I am urgently looking for the Chinese, Biology, Geography, Politics, and Mathematics test papers for the first semester of junior high school. If you find one, you will get 5 points! The score is 20 points.
Chinese test questions
1. Read the pinyin and write the words. (8 points)
kang kai zu nao shan shuo yan jun shang xin yue mu
( )( )( )( )( )( )( )( )( )( ) ( )( )
bo lan zhuang kuo zhan ding jie tie xuan ya jue bi
( )( )( )( )( )( )( )( )( )( ) ( )( )
2. Choose the correct pronunciation (put a “√” on the correct pronunciation). (5 points)
Knee (xi qi) exposed (lu lou) commensurate (cheng chen)
Move (dan tan) annihilate (qian jian) disgust (wu e) howl ( haohao)
Dig (zao zuo) surge (zhang zhang) force (qiang qiang)
3. Complete the following words. (5 points)
( ) Watching from the sidelines ( ) Seeing things turn upside down ( ) Eliminating disasters ( ) Disasters without energy ( )
Young ( ) Ridiculous and united ( ) Strength ( ) Do your best to refine the troops ( ) and return to Zhao after completing the administration ( )
4. Look up the dictionary and fill in the blanks. (3 points)
1. The word "zhou" is a character with a ____ structure, and the stroke order is _______
2. Use the phonetic sequence search method to look up the uppercase letters of "dang", The radical is ＿＿＿, and the name of the seventh painting is ＿＿＿＿＿; the word "dang" has four meanings in the dictionary: (1) indulgence, unrestrained; (2) clear, lighten; (3) walk around , wandering around with nothing to do; (4) shaking. In the word "cleaning", the first explanation should be chosen.
5. Choose words to fill in the blanks. (6 points)
Battle battle war weather climate
Not only... but also... either... or...
The reason... is because... Although... ...But...
1. The people of the world have achieved a great victory against fascism ( ).
2. Qiu Shaoyun died gloriously in the battle to capture the "391" Highland.
3. June ( ) is getting hotter day by day.
4. Bees ( ) can travel far away, but ( ) their ability to travel far away is not as good as that of birds.
5. He ( ) achieved such excellent results, ( ) because of his hard work.
6. On Sunday, I ( ) read and ( ) listen to the radio.
6. Comprehensive error correction. (5 points)
The scenery here is beautiful. In front of the village is a large pond. The water in the pond is as clear as bright and quiet, with blue sky and white clouds.
Reflecting in the water, there are dots of lotus flowers in the pond; bamboo forests in the mountains Sparrows, thrushes and birds sing to each other, and their songs are crisp and sweet. Behind the village is a green bamboo forest. People who have been here say it is really beautiful.
Beautiful landscape painting.
7. Sentences that are arranged in a disordered manner. (3 points)
( ) There is a small bridge on the river.
( )There is a mountain behind Moon Bay, with pear and apple trees growing on the slopes.
( ) Groups of fish swim in the river, and the clear river water reflects the green mountains, green trees, and small bridges.
（）My hometown is Moon Bay.
( ) There are many peach trees planted on the river bank. In spring, the trees are full of peach blossoms, which look like patches of fiery morning glow from a distance.
( ) There is a crescent-shaped river in front of the village, and the river flows slowly around the village.
8. Fill in the blanks according to the text content. (10 points)
1. The verse that points out the center of the poem "Long March" is "＿＿＿＿＿＿＿,＿＿＿＿＿＿＿＿＿." ("Long March")
2. "＿＿＿＿＿＿＿" ＿＿,＿＿＿＿＿. "Vividly writes the scenery on the river at sunset. ("Ode to the Dusk River")
9. Read the passage and then do the questions.
<1> Moonlight Song (Excerpt)
The shoemaker listened quietly. He seemed to be facing the sea, and the moon was rising from where the water and the sky met. The sparkling sea surface was instantly filled with silver light. The moon rises higher and higher, passing through wisps of veil-like clouds. Suddenly, strong winds blew on the sea and huge waves rolled up. The waves illuminated by the moon were shining brightly towards the shore one after another... The shoemaker looked at his sister, the moonlight was shining on her peaceful face and her wide-open eyes. She seemed to see it too, and saw a scene she had never seen before, the rough sea illuminated by the moonlight.
1. Add Braille to the following words to choose the correct pronunciation.
(1.5 points)
Microwave sparkling (lin lin) wisp (nu lu) tranquility (tian gua)
2. Use "＿＿" to draw real things in the text, use "~~" underlines the content of the association. (4 points)
3. The shoemaker’s first association depicts three pictures, they are (1.5 points)
(1)＿＿＿＿＿＿＿＿＿ (2)＿＿＿＿＿(3) ＿＿＿＿＿＿
4. Why is it said that the blind girl "seems" to have seen scenes she has never seen before? (3 points)
〈二〉＿＿＿＿＿＿＿
The island of Taiwan is beautiful and fertile, and it is the treasure island of the motherland.
The western plain of Taiwan Island is rich in rice and sugar cane. People call it the "rice warehouse" and "sugar warehouse". Fresh fruits are available all year round in Taiwan, with bananas and pineapples being the most produced. Taiwan has always been known as the "Hometown of Fruits".
The island of Taiwan is densely wooded. There are dense layers of coniferous forests in the alpine areas, accounting for 55% of the total area. It is one of the important timber producing areas in my country and is known as the "green treasure house".
In addition to its rich forest resources, Taiwan Island also has many minerals and aquatic products. There are more than 110 kinds of minerals such as oil and gold buried underground. The vast surrounding ocean is rich in aquatic products, with more than 500 species of fish alone, the famous ones being sharks, eels, etc.
The central and eastern parts of Taiwan Island are mountainous. The highest peak is nearly 4,000 meters above sea level, making it the highest peak in eastern my country. There is snow on the top of the mountain in winter, which is so dazzling that it looks like jade from a distance, so it is called Yushan.
Sun Moon Lake is a natural lake on the island. There are small islands in the lake, dividing the lake into Sun Lake and Moon Lake. The water of the lake is clear and the surface is as smooth as a mirror. There are green grass and bright flowers on the shore. Surrounded by mountains, the mountains are green and the mountains and rivers complement each other, attracting many Chinese and foreign tourists to come for sightseeing, and it has become a famous tourist attraction.
Taiwan has been part of our country’s sacred territory since ancient times, and the Taiwanese people are our flesh and blood compatriots. At present, people on both sides of the Taiwan Strait are eager to reunite as soon as possible and realize the peaceful reunification of the country.
1. Add an appropriate title to the essay. (1 point)
2. In the essay, the paragraphs ＿＿＿, ＿＿, and ＿＿＿ are specifically about the richness of Taiwan Island; the paragraphs specifically about the beauty of Taiwan Island are the ＿＿＿, ＿＿＿natural paragraphs. (5 points)
3. In the short article, people praised the island of Taiwan for its rich names such as "rice warehouse", __________, __________, ___________ (3 points)
4. Summary Sixth Natural paragraph (3 points) ＿＿＿＿＿＿＿＿＿＿＿＿
5. Use "～～" to underline the transitional sentences of the article, and use "＿＿" to underline the central sentence of the article. (3 points)
10. Composition: (30 points)
Title: Customized
1. Accumulation and use of language
< p>1. Phonetic notation for the underlined words in the following words: (2 points)bone_______bones, quiet_______, mute_______dumb, haggard_______
2. The following item with typos is ( ) (2 points)
A. The sea is dry and the rocks are rotting, and the panic is vivid in the mind.
B. Sad and misty, hard work and solitary achievement, suddenly enlightened, sparkling water
C. Appalling, tireless in teaching, echoing, wild hazel
D． Staggering, a blessing in disguise, admiration for glory, more than one category
3. The following incorrect explanation of words is ( ) (2 points)
A. Milestone: A metaphor for a major event that can serve as a symbol in the course of historical development.
D. Far away in sight: means that something in the distance is within sight and can be seen.
C. Omen: A sign that appears beforehand.
D. Creator: People believe that God created all things, so they call God the "Creator".
4. Find the correct use of the idiom in the following sentences ( ) (2 points)
A. Everyone echoed the several suggestions made by the teacher.
B. The relationship between their brother and sister is so good that they are almost inseparable.
C. My mother took very good care of my sick grandma, she was so loving and caring
D. He usually works hard, but getting good results this time is self-righteous.
5. Fill in the appropriate blanks with the following four words according to the semantic requirements of the sentence: (2 points)
Shrinking, frightened, desperate and proud
①Of course I achieved complete victory, so _______ walked out , leaving him standing _________ in the hut.
②He stood up _______ very _______, losing color _______.
6． Which of the following sentences has no grammatical errors is ( ) (2 points)
A. Every college student at the Central Academy of Arts and Crafts hopes to become an outstanding artist in the future.
B. Smooth language is one of the important criteria for measuring the quality of a composition.
C. The more accurately people grasp the basic particles that make up matter, the more they can understand the nature of matter, thereby understanding nature and making it serve mankind.
D. In order to avoid making mistakes again, we must study hard.
7. Which of the following statements is wrong ( ) (2 points)
A. Fable, a literary genre, is a story with allegorical or obvious educational significance. It is mostly short in structure and has a
storyline. The protagonist can be a human, an animal, or an inanimate creature.
B. "Two Poems by Guo Moruo" depicts a fascinating heavenly wonderland for us, expressing the author's desire to face the darkness of reality and hope to find a beautiful society in heaven.
C． "Nuwa Creates Man" is just a mythical story, an explanation of how man was created before people mastered scientific knowledge.
D. In the article "The Child and His Shadow", there is a clear spring of love flowing between the lines, which deeply moved us.
8. Which of the following statements is not completely consistent with the original text is ( ) (2 points)
A. If you don’t believe it, please look at that shooting star, it’s them walking with lanterns
B. Gently rocking the small oar returning to the mooring. Autumn game on fish boat.
C． Is there a saying that a person can practice life-long practice?
D. The brother and daughter said: "It's not like catkins blowing up in the wind."
9. Point out how to explain the following sentences (6 points)
①The diameter of the earth is only 3.7 times the diameter of the moon. ( ) ( )
②If the moon is not the wife of the earth, then it is the sister of the earth, or the daughter of the earth. ( )
③People often say: "The east rainbow booms and the west rainbow rains." This means that if the rainbow is in the east, there will be thunder without rain; if the rainbow is in the west, there will be heavy rain. ( )
④ Cirrus clouds float in strands, sometimes like a piece of white feathers, sometimes like a piece of white silk. ( )
⑤When the Yongding River floods, it is very strong, and the embankments on both sides of the river are often washed away, but there has never been an accident to the Lugou Bridge, which shows its sturdiness. ( )
10． Fill in the blanks of literary knowledge (9 points)
①The author of "The Green Grasshopper" is a Chinese entomologist who has written a book.
②The author of "Mountain City" is a Korean writer, and this article is selected from a book.
③"Sophon Suspicious of Neighbors" is selected from . Han Fei, a famous writer of the era. "Sophon Suspicious Neighbor" tells people that "a blessing in disguise" has become an idiom and is often used together with "a blessing in disguise".
④ Tagore is a famous (national) litterateur and has won the Literature Award.
⑤The author of "Quiet Night" is the famous , , and his representative poetry collections are .
11. Write another sentence on the line below, with the same structure as the underlined sentence (3 points)
I love this colorful world. I love red because it is the color of passion, symbolizing loyalty and passion;
... Colorful, this is the life in our eyes.
12. When speaking, you must pay attention to your identity and target to produce good results. Answer the questions that follow based on the context provided below. (2 points)
Student Wang Chang’s academic performance has always been good. However, since the beginning of the school year, he has become obsessed with video games due to the influence of others. He usually talks about games with his classmates, so he invests less in studying and sometimes loses focus in class. Think about the game content. In the final exam, my grades dropped significantly. At this time, he suddenly woke up and felt very sad. He was depressed at home and sometimes lost his temper. Faced with this situation, Wang Chang's mother and classmates were ready to enlighten him. How can their enlightenment be effective? Please write a few words of encouragement for your mother and classmates respectively.
Mom said:
. (1 point)
The classmate said:
. (1 point)
2. Classical Chinese reading
(1) Read "Chen Taiqiu and Youqi" and complete the following questions.
Chen Taiqiu and his friends went on a scheduled trip. During the scheduled period, they did not arrive. Yuan Fang was seven years old and started playing outside his home. The guest asked Yuan Fang: "Is your Majesty here?" He replied: "I haven't seen you for a long time, and you have gone." The friend was angry: "You are not a human being! We behave as expected and agree with each other. "Go." Yuan Fang said: "You and your family are in the middle of the day. If you don't come in the middle of the day, it is untrustworthy; if you scold your father, it is rude." The friend was ashamed and got off the car to lead him. , Yuan Fang didn’t care about getting started.
13． Use "/" to mark the pauses in the following sentences. (1 point)
Yuan Fang Getting Started Regardless
14. Explain the dotted words in the sentence (2 points)
①Chen Taiqiu and his friends went on a trip. ( ) ② Are you here? ( )
③ Let’s go away. ( ) ④ Yuan Fang ignored ( )
15. Translate the following sentences
The past is not achieved, the great hill is abandoned, and the end is achieved. (1 point)
16. How do you understand the saying "If a friend is ashamed, get off the car and draw him away"? (1 point)
17. Is it disrespectful at the end of the article to say "Yuan Fang doesn't care about getting started"? Tell me what you think.
(1 point)
18. What does this story tell us about an important quality of being a human being? Does this still have meaning in modern society? (2 points)
(2) Read "Yong Snow" and complete questions 20-22 (6 points)
Taifu Xie Hanxue gathered inside the house to discuss the meaning of thesis with his children. Suddenly it snowed suddenly, and the Duke said happily: "What does the white snow look like?" Brother Hu'er said: "Spread salt and the difference in the air can be adjusted." Ernu said: "It's not like catkins blowing up due to the wind. "The Duke laughed happily. That is to say, the eldest brother of the Duke has no daughter, and the general of the left, Wang Bangzhi, has his wife.
19． Explain the dotted words. (4 points)
① Mr. Xie Hanxue will gather in the sun ( ) ② The difference in the air can be calculated by spreading salt. ( )
③It snowed suddenly. ( ) ④ Discuss the meaning of literature with your children. ( )
20. Translate the following sentences. (2 points)
①What does the white snow look like?
②Not like catkins blowing up in the wind.
21. Apart from the two metaphors in the text, what do you think "white snow looks like"? As long as you pay attention to the shape, color and falling characteristics of snowflakes, you can use your imagination to find many beautiful metaphors to describe the falling snow. (2 points)
3. Modern reading
(1) Fossil chant
Why didn’t the earliest fish have a chin?
How did the earliest birds have teeth?
Why did the first fish that landed have no legs?
Why don’t the earliest trees bloom?
Can the world that has passed away for thousands of years come back?
Can a stone that has been sleeping for hundreds of millions of years speak?
O fossil that has just awakened from its long sleep underground,
Please tell me the fantastic myth one by one.
You lead my thoughts to ancient times,
paint pictures of biological evolution;
You deny the existence of the Creator,
The cold bones answered the ordinary truth.
Although the body has long since decayed into nothing,
The living spiritual fire is quietly sneaking underground,
The black body contains the message of life, < /p>
Leave a precious code for history.
Time has carved wrinkles on your face,
It is like tracing the archives of life in detail,
The sea dries up, the rocks rot, the sun turns, and the stars move. ...
The ship of life has been marching from ancient times to modern times.
The restored dinosaurs and mammoths seem to be roaring,
The restored ancient forests are so lush and elegant,
Ah, you are so impressive. Nature,
A brilliant magician and an outstanding sculptor!
The world that has been gone for thousands of years has reappeared,
The stone that has been sleeping for hundreds of millions of years has spoken.
O fossil that has just awakened from a long sleep underground,
The story you tell is so fascinating and surprising!
22. What kind of world is the world that has passed away for thousands of years reproduced by fossils? (2 points)
23. Why is it said that "the stone that has been sleeping for hundreds of millions of years has spoken"? (2 points)
24. "The sea dries up, the rocks rot, the sun turns, the stars move..." What does it refer to? Find the appropriate sentences from the poem. (2 points)
25. What does it mean to “leave a precious code for history”? (2 points)
26. What is the relationship between the second and last stanzas? What's so good about writing this way? (2 points)
(2)
①I walked slowly on the road alone. The moon was out and it was cold, and I couldn't help but shiver. There was no sound at all on the road.
There was no sound. Suddenly, I heard someone calling my name. I turned around and saw Wan Fang running over. She put the knife into my hand
and said: "Take it, we are still good friends..."
②I stared at her blankly, unable to stop. Tears shed. Oh, I feel like the saddest person in the world! Because I betrayed my friend. What a disgraceful thing I did!
③But, can this be all my fault?
27. The correct understanding of the moon below is ( ) (2 points)
"I" took back the wood carving and walked on the road, "The moon came out, it was cold, and I couldn't help but shiver." < /p>
A. It was already very late and the weather was relatively cold.
B. To highlight "I"'s sad mood after taking back the wood carving.
C. It highlights my mixed feelings of joy and sorrow after taking back the wood carving.
D. It shows that our friendship is as bright as the moon even though it has cooled down a bit.
28. The correct understanding of the sentence "But, can this be all my fault?" is ( ) (2 points)
A. I am mainly to blame for this incident, but Wanfang is also responsible.
B. Because my parents did not clearly explain to me the value of antelope wood carvings before, this is their responsibility.
C. I should be blamed for going back on my word, but my parents only knew that antelopes are valuable and did not know that friendship is priceless. They forced me to do this, so they should be blamed even more.
D. Wan Fang is mainly to blame for this incident, but I am also responsible.
29. Wanfang's previous "sudden disappearance" and the "sudden appearance" of the selected article hint at her change, from , to . (3 points)
30. What descriptive methods are used in the selected article? What is revealed to us? (2 points)
(2) Read the following text selected from outside class and answer the questions after the text.
Golden Grass
When the dandelions are ripe, this is the happiest day for my brother and I. Often, we would go hunting somewhere—he in front and me behind him.
"Seryozha!" - I called him seriously, and when he turned around, I blew the dandelion down into his face. So he also started to watch me, pretending to yawn and blowing dandelion down into my face. In this way, we always pry off these unattractive little flowers just for fun. But one time, I made a new discovery.
We live in the countryside, and there is a piece of grass in front of the window. Many dandelions are blooming, and the grass has turned golden. It's so beautiful! Everyone said: "The golden grass is so beautiful!" One day, I got up very early to go fishing and found that the grass was not golden, but green. When I returned home near noon, the whole grass turned golden again. I started to pay attention, and the grass turned green again in the evening. I came to the grass and found a dandelion. It turns out that its petals are all closed, just like our hands. When the palm is open, it is yellow. If it is clenched into a fist, the yellow will cover it. In the morning, when the sun rose, I saw the dandelions opening their palms, so the grass turned golden.
Since then, dandelions have become one of our favorite flowers. Because it goes to bed with us kids and wakes up with us.
31． Please use concise language to describe the main content of this article comprehensively and accurately. (2 points)
32. What is the function of the underlined sentence in the second paragraph from the full text? (2 points)
33. Draw sentences from the text that express brotherly love. How do you feel when you read these sentences? (2 points)
34. At the end of the article, it is said that dandelions "sleep with us children and wake up with us." What rhetorical devices are used in the sentence? What is the true meaning of "sleep?" and "get up" by dandelions? (2 points)
< p>35. Did the author always like dandelions the most when he was a child? Try to find some text from the text to explain your opinion (2 points)4. Composition (20 points)
When you were growing up, your relatives were all devoted to you with care and love. Please fill in the name of a relative in the space below (father, mother, grandfather, grandmother, grandfather, grandma). , uncle, aunt, aunt, uncle...), and then write a composition of about 500 words. Me and ______________
1.
1. hái mì yīn qiáo 2 , D 3, D 4, B
5, proud, despairing, terrified 6, D 7, B 8, C
9. ① Make comparisons with numbers ② Make analogies ③ Make explanations ④ Make analogies and ⑤ make comparisons
10. ①Fabrefa's "Insect Story" ②Qing Pu Songling's "Strange Stories from a Chinese Studio"
③"Han Feizi's Difficulties" Treated correctly by thinkers in the late Warring States Period Knowing the opinions of others is not a blessing
④Indian Nobel⑤Poet and scholar Guo Moruo "Goddess" and "Starry Sky"
11, 12,
II.
(1) 13. Yuan Fang/Getting Started/Ignoring
14. Period: Agreement No: Pass “No” Commission: Leave it behind, abandon Gu: Look back
15. After noon, the friend did not arrive, so Taiqiu left without waiting. His friend did not arrive until after Taiqiu left.
16. The friend knew that he was wrong and apologized to Yuan Fang.
17. If you know you are wrong, you should forgive him; you should not blame a seven-year-old child (just mean it)
18. Be honest and reasonable
(2) 19. ① Family gathering ② can almost be compared to ③ a while ④ nephews and nephews, referring to the young people in the family
20. ① What does this heavy snow look like? ② It is better to compare it to catkins in the wind It blew all over the sky
21. Briefly
3.
(1) 22. The restored dinosaurs and mammoths seemed to be roaring, and the trees were lush and elegant. .
23. Because people can find a lot of information from fossils
24. Refers to "the passage of events and the evolution of life"; the corresponding sentence is "the ship of life." The ancient times are constantly marching towards modern times."
25. People can explore the secrets of historical development from the information revealed by fossils, allowing people to explore.
26. Constituting repeated Relationships, the last section answers the questions raised in the second section, emphasizing the information fossils provide us.
(2) 27, B 28, C 29. Psychology; blame "I"; forgive "I"
30. The selected passage focuses on the use of psychological description, revealing the narrow-mindedness and narrow-mindedness of adults. Emphasizing talents over righteousness, not cherishing children's feelings, and causing harm to children's psychology leaves a thought-provoking question.
(3) 31. The article describes how two brothers discovered the strange natural phenomenon of dandelions closing their petals in the evening and reopening at sunrise, and how they fell in love with dandelions ever since.
32． This is a transitional sentence, which serves as a transitional connection between the two content levels of the full text.
33． The sentence that should be drawn is: "I called him seriously, and when he turned around, I blew the dandelion down into his face. So he also started to watch me, pretending to yawn and blowing the dandelion down into his face. I blew it on my face." These sentences describe the scene of fun between brothers and show their childhood sweethearts, unity and harmonious family affection.
34． Personification. When a dandelion goes to sleep, it refers to its petals closing in the evening; when it gets up, it refers to its reopening after sunrise.
35. Not always a favorite of dandelions. At first, it was only when brothers had fun that they picked off "these little inconspicuous flowers"; later, through observation, they discovered the wonderful changes of dandelions. "From then on, dandelions became one of our favorite flowers."
IV. Essay summary
Seventh grade biology test paper (100 points)
1. Multiple choice questions (18 points):
1. Which of the following is not part of biological research ( ):
A. Rapid increase in population; B. Environmental pollution; C. Cancer; D. Volcanic eruption
2 , The basic units of the structure and function of organisms are ( ):
A. Cell; B. Tissue; C. Organ; D. System
3. Play an important role in biological inheritance What it does is ( ):
A. Cell membrane; B. DNA; C. Nucleus; D. Chloroplast
4. The main organ for photosynthesis is ( ):
A. Stem; B. Leaf; C. Blade; D. Chloroplast
5. Among the following statements about the structure and function of plant cells, which one is wrong ( ):
< p>A. Plant cells are the basic structural and functional units of plantsB. Plant cells have cell walls, cell membranes, cytoplasm, and nuclei
C. Most plant cells have chloroplasts and vacuoles
D. The nucleus and cytoplasm of plant cells are separated from each other and are not connected with each other
6. Which of the following substances does not belong to living things ( ):
A. Virus B, river water C, mushroom D, fish
7. Which of the following levels does the tomato fruit consist of ( ):
A. Cell B. Tissue C. Organ D , Substance
8. Among the following plant organs, which ones are reproductive organs ( ):
A. Root B. Stem C. Leaves D. Flower
9. Tomatoes sold on the market belong to ( ):
A. Nutritional organs B. Nutritional tissues C. Reproductive organs D. Protective tissues
10. Organisms can grow from small to large. The main reason is ( ):
A. The volume of cells continues to increase. B. The division and volume of cells increase.
C. The number of cells increases. D. The nutritional status is good. Bad
11. The structural hierarchy of the human body is ( ):
A. Cell → Organ → Tissue → Human body B. Cell → Tissue → Organ → Human body
C. Cell → Tissue → Organ → Human body D. Cell → Tissue → Organ → System → Human body
12. Observe tomato pulp cells for temporary mounting, such as using "10×" eyepieces and "15×" "objective lens, the cells are magnified ( ):
A, 10x B, 25x C, 150x D, 15x
13. Xiao Ming planted 10 grains of rice. There are no seedlings growing in the flower pot. Analyze the possible reasons: ( ):
A. There is insufficient moisture in the soil; B. The outside temperature is too low
C. The seed coat is not there D. The embryo is destroyed
14. The stems and leaves on the ground of the plant develop from the embryo ( ).
A. Embryum B, hypocotyl C, cotyledon D, endosperm
15. When the root is in a state of water loss, the shape of the vacuole ( );
A , unchanged B, getting bigger C, shrinking D, shrinking or getting bigger
16. Which of the following foods are seeds ( )
A. Grapes B. Cucumbers C. Almonds D. Wheat grains
17. Among the following statements about the raw materials for photosynthesis of green plants, the incorrect one is ( )
A. The only raw material for photosynthesis is carbon dioxide;
B. One of the raw materials for photosynthesis is carbon dioxide;
C. Carbon dioxide and water are both used to make starch
D. Carbon dioxide and water are all raw materials for photosynthesis
p>
18. The effective measure to improve photosynthesis efficiency is ( )
A. Highly dense planting B. Increase carbon dioxide concentration C. Increase oxygen concentration D. Increase water 2. Fill in the blanks (12 points) :
1. The basic structure of biological cells includes ( ), ( ), and ( ). The unique structure of plant cells is ( ).
2. Chloroplasts can perform ( ) functions; mitochondria can perform ( ) functions.
3. Green plants provide ( ) and ( ) to humans and animals.
4. Plants absorb ( ) and release ( ) through photosynthesis, affecting the ( ) cycle of the biosphere. Plants also participate in the water cycle of the biosphere through ( ).
3. Analysis questions (70 points):
1. Xiao Chen bought a few oranges from the market and carefully conducted research and analysis: (1) He cut them with a knife Open an orange and a lot of juice will flow out. These juices are ________ and come from ________ in the cell structure. (2) Take an orange and tear off the outer skin with your hands. This outer skin belongs to ________ tissue, the white thread inside the epidermis is , and the pulp part is ________ tissue.
2. Xiao Ming’s uncle buys soybean seeds. Xiao Ming gives his uncle some suggestions based on the knowledge he has learned now: he should choose the best seeds,
If possible, it is best to test the seeds.
According to his suggestion, the uncle bought back two kinds of soybean seeds and asked Xiao Ming to help him decide which variety was better.
Xiao Ming first needs to design a research experiment, and then implement the experiment according to the design.
If you encounter the following phenomenon during the experiment, please explain it to him.
(1) Xiao Ming randomly takes 50 seeds of each variety, puts them into a small bowl, and then puts in an appropriate amount of water. In addition, there must be and external conditions for the seeds to germinate.
(2) Due to suitable conditions, the seeds began to germinate. The first thing to break through the seed coat is what will develop into soybeans in the future: after a while, it is found that white hairs grow on the top of the root tip. These structures are the root tip area, and their main function is to...
(3) After 15 days, 35 grains sprouted in the first bowl and 45 grains sprouted in the second bowl. Which variety should be chosen? Why? (5 points)
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(4) Xiao Ming uses these germinated seeds to continue experiments to see how they will develop in the future.
A. Xiao Ming planted the germinated seeds in a flower pot and placed it on the windowsill. After a while, it was discovered that the seeds sprouted from the soil and grew into , with buds at the top. The seeds inside them could make the plant grow taller. What would happen if Xiao Ming removed the top buds? .
B. During the growth period, Xiao Ming kept watering the plants. This is because;
There are three main types of appropriate fertilization: , , .
C. Once, Xiao Ming took a leaf and cut it crosswise to make a temporary slide specimen. The material must be obtained. When viewed with a microscope, cells with green granules are seen which are parts of the leaf. The epidermis is made of water, which plays a role in sex.
There are many pores on it, which plays a role in sex.
D. When Xiao Ming puts a transparent plastic bag on the plant leaves, water droplets will form after a while. Where do these water droplets come from? .
E. Four months later, the plant blooms, and it still needs and to produce fruits and seeds. The fruits are developed from.
F. Xiao Ming and his classmate Xiao Hong have different opinions. Xiao Ming believes that the stamens are the main part of a flower, while Xiao Hong thinks that the petals are the main part of a flower. Whose view do you agree with? .
G. After harvesting, Xiao Ming weighed the total weight of a plant and found that it was 500 times the weight of the seeds planted. Why is this? (5 points)