Unit 4 Astronomy the science of the stars
(、课程解读《(-) 1. Science of the stars(恒星科学)2, The development 话题ofle(命的发展) 3. Space travel and gravity太空旅行和重力 功能 Instructions(指示) 语法 Noun clauses as the subject主语从句) astronomy, atmosphere, system, chain, theory, 重点|gobe, violent, unlike, spaceship, oxygen, 单词 harmful, exist, presence, puzzle, gravity, satellite, climate, crash, pull, float,mass
话题 1.Science of the stars(恒星科学) 2.The development of life(生命的发展) 3．Space travel and gravity(太空旅行和重力) 功能 Instructions(指示) 语法 Noun clauses as the subject(主语从句) 重点 单词 astronomy，atmosphere，system，chain，theory， globe，violent，unlike，spaceship，oxygen， harmful，exist，presence，puzzle，gravity， satellite，climate，crash，pull，float，mass
重点 in time, lay eggs, give birth to, in one's turn, 短语 prevent,omoo, cheer up, now that, break out, watch out 1. What it was to become was uncertain until between 4.5 and 3. 8 billion years ago when the dust settled into a solid globe. 重点 2. This produced a chain reaction, which made it 句型 possible for life to develop bit of practice now that gravity has changed 9 3.“ Oh dear,” I cried,“ walking does need 4. But when I tried to step forward, I found i was carried twice as far as on the earth and fell over
重点 短语 in time，lay eggs，give birth to，in one's turn， prevent...from，block out，cheer up，now that， break out，watch out 重点 句型 1.What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. 2．This produced a chain reaction，which made it possible for life to develop. 3．“Oh dear， ” I cried， “walking does need a bit of practice now that gravity has changed.” 4．But when I tried to step forward，I found I was carried twice as far as on the earth and fell over
()知识与要点) 要点一)重点单词 l. existⅵ存在;生存(无被动式和进行时) 归纳拓展 (1) There exists/existed.某地有……;存在… exist in存在于… exist on靠……生活/生存 (2) existence n.存在;生存 be in existence存在 come into existence开始产生,成立 bring into existence使产生 (3) existent a存在的;现行的
1．exist vi.存在；生存(无被动式和进行时) 归纳拓展 (1)There exists/existed...某地有……；存在…… exist in存在于…… exist on靠……生活/生存 (2)existence n．存在；生存 be in existence存在 come into existence开始产生，成立 bring into existence使产生 (3)existent adj.存在的；现行的
We can't exist without food or water. 没有食物和水我们就不能生存。 I can hardly exist on the wage that I'm getting 我靠我挣的工资简直难以糊口。 When did the world come into existence? 世界是什么时候开始存在的? There exists a good way to solve the existing problem in geography.有一个解决目前地理问题的好办法
We can't exist without food or water. 没有食物和水我们就不能生存。 I can hardly exist on the wage that I'm getting. 我靠我挣的工资简直难以糊口。 When did the world come into existence? 世界是什么时候开始存在的？ There exists a good way to solve the existing problem in geography.有一个解决目前地理问题的好办法