1. 阅读理解

Given that cancer is one of the deadliest diseases out there, any new development in our fight against it is highly praiseworthy. The latest breakthrough was made by Heman Bekele in 2023, a 14-year-old student from Virginia. The student has created a bar soap to treat skin cancer. Now, his findings have earned him the title of America's Top Young Scientist.

Bekele remembers he always saw people who were constantly hit by the glaring sun as a child. As he grew up and began to realize the risks like skin cancer were associated with sun exposure, the boy decided to come up with solutions.

While similar treatments are available, Bekele hoped to work on a more affordable alternative, especially for those in developing countries. "I wanted to make my idea something that not only was great in terms of science but also could benefit as many people as possible," Bekele says. It is often the simple solutions that are the most effective because soap is a daily routine for most people.

With the guidance of Deborah Isabelle, a product engineering specialist, Bekele made his soap by mixing regular soap with compounds (化合物) that slowly reactivate dendritic (枝状的) cells. When the soap is applied, it releases toll-like receptors into our skin. These receptors attach onto dendritic cells which reactivate them. The reactivated dendritic cells then join with TN io12 cells to fight cancer cells. Rather than a cure, Bekele's soap aims to help people's immune cells stay active while fighting skin cancer.

For now, the young scientist hopes to improve his invention and create a non-profit to distribute the soap among those who need it most. "I believe that young minds can make a positive impact on the world," Bekele said. "I have a strong desire to know how the physical world works and how to improve the lives of its inhabitants, and this challenge gives me the perfect platform to showcase my ideas."

1. （1） Why is Bekele's childhood experience mentioned in paragraph 2?

   A . To show his genius for scientific creation. B . To express people's eagerness for his soap. C . To explain his motivation to create the soap. D . To remind people of their similar memories.
3. （2）  What does Bekele expect about his soap?

   A . It can be admirable for the design. B . It can be available to more people. C . It will be effective in curing any cancer. D . It will be pioneering in terms of science.
5. （3）  What is paragraph 4 centered on?

   A . The treatment principle of the soap. B . The damage caused by skin cancer. C . The prevention measures of skin cancer. D . The professional evaluation of the soap.
7. （4）  Which of the following can best describe Bekele?

   A . Creative and loyal. B . Ambitious and plain. C . Curious and adaptable. D . Sympathetic and curious.