20 1 1 senior three adaptability test

Comprehensive examination questions of science

This paper is divided into two parts: the first volume (multiple-choice questions) and the second volume (non-multiple-choice questions), in which the first volume (33-40) is multiple-choice questions and the rest are required questions. Candidates should write their answers on the answer sheet when answering questions. The answers on this paper are invalid. After the exam, return this paper together with the answer sheet.

Precautions:

1. Before answering questions, candidates must first fill in their names and admission ticket numbers on the answer sheet, carefully check the names and admission ticket numbers on the bar code, and paste the bar code at the designated position on the answer sheet.

2. Fill in the answers to multiple-choice questions with 2B pencil. If you need to change it, clean it with an eraser, and then choose the label of other answers. The answers to multiple-choice questions should be written with 0.5mm black gel pen (signature pen) or carbon pen, with neat font and clear handwriting.

3. Please answer each question in the answer area (black wireframe) according to the question number. The answer written outside the answer area is invalid.

4. Keep the card surface clean, folded and intact.

5. Candidates should answer the questions according to the requirements of the questions when choosing the exam questions, and use 2B pencil to black out the questions corresponding to the selected questions on the answer sheet.

Possible relative atomic mass: h1c12o16S32fe56.

volume one

First, multiple-choice questions (this question *** 13 small questions. Of the four options given in each question, only one meets the requirements of the topic. )

1. The following statements about the structure and function of human cells are wrong.

A golgi bodies are abundant in salivary gland cells and pancreatic cells.

B. At the same time of mRNA synthesis, multiple ribosomes will combine with mRNA.

C. Nuclear pore is a selective access channel for biological macromolecules.

D. When intestinal villous epithelial cells absorb and transport nutrients, mitochondria are concentrated at both ends of the cells.

2. The following is a schematic diagram of cell apoptosis and clearance in animals. According to the chart analysis, it is incorrect that

A.① This process shows that apoptosis is specific and embodies the information transmission function of biofilm.

During the process of apoptosis, a new protein was synthesized, which reflected the selective expression of the gene.

C.② Apoptosis cells are swallowed up in this process, which indicates that apoptosis is a passive process of cell death.

D apoptosis-related genes are inherent in the body and play an important role in the growth and development of animals.

3. The following statement about the experiment is correct.

A. When exploring the specific effects of amylase on starch and sucrose, iodine solution can be used instead of Phyllin reagent for identification.

B. the experimental results of separating chloroplast pigment by paper chromatography show that chlorophyll b has the lowest solubility in chromatographic solution

C when investigating the incidence of a genetic disease in the population, families with a history of genetic diseases should be selected for investigation and statistics.

D. When identifying protein, biuret reagent solution A and solution B should be mixed before being added to the tissue sample solution to be tested.

4. Eukaryotes have sexual reproduction through meiosis and random fertilization.

A. increase the probability of gene mutation

B. Inherit all the genetic characteristics of both parents

C. take half DNA from both parents.

D. producing gene combinations different from those of parents.

5. In order to verify that insulin can reduce the blood sugar content, when designing the experimental scheme, if the change of symptoms before and after each drug injection in normal mice is taken as the observation index, the order of drug injection in the following experimental groups is correct.

A. Inject insulin solution first, then glucose solution.

B, inject insulin solution first, and then inject insulin solution.

C. Inject insulin solution first, and then inject normal saline.

D, inject physiological saline first, and then inject insulin solution.

6. The following statement is consistent with modern biological evolution theory.

A. species can form without isolation.

The essence of biological evolution is to preserve favorable variation.

C. the favorable variation produced by gene mutation determines the direction of biological evolution.

D. natural selection affects the gene frequency of a population by acting on individuals.

7. The following chemical expression is correct ()

A. Electronicity of sodium chloride: B. Proportional model of propane molecule;

C. ionization equation of nahco3 nahco3 = na++HCO3—D—D. chlorine atom with mass number of 37:

8. The following statement is true ()

A, deethylenizing ethane, introducing hydrogen, and adding a catalyst for heating.

B. Both toluene and propylene can discolor the carbon tetrachloride solution and acidic potassium permanganate solution of bromine.

C, after bromine water is extracted with nitrobenzene, the color layer is in the lower layer.

Propane and isobutane are not homologues.

9. All carbon atoms in the following substances must be on the same plane.

① m-xylene ②2- butene ③ 1, 2- dibromopropane ④ 2- methylpropane

a、①② B、①②④ C、①②③④ D、①②③

10. The following ionic equation is correct.

A. The FeI2 solution with the same substance concentration is mixed with bromine water with the same volume, 2Fe2++2I-+2Br2=2Fe3++I2+4Br-

B Iron hydroxide is soluble in hydroiodic acid: Fe(OH)3+3H+ ==Fe3++3H2O.

C, introducing excessive carbon dioxide Ca2++2clo-+H2O+CO2 = CaCO3 ↓+2hclo into the calcium hypochlorite solution.

D, dropping the Ba(OH)2 solution into the sodium bisulfate solution until it is just neutral, which is 2h++SO4 2-+Ba2+2oh-= baso4 ↓+2h2o.

1 1. After mixing 0.05mol/L sulfuric acid solution with Ba(OH)2 with PH= 13 at room temperature, the PH of the solution is 12, so the volume ratio of sulfuric acid solution to Ba(OH)2 solution is about.

a . 9: 1 1 b . 3:2 c . 4: 1 1d . 1:9

12. 10GFE-Mg alloy is dissolved in a certain concentration of excessive dilute nitric acid. When the metal reacts completely, 4.48LNO gas is collected at standard temperature and pressure (assuming that the reduction product of HNO3 is only NO). Adding enough NaOH solution to the reaction solution can obtain the precipitation quality.

a . 13.4g b . 17g c . 20.2g d . 14.6g

13. The following devices are designed for experimental purposes.

Second, multiple-choice questions (this is entitled ***8 small questions. Among the four options given in each small question, some have only one correct option, while others have multiple correct options. All the choices are right, 6 points, 3 points and 0 points.

14. In the development of physics, many scientists have made contributions. The following statement is correct.

A. Franklin, an American scientist, was the first person in history to name positive and negative charges; Coulomb first studied the law of interaction between charges with a torsion balance. Millikan first measured the number of electrons; Thomson first discovered the electron.

B. Kepler first discovered the laws of planetary motion; Harley uses the law of universal gravitation to calculate the regression period of comets.

C Galileo studied the law of free fall by exploring the law of copper ball moving along the inclined plane, and then reasonably extrapolating the inclined plane into a right angle; Maxwell summed up the electromagnetic field theory on the basis of the electric field and magnetic field theory put forward by Tesla.

D Edison first invented the generator by using the law of electromagnetic induction in history, and Faraday first tried AC long-distance transmission.

15. An object with a mass of m = 20 kg moves in a straight line along the horizontal plane under the action of a constant horizontal external force F. In 0 ~ 2 s, f is opposite to the direction of motion, and in 2 s ~ 4 s, f is the same as the direction of motion. The velocity-time image of the object is shown in the figure, and g is known as 10 m/s2. Then ()

The displacement of the object passing within A.0 ~ 4 s is 8 m.

B. the pulling force f is 100N.

C the dynamic friction coefficient between the object and the ground is 0.4.

D. the work done by an object to overcome friction is 320 j.

16. As shown in the figure, one end of the lightweight spring with stiffness coefficient k is tied to the vertex P of a vertically placed circular ring with radius r, and the other end is tied to a ball with mass m, and the ball passes through the circular ring for frictionless motion. Suppose the ball is placed at point A at first, the spring is in a natural state, and it starts to move from point A. When the ball moves to the lowest point, the speed is zero and there is no pressure on the ring. The following analysis is correct.

A. in the process from a to b, the mechanical energy of the ball is conserved.

B in the process from a to b, the work done by the ball under the elastic force of the spring is less than that done by gravity.

When the ball passes through point B, the elasticity of the spring is

D when the ball passes through point b, the power of the resultant force is not zero.

17. As shown in Figure A, Q 1 and Q2 are two fixed-point charges, in which Q 1 is negatively charged, and the two points are on the extension line of their connection. At present, a negatively charged particle moves from a point to a distance in a straight line at a certain initial speed (the particle is only affected by the electric field force), and the speed of the particle passing through two points is, and its speed-time image is shown in Figure B. The following statement is incorrect.

A.it must be positively charged.

B. the strength of must be greater than the strength of.

The electric field intensity at point C. B must be zero.

D. In the whole movement process, the electric potential energy of particles first increases and then decreases.

18. As shown in the figure, the front and rear sides of the rectangular power generation conduit are insulators, and the upper and lower sides are conductor electrodes with negligible resistance. The distance between the two electrodes is D, and the polar plate area is S. These two electrodes are connected with a variable resistor R. In the direction perpendicular to the front and rear sides, there is a uniform magnetic field with a magnetic induction intensity of B. There is a high-temperature ionized gas with resistivity in the power generation duct, which flows to the right at a speed of V and is led out through a special pipeline. Due to the magnetic field, the moving ionized gas will produce electromotive force with constant magnitude. If the resistance of airflow is not considered, the electric power consumed by the variable resistor can be deduced from the above conditions. Adjust the resistance of the variable resistor. According to the above formula or your physical knowledge, the maximum value of the electric power consumed by the variable resistor R can be obtained by the following formula.

A.B. C. D。

19. As shown in the figure, long-range ballistic missiles are launched from point A on the ground. Under the action of gravity, flying along the elliptical orbit of ACB, hitting the ground targets B and C as apogee of the orbit, with a height of H above the ground, radius of the earth known as R, the mass of the earth as M, and the gravitational constant as G, the following conclusion is correct.

A. the speed of the missile at point c is greater than

The acceleration of the missile at point C is less than

The center of the earth is a focus of the missile's elliptical orbit.

The time for the missile to move from point A to point B must be less than T0.

20. A classmate drew the curves of total power PE, output power Pr and internal thermal power PR of DC power supply with current I in the same coordinate system, as shown in figures A, B and C on the right. The following statement is incorrect ()

A. graph a shows the relationship between output power PR and current i.

B. Take three points A, B and C with the same abscissa on the three diagrams A, B and C, and the ordinate of these three points must satisfy the relationship PA = Pb+PC.

C. The power corresponding to the highest point of line C in the figure is the maximum output power.

The ratio of the abscissa of the intersection m of straight lines D, B and C to the intersection n of straight lines A and B is 1:2, and the ratio of the ordinate is 1:4.

The figure 2 1. shows a sufficiently long vertical magnet structure. In figure 1, the two magnetic poles of the magnet are concentric circles and rings respectively. In the gap between the two poles, there is a radial magnetic field, the direction of which is horizontally outward, and the magnetic induction intensity of a certain point is inversely proportional to the distance from the point to the central axis of the magnetic pole. A circular single-turn coil made of thin metal wire with a certain cross-sectional area has no initial velocity release from a certain height, and the plane of the coil is always horizontal and keeps the axis with the magnetic poles during the falling process between the magnetic poles. After the coil is released

A. There is no induced current in the coil, and the coil is in free fall.

In the top view of figure 1, the induced current in the coil is counterclockwise.

C coil has the maximum speed, and the larger the coil radius, the smaller the maximum speed.

D coil has the maximum speed, and the larger the coil radius, the greater the maximum speed.

Volume II

Third, non-multiple choice questions: including mandatory questions and multiple choice questions. Questions 22 to 32 are compulsory questions, and candidates must answer each question. Questions 33-40 are entitled "Selecting Examination Questions", and candidates answer them as required.

(1) Required Questions

22.(4 points) (1) In the experiment of "Exploring the Theorem of Kinetic Energy", a classmate conducted the experiment with the following methods and equipment: a trolley placed on a long board moved along the board from standstill under the action of several same rubber bands, and the trolley pulled the paper tape fixed on it, and the paper tape passed the dot timer. Regarding this experiment, the following statement is incorrect.

A. The long board should be inclined appropriately to balance the resistance when the car moves.

B when repeating the experiment, although the number of rubber bands used is different, the length of rubber bands should be the same every time.

C. When calculating the vehicle speed by using the points on the paper belt, the part with the densest dots on the paper belt should be selected for calculation.

D when calculating the vehicle speed by using the points on the paper belt, the most sparse part on the paper belt should be selected for calculation.

(2) In the above experiment, the frequency of alternating current used by the point timer is 50Hz. The classmate put a piece of paper tape as shown in the figure, and the speed of the car when it moves at a uniform speed is m/s (the calculation result retains 3 significant figures).

23.( 1 1) A project research group collected all kinds of waste batteries such as digital cameras and mobile phones, as well as resistors, capacitors and inductors removed from abandoned radios. Two components to be tested are selected from these materials, one is a resistor R0 (about 2kΩ) and the other is a lithium battery commonly used in mobile phones (the nominal electromotive force E is 3.7V, and the maximum allowable discharge current is 100mA). The following experimental equipment is also prepared on the operating platform:

A. voltmeter v (range 4V, resistance r v is about 4.0kΩ)

B. ammeter A 1 (range 100mA, resistance r A 1 is about 5ω).

C. ammeter A2 (measuring range 2mA, resistance r A2 is about 50Ω)

D sliding rheostat r1(0 ~ 20 Ω, rated current 1A)

E. Resistance box R2(0 ~ 999.9ω Ω, minimum dividing value 0.1Ω)

F. A switch and a wire

several

(1) In order to measure the resistance of the resistor R0, a member of the team designed the circuit schematic diagram as shown in the figure, and selected the corresponding equipment (lithium battery for power supply to be tested). There is something wrong with circuit design or equipment selection. How do you think it should be adjusted? ___________________。

(2) In the actual operation process, it is found that the sliding rheostat R 1,

The ammeter A 1 is damaged. Please use the remaining equipment to measure the electromotive force e and internal resistance r of lithium battery.

A. Please draw the experimental circuit diagram in the box (marked).

Equipment symbol), and the physical diagram is connected into an experimental circuit with stroke lines instead of wires.

B. In order to facilitate analysis, linear images are generally used to process data. Please write the functional relationship between the related physical quantities corresponding to the line image _ _ _ _ _ _ _ _ _ _ _ _.

24.( 14 minutes) As shown in the figure, there is an airplane doing bombing training above the horizontal ground, and the airplane moves in a straight line at a constant speed along the horizontal direction. When the plane flies over point A directly above observation point B, it drops a bomb. After time t, the bomb landed at point C at L 1 in front of observation point B. At the same time, the plane dropped a second bomb and finally landed at point D at L2 in front of observation point B, ignoring the air resistance. ask

(1) The first descent speed of the aircraft.

(2) The flight distance of the aircraft within the interval time t between dropping bombs.

(3) the acceleration of the plane flying horizontally

25.( 18) As shown in the figure, in the x-o-y coordinate system, there is a uniform magnetic field in the circular area with (r, 0) as the center and R as the radius. The magnetic induction intensity of this magnetic field is B, and the direction is perpendicular to the paper. At y >, in a large enough area of R, there is a uniform electric field along the negative direction of Y axis, and the field strength is E. Protons are emitted from point O in different directions at the same speed, and the trajectories of protons are all in this paper. The trajectory radius of protons in the magnetic field is also R. It is known that the charge of protons is Q and the mass of protons is M, regardless of the influence of gravity and the interaction between protons.

(1) Find the velocity of protons injected into the magnetic field;

(2) If protons are injected into the magnetic field along the positive direction of the X-axis, find the second time from the point where protons enter the magnetic field to the point where they leave the magnetic field;

(3) If protons are emitted from the O point along the direction that forms an included angle θ with the positive direction of the X axis.

Input the magnetic field in the first quadrant and find the total time for protons to move in the magnetic field.