资源简介

(共32张PPT)
主讲人：XXX
课型：阅读课
Reading 1
Unit 7
The natural world
借助可视化图形，获取并梳理生态系统的基本概念，以及地球上三大生态系统的分布、功能与重要性等相关信息，构建关于语篇的结构化知识;（学习理解）
01
赏析并运用语篇的词汇和句型表达，理解明喻的修辞手法，用所学语言介绍生态系统的基本概念以及地球上三大生态系统的分布、功能与重要性;（应用实践）
02
探讨人类活动对生态环境的影响，增强生态保护的意识。（迁移创新）
03
Revision
01
Pre-reading
02
While-reading
03
Post-reading
04
Summary
05
Language points
06
Exercises
07
Homework
08
Lead in
01
Revision
Can you share some fun facts about ecosystems
Lead in
What kinds of things do you think are in an ecosystem
An ecosystem includes living things like plants and animals and non-living things like air, water, soil and sunlight.
bioloark
Lead in
What do you know about oceans, wetlands and forests
Oceans, wetlands and forests are all important for our earth. They are home to many animals and plants. They help keep the air and water clean, and provide things like oxygen and food for humans.
Lead in
heart
kidney
lung
Pre-reading
02
Pre-reading
What type of text is it
/ k sp z tri/
expository 说明文
What is the article about
It’s about three main ecosystems on earth– oceans, wetlands and forests.
Pre-reading
What can you see in these pictures
dolphins and the ocean
birds and a wetland
trees and a forest
While-reading
03
While-reading
What are the main ecosystems
What is an ecosystem
How important are the ecosystems
While-reading
c,e,i
b,d,h
a,f,g
While-reading
Read and answer
What is an ecosystem made up of
Are ecosystems always large
Are ecosystems important
While-reading
heart
It __________ around 71% of the earth’s surface and__________ about 70% of the earth’s oxygen.
covers
produces
produce_______
support
_______
oxygen
water
cycle
While-reading
While-reading
rise to the sky
fall onto the land
return to the ocean
Water cycle
go on and on
While-reading
kidney
___________ pollution
__________
floods
get rid of
prevent
___________ plants
___________ water
be home to
store
sponge
While-reading
lung
___________
carbon dioxide
__________
oxygen
__________
harmful things
___________
the air
take in
trap
produce
help clean
keep
While-reading
What does each of these ecosystems support
Post-reading
04
Post-reading
ecosystem ocean wetland forest
nickname heart
size 71%
importance 1.________ 2.________ 1.________ 2.________ 1.________
2.________
kidney
lung
6%
1/3
support________________________
the largest
Fill in the table
How do human beings treat our heart, kidney, lung
How should we human beings treat these ecosystems
Summary
05
Summary
借助可视化图形，获取并梳理生态系统的基本概念，以及地球上三大生态系统的分布、功能与重要性等相关信息，构建关于语篇的结构化知识;（学习理解）
01
赏析并运用语篇的词汇和句型表达，理解明喻的修辞手法，用所学语言介绍生态系统的基本概念以及地球上三大生态系统的分布、功能与重要性;（应用实践）
02
探讨人类活动对生态环境的影响，增强生态保护的意识。（迁移创新）
03
What have we learnt today
Language points
06
Language points
Underline language points by yourself.
Exercises
07
Exercises
1.The price for the hotel room is 235 dollars a night, _____________ (include) breakfast.
2.If you know about the ________________ (important) of study, you will work much harder.
3.Cells (细胞) are the smallest and most basic units of____________ (live) matter.
4.About two thirds of the earth's surface _________________ (be) covered with water.
5.If we don't take action to stop ________________ (pollute), there will be less fresh water.
including
importance
living
is
pollution
Homework
08
Homework
Have to do
1. Finish the exercises.
2. Recite the useful expressions on Page 94.
Choose to do
Find out the language points and make new sentences with them.

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