1、Question: How many questions do you have after first reading? What do you hope to get from reading this? Reading objective 阅读目标阅读目标 1 2 3 About the text features(文本特征）文本特征） Pictures Illustrations 插图、说明插图、说明 Colours Title Bold-face words The title: How Life Began on the Earth The pictures and illustr
2、ations From all above, we can conclude that the passage is mainly about_ the development of the earth and life Lets see how “How” is described? Para. 1 theory, atom What does “that” in “after that” refer to? Para. 2billion, globe, violent, in time, carbon, atmosphere Para. 3 unlike, fundamental, har
3、mful acid, chain 1. dust Big Bang 2. a cloud of _ 3. settled into a solid _ globe 4. exploded with _ fire and rock 5. produced _, nitrogen, water vapour carbon 6. _down cooled 7._ appeared water 8. dissolved _ harmful gases How the earth come into being . Para. 4multiply, oxygen, exist, give birth t
4、o Para. 5thus, in ones turn, dioxide, prevent Para. 4: _ The development of life water plants shellfish & all sorts of fish land plants insects dinosaurs reptiles forests amphibians mammals clever animals 1. Do people take good care of the earth? 2. What do people do to the earth? Can you give an ex
5、ample? 3. Critical reading: “Thus they (people) have, in their turn, become the most important animals on the planet.” Do you agree? Para. 5: The _of humans and their _on the earth. Main idea： arrival impact ( ) 1 Insects and amphibians appeared. ( ) 2 Dinosaurs appeared. ( ) 3 The earth became a so
6、lid ball. ( ) 4 Small plants grew on the water. ( ) 5 Reptiles appeared. ( ) 6 Plants began to grow on dry land. ( ) 7 The earth was a cloud of dust. ( ) 8 Water appeared on the earth. ( ) 9 Shellfish and other fish appeared. ( ) 10 The universe began with a “Big Bang”. ( ) 11 Clever animals with ha
7、nds and feet appeared. ( ) 12 Mammals appeared. 12 1 1 2 2 3 3 5 5 4 4 8 8 6 6 1010 9 9 7 7 11 Put them into a timeline. What does the author want to tell us by the last sentence？ “So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved ” 1) How is the whole passage organized? 2) Which bold faced words serve the title more directly and efficiently(有效地）有效地）? Group Discussion Your questions Homework 1. 作业本作业本2 ； 2. 找出文中所有的主语从句。找出文中所有的主语从句。
