There are two windows in his bedroom. ____ of them face south, overlooking a beautiful park. ❌
answer
one ❌
Both ✅
他的卧室有两扇窗，两扇都朝南，俯瞰着美丽的公园。
关键语法点：代词 "both" 与 "one" 的数量一致性
正确答案：Both
错误选项：one
深度解析：
1. 为什么不能用 "one"？
动词形式冲突：
- 原句动词为 face（复数形式），而 one of them 要求动词用单数 faces。
- ❌ 错误句：
One of them face south → 动词应为 faces（单数）。 - ✅ 正确结构：
One of them faces south（一扇朝南）或 Both of them face south（两扇都朝南）。
逻辑矛盾：
- 若用 one，句子含义为“两扇窗中有一扇朝南”，但后半句 overlooking a beautiful park 暗示两扇窗共同作用形成开阔视野，更符合“两扇都朝南”的逻辑。
2. 为什么用 "both"？
- 数量一致性：
- 前句明确提到 two windows，后句用 both of them 表示“两者都”，与复数动词 face 完全匹配。
- 例句：
Both of my parents are teachers.（我的父母都是老师 → 两者全包含）。
对比练习：
| 错误句 | 正确句 | 关键差异 |
|---|---|---|
| One of them face south. | Both of them face south. | 动词单复数一致性 |
| One of the books are interesting. | One of the books is interesting. | 动词需单数 |
语法规则总结
- "one of + 复数名词" → 动词用单数
- 例：One of the students has a red bag.
- "both of + 复数名词" → 动词用复数
- 例：Both of the students have red bags.
自测练习
- There are three apples on the table. ____ of them is rotten. ✅
答案
答案：One（单数动词 “is”）
- I have two cats. ____ of them love fish. ✅
答案
答案：Both（复数动词 “love”）
- She bought five dresses. ____ of them fits me well. ❌
答案
one ❌
答案：None（单数动词 “fits”，否定句）
DeepSeek Analysis
记忆口诀
“one 配单数，both 配复数；
动词形式别搞错，逻辑一致更稳妥！” ✨