问题
选择题
When a pencil is partly in a glass of water, it looks as if ＿＿＿＿.
A．breaks
B．has broken
C．were broken
D．had been broken
答案
答案：C
as if引导的从句，如果所说内容与事实不相符时，常用虚拟语气。此题是一种自然现象，故应用一般过去时。注意比较It seems／looks as if it is going to rain.(看起来天将要下雨。)