C
根据短文内容，从题中所给的A、B、C、D四个选项中选出一个最佳选项。
Life in the future will be very different from what it is today. Technology will change every part of our daily lives.
In the future, houses will be more amazing. The walls of the house made of special materials can change colours according to the weather. When it's sunny, the house may turn light blue to make you feel cool. When it's cold, it will become orange to give you a warm feeling. Inside the house, smart robots will take care of everything. They can clean the rooms, cook delicious meals, and even look after the old or the sick.
Transportation will also be quite different. Flying cars will be everywhere. People can drive them to work or travel. These cars can fly above traffic jams, making the journey much faster. And they will use clean energy, so they won't cause air pollution.
Education will also change a lot. Students won't need to carry heavy schoolbags. All the textbooks will be in digital form on their laptops. Classes will be more interesting with virtual reality (VR) technologies. Teachers can use these technologies to bring history, science experiments, and far places right into the classroom.
21. What can the walls of the house in the future do? ()
A. Make the house beautiful.
B. Change colours according to the weather.
C. Make the house bigger.
D. Make the house move.
22. Which of the following isn't mentioned about the things the smart robots can do in the future according to the text? ()
A. Clean the rooms.
B. Look after the old.
C. Teach students.
D. Cook meals.
23. Why will flying cars be popular in the future? ()
A. Because they are very cheap.
B. Because they are very small.
C. Because they can make people fly.
D. Because they can fly above traffic jams and use clean energy.
24. Which of the following is TRUE according to the text? ()
A. Future houses will be made of common materials.
B. Animals will drive cars for people in the future.
C. Future life will be the same as today.
D. VR technologies will make classes more interesting.
25. What's the best title for the text? ()
A. The Future Houses
B. The Future Transportation
C. The Changes of Future Life
D. The Future Robots

21－25 BCDDC

【分析】做此类阅读理解题，需先通读全文把握主旨，再针对每道题的题干关键词定位原文对应段落，将选项与原文内容逐一比对，排除错误选项，选出最佳答案。具体到各题：21题定位未来房屋墙体功能；22题定位智能机器人的工作内容；23题定位飞行汽车受欢迎的原因；24题逐一验证选项与原文的匹配度；25题概括全文核心内容选标题。
【解析】
21题：根据第二段“The walls of the house made of special materials can change colours according to the weather.”可知，未来房屋的墙能随天气变色，对应选项B；A（变美）、C（变大）、D（移动）均未提及，故选B。
22题：根据第二段“smart robots will take care of everything. They can clean the rooms, cook delicious meals, and even look after the old or the sick.”可知，智能机器人可打扫、做饭、照顾老人/病人，未提及教学，故选C。
23题：根据第三段“These cars can fly above traffic jams, making the journey much faster. And they will use clean energy, so they won't cause air pollution.”可知，飞行汽车受欢迎的原因是能避开拥堵且用清洁能源，对应选项D；A（便宜）、B（小）未提及，C（能飞）片面，故选D。
24题：A项“未来房屋用普通材料”与原文“special materials”不符；B项“动物开车”未提及；C项“未来生活和今天一样”与原文“different from what it is today”不符；D项“VR技术让课堂更有趣”与原文“Classes will be more interesting with virtual reality (VR) technologies.”相符，故选D。
25题：全文围绕未来房屋、交通、教育等方面的变化展开，核心是未来生活的改变，对应选项C；A、B、D均为文中某一方面，不能概括全文，故选C。
【答案】21－25 BCDDC
【知识点】阅读理解（细节理解题）、阅读理解（主旨大意题）
【点评】本文是介绍未来生活变化的说明文，侧重考查学生的细节定位和主旨概括能力，题目难度适中，需准确抓取原文关键信息。
【难度系数】0.7