老师：Hello everyone, I'm Wang Aihong from Tuoli Middle School. Welcome to my class. Today we are going to learn Unit 6, survival, developing ideas, Plan B, life on Mars, reading. Before we move to the reading part, let's see the objectives. No. 1, find out the reasons for humans to live on Mars. No. 2, make correct inferences and get the evidences. Number three, retail the passage simply. No. 4, share opinions about Mars after learning the passage. First, let's talk about something about Mars. Mars is slightly more than half the size of earth with corresponding lower gravity. The atmosphere there is really thin, 100 times thinner than on earth, and it's not breathable. It's 96% carbon dioxide. It's really cold there, and there is quite a range of temperature. A day on Mars is about as long as a day on earth plus about 39 minutes. Seasons and years are twice as long as they are on earth. Since the 1960s, Mars has been the subject of several unmanned exploration missions. However, many of early missions failed. Mars is a long way away, 1000 times farther away from us then the more, you have known so much about Mars.
老师：Now let's complete the quiz about Mars and share the answers. No. 1, Mars is the smallest planet in solar system. A, second, b, third. See? False. The answer is a. Mars is the second smallest planet in solar system. Number two, the surface of Mars is covered in a, rocks, b, water, c, grass. The answer is a, the surface of Mars is covered in rocks. Number three, the average recorded temperature on Mars is I, 40 degrees centigrade, B, 2 degrees centigrade, c, minus 63 degrees centigrade. So the answer, you see, the average recorded temperature on Mars is minus 63 degrees centigrade.
老师：Number four, one day on Mars is about long, 8:00,18 hours, b, 24 hours, c, 37 hours. The answer is B, one day on Mars is about 24 hours long.
老师：Okay, let's go on, predict the main idea according to the title and the pictures. From the pictures, we can see two men, the dry earth and lots of rocks from their special clothes and thick gloves. We can see it's really cold there. Besides, the two men are carrying two heavy boxes from the equipment. And the title, Plan B, Life on Mars. We can guess maybe they are doing some research on Mars. Maybe they want to discover if humans might live on Mars.
老师：Okay, to solve the mystery, let's read the passage and answer the following questions. No. 1, why do people make Plan B? No. 2, what is Plan B? Number three, is it easy for us to live on Mars? Number four, what should we do now? Okay, have you got your answers? Let's chat together. No. 1, why do people make Plan B? Environmental problems have taken over eyes. The greatest risk to life on.
老师：earth you can find it in paragraph one number two 我。
老师：What is
查看隐藏内容
