Unit: Environmental features

Topic: Plants

Matthayomsuksa 1

CBI

Venus flytraps

Vocabulary

Vocabulary

sepals petals pistil

seeds cluster stamens

pollen grains buds

sepals

petals

pistil

seeds

cluster

stamens

pollen

grains

buds

Structure

To infinitive

The most common uses of the infinitive

For example:

A flower needs sperm in pollen to combine with the flower’s egg.

To indicate the purpose or intention of an action1

To infinitive

The most common uses of the infinitive

For example:

To combine with sperm in pollen makes seeds.

As the subject of the sentence2Subject

To infinitive

The most common uses of the infinitive

For example:

A flower needs sperm in pollen to combine with the flower’s egg to make seeds.

With nouns or pronouns, to indicate what something can be used for, or what is to

be done with it3

To infinitive

After adjectives in these patterns

For example: It is good to grow.

It is + adjective +to-infinitive1

It is + adjective + infinitive + for someone + to-infinitive.

1

2For example: It is easy for bees to see flowers.

To infinitive

After adjectives in these patterns

For example: It is unkind of her to say that.

It is + adjective + infinitive + of someone + to-infinitive.3

The parts of

a flower

QUESTIONS

1. What parts of flower can attract bees, butterflies and birds?

petals

QUESTIONS

2. What parts of flower can make eggs?

pistil

QUESTIONS

3. What parts of flower is the leaf like parts of flower buds?

sepals

Listening

- Make a group of five.- Teacher gives each group 10 number cards.- Teacher turns on the audio from ““The parts of a flower.”- First student of each group have to listen and bring a number card to put in the correct box.- Group of students which gets high point is the winner.

Direction

Reading

The parts of

a flower

Most flowers, like the ones in the pictures on this page, have four parts. Notice the flower buds. The green parts of flower bud are the sepals. They cover and protect the flower growing inside. As the flower grows, it forces the sepals apart. The bud opens into a beautiful flower.

When you look at a flower, you probably notice the petals first. The petals are the colorful parts of the flower. The petals attract bees, butterflies, birds, and other living things.

Notice the five small, knoblike structures in the center of the ring of petals. These structure make up the pistil is the part of the flower that make eggs. The eggs will grow into seeds when they are combined with sperm in pollen.

Now look just below the pistil. You can see the cluster of stamens with rounded tips. The stamens make tiny grains of pollen at their tips. A flower needs sperm in pollen to combine with the flower’s egg to make seeds.

- Make a group of three.

- A representative of each group gets a

paper from teacher.

- Students read text3 (The part of a flower).

- Each group makes a tree diagram from

text3.- Present in front of the class.

Direction

The part of a flower

petals stamens pistils sepals

Speaking

- Make a group of three.- A representative of each group gets a situation from teacher.- Each group creates a role play from situation.- Role play in front of the class.

Direction

1.Situation: Your parents and you have a picnic at the public park today. You want to see a great flower garden in the public park near our home. (petals, sepals)

2. Situation: Your friends and you want to go to China because you want to see a big flower garden there. You saw many colorful flowers and take many photos. (petals, sepals)

3. Situation: On your birthday, your boyfriend/girlfriend gave you a bunch of flowers. He made a flower cake for you. You like it so much and explain about it. (petals, sepals)

4. Situation: Your friends and you go to see a movie which is about flower angels. After that you talk about flowers in the movie joyfully. (petals, sepals)

5. Situation: You want to buy many flowers for decoration on your mother’s birthday. You go to the market and buy many flowers from merchant. (petals, stamens)

6. Situation: The teacher want students make a flower from colorful paper. When they finished making them, they explain about parts of flowers. (petals, sepals)

7. Situation: Your friends and you go to a big forest. You met a big house where is located in the middle of the forest. You came in this house and found wonderful flowers which can speak. (petals, sepals)

8. Situation: Suppose your friends and you were a flower and you want to be the most beautiful color. You explain about your body and explain your friend’s body in bad things. (petals, sepals)

9. Situation: Your friends and you are taking flowers joyfully. And you talk about parts of flower with your friends. (petals, buds)

Writing

- Make a group of three.- Teacher gives each group a paper.- Each group chooses a flower and writes parts of flower and duties of each part.- Present in front of the class.

Direction

pistil

petals

stamens

petals

stamens

petals

petals

petals

sepals