- 试题详情及答案解析
- The old man knows the number of the birds here by ________ once a year．
| A．doing a bird count | B．feeding them every day |
| C．watching them | D．teaching them to speak |
- 答案：A
- 试题分析：句意：这个老人通过每年数鸟的数量来知道鸟的多少。A．doing a bird count 数数； B．feeding them every day[来每每天喂它们；C．watching them观看它们；D．teaching them to speak教它们说话。结合句意，故选A
考点：考查非谓语动词的用法。