高二英语课件：高二英语下学期Unit 13 integrating skills
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coming from inland sources;
Provide both recreation and education for human beings.
Education
Recreation
Activity 3 Read the passage and answer the following questions.
The Chemical Structure of water makes it different from almost everything else on earth.
How much do you know about them? Is the economy there well-developed or not?
Nature’s nursery
nursery :place where young children are cared ,
usually while their parents are at work
Estuaries are great places for nature’s young ones.
River
Estuary
Estuary An estuary is the body of water where a river meets the ocean.
Ocean
Fresh water and salt water mixed together.
This mixing creates a unique environment.
Which city is the most developed?
Why?
Can you tell what map it is? Where is it? Is the water here salty or fresh? What’s the place where river and the ocean meet?
1. Why are estuaries such good places for nature’s young ones?
In estuaries, animals can enjoy all the benefits of the oceans without having to face many of its dangers.
Home of thousands Many cities and towns of animals and plants. are built nearby.
Nature’s nursery: Estuaries
Find the definition of an estuary
An estuary is the body of water where a river meets the ocean. Salt water from
3 4
What kinds of function of estuaries have been mentioned in the passage?
Great places for nature’s young animals .
Clean our water by
absorbing nutrients and pollutants from water
Topic Sentence of Paragraph ____4_
Estuaries provide both recreation and education for human beings.
Activity 2. Structure of the passage
1
2 4
ting skills
Chemical Structure
1H2O=2H + O
The water molecule is made up of two Hydrogen atoms and one Oxygen atom.
The way the water molecule is formed gives water unique properties.
Estuaries are the nursery for life in the oceans and rivers.
Activity 1Finding Topic Sentences
Topic Sentence of Paragraph ___1__
As the oceans are the source of life on earth, the estuaries are our planet's nurseries.
Tides provide energy for the ecosystems, but estuaries are protected from waves and storms by islands, mud or sand.
the ocean and fresh water from the river mix together in an estuary. This mixing of fresh and salt water creates a unique environment filled with life of all kinds－a zone between the land and sea.
Topic Sentence of Paragraph ____2_
Estuaries are great places for nature's young ones.
Topic Sentence of Paragraph ____3_
Estuaries are also important because they absorb nutrients and pollutants from water coming from inland sources, thus cleaning our water.
Provide both recreation and education for human beings.
Education
Recreation
Activity 3 Read the passage and answer the following questions.
The Chemical Structure of water makes it different from almost everything else on earth.
How much do you know about them? Is the economy there well-developed or not?
Nature’s nursery
nursery :place where young children are cared ,
usually while their parents are at work
Estuaries are great places for nature’s young ones.
River
Estuary
Estuary An estuary is the body of water where a river meets the ocean.
Ocean
Fresh water and salt water mixed together.
This mixing creates a unique environment.
Which city is the most developed?
Why?
Can you tell what map it is? Where is it? Is the water here salty or fresh? What’s the place where river and the ocean meet?
1. Why are estuaries such good places for nature’s young ones?
In estuaries, animals can enjoy all the benefits of the oceans without having to face many of its dangers.
Home of thousands Many cities and towns of animals and plants. are built nearby.
Nature’s nursery: Estuaries
Find the definition of an estuary
An estuary is the body of water where a river meets the ocean. Salt water from
3 4
What kinds of function of estuaries have been mentioned in the passage?
Great places for nature’s young animals .
Clean our water by
absorbing nutrients and pollutants from water
Topic Sentence of Paragraph ____4_
Estuaries provide both recreation and education for human beings.
Activity 2. Structure of the passage
1
2 4
ting skills
Chemical Structure
1H2O=2H + O
The water molecule is made up of two Hydrogen atoms and one Oxygen atom.
The way the water molecule is formed gives water unique properties.
Estuaries are the nursery for life in the oceans and rivers.
Activity 1Finding Topic Sentences
Topic Sentence of Paragraph ___1__
As the oceans are the source of life on earth, the estuaries are our planet's nurseries.
Tides provide energy for the ecosystems, but estuaries are protected from waves and storms by islands, mud or sand.
the ocean and fresh water from the river mix together in an estuary. This mixing of fresh and salt water creates a unique environment filled with life of all kinds－a zone between the land and sea.
Topic Sentence of Paragraph ____2_
Estuaries are great places for nature's young ones.
Topic Sentence of Paragraph ____3_
Estuaries are also important because they absorb nutrients and pollutants from water coming from inland sources, thus cleaning our water.