2. What's the temperature in Wuxi on a certain day -2~5? C, so the temperature difference of the day is _ _ _ _ _? C.
3. On the number axis, point A corresponding to number A and point B corresponding to number B are as shown in the figure, then | A+B | = _ _ _ _ _ _
4. According to relevant data, a pair of unwashed hands contains 850 million kinds of bacteria, which is expressed as _ _ _ _ _ _ _ _ _ _ _ by scientific notation.
5.( 1) The coefficient of the monomial-2xy7 is _ _ _ _ _ _ _ _ _ _ _.
(2) If–23xm+1y 3 and 4x4y5+n are similar terms, then nm = _ _ _ _ _ _
6. Class A * * * The whole class plants X trees, and one of them is a boy, and each of them plants Y trees on average, so the girls * * * plant _ _ _ _ _ _ _ _.
7. It is known that x=2 is the solution of the equation 2x–k =1about x, then the value of k is _ _ _ _ _ _.
8. As shown in the figure, OE bisects ∠AOC and OD bisects ∠BOC, so the complementary angle with ∠EOC in the figure is _ _ _ _ _ _.
9. At 4: 30, the angle between the minute hand and the hour hand is _ _ _ _ _? .
10. The picture shows the development of a cube. After folding into a cube, the word "sword" is opposite to _ _ _ _.
1 1. There are 40 students in one class. In a Chinese class, the teacher asked the students how many pictures the word "country" had. Eight people in the class think there are six paintings, 22 people think there are seven paintings, and 10 people think there are eight paintings. Therefore, the frequency of students who draw strokes correctly is _ _ _ _ _ _ _.
12. Digital decryption: There are a series of numbers, all of which have such a rule: the first number is 3= 1+2, the second number is 5=2+3, the third number is 9=4+5, and the fourth number is 17=8+9 ...
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Second, choose carefully (this big question is ***6 small questions, 3 points for each small question, *** 18 points. Only one of the four options given in each question is correct. Please fill in the letter code before the correct option in the brackets after the question. As long as you master the concept and think carefully, I believe you will definitely choose the right one! )
13. An integer with an absolute value less than 2 is ()
A. 1 B.2 C.3 D.5
14. let a =–(–3–2) 2, b = (–3) × (–2), and c = (–3) 2 ÷ (–2) 2, then ().
A.b>a>c B.b>c> A C.a>b>c D.c>a>b
15. After a drug in a pharmacy was sold at a price increase of 60% on the basis of the purchase price, it was told by the price bureau that the drug could only be sold at a price increase of 20% on the basis of the purchase price, so the price of the drug should be reduced now ().
A.40% B.30% C.25% D.20%
16. As shown in the figure, AB‖CD, ∠ 1=48? , then ∠2 equals ()
.48 caliber? B.42？
C. 132？ D. 138？
Calculation: (–13)+(–123). (2) Calculation: (–2) 2-(1–0.8× 53) ÷ (–2).
(3) Solve the equation: x–13–3x+22 =1.
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20. (The full mark of this question is 4) Find the value of algebraic expression 2 (xy–xy2)–(3xy2–xy), where x=2 and y =–1.
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2 1. (The full mark of this question is 6) As shown in the figure, there are four points A, B, C and D in the known plane. Draw a picture according to the following statement.
(1) Draw the light CD;
(2) Draw a straight line AB intersecting with ray CD on P;
(3) Connect BC, and draw the vertical section of BC through point A, where e is vertical foot.
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22. As shown in the figure, C, D and E are three points on the AB line, AC= 12CD, and E is BD.
The midpoint of, DE= 15AB=2cm, and find the length of CE.
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23. (The full mark of this question is 5) It is known that the complementary angle of one angle is less than half of the other angles by 20? , find this angle.
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24. (The full mark of this question is 6) As shown in the figure, the straight line AB and CD intersect at point O, OE⊥AB, and the vertical foot is O.
Bisect ∠BOD, ∠ DOE: ∠ EOC = 1: 2, and find the degree of ∠AOF.
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25. (The full mark of this question is 8) Xiaoming's extracurricular interest in his classmates after learning the collection and characterization of data.
My hobby was investigated, and he drew the following figure 1 and figure 2 according to the collected data.
Please answer the following questions according to the information provided in the picture:
(1) Figure 1, the "painting and calligraphy" figure is complete;
(2) In Figure 2, the central angle ∠ AOB = _ _ _ _ _? , the percentage of people who like music, calligraphy and painting and others is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
(3) What conclusions can be drawn by observing Figure 1 and Figure 2? (Write conclusions only)
Think with your head (the full mark of this question is 8. As long as you explore and think seriously, you will succeed! )
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26. As we all know, as shown in the figure, AB ‖ CD. Let m and n be moving points on AB and CD, respectively, and P is on the plane.
Any point (not on the straight line AB, CD), PM ⊥ PN. Try to explore ∠AMP in a given graph.
The relationship between www. 1230.org and ∠CNP.
Respondents: magic number-probation level 11-109:16.
Unit 1 Walking into Middle School
The second starting line in the first quarter
Take new steps in growth
1. The biggest psychological characteristic of junior high school students is that they are in the semi-mature stage.
2. Psychological weaning period: Teenagers try to get rid of their dependence on their parents psychologically and want to be independent.
3. Why is middle school the golden age of life development?
Answer: Because (1) people's physiology has changed significantly: their height and weight have increased rapidly, and their brains have become more and more perfect.
(2) Personal habits, interests, hobbies and personality characteristics are gradually formed.
(3) It is an important period of self-orientation, self-development and self-improvement.
Design a new development plan
1, short answer:
Facing the golden age of life development, how to design a new growth plan?
A: 1, learn to learn;
2. Cultivate good moral quality;
3. Pay attention to self-mental health;
4. Be brave in innovation and diligent in practice;
Middle school students should not only learn knowledge and skills, but also learn to learn.
3. Knowledge is updated quickly, but the spirit of "being happy to learn" and the ability of "learning" are behind the times.
4. How to learn to learn?
A: (1) Always reflect on your own learning methods and constantly improve and summarize your own learning experience; (2) Understand the learning methods of other students; (3) Collect the learning stories of university scholars at all times and in all countries; (4) Read books and newspapers about learning methods.
5. What is morality? Morality is the basic code of conduct that regulates what we should and should not do. It depends on school education, public opinion, people's inner beliefs and habits.
6. Basic moral standards of China citizens: patriotism and law-abiding, courtesy and honesty, unity and friendliness, diligence and self-improvement, dedication and dedication.
7. Five loves: love the motherland, love the people, love labor, love science and love socialism.
8. Health: refers not only to the absence of physical diseases, but also to the soundness and best state of psychological and social adaptability.
9. Why should middle school students pay attention to mental health?
A: Middle school students are in the fastest stage of physical and mental development and are prone to some psychological problems. This requires us to pay attention to mental health and cultivate good psychological quality as one of the fundamental tasks of self-development, consciously safeguard mental health, promote self-harmonious physical and mental development, and be an optimistic middle school student.
10. How do middle school students keep healthy by paying attention to their own psychology?
Answer: (1) I am willing to know myself, accept myself and experience the value of personal existence;
(2) Learn to face the reality and accept others;
(3) learn to coordinate and control emotions and be happy;
(4) Establish positive and realistic life goals;
(5) Enhance the sense of social responsibility;
(6) giving love to others;
(7) Reduce dependence and try to be independent.
1 1, how to cultivate their innovative consciousness and practical ability?
Answer: (1) Use more brains; (2) Diligence (combined with P8 in the book)
Show yourself in the second quarter
First of all, learn to know yourself.
1, self-evaluation
(1) In the actual process of study and life, we should know and evaluate our own strengths and weaknesses through reflection and introspection, constantly face ourselves, reflect on ourselves, adjust ourselves, and promote our healthy development.
(2) Review past experience, sum up the lessons of success and failure, and conduct self-evaluation.
(3) By comparing with peers in personality, ability, attitude towards others and emotional expression, we can find out our own characteristics and know ourselves accurately.
2, others' evaluation
(1) Know yourself through other people's evaluation.
(2) but it can't be completely influenced by other people's evaluation.
Second, the correct self-evaluation should not be too high or too low; See both your own shortcomings and your own advantages.
Third, show your own style.
1. Discover your own strengths and actively show your intelligence and style: (1) Find the fulcrum of personal confidence and find your own shining point; (2) Practice speaking in public step by step; (3) Positive self-suggestion.
2. Constantly surpass yourself: (1) Establish the belief that "only better, no best"; (2) Set higher development goals, guide and motivate yourself.
Have a good mood in the third quarter
1. Emotion: the psychological state caused by whether people's needs and desires are met.
2. Happiness, anger, sadness and fear are the most basic emotional types; (P0 16)
3. People's emotions are varied, and different stages of life have their own emotional characteristics. Most middle school students' emotions are rich and intense, with great ups and downs and instability. Reasons: Middle school students have many inner contradictions: they are eager to rely on their parents independently, eager to communicate with others but unwilling to open themselves up, eager to be positive and weak-willed, anxious about exams and keeping up with others.
4. Why do you say that emotions need to be adjusted?
A: (1) People's emotions can be divided into positive emotions and negative emotions; (2) Positive emotions, such as cheerful spirit, relaxed mood and open mind, are beneficial to people's health; (3) People who have been in negative emotions such as anger, sadness and anxiety for a long time are prone to various diseases; (4) Positive emotional state is easy to exert one's own level and improve the efficiency of study and work; (5) Negative emotions make people's judgment standard and analytical ability decline, and they are easy to lose their senses and lack self-control.
5. Performance of healthy emotions: (1) There are reasons for healthy emotions; (2) Proper expression of healthy emotions; (3) Healthy emotional expression is often enough.
6. Methods of adjusting emotions: diverting attention, reasonable venting, rational control, rational sublimation, changing cognition, humor, etc. (Read the textbook P 19-20 according to the notes).
Unit 2: The Road to Growth
Section 1 Feel the Growth
1. Growing up has its joys and sorrows, which are caused by many complicated factors in life, including individuals, families and society.
2. Growing adversity and adversity:
Everything in the world has two sides, and prosperity and adversity in life are no exception.
Prosperity can provide good conditions for people's smooth growth, but it is also easy to kill people's fighting spirit and make people content with the status quo and not enterprising.
Adversity will make people suffer, but it also has a positive side, which can make people stronger and promote people to grow their talents. When people encounter difficulties, only by actively thinking, analyzing and solving problems can they get out of the predicament. In the process of bearing various challenges and solving problems, people's talents have also been effectively developed and their will has been tempered. (Page 27-28)
3. In the face of prosperity, keep good qualities such as diligence, self-discipline, firmness and enterprising.
In the face of adversity, only by actively thinking, analyzing and solving problems can we get ourselves out of the predicament.
Section 2 Face setbacks directly
5. Frustration: Being hindered and interfered in the activities of achieving and pursuing a certain goal.
6. Frustration: psychological reaction caused by frustration.
7. Faced with setbacks, people have two different attitudes: (1) No longer afraid of difficulties and give in to setbacks; (2) Face up to difficulties and have the courage to overcome setbacks.
8. Facing setbacks, we should face up to difficulties and be brave enough to overcome them: (1) Facing setbacks, we should be calm and fearless, actively accept the challenges of setbacks and difficulties, take setbacks as an opportunity to sharpen our will, actively analyze the causes of setbacks, find ways and means to get rid of difficulties, and do everything possible to overcome difficulties and make ourselves successful; (2) A positive, optimistic and confident attitude towards life is a necessary condition to overcome setbacks and forge ahead; (3) In the face of setbacks, in the face of setbacks, we should try our best to overcome them.
9. How can we cultivate our excellent qualities of being fearless of setbacks and pioneering?
(1) correctly understand setbacks; 2 dare to be the first in the world; ③ Cultivate noble interests; ④ Make appropriate changes and pursue goals.
10, the role of strong will: it can stimulate people's potential, help people to play for a long time in difficulties, and even delay the pace of death and create a miracle of life.
1 1, and the will quality is mainly manifested in independence, decisiveness, self-control and perseverance. People with strong independence can often make and implement decisions independently according to their own knowledge and beliefs. Decisive people can make decisions quickly in complex situations and put them into action in time. People with strong self-control are not easily influenced by the outside world and can control themselves. Perseverant people show the quality of not being afraid of difficulties and not giving up until they reach their goals in the course of action.
12, Exercise will: 1) Set up ideals and promote growth 2) Start from small things, start from now 3) Grow up in labor and physical exercise 4) Try to do something interesting but meaningful (read P40-44).
Unit 3: the way to get along
Section 1 between parents and children
1. Causes of parent-child conflict: differences in life background, age characteristics and social status; The contradiction between parents and children is caused by both parents and children.
2. Achieve parent-child harmony: 1) Understand parents' intentions (understand parents' expectations, concerns and pressures) 2) Learn to express to parents 3) Learn to make necessary concessions and apologies (read textbook P49-5 1).
3. How to express your opinions to your parents: (1) Pay attention to the occasion; (2) the way of attention; (3) Master proper limit; (4) Practical.
4. How should we honor our parents?
(1) Be considerate of parents' hard work; (2) Caring for parents' health; (3) Understand parents' thoughts; (4) Listen to parents' instruction; (5) Share parents' depression; (6) Don't ask too much of your parents.
Read the textbook P53 "We can honor our parents in this way" P5 1 "We can express our opinions to our parents in this way"
Section 2 Between teachers and students
5. Causes of conflicts between teachers and students: differences in roles, positions and perspectives between teachers and students.
6. How to learn to communicate with teachers?
(1) Respect teachers: respect teachers' personality; Respect and understand the teacher's work. (the starting point of teacher-student communication)
(2) frank communication.
(3) Care for teachers.
7. How should we give advice to teachers? (Read the textbooks P56-58 and P57 "We can give advice to teachers in this way" in combination with your own notes. )
(1) Seize the opportunity; (2) the tone is peaceful; (3) treat each other with sincerity; (4) Pay attention to the way.
Section 3 Walking with friends
8. Why do we need friendship in our life? (1) When we enter middle school, our sense of independence is enhanced and we are eager to be respected by others. (2) Friendship is our psychological need; (3) Sincere friendship can help us solve our troubles and sorrows and share happiness and happiness.
9. How to find good friends?
(1) Make good friends (honest, trustworthy and well-informed friends): To associate with such friends, you can not only be honest and tolerant, but also point out your shortcomings and deficiencies in time to help yourself make progress.
(2) Make friends who need you: you can't just make friends from your own needs and interests; We should offer a hand of friendship.
10, principles that should be paid attention to in the process of making friends (how to make friendship last forever):
1) friends also need to respect (maintain each other's self-esteem, don't say anything that hurts each other's self-esteem, and don't do anything that hurts friends; We also need to treat each other as equals, properly grasp the principles of communication and not impose our wishes on each other) 2) Establish friendship through communication; 3) Pass on friendship through care; 4) praise and encouragement; 5) Maintain friendship through tolerance (be tolerant of different opinions of friends; Can tolerate the advantages and disadvantages of friends, not jealous of their success, and will not discriminate against friends because of their shortcomings)
1 1. Why do friends need to respect each other?
(1) Everyone has his own dignity, unique experience, thoughts, wishes and requirements;
(2) Everyone wants to be respected by others;
(3) Students and friends also need to respect each other.
How to respect friends?
(1) know how to maintain each other's self-esteem;
(2) Treat each other as equals, grasp the principle of communication, and do not impose your wishes on each other.
Unit 4: Building Team Spirit
In the first quarter, Xiao He tried to show his sharp corners.
1. team: a group formed for the same goal, which is an organic whole. In the team, only mutual cooperation and close cooperation can achieve the goal of * * *. Team spirit is the spirit of cooperation.
2. Reasonable competition: it is based on one's own strengths and advantages, and achieves one's goals in accordance with the principles of equality, fairness, honesty and trustworthiness, rather than competition that sets obstacles for the development of others through immoral means.
3. Reasonable competition can keep the team alive and energetic, fully display self-worth, help to develop everyone's potential, give full play to individual ability, help to form group cohesion and improve the overall ability of the group.
4. Unfair competition highlights itself mainly by suppressing, attacking and slandering the reputation of others, so as to achieve personal goals. Unfair competition is not only against morality, but also against the law. Unfair competition weakens team spirit, destroys the relationship between people and causes great "internal friction", which is harmful to individuals and groups. Unfair competition makes people accustomed to opportunism, develops the bad habit of laziness and selfishness, and may even reduce the overall strength of competitors, form a bad team atmosphere and affect the development and progress of collective members.
5. Why can't competition forget cooperation?
Because competition can fully mobilize people's initiative and stimulate people's enterprising spirit and innovative spirit, long-term competition can easily lead to tension, anxiety, sense of failure and hostility. Active cooperation can reduce or even eliminate the negative impact of competition, so that everyone can experience the psychological effect of mutual help and team spirit has also been cultivated.
6. I+We = Fully I: Only by integrating myself into the collective can a person realize his personal value to the greatest extent and blossom a beautiful flower of life.
7. Three results of competition: lose-lose; Double lose; Win-win situation Among them, win-win is the most ideal result of competition, and good cooperation creates win-win.
8. How to cooperate well: (1) Individuals have overall awareness and group awareness; (2) learn from each other in the process of cooperation; (3) communicate with each other; (4) Make appropriate compromises and concessions when necessary.
Section 2 Don't do to others what you don't want them to do to you.
9. Empathy: think from the standpoint of others (overcome extreme or extreme thinking habits; Have a tolerant heart, remember others' help more, and think less about others' faults.
10, how to be tolerant?
(1) Respect others and seek common ground while reserving differences; (2) Moderate tolerance and consideration for others; (3) Treat each other honestly and communicate actively; Face up to shortcomings and improve yourself.
1 1. Why do people need to support each other?
(1) In social life, everyone can't exist without others, and people are interrelated;
(2) Mutual support is a social virtue;
(3) Mutual support can support a harmonious sky.
12, mutual support: 1) Learn to be kind to others, know how to care about others, think more about their feelings, help those in need, don't expect anything in return, and sincerely hope that others will live better. 2) Mutual support between people is also manifested in helping others with practical actions. 3) Accept others' help appropriately, and respect others' efforts and care.
Section 3 Unity is strength
13, the role of unity on individuals and collectives: unity is an important condition for individual survival and development; Unity is the basis for achieving collective goals;
14, the class is our collective study and activity.
15, the role of a good class group: (1) The class group plays an important role in the formation and development of personal thoughts, personality, interests, hobbies, habits and morality. 2) Good class groups lay the foundation for our healthy physical and mental development. Because this can make everyone feel the collective strength and the role of individuals in the collective, so as to integrate into the class collective life more actively, show themselves more fully, enrich themselves and improve themselves. 3) A good class group is an important condition for us to form good quality.
16, 1) It is necessary to rely on everyone's joint efforts to create a good class group; 2) In the collective, we should take the overall situation into consideration, put the collective interests first, and take the initiative to undertake our due obligations 3) Create a healthy and upward collective atmosphere.
17, don't do to others what you don't want: don't impose on others what you don't want to bear. Always put yourself in others' shoes, put yourself in others' shoes, and think of others more.