内容正文:
Chinese scientists create replicas of human organs
3D printing, a technology that creates objects layer by layer, has revolutionized the way things are made. Recently, a group of Chinese scientists took this process a step further by using the technology to create realistic replicas of human organs.
Previously, it was challenging to create a single material that could print different human organs due to their complexity. The research team from the Lanzhou Institute of Chemical Physics at the Chinese Academy of Sciences started by using hydrogel, a soft gel-like material.
According to the team’s paper, published in the journal Advanced Functional Materials, they were able to produce organ models including the brain, lungs and intestines. These 3D-printed organ models are essential for research purposes, such as testing medical equipment and demonstrating surgeries.
【词汇夯基】(470-480)
1. He ________ on the bottom step.(绊倒)
2. She _______ ___ the wallet she picked up on the way.(上交)
3. Men of this _______ are not to be trusted.(类型)
4. She was ________ for two days after the accident.(失去知觉的,不省人事的)
5. At first,people approved of his studies and _______ him to continue.(催促)
【阅读理解】
Renewable energy sources can help combat climate change, but dietary choices also play a significant role. Opting for plant-based diets or lab-grown food can reduce greenhouse gas emissions from the food system. We highlight the potential of dietary changes and the importance of providing choices instead of mandates (命令).
Research shows that a global shift towards vegetarian(素食的) diets could cut emissions from food system by over half. Even small changes towards plant-based diets can have a meaningful impact. Substituting conventional food with lab-grown alternatives could prevent 1 degree of future warming. These findings demonstrate the power of dietary changes in addressing climate challenges.
Dietary choices are influenced by factors like culture, religion, and economics. It is unreal