Introduce the appearance of Parthenocissus tricuspidata's feet in one sentence.

Introduce the appearance of Parthenocissus tricuspidata's feet in one sentence. Parthenocissus tricuspidata's feet are like snail's tentacles. When it hits the wall, the head of the filament turns into a small disk, and the filament is bright red.

Please thank you in one sentence for writing the appearance of Parthenocissus tricuspidata. The leaves just grown by Parthenocissus tricuspidata are bright red. After a few days, the leaves will turn bright green. The young leaves of Parthenocissus tricuspidata are not obvious, but the long leaves are obvious. Those leaves are fresh and green and look comfortable. The tips of the leaves are facing down and evenly spread on the wall, without overlapping and leaving gaps. When a gust of wind blows, the leaves on one wall ripple and look beautiful.

What are the feet of Parthenocissus like the tentacles of snails?

When the author introduced the feet of Parthenocissus tricuspidata, he first wrote about the feet of Parthenocissus tricuspidata.

Write the appearance and color of Ivy's feet first.

Then write how Parthenocissus climbed up.

Finally, the dependence of Parthenocissus tricuspidata's feet on the wall was written.

Summarize the text content of Parthenocissus with a sentence "Parthenocissus feet". This text describes in detail the place where Parthenocissus grows, the shape and characteristics of Parthenocissus leaves and Parthenocissus feet, and how it climbs up step by step.

When the author introduces Parthenocissus for the first time, first, what are the feet of Parthenocissus, and what are the feet of Parthenocissus. The author first introduces the leaf of Parthenocissus tricuspidata, then introduces the foot of Parthenocissus tricuspidata, and finally introduces the wall climbing method of Parthenocissus tricuspidata.

Let's talk about the Parthenocissus in the author's yard first, then the appearance of Parthenocissus, and finally how Parthenocissus climbed up ~j teaching plan is as follows:

Teaching objectives:

1, learn the new words and phrases in this lesson, and be able to recite the paragraphs specified in the textbook.

2. Guide students to consciously use reading methods such as reading paragraphs and paragraphs to read the text.

3. Let the students understand how the author writes a paragraph around a meaning; Continue to cultivate students' habit of paying attention to and carefully observing things.

Teaching focus:

How does the author write a good clip around the characteristics of Parthenocissus tricuspidata?

Teaching difficulties:

How does Parthenocissus climb up step by step?

Teaching preparation:

1, (1) Field observation of Parthenocissus tricuspidata. (2) Write a diary to observe Parthenocissus tricuspidata.

2. Slides.

3. Multimedia courseware: (1) Schematic diagram of the feet of climbing Parthenocissus tricuspidata.

(2) Parthenocissus on the wall.

Class arrangement: two classes.

first kind

Learning objectives:

1, be familiar with the text and get a preliminary understanding of the content of the text;

2. Learn to create new words;

3. Split the text;

4. Understand the growing place, appearance and color of Parthenocissus tricuspidata.

Teaching preparation: 1, field observation of Parthenocissus tricuspidata. 2. Write an observation diary.

Teaching process:

First, introduce the new course:

1, riddle:

(1) Scaffolding, scaffolding, all hung on the green dragon vine. (loofah)

(2) Upper scaffolding, lower scaffolding, strings of pearls hanging on vines. (grapes)

What should we do first if we grow loofah and grapes?

Put up a shelf. Without shelves, loofah and grapes can't grow tall.

2. Introduction:

Students know that grapes and loofah are plants that can be climbed by putting up shelves. Parthenocissus tricuspidata is also a climbing plant, but it can climb very high without putting on airs. Why? Today, we are going to learn the sixth lesson "Parthenocissus tricuspidata's feet".

3. Question the subject.

Second, check the preview: understanding of Parthenocissus tricuspidata;

Third, show your learning goals and read by yourself.

Fourth, learn new words.

1, spelling and sound correction when driving a train. (font emphasis: gap, overflow)

2. Explain the new words.

Five, silent reading and thinking:

1, which natural paragraphs in the text write about the feet of Parthenocissus tricuspidata?

2. subdivision.

3. The group of four will discuss the breakdown and report.

Sixth, the first paragraph of teaching (1 paragraph)

1, silent reading, thinking:

(1) What does this paragraph say?

(2) What do you think are the characteristics of Parthenocissus tricuspidata?

ask questions

Seven, the second paragraph of teaching (the second paragraph)

1. Do you remember what attracted our attention most when we observed Parthenocissus tricuspidata? (Leaves all over the wall) Can you tell me what leaves you see?

Now let's look at how the text is written.

(1) What happened to the leaves of Parthenocissus tricuspidata? When are the leaves concentrated? What words do you see?

(2) Why do you write paragraphs 1 and 2 when the text talks about the feet of Parthenocissus tricuspidata?

(3) Discussion and induction: Write about the feet of Parthenocissus tricuspidata, first introduce the growth place, appearance and color of Parthenocissus tricuspidata, and then introduce the feet of Parthenocissus tricuspidata, so that the article will be organized.

3. Focus on reading sentences 3 and 4.

4. Guide the students to look at the outline on the blackboard and try to recite the second paragraph.

5. Tell me which sentence you like best and which sentence you think is the best.

"Parthenocissus has very small feet. Parthenocissus tricuspidata's feet are quite stable on the wall. " Parthenocissus tricuspidata's feet are small, but they are quite firm on the wall.

Example:

Let's review our lessons together. I will come to your house. You come to my house.

Let's review our lessons together. Either I go to your house or you come to my house.

On Sunday, we review our lessons together. I went to his house and he came to mine.

On Sunday, we review our lessons together. Either I go to his house or he comes to mine.

It will rain tomorrow. The original activity plan goes on as usual.

Even if it rains tomorrow, the original activity plan will continue.

It will rain tomorrow. We will cancel the activity plan.

If it rains tomorrow, we will cancel the activity plan.

It's windy and rainy. We insist on going to school.

Even though it is windy and rainy, we still insist on going to school.

6. He and I are neighbors. I know his family very well.

Because he and I are neighbors, I know his family very well.

We see that the sun is only as big as a plate, but its actual volume is very large.

Although we see that the sun is only as big as a plate, its actual volume is very large.

8. Flowers and trees can beautify the environment. Flowers and trees can prevent soil erosion.

Flowers and trees can not only beautify the environment, but also prevent soil erosion.

9. We listen more and practice more. We can learn Mandarin well.

Only by listening and practicing more can we learn Mandarin well.

An introduction to Parthenocissus is at least 65,438+000 words, also known as Parthenocissus tricuspidata, Parthenocissus tricuspidata, Pseudograpevine, Dragon Bamboo, Maple Vine, Red Silk Grass, Red Grapevine, Parthenocissus tricuspidata and Japanese Ivy. It belongs to Vitaceae and also blooms, but it is small and yellow-green; His berries are purplish red. It often climbs on walls or rocks. It is a large deciduous woody vine. Bark has lenticels and white pith. Strong branches, short tendrils, many branches, and sucker at the top. Leaves alternate, the leaves on the flower branches are ovate in width, 8 ~ 18 cm long and 6 ~ 16 cm wide, and often 3-lobed, or the leaves on the lower branches are divided into 3 leaflets, and the leaves on the young branches are small and often do not split. Cymes are often planted on short branches between two leaves, 4 ~ 8 cm long and shorter than petioles; Spend 5 numbers; Calyx entire; Petal apex reflexed, ovary 2-loculed, with 2 ovules per locule. Berries are small spherical and blue-black when ripe. It blooms in June and bears fruit in September ~ 10. It can dispel wind and dredge collaterals, promote blood circulation and detoxify. Used for rheumatic joint pain; External use of traumatic injury and carbuncle swelling poison.

Also belong to plant cultivation and appreciation are:

Parthenocissus tricuspidata, lobules, 5 pieces. Cymes are opposite to leaves. Produced in Fujian and Guangdong.

Parthenocissus tricuspidata leaves and leaves, with four sides of young branches. Young leaves are green with white spots or purple on the back. Inflorescence conical. Hubei and Shaanxi.

Parthenocissus tricuspidata, lobule, 3 tablets. Cymes. Produced in Sichuan.

The red clover Parthenocissus tricuspidata leaves are smaller and wider, and they are purple when they are young. Cymes are smaller.

Parthenocissus quinquefolia has cylindrical young branches. Small leaves, 5 pieces. Central America.

Parthenocissus tricuspidata, the tender branches and leaves are all purple, and there is white powder on the back of the leaves. Produced in Hubei.

Parthenocissus is also called "Ivy", "Parthenocissus" and "Bashan Tiger". Perennial deciduous vines. Its stem can't grow upward unless it climbs onto other objects. There are tendrils on the stem of Parthenocissus tricuspidata, and there are many branches on the tendrils. At the end of each branch, there is a sucker, which can be attached to the wall, tree or rock. Parthenocissus tricuspidata is so firmly attached to the wall that it is difficult to tear off its stem without great effort. Parthenocissus tricuspidata grows rapidly. If a tree is planted near the wall, its trunk will soon spread to the whole wall. There are many leaves without overlapping, which can make full use of sunlight. The leaf shape changes greatly, the leaves on the base or flower branches are palmately compound, and the leaves on the young branches are single or three leaves. Leaves fall in winter, sprout and grow in spring, and turn yellow or red in autumn. It blooms in May and June and bears fruit in September and June, with blue berries.

Parthenocissus tricuspidata is a plant that can climb walls. Its ability to climb the wall comes from the sucker on its tendrils, just like the gecko's feet. As long as you touch the wall of the house, no matter how smooth the surface of the wall is, the sucker can be firmly attached to it and climb up the wall of more than ten meters until the roof. People use the climbing ability of Parthenocissus tricuspidata. As long as creepers are planted around the house, the whole wall will be covered in a few years, which is equivalent to putting a green coat on the house. In summer, living in such a house with a green coat will be much cooler than ordinary houses, because Parthenocissus tricuspidata forms a shade on the wall, which not only beautifies the environment, but also reduces the temperature of the wall, which is very common in cities.