(共26张PPT)
Unit 4
Topic 1 What’s the strongest animal on the farm
Section C
本节课在Section A 学习比较级和最高级的用法、Section B谈论动植物的基础上，通过一篇关于热带雨林的阅读文章，给学生传输有关森林的知识，唤起学生的环保意识。同时为Section D学习并保护动物打下基础。本篇阅读也是本话题的重点：学习形容词的比较级和最高级，起到巩固作用。
1. 能正确朗读出单词表中的黑体单词：thick, ground, wet等。
2. 能正确拼读并运用黑体单词：thick, ground, wet等。
3. 能正确使用“比较级and比较级”的形式。
1. 能基本听懂本课文本材料及简单的环保倡议书。
2. 能正确朗读课本的文本材料，并能读懂相关的文本材料。
3. 能写一份简单的有关环保的倡议书。通过对热带雨林的学习，学习从小事做起，从自己做起，保护环境。
知识技能
核心素养
A: Which do you like better, … or …
B: I like … better. I think it’s (cute)
than the dog.
the dog
cuter
the rabbit
A: Which do you like better, … or …
B: I like … better. I think it’s (strong)
than the pig.
the pig
stronger
the cow
earth
n. 地球；土，泥；
rainforest
n. (热带)雨林
forest
n. 森林
ground
n. 地，地面
rainforest
n. (热带)雨林
What do you know about rainforests
Share your ideas about rainforests.
Rainforests are thick forests in the _____ parts of the world. They _____ 6% of the earth’s __________.
hot
cover
surface
覆盖
表面
[ s f s]
six percent
[ k v (r)]
[p s nt]
[θ k f r st] 茂密的森林
It is dark in the rainforests and the ______ (地面) is very _____(潮湿).
ground
wet
Rainforests give us …
food
Rainforests give us …
rubber n. 橡胶
wood n. 木头，木材；woods 树木，森林
Rainforests give us …
Look at the pictures and check which questions the passage can answer.
What are rainforests
How many animals are living in rainforests
Where do animals live in rainforests
What can we get from rainforests
Why are rainforests important to us
Listen to 1a and complete the table. Then check with your partner.
Feature of rainforests in the ______ parts of the world
_______ ground and always ____ and ____ in them
cover ____ of the earth’s _______
give a home to many beautiful ______ and ________
Importance of rainforests make the air _______ and ________
_____ the water and keep the water ______
control the ________
keep the beauty of ________
give us ______, ______, fruit, ________ and so on
hot
wet
dark
hot
6%
surface
plants
animals
fresher
cleaner
hold
cycling
climate
nature
wood
food
medicine
1b
Read and answer the questions.
What does the word “cover” mean in Paragraph 1
Why are rainforests the lungs of the earth
It means “覆盖”.
Because the plants in the forests help to make the air fresher and cleaner.
1c
The plants make the air fresher and cleaner.
They are the lungs of the earth.
They hold the water and keep the water cycling.
They help to control the climate.
They help to keep the beauty of nature.
They give us wood, food, fruit, medicine, and many more useful things.
Rainforests
3. Why should we protect rainforests well
Read and answer the questions.
4. Can you guess what the next part of the passage will talk about
1c
Yes. The next part may talk about what we should do to protect rainforests.
Watch the flash of 1a and retell the passage.
1a
Discussion:
What should we do to protect the rainforests
1. Share your way of protecting rainforests.
2. Write down on a piece of paper.
3. Stick the paper on the blackboard.
Discuss the pictures in groups about how to protect rainforests.
Write a short passage by using linking words, such as first, second, then, next ...
2
Language points:
1. 多数双音节和多音节形容词在前加more和most，表示“比较……”和“最……”,构成比较级和最高级。
如： 原级 比较级 最高级
useful — more useful — most useful
friendly — more friendly — most friendly
interesting — more interesting — most interesting
2. Rainforests cover 6% of the earth’s surface.
cover v. 覆盖 / n. 封皮，封面，封底
e.g. 水覆盖着地球大部分地区。
Water covers most parts of the earth.
cover … with … 用……覆盖……
Please cover the table with tablecloth.
3. Rainforests are becoming smaller and smaller.
“形容词比较级 + and + 形容词比较级” 越来越……
e.g. 天气变得越来越冷了。
The weather gets _________________.
孩子们长得越来越高。
Children become __________________.
colder and colder
taller and taller
Exercises:
A
C
1. This room is ________(big) than that one.
2. That T-shirt looks very ________ (nice).
3. Tom is ___________(tall) of the three boys.
4. Lesson One is _______(easy) than Lesson Two, but Lesson Two
is _____________________(interesting).
5. This question is __________________(difficult) than that one.
6. Roses are ______________________(beautiful) of all the flowers.
bigger
the tallest
nicer
easier
more interesting
more difficult
the most beautiful
Summary:
1. Learn to describe the situation of
rainforests and the importance to the earth.
2. Talk about how to protect rainforests.
3. Useful phrases:
thousands of
control the climate
over = more than
play an important part (in sth.)
smaller and smaller
Homework:
1. Write a short passage about how to protect rainforests.
2. Review Sections A-C to prepare for Section D.
