
吕老师为您分享以下优质知识
当一般疑问句中缺少be动词时,可以通过以下方法进行改写:
一、根据谓语动词类型选择助动词
实义动词
若谓语是实义动词(如eat, run, like等),需在句首添加助动词do/does/did,并将动词还原为原形。 - 例:
- 原句:She likes music.
- 改写:Does she like music?
情态动词
若谓语是情态动词(如can, must, should等),直接将情态动词提前至句首,主语随后。 - 例:
- 原句:He can swim.
- 改写:Can he swim?
二、注意事项
be动词的替代
若原句中有be动词(如am/is/are),需根据主语变化选择do/does/did替代be动词,但be动词不可省略。 - 例:
- 原句:They are students.
- 改写:Are they students?
特殊动词处理
动名词(如playing, reading)或过去分词(如have/has done)作谓语时,仍需用do/does/did提问,be动词不参与提问。 - 例:
- 原句:She likes reading.
- 改写:Does she like reading?
三、完整示例
| 原句 | 改写(含be动词) | 改写(无be动词) |
|------|------------------|------------------|
| The cat sleeps on the mat. | Does the cat sleep on the mat? | Is the cat sleeping on the mat? |
| They can play soccer every weekend. | Can they play soccer every weekend? | [无be动词] |
| I have finished my homework. | Did I finish my homework? | [无be动词] |
通过以上方法,可灵活处理不含be动词的一般疑问句改写。