Teaching quality monitoring and answering questions of junior middle schools in the second semester of 20 12 school year in Lishui city
1 Lishui 20 1 1 Monitoring the quality of subject teaching in the first semester of the school year. Tips: 1. The full score of the whole paper is 160, and the examination time is 120 minutes. The test paper is ***8 pages, with 4 big questions and 38 small questions. 2. The answer of this volume must be in the corresponding position on the answer sheet, and it is invalid to do it on the test paper. Answer sheet ***4 pages. 3. The relative atomic mass that may be used in this volume: H-1C-12O-16NA-23CL-35.5Fe-56 I. Multiple-choice questions (There are 20 small questions in this question, each with 3 points and * * 60 points. Please choose a correct option that meets the meaning of the question, and you can't divide it into none, multiple choices or wrong choices. ) 1. Acetic acid and citric acid are common acids in food processing, which can ionize in water to produce A. H+B. OH-C. Cl-D. SO42-2. Recently, scientists have developed a cheap synthetic ammonia technology, which can be used at normal temperature and pressure. This chemical reaction belongs to A. Decomposition reaction B. Combination reaction C. Displacement reaction D. Double decomposition reaction 3. In the summer rush hour, in order to save electricity, the following practices are unreasonable ... A. When using the refrigerator, try to open the refrigerator door as little as possible. B. When using the high-efficiency electronic energy-saving lamp. C. When using the air conditioner, try to open the window for ventilation. D. Turn off the lights when leaving the room. 4. Al-Mg alloy is a new building decoration material, which is mainly used to make window frames, rolling doors and fences. The following properties have nothing to do with these uses: a. Not easy to rust; B. good conductivity; C. low density; D. high strength; 5. Nutrients in food mainly include water, sugar, protein, fat, inorganic salts, vitamins and crude fiber. Although crude fiber can't be digested and absorbed by human body, it has very important physiological functions. The following foods are rich in crude fiber: A. Fish, shrimp B. Eggs, pork C. Spinach, celery D. Milk, beef 6. The following is part of the blood routine examination report that Xiao Wang did in the hospital. From this, it can be judged that Xiao Wang may have the result of serial number item. The normal reference range is 1, the white blood cell count is 9.83.5 ~ 10× 109/L 2, and the neutrophil count is 65.050 ~ 70% 3. The red blood cell count is 3.03.5 ~ 5× 10 12/ L 4 hemoglobin 901/kloc-0 ~ 65438+The following fertilizers will produce irritating odor gas when mixed with hydrated lime: A. ammonium sulfate B. calcium superphosphate C. potassium sulfate D. potassium chloride 8. A brand of toner is liquid, and Xiao Ming suspects that it contains copper sulfate. I want to make a preliminary judgment by detecting sulfate ions. The reagents to be selected are A. bacl2 solution, dilute HNO3 B. purple litmus test solution C. NaCl solution and dilute HNO3 D.NaOH solution. 9. The World Hercules Competition not only embodies the strength of the players, but also incorporates the national customs of various countries, which is deeply loved by the audience. The picture below shows four scenes of Hercules in the competition. Hercules does the work of objects in September. Are you ready, teacher? Pre-school preparation for primary school teachers' teaching plans and work plans ... 210.201110/0/0 At 9: 00 a.m. on February 2, Lishui Municipal Domestic Waste Incineration Power Plant held an ignition ceremony, which made the urban domestic waste and combustible waste in Shui Ge Industrial Zone harmless. After the domestic waste power plant is completed, the annual power generation can reach 35 million kWh. The following statement about garbage incineration for power generation is wrong ... Yes. KWh is the unit of electric power. B. chemical energy is converted into heat energy during garbage incineration. When the generator works, mechanical energy is converted into electrical energy. When the generator works, electric energy is converted into mechanical energy. 1 1. Skydiving enthusiast Peng Gangna jumped from the top of the tallest building in Asia-"Taipei10/Building". In the process from A to B, the falling speed becomes faster and faster. From B to C, the kinetic energy of A. AB process becomes smaller, the kinetic energy of BC process remains unchanged, the kinetic energy of B. AB process becomes smaller, the kinetic energy of C. AB process becomes larger, and the kinetic energy of D. AB process becomes larger. The kinetic energy of BC process is constant, 12. The following descriptions of experimental operations or phenomena are correct: a. hydrochloric acid can turn purple litmus test solution blue; B, heating the copper sulfate crystal in the test tube and applying the external flame of the alcohol lamp flame; C, when diluting the concentrated sulfuric acid, slowly pouring water into the concentrated sulfuric acid along the glass rod, and keeping stirring; D. After using the rubber-head dropper matched with the dropper bottle, be sure to clean it, and then put it back in the original bottle 13. The picture shows the instantaneous photo of Xiao Ming's classmate's watt-hour meter. After observation and analysis, the following four conclusions are drawn: A. The electricity consumed by Xiao Ming's family is 9316 kwh B. The electricity consumed by Xiao Ming's family is 9310 kwh C. The rated current of the electric energy meter is 10AD. The rated current of the electric energy meter is 5a14.2011March 22nd, that is,19th. The following statement about water knowledge is incorrect ... It is A. Water is the most common solvent, and all sodium salts are easily soluble in water. B water is usually used as a coolant because of its small specific heat. C. biological physiological activities need the participation of water. D. Acid rain will cause water pollution 15. Preserving eggs with lime water is a chemical preservation method. The main reasons why lime water can keep eggs fresh are as follows: a. Lime water can react with CO2 exhaled by fresh eggs to form CaCO3 film; Lime water is alkaline. Strong bactericidal ability D. Support the log to make it stand still C. Lift the stone above the head from the ground A. Pull the stone pillar by hand with a horizontal lift car to make it stand still B. Support the log to make it stand still C. Lime water can penetrate into eggs and acidic substances D. Lime water can penetrate into eggs to make them taste more delicious 16. As shown in the figure, put a rectangular cement board with uniform thickness and density on the horizontal ground (the center of gravity is in the center of the cement board), and use a vertical one. Then a.f a >; F B, because the power arm length of method a is b.f a; F B, because the resistance arm of method b is short, D. F A =F B, because the power arm is twice as long as the resistance arm, 17. There is a bag of white solids which may contain one or more of sodium sulfate, sodium carbonate, barium chloride and sodium hydroxide. The sample was dissolved in water, resulting in a white precipitate. After filtration, hydrochloric acid was dropped into the precipitate, and the precipitate was partially dissolved. Therefore, it is judged that the white solid must contain a. sodium hydroxide and sodium sulfate B. sodium hydroxide and sodium carbonate C. sodium hydroxide and barium chloride D. barium chloride and sodium sulfate 18. The curve on the right is the change of oxygen or carbon dioxide concentration in human blood when it flows through different blood vessels (H, I, J), where H is pulmonary artery, then the curve and blood vessel I in the figure represent the concentration of oxygen in A and the concentration of oxygen in pulmonary vein B respectively. Pulmonary capillary C. carbon dioxide concentration, pulmonary vein D. carbon dioxide concentration, pulmonary capillary 19. Add a certain amount of dilute hydrochloric acid to the mixture of iron powder and copper oxide, filter after full reaction, there is a small amount of filter residue on the filter paper, and then insert zinc sheet into the filtrate to produce bubbles. Then the following judgment is incorrect ... A. The filter residue must contain copper B. The filter residue may be a mixture of copper and iron C. The filtrate must contain FeCl2 _ 2 and HCl _ d. The filtrate may contain CuCl _ 2 _ 20 ... The rated voltage of the small bulb is 6V, and the rated power is estimated to be between 7W-7W- 12W. Jony J measures the power of small bulbs according to the circuit shown in Figure A. The ammeter used has 0-0.6A and 0-3A, and the voltmeter has 0-3V and 0- 15V. When they were connected to the circuit, Jony J made the right choice and operation. The rheostat slides somewhere, and the two electrical representations are shown in Figure B and C. Then A. The rated power of the small bulb is 7.5wb. At 1V, the power of the small bulb is 7.5wc. At 5V, the power of the small bulb is1.5 wd. At 5V, the power of the small bulb is 7.5W seconds. Short answer (this question/kloc) Please analyze and answer: 4 (1) The phenomenon seen during the experiment is that the black copper oxide turns into a red substance, and at the same time, water drops appear at the nozzle of the test tube, indicating that hydrogen has the property of ▲; (2) At the end of the experiment, in order to prevent the generated red substance from turning black, the reasonable operation sequence is ▲ (fill in "a" or "b"). A. Stop heating first, and continue to introduce hydrogen until the test tube is cooled. B, firstly, stop introducing hydrogen, and continue heating until the water drops in the test tube disappear. To commemorate the achievements and contributions of chemistry in the natural sciences, the United Nations General Assembly decided to designate 20 1 1 as the "international academic year" with the theme of "Chemistry-human life, human future". The charm of (1) chemistry lies in experiments. Xiaoming performed "chemical magic" at the school science and technology festival. He first wrote on white paper with a pen dipped in colorless ▲ (containing "phenolphthalein test solution" or "litmus test solution") and dried the paper. When performing, the NaOH solution is sprayed on the paper, and red characters are displayed immediately. (2) Chemistry has also made outstanding contributions to human health. Chemical substance aspirin (C9H8O4) is an antipyretic and analgesic drug, and aspirin belongs to ▲ (fill in "organic matter" or "inorganic matter") in the classification of substances. 24. When Xiao Ming was cleaning, he found that the rust (main component Fe2O3) on the floor tile was difficult to clean with water, and decided to use what he had learned to solve this problem. He carried out the following activities: ① Looking for rust remover by testing pH value, and the results are shown in the right table; (2) pour a small amount of toilet cleaner on the rust of floor tiles, wipe and rinse, and the rust will be removed soon; According to the data, the main component of "Jiecaoling" is a mixture of some acids and many other substances. According to the above materials, please answer: (1) Among the above items, the most acidic is ▲; (2) If the chemical formula of an acid in toilet cleaner is HR, the chemical equation of the reaction between the acid and rust is▲. It is reported that a doctor diagnosed someone with acute cholecystitis due to unbearable abdominal pain and performed cholecystectomy for him. Unexpectedly, the patient's abdominal pain was more severe, and even his intestines were necrotic after a few days. So the doctor had to remove all his small intestine and part of his large intestine. Although the patient saved his life, his life was seriously affected afterwards. (1) After cholecystectomy, the digestion of food (full of "sugar", "protein" or "fat") will be greatly affected; (2) If all the small intestine and part of the large intestine are removed, nutrition can only be obtained through intravenous drip, because the food ingested from the digestive tract has lost its main position. At 26.20 1 1 March11Japan 165438: 46, an earthquake measuring 9.0 on the Richter scale occurred in the waters near Honshu Island, Japan, which triggered a tsunami, and subsequently led to a nuclear leak at the Fukushima nuclear power plant in Japan. (1) Nuclear power plants use nuclear energy to generate electricity. At present, the nuclear reaction used in nuclear power plants is ▲ (fill in "fission" or "fusion"); (2) In order to cool the shell of the nuclear reactor at high temperature, firefighters use water spray to achieve the goal. At this time, the internal energy of the nuclear reactor shell ▲ (fill in "increase", "decrease" or "unchanged"). 27.2011On April 29th, the 25th Zhejiang Youth Science and Technology Innovation Competition was held in Lishui. At the competition site, Xiao Ming showed a self-made table lamp with adjustable brightness. The picture on the right shows the circuit diagram, and the specification of the small bulb is "6V 3W". (1) In the process of connecting the circuit, the switch should be equipped with; (2) When the light is normal, the resistance of the small bulb is ▲Ω; (3) For the electric energy consumed by the circuit at the same time: Xiao Ming thinks that the desk lamp saves electricity when it is dark, while Xiao Lin thinks that the electric energy consumed by the sliding rheostat increases when the desk lamp is dark, so it does not save electricity. What do you think is correct ▲ (fill in "Xiao Ming" or "Xiao Lin"). The vinegar detergent oil stain cleaning toilet cleaner pH 31013.21CuoH2528. Chemical reactions are often accompanied by some phenomena, but the reaction between carbon dioxide and sodium hydroxide solution is not obvious. In order to explain the reaction between carbon dioxide and sodium hydroxide through some phenomena, a class of students did the following exploratory experiments. (1) They put a test tube with carbon dioxide collected upside down in a beaker filled with saturated sodium hydroxide solution (as shown in the figure) and saw the liquid level in the test tube rise. This phenomenon is due to ▲ inside and outside the test tube; A. Temperature difference B. gravity difference C. Pressure difference D. Buoyancy difference (2) After analysis and discussion, students think that there may be two reasons for the rise of liquid level in the experiment: one is that carbon dioxide dissolves in water and reacts with water, which consumes carbon dioxide; Another reason is ▲ (expressed by chemical equation). 29.2011/The Eighth Amendment to the Criminal Law of People's Republic of China (PRC), which came into effect in May, set strict definition standards for "drinking and driving" and "drunk driving", as shown in the following table. Drunk driving 20mg/ 100mL≤ blood alcohol content < 80 mg/ 100mL drunk driving blood alcohol content ≥ 80 mg/100ml (1) A traffic police detected that a driver's blood alcohol content was 66mg in a safe driving inspection, then (2) as shown in Figure A. Where the constant resistance R0 =10Ω, the power supply voltage is 3V, and r is a. If the detector detects that the alcohol content in the driver's blood is 12%, the reading of the ammeter is ▲ a.30.. Environmental problem is an important problem that must be solved in the sustainable development of mankind. In an "environmental protection" practice, the science extracurricular activity group of a school investigated the wastewater discharge of two chemical plants by the river, and found that: ① the wastewater discharged by the two factories was clear and transparent; (2) The wastewater from two factories contains six kinds of ions: K+, H+, Ba2+, OH-, NO3-and CO32-,and each factory contains three different kinds of ions. If the wastewater from two factories is discharged separately, it will cause serious pollution. After testing, the wastewater from a factory is obviously alkaline, so the three ions contained in the wastewater discharged from a factory are ▲. Third, experimental inquiry (there are 4 small questions in this question, 2 points in each blank, ***30 points) 3 1. LED lamp is a new type of environmental protection energy-saving lamp. In order to explore the luminous efficiency of LED lamps, ordinary incandescent lamps and ordinary energy-saving lamps, Meng Xiao conducted an experiment with the device shown in the figure (where R0 is a photosensitive resistor, and its resistance is inversely proportional to the light intensity). The experimental steps are as follows: (6544) Turn on switches S and S 1, power on 10 minutes, read the readings of thermometer and ammeter respectively, and fill in the following table. (2) Then connect the common energy-saving lamps and LED lamps with the same specifications into the lamp holder respectively, and repeat the above experiment. According to Meng Xiao's inquiry, please answer: bulb type: initial temperature in the box/final temperature in the box/℃ current indicator/mA incandescent lamp 20 78 6 Ordinary energy-saving lamp 20 50 15 LED lamp 20 35 60.