unit 4《Life on Mars 》第3课时 Grammar译林版英语九下1.掌握本课重点词汇：aware,circle,agreement,distance,possibility, alien,doubt, stranger等;2.探究学习用介词短语把时间/原因/条件状语从句转换为简单句;3.探究学习用介词把宾语从句转换成简单句;4.探究学习用介词把定语从句转换成简单句。Language goals复合句转换为简单句句型转换01 Review复合句和简单句的转换(二)Lead inWhen I was ten years old, I learned to ride a bicycle.主句时间状语从句引导词She was late for work because there was a traffic jam.主句原因状语从句引导词I learned to ride a bicycle at the age of ten. She was late for work because of the traffic jam.02 Grammar ObserveUsing adverbial clauses or simple sentences.We can rewrite some adverbial clauses in simple sentences with at the age of, because of and without.Neil Armstrong received his student pilot's licence when he was 16. Neil Armstrong received his student pilot's licence at the age of 16.People might float in space because the gravity is low. People might float in space because of the low gravity.Humans cannot survive if there is no food, water or oxygen. Humans cannot survive without food, water or oxygen.时间状语从句原因状语从句条件状语从句介词短语Part A状语从句与 介词短语简单句的转换句型转换(一)GrammarDaniel is writing about visiting another planet. Help him rewrite the sentences using the words in brackets.Learning about outer spacePart A1. Neil Armstrong took his first flight when he was only six. (at the age of) __________________________________________________________2. Yuri Gagarin became the first man to go into outer space at the age of 27. (when) __________________________________________________________3. People might move to another planet in the future because the population on the Earth is increasing rapidly. (because of) __________________________________________________________ __________________________________________________________Rewrite the sentences using the words in brackets.➜ Yuri Gagarin became the first man to go into outer space when he was 27.➜ People might move to another planet in the future because of the rapid increase in population on the Earth. ➜Neil Armstrong took his first flight at the age of six.4. If there is no fresh food, meals will not be as tasty as they are today. (without) ___________________________________________________________5. It would be funny to play football on Mars because of the low gravity. (because) ___________________________________________________________6. Without special boots, you cannot walk on Mars. (if … not ) ___________________________________________________________➜ It would be funny to play football on Mars because the gravity is low.➜ If you do not wear special boots, you cannot walk on Mars. ➜Without fresh food, meals will not be as tasty as they are today.Rewrite the sentences using the words in brackets.I'm proud that I'm a member of this team.主句宾语从句引导词I heard that you got a new job.主句宾语从句引导词I'm proud of being a member of this team.I heard about your new job.ObserveAre they sure that space travel will be very fast? Are they sure about the fast speed of space travel?Using object clauses or simple sentences.We can rewrite some object clauses in simple sentences with prepositions like of and about.宾语从句The smell of the pills reminds them that food on the Earth is tasty. The smell of the pills reminds them of the tasty food on the Earth.Part B介词转化宾语从句为简单句句型转换(二)GrammarMillie knows little about the planet Mars. She is asking Daniel for more information. Rewrite Millie's sentences using the words in brackets.About the planet MarsMillie: (1) Are you aware how far Mars is away from the Sun?Daniel: Yes. Mars is about 142,000,000 miles away from the Sun. It takes Mars about two Earth years to circle around the Sun once.Millie: (2) Are scientists in agreement that living on Mars would be possible for humans in the future?Daniel: No. But they're working hard to learn more about Mars.Millie: (3) Do they think that the low gravity on Mars might be a problem?Daniel: Yes, they do.Millie: (4) Are you aware that transport could be like on Mars?Daniel: It could be much better than that on the Earth. However, scientists aren't sure whether people could grow plants on Mars.Millie: (5) I wonder how many people would like to move to Mars. (6) I think people should know that life on Mars would be different from that on the Earth.Read and finish the task.1. Are you aware _________________________________(distance)?2. Do scientists agree _____________________________(possibility)?3. Have they thought ______________________________________ (problem)?4. Are you aware _________________________________________ (transport)?5. I wonder ______________________________________________________________________________________________ (number).6. I think people should know ______________________________________________________________________________ (differences).of the distance between Mars and the sunabout the possibility of living on Marsabout the low gravity problemof the transport on Mars the number of the people who would like to move to Mars the differences between life on Mars and that on EarthThe house which has a big garden around it is very beautiful.主句定语从句The people who are in trouble need our help.主句定语从句The house with a big garden around it is very beautiful.The people in trouble need our help.先行词先行词Observe People might live in houses which have huge comfortable rooms. People might live in houses with huge comfortable rooms.On Mars you might see people who wear special boots. On Mars you might see people in special boots.Using defining relative clauses or simple sentencesWe can rewrite some defining relative clauses in simple sentences with prepositions like with and in.Part C介词转化定语从句为简单句句型转换(三)GrammarSimon is writing about Mars. Rewrite the defining relative clauses in simple sentences with preposition with or in.Curious about MarsPart CRewrite these sentences .1. Mars is a planet that has an environment similar to that of the Earth. ____________________________________________________________2. Astronauts who wear space suits and helmets might stay on Mars for hours. ____________________________________________________________3. It is difficult to breathe on a planet that has much thinner air than that on the Earth. ____________________________________________________________ ____________________________________________________________4. On Mars there might be people who carry air tanks on their backs. ____________________________________________________________Mars is a planet with an environment similar to that of the Earth.Astronauts in space suits and helmets might stay on Mars for hours.It is difficult to breathe on a planet with much thinner air than that on the Earth.On Mars there might be people with air tanks on their backs.Simon is interested in stories about aliens. He even writes to aliens. Replace each of the underlined parts in his letter with another expression.Curious about MarsRewrite these sentences .Dear aliens,Humans are thinking about moving to another planet (1) because the pollution on the Earth is very serious. Many people do not doubt (2) that life on Mars would be very interesting, but I am not sure. We could not play football on Mars (3) because of the low gravity. Life would be boring for me (4) if I could not play football. Maybe this problem could be solved by building indoor playgrounds (5) which have the same football fields as those on the Earth.By the way, would strangers be welcome? I hope to hear from you soon.Simonbecause of the about because the gravity is low.without playing football.with the same football fields as those on the Earth. the interesting life on Mars. very serious pollution on the Earth.1.Many people are in no doubt that life on Mars would be very interesting. doubt Point doubt 03 Language pointsSummary简单句和复合句之间的转化04 Summary课程结束