问题
单项选择题
| In most cases, you can transplant a tree successfully, at any time, if you follow the instructions for planting a tree. The most important thing is to dig out enough roots, but this process is difficult with a large tree. When you dig out the tree, leave a ball of earth around its roots. This ball of earth should measure about a foot wide for every inch of the tree trunk’s diameter. Dig deep enough to avoid cutting off too many taproots. It is wise to call in a professional tree expert to transplant a tree more than a few inches in trunk diameter. |
The taproots are ______.
A．the heaviest roots
B．the principal, deepest roots
C．the ball of earth
D．the same width as the trunk’s diameter
答案
参考答案：B
解析：
[分析]： 词义题型 此句问taproots的意思；根据第二段最后一句：Dig deep enough to avoid cutting off too many taproots．(尽量深挖，以免切断太多的主根)taproots不可能指“最重的根”、“泥团”、“树干直径的宽度”，因此只有选项B正确。