(共24张PPT)
Unit 2 Plant a plant!
Unit Review
Grammar
构词法
派生法
所谓派生，即在原词上加前缀或后缀构成另一个与原来词义略有不同或截然相反的词。
后缀
（1） 构成名词的后缀， 常用的有：-er, -or, -ist, -ness, -ment, -tion, -ess, -ing 等。
e.g. illness 疾病；government 政府；
hostess 女主人；meeting 会议
(2)构成形容词的后缀常用的有：
ful , less , able , ous , y 等。
eg：helpful有用的； cloudy 多云的；
enjoyable令人愉快的； dangerous危险的；
careless 粗心的
(3)构成副词的后缀，常用的有： ly。
eg：slow—slowly 缓慢地；
easy—easily容易地
前缀
前缀一般不造成词性的转变，而只引起意思上的
变化，前缀中有相当一部分可构成反义词，常用
的有un-，dis-，im- 等。
e.g. unhappy 不高兴的；dislike 不喜欢；
impossible 不可能的
（1）名词转化为动词
e.g. water 水→ water 浇水 plant 植物→ plant 种植
（2）形容词转化为动词
e.g. cool 凉爽的→ cool 使变凉；冷却 dry 干燥的→ dry 使变干
（3）动词转化为名词
e.g. look 看；瞧→ look 看；瞧 swim 游泳→ swim 游泳
转化法
常见的有名词转化为动词，形容词转化为动词等。
Building Your Vocabulary
Complete the clues and do the crossword.
s
d
1
2
3
4
5
6
7
ACROSS
1. This project is challenging, but it's good
for everyone. If you have time, you
should c it.
5. You should never judge a book by its
c , but should you judge a story
by its title
6. The stone is brown and round. It has a
h in the centre.
over
ole
onsider
DOWN
2. The e sky turned pink as the sun
rose.
3. A g is a place outside. You grow
plants in it.
4. She was supposed to be on a trip. So when I
saw her here, I was s .
7, They have learned English in school.
M of them understand English well.
s
d
1
2
3
4
5
6
7
urprised
astern
arden
ost
Grammar in Use
1. We had a__________(please) journey to England this summer.
2. It is __________(amaze)that this tree laughs when the wind blows.
3. The children are drawing with their__________(colour) markers.
pleasant
colourful
amazing
Ⅰ. Fill in the blanks with the correct forms of the given words.
4. Be________(care)with your handwriting.
5. After the earthquake，they became__________(home) people.
6. They are__________ (happy) about the bad news.
homeless
careful
unhappy
Ⅱ. Write out the words according to the requirements.
1. hope________(adj. ) 2. water________(v. )
3. useful________(adv. ) 4. dirt________(adj. )
5. warm________(v. ) 6. book________(v. )
7. sun________(adj. ) 8. danger__________ (adj. )
9. cover________(v. ) 10. lazy________(adv. )
hopeful
water
usefully
warm
sunny
cover
dirty
book
dangerous
lazily
Listening and Speaking
Ⅰ. Listen and repeat.
1.I drew a picture of my plants.
2.Are they also coming to plant trees
What makes a tree laugh
4.When something touches this plant’s leaves, they close up tightly.
Ⅱ.Listen to the sentences and circle the words or phrases you hear.
1. A. dust storm B. TV channel C. a flower bud
2. A. dry B. shy C. cry
3. A. eastern B. northern C. southern
4. A. at the top of B. in the bottom of C. in the middle of
5. A. by the way B. in a word C. best of all
listening material
1. When there is a dust storm in spring, it gets windy and dirty everywhere.
2. Can a plant be shy When something touches this ant’s leaves, they close up tightly.
3. A lot of rich lands in the northern area turned into desert.
4. This kind plant can only grow in the middle of Africa.
5. By the way, have you met Brian before
Ⅲ. Suppose you are Danny. Bring a photo of a plant to class and talk about it with a partner. Answer the following questions：
1. What kind of plant is it
2. What is it used for
3. Is it important to us
4. How can we protect this plant
The plant is bamboo. In fact bamboo is a kind of grass. It can be used to make kinds of things.
Bamboo can be also food for people and animals. What’s more, it’s good for environment.
Putting It All Together
Ⅰ. Read the passage and answer the questions.
Are Plants Important to All Animals
Plants and animals are living things. All living things need food for energy. Without a way to get energy, they would die. Plants and animals get their food in different ways. A plant uses the energy in sunlight to make food for itself. Without sun or oxygen, small plants would not be able to grow into bigger plants. If you put a seed in the ground and give it water and energy from
the sun, it will grow. It will grow into good food for other living things, mainly animals. Some animals, such as cows and pandas, eat plants. Some animals eat other animals. We call these animals carnivores. Still, plants feed all animals! How Think of a tiger. The tiger eats animals that eat plants. Without plants, the tiger would have nothing to eat.
1. What are living things
2. Do plants and animals get their food in the same way
3. How does a plant make food for itself
4. What do animals eat
Plants and animals are living things.
No, they don't.
A plant uses the energy in sunlight to make food for itself.
Some animals eat plants. Some animals eat other animals.
Ⅱ. How do you plant a plant？Write down your answer and discuss it with your partner.
1. ________________________________________________
2. ________________________________________________
3. ________________________________________________
I plant a seed in a small pot.
I give it plenty of water and it sprouts a few days later.
Soon, it grows a stem and a leaf.
Self-Evaluation
Find more examples from this unit. Then mark your stars.
Ⅰ. Talking about Plants and Gardening
Please remember to put a little water in the bottom of the hole.
_____________________________________________________
_____________________________________________________
I can discuss plants and gardening in English.
☆ ☆ ☆ ☆ ☆
Most plants need a lot of sunlight to grow well.
Plants need water to grow strong and stay healthy.
Ⅱ. Word Building
Plant a plant!
It gets windy and dirty everywhere.
_____________________________________________
_____________________________________________
I know a lot of English prefixes, suffixes and conversion words.
☆ ☆ ☆ ☆ ☆
Gardening is a very enjoyable hobby.
It grows in eastern Asia.
There was a plant. And the plant in the hole,
There was a plant. And the plant in the hole,
A pretty little plant. And the hole in the ground,
A pretty little plant. And the hole in the ground,
The prettiest plant, And the green grass grew all around,
The prettiest plant, All around,
That you ever did see. And the green grass grew all around.
That you ever did see.
Pretty Little Plant
Thank you!
