original text
The north wall of the school playground is covered with creepers. My family also has Parthenocissus tricuspidata, which climbs up from the west wall of the yard and occupies a large area on the roof.
The leaves just grown by Parthenocissus tricuspidata are bright red. A few days later, when the leaves grow up, they turn bright green. The tender leaves of Parthenocissus tricuspidata are not obvious, but the mature leaves are obvious. Those leaves are fresh and green and look comfortable. The tip of the knife is facing down, so it is evenly spread on the wall, without overlap or gap. When a gust of wind blows, the leaves on one wall ripple and look beautiful.
Before, I only knew that this plant was called Parthenocissus tricuspidata, but I didn't know how it could climb. This year, I noticed that Parthenocissus has feet. Parthenocissus tricuspidata's feet grow on the stem. Where there is a petiole on the stem, six or seven branches of filaments protrude from the opposite side, each of which is like a snail's antenna. Filaments are as red as new leaves. This is the foot of Parthenocissus tricuspidata.
When Parthenocissus tricuspidata's feet touched the wall, the heads of six or seven filaments turned into small disks, blocking the wall. The filament used to be straight, but now it is bent. Pull the tender stem of Parthenocissus tricuspidata to make it close to the wall. Parthenocissus tricuspidata one step at a time. If you look at those tiny feet carefully, you will think of the dragon's claws in the picture.
If Parthenocissus tricuspidata's foot doesn't touch the wall, it will wither in a few days, and then there will be no trace. Touching the wall, filaments and small discs gradually turn gray. Don't underestimate those gray feet, they are quite stable on the wall. If you don't use your fingers, you can't pull out a ivy rhizome.
Knowledge point 1
Text subject:
This paper describes in detail the growth position of Parthenocissus tricuspidata, its leaves, the shape and characteristics of Parthenocissus tricuspidata's feet, and how it climbed up one foot at a time, expressing the author's love for Parthenocissus tricuspidata.
Classroom questions:
1. Where can we see that the author has observed it carefully?
Observe the leaves of the second Parthenocissus tricuspidata.
New leaves: colors-light red and light green
Growing leaves: color-bright green;
Arrangement-The tip of the blade is straight and uniform.
Observe the foot of Parthenocissus tricuspidata in the third paragraph.
Location: Opposite to the stem where the petiole grows.
Shape: Six or seven filaments branched, like the tentacles of a snail.
Color: light red
◇ Observe how Parthenocissus climbs in paragraph 4.
Climbing the wall: touch, change, pull, stick.
Change: "thin and straight"-"small disk, arc"
The fifth paragraph summarizes the dependence of Parthenocissus tricuspidata's feet on the wall.
Never hit the wall: wither
Hit a wall: firm
Polysyllabic words:
Fresh: xiān flowers Xi m m ? n little known.
C: P on the bed.
Empty: empty
Music: The Song of Curved Q incarnation
New words and phrases:
Tiger: Tiger, tiger, tiger's teeth, tiger's mouth, tiger's mouth can climb mountains.
Fuck: Do a good job, behave yourself and go back to your old job on the playground.
Occupy: occupy, occupy, occupy, occupy, occupy, dominate.
Tender: tender, tender, tender, tender, green, fine-skinned, tender.
Shun: Smooth sailing. Order is smooth and smooth
Average: the average average per capita equilibrium is evenly matched.
Overlap: overlap, overlap, stack, fold, overlap, and then overlap.
Gap: gap, gap, gap, gap, gap, there is no gap available.
Stem: stem, stem, leaf, stem, tuber, withered stem and rotten bone.
Handle: petiole handle, handle of joke axe.
Wither: wither, wither, wither, wither, wither, haggard.
Look: look down on seeing a doctor.
Solid: solid and stubborn.
Antonym:
Pay attention to-ignore fresh-not fresh
Comfortable-uncomfortable bending-straight
Be careful-sloppy and firm-loose
Synonym:
Comfort-comfort and uniformity-symmetry.
Gap-gap intersection
Beautiful-beautiful and careful-serious
Trace-mark gradually-gradually
Quite-very strong-strong
Similarities:
Fuck (playground) noise (noise)
Occupy a station
Comfortable (comfortable) expression (expression)
The stem (rhizome) passes through (passes through)
Withering (withering) Committee (member)
Look haggard (haggard)
Explanation of words:
Uniformity: the same quantity is distributed or distributed in each part and the time interval is equal.
Overlap: To stack (the same thing) on top of each other.
Gap: a small empty place in the middle; A short time that has not been occupied.
Brush: In this article, the wind gently blows over the leaves of Parthenocissus tricuspidata.
Petiole: one of the components of a leaf, connecting the leaf with the stem and being elongated.
Trace: A trace left by an object.
Gradually: gradually.
Quite: high degree of expression.
Firm: strong; Strong.
Knowledge point 2
First, new words: (jūn) Lian (yún) Jiao (jěng) Jiao (bǐng) jiāo)
Words: attention, uniformity, overlap, gap, petiole, antenna, trace, gradient, no way.
Multi-tone characters: empty, heavy and paved
Second, clear your mind.
1. The habitat of Parthenocissus tricuspidata
2. Characteristics of leaves
3. Characteristics of feet: (1) What do feet look like (2) How feet climb (3) The relationship between feet and walls.
Three. Adoption of the text
1. Through the text, we realize that the author's observation method is (careful and long-term continuous observation).
2. Parthenocissus' feet climb like this: when touching the wall, the filament head turns into a disc to block the wall, and the filament turns from straight to curved, pulling the tender stem of Parthenocissus to make it close to the wall.