老师：Hello, boys, girls. Nice to meet you. I'm Miss Liu from Hongguang Middle School. Welcome to this lesson. Today we are going to learn Unit 4, life on Mars. Reading too. Boys and girls, we have Learned much about Mars. Now can you say something about Mars? Life on Mars can be challenging. People can take their journey by spacecraft at the speed of light. Food or Mars are not very delicious and maybe in the form of pills. People have to wear boots which are specially designed because of the low gravity.
老师：Life on Mars can be interesting. People would have more living space and have huge comfortable houses and have more time to relax. Students would have lessons at home and many e teachers would help.
老师：Okay, here is a summary about Mars. Can you fill in the blanks? Our own planet earth is becoming more and more crowded and polluted. Hopefully, we can build a better world on Mars by the year 2000. And 100 injured. At present, our spacecraft are too slow to carry large numbers of passengers to Mars. By 2000 and 100, the journey might take only 20 minutes. Spacecraft that travel at the speed of light, food or Mars, would probably be in the form of pills and would not be so tasty as that on the earth.
老师：Gravity could be another problem for people on Mars. The gravity on Mars is only about three eighth of that on the earth. People on Mars have to wear special boots to prevent themselves from floating off into the space.
老师：Okay, check answers. Crowded, polluted Mars. Passengers journey farm tasty 38 boats floating. Okay, our friend Daniel has some questions about Mars. Would you like to answer these questions? Question one, why do some people want to move to Mars? Because the earth is more and more crowded and polluted. Boy skills, pay attention to this word. Pollute verb, polluted adjective, pollution noun. Okay, let's try to fill in the blanks. The pollution on the earth is serious. Many places are very polluted. We should stop polluting our planet. Very good. Now let's come to question two. What are our spacecraft like at present? They are too slow to carry large numbers of passengers to Mars. Large numbers of means, a large number of, a great deal of, plus uncountable nouns. Okay, look at the picture. Can you describe it?
老师：That's really terrible, boys, girls. Now let's come to question three. What would the food most probably be like on Mars? It would most probably be in the form of pills, in the form of, pay attention to this word form.
老师：Here are 3 meanings in the dictionary. Let's read together. Number one, noun type all the way something is or appears to be. 2, now official document with spaces where you have to answer questions and provide information. 3, verb start to exist. Boys, girls, here are four sentences. Can you choo
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