Unit 13
The Water planet
更多资源xiti1
  23.taobao.com 更多资源
The earth is a water planet.
What percentage of the earth is covered by water?
About 75 %
99 % of the living space on earth is in the oceans.
How many species are there in the oceans?
There are about five million species, ranging from the tiniest plankton to giants like sharks and whales
makes the ocean such a great place to live in.
Structure of the passage
How is the text organized?
Para.1
Marine life
chemical salinity Density Heat structure Capacity
Ocean motion
Para.2 Para.3 Para.4 Para.5 Para.6 Para.7 The importance of protecting water
READING:
Finding Topic Sentences
Topic Sentence of the text: Paragraph: 7 Sentence: Learning about the properties of water helps us understand life on our planet. Topic Sentence of CHEMICAL STRUCTURE: Paragraph: 2 Sentence: The chemical structure of water makes it an excellent medium for life. Topic Sentence of SALINITY: Paragraph: 3 Sentence: The salinity of the earth's oceans is about thirtythirty-five parts per thousand, meaning that there are about thirty-five grammes of dissolved thirtysolids and gases in one kilogramme of water.
Topic Sentence of DENSITY: 4 Paragraph: Sentence:The density of pure water is 1,000 kg/m3, meaning that one cubic metre of water weighs one thousand kilogrammes. Topic Sentence of HEAT CAPACITY: Paragraph: 5 Sentence: Heat capacity is the mount of energy it takes to raise the temperature of a substance by one degree centigrade. Topic Sentence of OCEAN MOTION: Paragraph: 6 Sentence: Since changes in salinity and temperature affect water's density, the water in the ocean is always moving.
Careful reading
True or false
1 There are about five billion species in the oceans ranging from the tiniest plankton to giants like sharks and whales. (F ) billion million 2 The water molecule is made of two hydrogen atoms and one oxygen atom. (F )
made of made up of
3 Pure water has a higher freezing point and is lighter than salt water. (T ) 4 If a substance has a density 888kg/ m3, it will float on Water. (T) 5 The heat capacity of water is relatively high, so that most animals don’t like living in it . (F ) 6 The most important thing we can learn about water, is that we must protect it and use it wisely. ( T)
Paragraph
  2.
*It is made up of& 2 hydrogen Atoms 1 oxygen atom *The water molecule is polar *It has a slightly positive and a slightlyend. negative *The normal state of water is liquid Paragraph
  3. dissolved gases sea water (salt water) = + + pure water dissolved solids weight *The salinity of sea water affects: freezing point and √ 35‰ salinity of sea water: 35%
Paragraph
  4. volume mass Factors of density: and
kg/m3 Unit of density: =
kilogrammes per cubic metre 1,000 kg/m3 Density of pure water: = 1 cubic metre of water weighs 1,000 kilogrammes

Paragraph
  5.
relatively high *The heat capacity of water is . *Water canandheat without absorb give off changing temperature the of the oceans.
Paragraph
  6.
How does the water in the ocean move? Dense water sinks and less dense water is pushed to the surface. Paragraph
  7. what Water is makes life possible.
Post?reading
Reading Comprehension
( A )
  1. Based on Para. 1, the author tells us that there are various species in the oceans, indicating that . A. Water plays a great role for marine life. B. Ocean is a good place for life. C. There are many reasons for tiniest plankton and giants like sharks and whales D. Ocean is part of the earth
( C )
  2. The water in the ocean is always moving since . A.The temperature of sea water is relatively high. B. Water’s density affect changes in salinity and temperature. C. Changes in salinity and temperature have effect on water’s density. D. Waters in rivers always flow into the ocean. ( D )
  3.Generally speaking , most animals & plants are to large or suddenly changes in temperature. A.generous B. objective C. subjective D. sensitive
Fill in the blanks Seen from the space, the earth is an planet. Water is very important ocean to life. It is said that life on the planet began oceans in the . Marine life is rich. incredibly Life in the oceans from the tiniest ranges way to giants like whales and sharks . all the up The water molecule made up of 2 is hydrogen atoms and 1 oxygen atom. Water exists in three states. It has a relatively high point. freezing
Consolidation
lower Salt water has a freezing point and is heavier than fresh water. There are manyspecies bottom of marine life. There is life even on the of the deepest oceans. The creatures on the ocean floor manage to survive withoutsunlight and get from other sources energy
Scan and fill in the form: property What is it? What is it good for?
It can break down both solids & gases and good for living things to live in the ocean ,especially...
chemical structure
2 hydrogen atoms and 1 oxygen atom Density is the relationship between mass and volume.
density
It helps small creatures to float.
Property
What is it? It is the amount of energy it takes to raise the temperature of a substance one degree centigrade. It’s the movement of water caused by changes in salinity & temperature.
What is it good for? It keeps the oceans and the earth at a steady temperature
heat capacity
ocean motion
The circulation adds energy to marine ecosystem and moves nutrients around.

  1. Review the properties of water .

  2. Preview Grammar Modal Grammar--Verbs.
更多资源xiti1
  23.taobao.com 更多资源
 

相关内容

高中英语高二英语unit 13reading1

   Unit 13 The Water planet 更多资源xiti123.taobao.com 更多资源 The earth is a water planet. What percentage of the earth is covered by water? About 75 % 99 % of the living space on earth is in the oceans. How many species are there in the oceans? There are a ...

高中英语高二英语unit3 reading

   Unit3 Art and architecture The Temple of Heaven Taihe Dian 更多资源xiti123.taobao.com 更多资源 classical / ancient architecture The Opera House in Sydney Modern architecture 悉 尼 歌 剧 院 鸟 瞰 图 It looks like seashells or ship sails. The Opera House in Paris Wh ...

九年级英语unit11 reading

   Zhang Ming who is from USA is traveling in Shuitou No 1 Middle School. He wants to go to a supermarket hotel/bank… /restaurant/ hotel/bank…. But he doesn't know the way now. What should he do? Hi! Where is the restaurant? Sorry. I can t help can’t ...

高二英语牛津英语模块五unit1 reading

   更多资源xiti123.taobao.com 更多资源 LeadLead-in Do you keep in touch with your friends? Have you ever fallen out with a very good friend? How would you mend a broken friendship? LeadLead-in the reasons leading to a broken friendship having little in common ...

高二英语牛津英语模块6 Unit1 Reading 2 03 reading

   Reading2 Language Points 南京九中 张茹芳 更多资源xiti123.taobao.com 更多资源 1. A stand-up comedian may make fun of an audience member, or he or she might decide to tell different jokes in response to the reactions of an audience. 取笑 People made fun of her becaus ...

英语:unit5 the power of nature-Reading (新人教版选修6)

   高考资源网(ks5u.com) 您身边的高考专家 Reading The power of nature 【学习目标】 知识与能力:学习本单元重点单词短语,掌握文章中出现的重要句式。 过程与方法:阅读获取知识信息为主,提前预习,小组讨论解决问题。 情感态度价值观:了解关于火山的知识,培养探索大自然的兴趣。 【课前自学】 通过阅读课文,完成下列重点短语。 1. 3. 5. 7. out of the way 9. take risks/ a risk 把……和……进行比较 2. 正要、即将要做 ...

中考英语unit11 reading

   Zhang Ming who is from USA is traveling in Shuitou No 1 Middle School. He wants to go to a supermarket hotel/bank… /restaurant/ hotel/bank…. But he doesn't know the way now. What should he do? Hi! Where is the restaurant? Sorry. I can t help can’t ...

牛津高中英语模块七unit1 Reading

   M7 Unit1 Living with technology Lead-in: Science and technology 1. plays an important role in exploring the unknown fields and realizing the dreams of our ancestors(祖先). (祖先) 2.High technology has a direct effect on our life. What electric goods an ...

英语:unit3 《Science versus nature》reading(1)课件(译林牛津版必修5)

   高二年级 英语 Language Points, Unit3, Module5 授课者: 王时亮 授课者 湖南邵阳县第七中学 高二年级2010-2011学年第一学期 学年第一学期 高二年级 A recent announcement by scientists (that they have successfully cloned the first human embryo) has caused much debate and has shocked many people around ...

高一英语牛津英语模块二第三单元模块2 Unit 3 reading 课件

   The curse of the mummy (1st period) 更多资源xiti123.taobao.com 更多资源 1. What is Egypt famous for? 2. What are in the pyramids? (treasures and mummies) 3. Have you ever heard of the curses of the mummies? 1. Go through the Reading Strategy. 2. Fast readi ...

热门内容

上海牛津英语高三(上)U4语法点

   Unit 4 Family Celebrations Planning for the Perfect Wedding 1. registry n. an official list or record of a particular type of thing 登记(册) ;注册(簿) ;挂号 the register of births, deaths and marriages an attendance register 点名册 sign the register 在登记簿上签名 E ...

00089.2009年高考安徽卷(英语)试卷答案(课标)

   姓名 绝密★启用前 座位号 学科网 学科网 年普通高等学校招生全国统一考试(安徽卷) 2009 年普通高等学校招生全国统一考试(安徽卷) 英 学科网 学科网 学科网 学科网 学科网 语 学 科网 学 科网 学 科网 学 科网 本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,第Ⅰ卷第 1 至第 l4 页,第Ⅱ卷第 l5 至第 l6 页。全卷 满分 l50 分,考试时间 l20 分钟。 考生注意事项: 考生注意事项: 1.答题前,务必在试题卷、答题卡规定的地方填写自己的姓名、座位号,并认真核 ...

【Mike绝密,内部资料】新概念英语第二册Lesson_1_课件,大全,经典,合集

   Being Excellent Is What Never Dies Mike Mike 主讲: Mike 有兴趣的可以加我的QQ:290143015 我们可以一起交流英语,互相学习, 交流好的英语课件,交流好的英语口 语!期待你的到来! 新概念英语第二册 Lesson 1 A private conversation Today we fuckin morons will listen to a story about some other fuckin morons in the the ...

考研英语大作文万能模板

   考研英语大作文模板 09 年考研英语大作文模板 考研英语大作文总的说来,比较常考的有两类:一是图表作文;一是图画作文. 从考试的角度来说,比较常考的是图画作文.在此,笔者也是对各位作为一个参考, 帮助各位少走弯路,备战考试. 一,图表作文: 图表作文 ①首段写作:长度适中,描述图表. 如果图表中出现了一个变量,三个数据,可以这样描述: From the chart, we can see that 变量 has increased from less that 数据 to nearly 数据 ...

09级二上大学英语期末考试题型

   09 级二上大学英语期末考试题型 级二上大学英语期末 关于半期考成绩: 关于半期考成绩: 本学期最终成绩为平时 20%+机考 10%+半期考 30%+期末考 40%, 机考 半期考 期末考 , 半期考缺考的同学以半 分计算总分。如半期考有特殊情况,请该生务必尽快到学院教务部( 尽快到学院教务部 期考 0 分计算总分。如半期考有特殊情况,请该生务必尽快到学院教务部(只有辅导员签 章无效)盖章认定后交给任课教师 期末考登分时需夹入教师手册) 注明“ 。 后交给任课教师( 。原因半 章无效)盖章认 ...