必修三unit 4 using language.pptVIP

Homework Read the passage Caught by a black hole on page 66 and finish the exercise. * Unit 4 Astronomy : the science of the stars A Warming up 1. What is astronomy? 2. What do you know about it? Step 1 The Solar system 水星 地球 金星 火星 木星 土星 海王星 天王星 冥王星 Step 2 1. Do you want to visit these planets? 2. If you do, which one would you like to go most? Why? Discuss the two questions with your partner and try to make a dialogue. (pair work) A: Which planet would you like to go most? B: I’d like to visit…most because… What about you? A: I want to travel to…very much, the reason is that…/I dream about flying to… Useful structures for your dialogue: (1)Who was the first person landing on the moon? A. Armstrong B. Yang liwei C. Tom Cruise D. Issac Newton Multiple choice (2)Which country is he from? A. China B. Russia C. the U.S.A D. England (3)When did he land on the moon? A.1921 B. 1969 C. 2003 D. 2010 (4)What was the name of his spaceship? A. Apollo 11 B. Changzheng 3 C. Shenzhou 7 Step 1 A Pre reading “one small step for a man, one giant leap for mankind”. Neil Armstrong (1930 – ), USA. He landed on the moon in July 1969. “这是个人迈出的一小步，但却是人类迈出的一大步 。” Step 1 Read the passage quickly and try to find the topic sentence of each paragraph. A While reading The force of gravity would change four times on their journey . ( ) 2. When they were on the moon, they would not feel the gravity because there was no gravity on the moon. ( ) 3. Since the gravity has changed, their walk didn’t need a lot of practice. ( ) 4. “A visit to the moon” was not a real story but science fiction .( ) 5. Their returning to the earth was frightening. ( ) F F F T T Step 2 Read paragraph 2 carefully and try to find out the three ways that the gravity changed during their journey to the moon. (Underline the key