参加考试: 高考英语：科普说明文阅读 | Zestly

Question 1

Read the following text: 'Plate tectonics is the scientific theory describing the large-scale motion of the plates making up Earth's lithosphere. These plates move over the asthenosphere, a semi-fluid layer. When plates collide, they can form mountains or trigger earthquakes.' What does the text imply about the relationship between plate movement and geological events?

Accepted Answer

Plate collisions can result in the formation of mountains

Accepted Answer

Earthquakes are a potential consequence of plate interaction

Answer

The lithosphere is a stationary, solid layer

Answer

The asthenosphere is a solid layer that prevents movement

Question 2

Read the following text: 'Antibiotic resistance occurs when bacteria evolve mechanisms to survive exposure to drugs designed to kill them. This often happens due to the overuse of antibiotics, which kills susceptible bacteria but leaves behind those with mutations that provide resistance. These resistant bacteria then multiply.' What is the primary cause of antibiotic resistance according to the text?

Accepted Answer

The survival and multiplication of bacteria with resistant mutations

Answer

The evolution of bacteria into viruses

Answer

The complete elimination of all bacterial populations

Answer

The development of antibiotics that are too strong

Question 3

Read the following text: 'The human immune system uses two main types of responses: innate and adaptive. The innate response is immediate and non-specific, acting as the first line of defense. The adaptive response is slower but highly specific, creating memory cells that recognize pathogens upon future exposure.' Which of the following are characteristics of the adaptive immune response?

Accepted Answer

It is highly specific to certain pathogens

Accepted Answer

It creates memory cells for future recognition

Answer

It is the first line of defense

Answer

It is immediate and non-specific

Question 4

Read the following text: 'Kinetic energy is the energy an object possesses due to its motion. It is defined by the formula $E_k = \frac{1}{2}mv^2$, where $m$ is the mass and $v$ is the velocity. If an object's velocity doubles while its mass remains constant, how does its kinetic energy change?'

Answer

It remains the same

Answer

It doubles

Answer

It quadruples

Answer

It is halved

Question 5

Read the following text: 'Nitrogen fixation is a process where atmospheric nitrogen is converted into ammonia by certain bacteria. This ammonia can then be used by plants to synthesize proteins. Without this process, most plants would be unable to obtain the nitrogen necessary for growth.' Which of the following are true based on the text?

Answer

Bacteria play a critical role in nitrogen fixation

Answer

Plants can directly convert atmospheric nitrogen into proteins

Answer

Nitrogen fixation is essential for plant growth

Answer

Atmospheric nitrogen is the primary source of plant energy