What can we do to restore urban forests？Regular irrigation when possible may help keep pest populations under control. Planting tree species that are suitable to handle heat and drought stress would also reduce the occurrence of insect pest outbreaks.

【语篇解读】　本文主要介绍了城市中的森林使城市宜居，但是人类的活动对城市的树木产生了极大的影响，所以我们应该为保护城市树木采取行动。

1．What makes tree pests more successful in the city than in rural areas?

A．The warmer and rainy habitat.

B．The hotter and drier habitat.

C．The cooler and drier habitat.

D．The hotter and rainy habitat.

【答案】　B　细节理解题。根据第二段As cities and natural habitats become hotter and drier，damaging insects will become more abundant on urban trees. 可知，使城市中的害虫比农村地区更多的原因是越来越热和干燥的栖息地。故选B。

2．Urban forests make cities livable by ________.

A．providing people enough clean water

B．improving the living environment

C．offering people economic benefits

D．lowering the temperatures

【答案】　B　细节理解题。根据第三段They improve air and water quality，provide habitat for wildlife，cool down temperatures and beautify our environment. They make cities livable. 可知，要通过改善居住环境使城市森林使城市宜居。故选B。

3．According to the text，what results in the city trees' suffering?

A．Natural disasters. 　　B．Invisible forces.

C．Human activities. D．Natural evolution.

【答案】　C　细节理解题。根据第三段主要讲了人类的活动对城市的树