1、学习目标：1. 在理解课文的基础上，掌握文中的重点词汇和短语的用法。 2. 理解应用文中重点句式结构。学习难点： 恰当正确的运用词语及句式。 自主学习一.翻译下面短语 1 太阳系 2及时，总有一天 3 四面八方 4 一团尘埃 5 根据 6 生命的起源7. 下蛋 8.轮到某人9. 阻止10.除。还有。二. 单词拼写 1. With the _ （发展）of economy, peoples living standards are higher now.2. No one knows_ ( 确切的) how the earth began, as it happened so long ago.
2、3.After school, the students run in every _ ( 方向)4. We should _ (把.与结合) work with pleasure.5. In our solar _（系）eight plants circle around the sun.6. Each _(宗教)and culture has its own ideas about how life began on earth.7. _（根据）to the report, the young should care more about the old三句子理解1. However ,
3、according to a widely accepted theory, the universe began with a “ Big Bang” that threw matter in all directions.in all directions = in every direction 向四面八方He walked _ the village. 他向村庄方向走去。. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful
4、gases and acids into the oceans and seas.(1) “What believe”是从句，that引导的是_从句。(2) harmful adj. 有害的；伤害的 归纳拓展 harm n.& vt损伤，伤害do sbharmdo harm to sb_ do more harm than good_It does no harm (for sb)to do sth_harmless adj._ harmlessly adv_ harmlessness n_合作探究It exploded loudly with fire and rockThey were i
5、n time to produce carbon，nitrogen，water vapour and other gases，which were to make the earth atmosphere1) in time迟早，最后；及时相关短语 in no time（） on time（） at times（） at one time（）for the time being（） once upon a time（） from time to time（）2) atmosphere n. 大气；空气;气氛；环境 Completely lost in the exciting_of the f
6、ootball match，Tom didnt feel his pocket picked Ascene Bview Catmosphere Dsight2. What it was to become was uncertain until between 4.5 and 3.8 billion years ago随后它会变成什么没人能知道，直到38亿至45亿年前， “be to+动词原形”的用法归纳： (1)表示按_要做的事。 When are you to leave for home? 你什么时候回家? (2)表示_的事 He was to become a pianist afte
7、r so many years of hard work这么多年的训练之后他注定会成为一个钢琴家。 (3)表示“_”，相当于must，have to. You are to do your homework before you watch TV 看电视之前你得先做完作业。 能力提升短语练习：1. It was almost midnight that a fire （ ）in the neighborhood.2.（ ）you are here, why not have a drink? 3. -Did you catch your plane? -Yes, we got there ju
8、st （）.4. The dish tastes good after it （ ）.5. -Will you go fishing this afternoon? -Well, it all( )the weather.6. After a while I ( ) it and we began to enjoy ourselves.7. The fans ( )when they saw the famous film stars arrive. 8. Country life is quite ( ) city life.9. We should find some ways to (
9、)the harmful gas ( ) spreading. 10. ( ) women cry more easily than men.填写单词：1) The illness is _( 传播) through the village.2)What _（使迷惑）me is why they did not show up.3)By the time they reached the top of the mountain, they were (精疲力尽).4)There is a big underground railway _(系统) in London, which is good for travelers.5).There are two _ _ _(百)people in the hall.