内蒙古托克托县第一中学高中英语 Unit 4 Astronomy the science of the stars 学案（无答案）1.Develop students’ reading ability and let them learn different reading skills;2.Get the students to learn the useful new wordsand expressions in this part;3.Enable students to know about the development of the earth.一、Translation1. to begin with 2. in time 3. in one’s turn 4. prevent…from 5. block out 6. break out 7. watch out 8.产生，分娩 9.由于，因为 10.令人迷惑的 11.感到迷惑的 12.在场的 二、Questions:1.Do you know the solar system in the universe? What is it made of?__________________________________2.Can you name the 8 planets?____________________________________3.Which planet do we live on? Can you describe what it looks like?__________________________________4. Is there any life on other planets?___________________________________5.Do you know some religions about how life began on the earth?______________________________________Step 1. First reading1.Read the text, try to tell us the main idea or translate the following words into English. 短文解释了生命如何在地球上开始的。首先，地球爆炸和产生水。因为水的存在，然后植物和动物，包括人类逐渐在地球上出现。1_____________________________________________________________________________________________________________________________________________________________2.Match each paragraph with its main idea Para.1 A .The importance of water for life Para.2 B. The development of plants and animals on the earth Para.3 C. The formation of the earth Para.4 D. A widely accepted theory about the formation of the universe Para.5 E. The arrival of humans and their impact on the earthStep 2. Second readingPut the order of development of life into a timeline1.Insects and amphibians appeared2.Dinosaurs appeared3.The earth became...
