Trees are useful to man in three important ways.
The first important way is that they provide man with food, wood and other products. Trees provide not only man with food, but also many animals with food. Without trees many animals could not live on the earth. It’s not easy for man to live on the earth without trees, either.
The second important way is that trees give us shade (阴凉). On a hot summer day, people are eager (渴望) to have a rest under a tree after they have a long walk. You can imagine how important the shade of a tree is to man and animals.
The third important way is that trees help to prevent droughts and floods (防止干旱和洪水). However, in many parts of the world, man doesn’t realize the third way. They cut trees down in large numbers. In the end they find that they have lost the best friends they had.
根据材料内容选择最佳答案。【小题1】How many important ways are trees useful to man?
| A．Two ways. | B．Three ways. | C．Four ways. | D．Five ways. |
| A．food | B．wood | C．some products | D．all the above(上面) |
| A．They give us food on a hot summer day. | B．They give us wood on a hot summer day. |
| C．They give us shade on a hot summer day. | D．They give us leaves on a hot summer day. |
| A．The men who cut down trees in many parts of the world. | B．The humans. |
| C．The men who enjoy the shade. | D．The men who enjoy the food. |
| A．What Is a Tree | B．How to Plant Trees |
| C．The Importance of Trees | D．How to Protect Trees |
