live,因为文章中提到了人类是否能在火星上“生活”。 3. 答案为 B. arrive,因为文章指出答案将在2044年“到达”。 4. 答案为 A. space,因为文章讨论的是火星,而火星位于“太空”。 5. 答案为 D. know,因为文章暗示我们将在2044年“知道”这些问题的答案。 6. 答案为 C. be afraid of,因为文章中提到了...
Humans aren't built to live in space, and being there can bring serious health risks. Scientists have found a new risk to space travel. They have discovered that our DNA can change when going into space. DNA mutations(突变) could increase the risk of space travelers getting cancer.The scie...
To travel beyond the Earth and realize long-term survival in deep space, humans need to construct Bioregenerative Life Support System (BLSS), which reduces the requirement for supplies from the Earth by in situ regenerating oxygen, water and food needed by astronauts, and prevents p...
故答案为:Robots might see,talk and walk like humans.(2)细节理解题。根据第二段In the future,robots might see,talk and walk like humans.(在未来,机器人可能会像人类一样看到、说话和行走。)和第四段Robots will be more like humans in the future(机器人在未来将更像人类)可...
One thing needed for humans to live in space is food that can be grown outside of Earth. Let’s look at some of the latest progress scientists have made in space farming. Making small steps toward moon farming Researchers at the University of Florida, US, have been able to grow plants ...
One thing needed for humans to live in space is food that can be grown outside of Earth. Let’s look at some of the latest progress scientists have made in space farming. Making small steps toward moon farming Researchers at the University of Florida, US, have been able to grow plants ...
阅读理解Space can be a hard place to live in. Astronauts who go there experience a lot of different stresses. Some experiments by NAS A could help us learn more about how to survive in space.However, it was not humans, but a group of rather unusual animals that took part in these expe...
题目We humans are a curious species. As NASA says on its website,"Humans are driven to explore the unknown, discover new worlds, push the boundaries of our scientific and technical limits,and then push further. " And space exploration is where we\e been "pushing" our...
Humans are living longer around the world. While there have been obvious ups and downs, life expectancy at birth overall has been steadily increasing for many years. It has more than doubled in the last two centuries. This increase was previously driven by reductions in infant mortality. But ...
As is known to all of us, living in space can be very different from that on Earth. One of the most important differences is that there is no gravity (引力) in space. So many people think living things can’t develop (发育) well in space. However, a new discovery may prove (证明...