英语的虚拟语气She handled the instrument with care for fear that it

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/16 09:38:08

英语的虚拟语气
She handled the instrument with care for fear that it_____damaged.
A.were. B.may be C.should be D.would be
选C.为什么不是D呢?
另外一题不是虚拟语气的
I hope that by posting the letter now at midday, I shall ensure____
it before the weekend.
A. you receive
B. your receiving
C. you to receive
D. your having received
选B.我想问为什么不选A呢?宾语从句的that在这里不是应该可以省略吗?
for fear that clause唯恐，以免。从句用should加动词原形的虚拟语气，其中should可以省略，这是固定用法，所以不选D
想请问下would be为什么不可以表示虚拟语气?

for fear that clause唯恐,以免.从句用should加动词原形的虚拟语气,其中should可以省略,这是固定用法,所以不选D.
would be可以表示虚拟语气,但是在这里for fear that clause的虚拟语气用should加动词原形是固定用法,还有很多这样的词必须用这样的虚拟语气.例如：
He suggested we should go tomorrow.他建议我们明天去.
It is important that we should master English.对我们来说掌握英语是很重要的.
上面两句都是虚拟语气,should可以省略.只有这种特殊的词语（此处为suggest和important）用should加动词原形的虚拟语气时才是可以省略should的.其它should have done形式的就不可以.
第二题用宾语从句的话A的答案时态不对,应该用将来时,而它用的是一般现在时,不正确.所以直接用动名词作宾语.

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