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 ...

高中英语必修四Unit1教案reading

   课堂教学设计 课 题: Reading: A student of African wildlife 日 设计内容 授课时数 2 日期:2011 年 4 月 设计 要素 教学 内容 分析 The reading passage titled “A student of African wildlife” briefly describes a day of Jane Goodall and her colleagues in the forest deserving the chimps. ...

新目标英语八年级下册 Unit 1 Reading

   Section 1 Before You Read PAIRWORK 1a Tell your partner what you know about robots. Describe your idea of a robot. Say what it looks like and what it can do. 1b Read the title of the passage. Then circle the words and phrases you think you will rea ...

高中英语必修3Unit3电子教案reading

   课堂教学设计 课 题:Extentive reading-The Million pound bank note 授课时数 日期:2011 年 3 月 24 日 设计 要素 设计内容 In this period, we will mainly deal with the part reading .The purpose of this 教学 内容 分析 part of the Unit is to continue the play and give students opportuni ...

高一英语必修4 Unit1 reading

   Unit 1 Women of achievement Karl Marks Shakespeare Thomas Edison Madam Curie Confucious Premier Zhou Warming up: 1. Who is your hero/heroine? 2. Who do you admire most in your heart ? Why? 更多资源xiti123.taobao.com 更多资源 3. Do you think he/ she is a gr ...

高一英语下册Unit3 reading 2

   Welcome to the age of IT! Imagine what android can do in our life ? Android/Robot waiter fire-fighter singer/ hostess Tell your partner what the androids are ? What can they do ? They work as… They can…and… What ? Where ? Looks . Cook / strange hea ...

高一英语(上)必修二Unit 3reading

   Unit 3 Computers Welcome abacus be used for calculating calculator be used for calculating be used to solve mathematical problems huge computer guess It has a big face with many keys It can download information It has two big ears which can play mu ...

高一英语外研版 必修2 Module3 reading课件1

   Module 3 Music Reading and vocabulary Brief out some useful Find introduction words (3min)and phrases is known as changed…into…a large orchestra Haydn The father of the symphony 交响乐之父 had musical talent from a very early age 35 years, more than 600 ...

高中英语必修四Unit1教案warming-up and pre-reading

   课堂教学设计 课 题:Warming-up 日期:2011 年 5 月 设计 要素 日 设计内容 This is the first teaching period of this unit. Warming-up is the part that 教学 内容 分析 connects unit5 to this unit. The rules concluded in the earlier unit can be applied here to identify great women. ...

热门内容

英语自然拼读法基本规则

   自然拼读法基本规则: 1. 二十六个字母的读音 (Letter Sounds). 五个元音字母(a, e, i, o, u), 每个发两种音:长音(其字母音)和 短音 y 不在单词开头时,一般被看做元音 2. 单元音单词拼读 (Consonant-Vowel-Consonant Combinations) 如果一个英语单词或音节里只有一个元音, 且元音不在末尾,这个 元音一般发短音. 如: Sam, cat, mat, 等等. Beginning Consonants Ending Cons ...

2000多个英语常用短语

   1. be able to 能,会 2. abound in 盛产,富于,充满 3. be about to 即将(做) 4. above all 首先,首要,尤其是 5. be absorbed in 专心致力于… 6. be abundant in …富于,…丰富 7. by accident 偶然 8. in accordance with 与…一致;按照,根据 9. according as 根据…而… 10. according to 根据…所说;按照 11. account for ...

英语格言与谚语

   英??格言??? 1.Actions speak louder than words.行R?蒽犊?恰 2.Advice when most needed is least heeded.忠言逆耳。 3.After a storm comes a calm.否iu泰O?。 4.All good things come to an end.花q!百日}(天下q!不散之筵席) 。 5.All roads lead to Rome.h?h?大道通??? 6.All that glitters is ...

新概念英语Lesson15-16

   Gold English Lesson15?16 Lesson15~16 ~ Name Score I believe I can do it best! 我相信我可以做到最好! Ⅰ.把下列列单词变成复数。 1.house 4.is 7.air hostess 10.box Ⅱ.小小翻译家。 1.朋友 4.办公室 7.男孩 10.grey coats 13.blue pens 16.red cars Ⅲ.用 am, is, are 填空。 1.We 2.Our house 3. 4.Here ...

英语搞笑小话剧

   英语搞笑小话剧(彼得与狼) Peter and the Wolf all : I’ll tell you a story. It is “Peter and the Wolf” Peter: Good morning everyone. What a fine day! How beautiful the green lawn is! Bird: Good morning, Peter. Peter: Good morning, Bird. Bird: It’s a fine morning ...