C 热考内容 时事新闻
KEY→P6
范畴:人与社会
主题:发明创新
体裁:说明文
难度:★★★
建议用时:6分钟
评价: /5
Living in a house made of fungi might sound like a story from a movie, but scientists are working to make it real!
Usually, people use cement to build houses, but this can hurt the environment. It puts a lot of carbon dioxide(二氧化碳) into the air. This is bad for Earth.
A group of US scientists tried their best to make hard fungi for buildings. Fungi grow in something called mycelium(菌丝体). This helps fungi find food under the ground. Mycelium is usually supple(柔软的), but the scientists put special bacteria into it. These bacteria make calcium carbonate(碳酸钙). This hardens the mycelium. It's also what hardens eggshells.
Now, the new material can stay strong for at least a month. Scientists are still working to make it last longer, long enough to be used in building houses. If the scientists can do it, we might use the hard fungi to build small houses.
()1. Why did scientists try to build houses with fungi?
A. To test the new idea from a movie.
B. To protect the environment better.
C. To cut down the price of buildings.
D. To take in carbon dioxide from the air.
()2. What do fungi depend on mycelium to do?
A. To find food and grow.
B. To take in more fresh air.
C. To build small houses.
D. To make a new material.
()3. How did scientists make the mycelium hard?
A. By adding eggshells into it.
B. By changing its material.
C. By putting special bacteria into it.
D. By letting it grow for long.
()4. What can we know from the last paragraph?
A. The new material can stay strong for only a month.
B. Scientists used fungi to build a lot of small houses.
C. It's so easy for scientists to use fungi to build houses.
D. Scientists are trying to make the material last longer.
()5. What is the main idea of the passage?
A. Scientists make cement stronger by using fungi.
B. Building houses is bad for our environment.
C. Scientists are working on a new building material.
D. Scientists try to know about a new kind of fungus.

美国科学家正在研究用真菌制造环保建筑材料来替代水泥。在菌丝体中加入特殊细菌后,细菌会产生碳酸钙,使菌丝体变硬。目前该新材料强度可持续至少一个月,科学家仍在改进。
1. B 推理判断题。根据第二段中"Usually, people use cement to build houses, but this can hurt the environment."可知,人们通常用水泥来建造房屋,但这会破坏环境,由此推断,科学家们之所以尝试用真菌来建造房屋,目的是更好地保护环境。
2. A 细节理解题。根据第三段中"Fungi grow in something called mycelium. This helps fungi find food under the ground."可知,真菌生长在一种叫作菌丝体的东西里,这有助于真菌在地底下找到食物,所以真菌依靠菌丝体来寻找食物和生长。
3. C 细节理解题。根据第三段中the scientists put special bacteria into it可知,科学家通过把特殊细菌放入菌丝体中使其变硬。
4. D 细节理解题。根据最后一段中"Scientists are still working to make it last longer, long enough to be used in building houses."可知,科学家们仍在努力延长它的使用寿命,使其可以用于建造房屋。
5. C 主旨大意题。通读全文并根据第一段内容理解可知,住在真菌做的房子里可能听起来像电影里的故事,但科学家正在努力让它成为现实,因此这篇文章主要讲述了科学家们正在研究一种新的建材。