人教新课标高一必修三英语课件：Unit 4 Astronomy：the science of the starPeriod 4.ppt

1、Ex 3 P 28 fundamental, astronomy, gave birth to existed, As a result, atoms, prevents from, puzzle Ex 4 Emotional: violent, angry, rude, shocked, excited, crazy How many subject clauses can you find in the reading passage? 1. What it was to become was uncertain until between 4.5 and 3.8 billion year

2、s ago when the dust settled into a solid globe. 2. The earth became so violent that it was not clear whether the shape would last or not. 3. What is even more important is that as the earth cooled down, water began to appear on its surface. 4. It was not immediately obvious that water was to be fund

3、amental to the development of life. 5. What many scientist believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. 6. Why they suddenly disappeared still remains a mystery. 7. So whether life will continue on the earth for milli

4、ons of years to come will depend on whether this problem can be solved. Subject clauses 主语从句主语从句 Refer to P 90 1)It + be +表语（表语（n. / adj）+ 主语从句主语从句 It is still uncertain whether he is coming or not. It is my honor that I have the chance to meet the great writer. 2) It + 不及物动词不及物动词+ 主语从句主语从句 It happe

5、ns that they were absent. It doesnt matter whether he will come or not. 3)It + be +done +主语从句主语从句 It has been decided that the park will not be open on Mondays. Proofreading Leehom will release his new album excites me a lot. If he is innocent or not depends on the evidence. No matter who doesnt fin

6、ish the homework will be punished. That she did is beyond my imagination. When and where will we meet need further discussion. What his father left him is two houses. That whether Whoever What we will are Translation 1. 随后它会变成什么没人知道，直到3845亿年前，这团尘埃才慢 慢地形成一个固体的球状物。 What it was to become was uncertain

7、until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. 2. 地球变得激烈动荡，不知道这个固体形状是否会继续下去。 The earth became so violent that it was not clear whether the shape would last or not. 3. 更为重要的是，地球冷却了下来，地球表面就开始出现了水。 What is even more important is that as the earth cooled down, wate

8、r began to appear on its surface. 4. 水会对生命的发展起关键作用，这一点在当时并不明显。 It was not immediately obvious that water was to be fundamental to the development of life. 5. 很多科学家相信，由于地球上长期有水存在，它使得地球得 以把有害气体和酸性物质溶解在海洋里。 What many scientist believe is that the continued presence of water allowed the earth to dissolv

9、e harmful gases and acids into the oceans and seas. 6.它们为什么会灭绝至今还是一个谜。 Why they suddenly disappeared still remains a mystery. 7. 在未来的数百万年中，生命能否再地球上延续取决于这个问 题能否得到解决。 So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. 翻译下列的主语从句翻译

10、下列的主语从句 1.随后它会变成什么随后它会变成什么was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. 2. The earth became so violent that it was not clear这个固体形这个固体形 状是否会继续下去状是否会继续下去. 3.更为重要的是更为重要的是is that as the earth cooled down, water began to appear on its surface. 4. It w

11、as not immediately obvious水会对生命的发展起关键作水会对生命的发展起关键作 用用. 5.很多科学家相信很多科学家相信is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. 6.它们为什么会灭绝它们为什么会灭绝still remains a mystery. 7.在未来的数百万年中，生命能否在地球上延续在未来的数百万年中，生命能否在地球上延续will depend on whether this problem can be solved. Ex 2 P 29 Ex 3 Assignment 1.Workbook Ex1,2,4 P63 Ex 1,2 P 64 2. Using language preview Use 5 of the 7 bold-face words to tell the story briefly