资源简介

(共20张PPT)
Lesson 13 Revision A
Unit Four Revision I
Let's review
Let's review
Can you read and do
leaves: make food for the plant
fruit: protect seeds
seeds: grow into plants
stems: help the plant stand up; carry food and water to other plant parts
roots: keep the plant in the ground; take in water from the soil
The seeds travel with wind.
The seeds travel with water.
The seeds travel with people and animals.
The seeds travel by themselves.
First, it’s a seed. It needs some soil and water.
Then, it grows out of the soil.
It needs sunlight, air and water to make food.
Little by little, it grows taller and taller. It needs a stick to help stand up.
After a few days, it begins to flower. It needs bees, because they can help it grow fruit.
At last, some little bean pods come out. In the pods, there are the new seeds.
seeds
stems
leaves
clean the air and make us feel happy
show our love and care
give us wood
the leaves of trees can make the air clean
the roots of trees can keep the soil form washing away
Can you do
Let's make a lapbook
about plants.
单项选择
（ ）1. Which part of a plant is in charge of making
seeds
A. Roots B. Flowers
C. Leaves
B
单项选择
（ ）2. Which is a way that seeds travel
A. With wind B. By car
C. With mobile phones
A
单项选择
（ ）3. What can we get from plants
A. Food (like fruits) B. Stones
C. Toys
A
Let's practice
读句子或对话，选择恰当的短语填空。
1. Seeds ______ plants.
2. I’m sorry I ______ the grass.
3. New leaves ______ in spring.
4. Roots ______ water from the soil.
5. Vegetables ______ different parts of plants.
A. take in B. grow into
C. step on D. come out
E. come from
B
C
D
A
E
阅读短文，判断句子正（T）误（F）。
Plants are important to us. We eat different parts of plants. Carrots are the roots. Tomatoes are the fruit. Cabbages are the leaves. Flowers are not only beautiful, but also useful. We can make tea from flowers. Bees get honey from flowers. Trees give us wood and fruit, and they can clean the air. We should protect plants and make friends with them.
( )1. Carrots are the stems of plants.
( )2. Tomatoes are the fruit.
( )3. We cannot make tea from flowers.
( )4. Bees get honey from flowers.
( )5. Trees can clean the air.
F
T
F
T
T
Summary
一、 植物基础认知（部分+功能）
Plants have+植物部分（roots/stems/leaves ...）.
（植物有……部分。）
例句：Plants have roots, stems, leaves, flowers, fruits and seeds.
... (Plant parts) + 功能动词（take in/make/carry...）.
（…… 部分会……）
例句：Roots take in water from the soil./Leaves make food for the plant.
二、 种子与生长（传播+需求）
Seeds travel+方式（with wind/by themselves...）.
（种子通过…… 传播。）
例句：Some seeds travel with wind./Some seeds travel by themselves.
Plants need+生长条件（soil/water/sunlight...）to grow.
（植物生长需要……）
例句：Bean seeds need soil, water and sunlight to grow.
三、来自植物的食物
... are the+植物部分.
（...是...）
例句：Potatoes are the stems./Tomatoes are the fruit.
四、植物的作用
... can .../... can give us ...
例句：Flowers can clean the air and make us feel happy./Trees can give us fruit.
五、建议/禁止做的事情
例句：Plant more trees./Don't step on grass.
口语任务：
熟读背诵U2、U3的课文。
写作任务：
制作植物翻翻书，并向你的同学分享一下。
Homework

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