《2025年暑假大串联七年级英语科普版》

B
Scientists said many years ago that the Earth was getting warmer and warmer. Now they find something new in cities! In the US, they find that some cities become very hot in summer. For example, the temperature at the top of many buildings goes up to 50°C when it is 27°C in the streets!
China also has the same kind of problem. Every year people build factories or houses on fields. When people become richer, they buy more cars. And then people need more new roads. This all makes cities hotter.
It isn't easy to stop these. So people are thinking about other ways. Some city planners(规划者) think we should plant more trees on both sides of roads because trees make the temperature lower. So we should have more trees in our parks and squares. We should also paint the outside of buildings white. If we do this, they do not become so hot.
But people are still cutting down forests. This makes the problem worse. If we go on like this, we can't live on Earth anymore.
()1. What do scientists find now?
A. More cities become hot.
B. The Earth is getting warmer.
C. There are more new cities.
D. Cities are getting hotter.
()2. Why does the writer talk about China?
A. There are more factories in China.
B. Cities in China also become hot.
C. Cities in China are the hottest in the world.
D. People in China like building new roads.
()3. According to some city planners, we should ______ to make cities cooler.
A. plant more trees
B. buy fewer cars
C. paint the buildings
D. build fewer houses
()4. The underlined word "this" in the last paragraph means "______".
A. people being richer
B. there being more trees in cities
C. people still cutting down forests
D. there being more cities
()5. What does the writer want to tell us?
A. It isn't easy to live in cities.
B. We should save the Earth.
C. All cities have some problems.
D. Cities are getting worse.

答案： 1.D　2.B　3.A　4.C　5.B