资源简介

(共22张PPT)
Unit 4 Plants around us
PEP·三年级英语上册
Unit 4 Plants around us
Let’s learn & Listen and chant
Part B How can we help plants
schoolgarden
Where is it
Ask and answer
—How can we help
—We can ...
water the flowers
water the grass
plant new trees
Plants need our help to grow well. And natural things are important, too. What natural things(自然事物) do you know
Free talk
sun
water
water
water the flowers
名词：水
动词：浇水
It is everywhere.
And it has no colour and shape.
We can’t smell it, we can’t see it. What is it
A riddle
air
These things are all plants need.
Plants need _____, ______ and ______.
air
water
sun
Look and say
trees
flowers
grass
Sharp eyes
air
grass
flowers
trees
water
sun
Let’s learn
Plants need air, water and sun.
air
sun
trees
water
flowers
grass
Listen and chant
Air, water and sun.
These can all help plants grow.
Plant, water, cut and turn.
These are some things I know.
These
这些
all
所有
grow
增加；生长
cut
切
turn
things
know
知道
事物
转变
Practice
（1）Read after tape.
（2）Do and chant.
（3）Chant with partners.
Look and match
树 sun
水 flowers
花 water
草 trees
太阳 grass
Look, choose and make sentences.
Plants(Trees/ Flowers/ Grass) need ...
Practice
Design your garden and introduce
学生四人一组，一起设计一个花园，花园里面包括植物和植物生长所需要的条件（如水、空气、太阳等），旁边用英文进行标注。画完后向成员介绍，限时2分钟。小组代表将图片展示并简单介绍，学生投票选出优秀小组。
Extension
光合作用
光合作用
绿色植物通过叶绿体，利用光能，把二氧化碳和水转化成储存着能量的有机物，并且释放出氧气的过程。
光合作用的意义
光合作用的意义
光合作用是一切生物生存、繁衍和发展的根本保障。绿色植物通过光合作用制造的有机物不仅满足自身生长、发展和繁殖的需要，而且为生物圈中的其他生物提供了基本的食物来源，其产生的氧气
是生物圈的氧气的来源。
所以，我们要爱护自然，
保护环境，维护生态环境
的平衡和发展。
Summary
sun
air
these
all
grow
cut
turn
things
know
Plants need ...
Homework
1. 抄写单词，三遍英文三遍中文；
2. 听录音，熟练跟读Listen and chant；
3. 查阅资料，画出一种植物的生长日记，
下节课班内展示。

展开更多......

收起↑