(
课件网) Lesson 7 Planting Trees ● 考点集训/夯实基础 ● 综合检测/巩固排查 Ⅰ. 根据句意及汉语提示写单词。 1. We made a _____ ( 洞 ) and it was big enough to hold the roots of the seedling. 2. As we all know, China is a _____ (大的) country with a long history. 3. When the _____ (暴风雨) came yesterday, the wind blew away most of the dust. 4. In winter, people _____ (覆盖) their faces with their scarves. 5. Further down at the _____ (底部) of the page, you can find other information about the city. Lesson 7 Planting Trees hole large storm cover bottom Lesson 7 Planting Trees Ⅱ. 用括号中所给词的适当形式填空。 6. My sister swept the floor yesterday because it was very _____ (dirt). 7. The worker _____ (fill) the hole with dirt and packed the dirt around the new tree. 8. In winter, the temperature is usually very low in the _____ (north) part of China. 9. It’s dangerous for children _____ (cross) the busy street. dirty filled northern to cross Lesson 7 Planting Trees Ⅲ. 根据汉语意思完成句子，每空一词。 10. 没有人确切知道他出了什么事。 No one knows _____ _____ what happened to him. 11. 杯子的底部有一些糖。 There is some sugar _____ _____ _____ _____ the glass. 12. 顺便说一下，你不应该在吃饱的时候运动。 _____ _____ _____, you shouldn’t take exercise on a full stomach. 13. 当气温降到零度以下时，空气中的水可能会变成雪。 When the temperature falls below 0℃, water in the air may _____ _____ snow. for sure in the bottom of By the way turn into Lesson 7 Planting Trees 14. 在你离开之前，别忘了再给它装满水！ Don’t forget to _____ it _____ water again before you leave! fill with Lesson 7 Planting Trees Ⅳ. 阅读理解。 Trees in cities“live fast but die young” compared to forests in the countryside, warns a new study. Researchers found that trees in cities die younger than ones in the countryside because of the higher levels of CO2. City -living trees suffer (遭受) a loss of carbon storage (碳储量). That means trees produce less energy from the air. Lesson 7 Planting Trees Now researchers say more must be done to deal with the situation. Ian Smith, a PhD student of Boston University in the United States, said, “Cities are in the important position in fighting against rising temperatures and increasing CO2.” “We find that tree planting alone may not be enough to keep and increase city canopy cover (树冠覆盖率). Because of the age and size of the present canopy, efforts to improve and protect tree health are badly needed for increasing city tree cover and canopy cover.” Lesson 7 Planting Trees The research team used a model to watch changes among street trees for several planting and management methods. Researchers also used the model to watch tree growth, death and planting rates (率) both among trees in Boston city and forests in the countryside in Massachusetts. It was discovered that rates of carbon cycling and growth rates among city trees were nearly four times faster than those in the country ... ...
