问题
选择题
______ loud music in public is against the law in the UK.
A．Play
B．Having played
C．Playing
D．Being played
答案
答案：C
考查非谓语，动名词做主语相当于名词作用。句意：在英国公共场合大声演奏音乐犯法。
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______ loud music in public is against the law in the UK.
A．Play
B．Having played
C．Playing
D．Being played
答案：C
考查非谓语，动名词做主语相当于名词作用。句意：在英国公共场合大声演奏音乐犯法。
下图集气瓶中用滤纸折成的纸蝴蝶上喷洒了一种溶液，通入某种气体后，实验结果与预测的纸蝴蝶颜色变化不一致的是（ ）
| A | B | C | D | |
| 喷洒液 | 酚酞 | 紫色石蕊 | 酸性高锰酸钾 | 酸化的淀粉KI |
| 通入的气体 | NH3 | Cl2 | CH2=CH2(g) | NO2 |
| 预测的颜色变化 | 变为红色 | 最终褪色 | 褪色 | 无明显变化 |