英语单项选择题.1.—Did you see Tom at the party?—No,he___by the time

英语单项选择题.
1.—Did you see Tom at the party?
—No,he___by the time I got there.
A:left B:was leavlng C:had left D:has left.
2.___more,and you'll improve your spoken English.
A:Speak B:Speaks C:Speaking D:To speak.
3.Tom said it was at least five years since he___a good drink.
A:enjoyed B:was enjoying C:had enjoyed D:would enjoy.
也一起写出来。

答：
第一题,C,没异议.
第二题,是A,祈使句+and+陈述句（will +V),不少TX以为是动名词作主语,选了C,错!
第三题有争议.
3.Tom said it was at least five years since he___a good drink.
A:enjoyed B:was enjoying C:had enjoyed D:would enjoy.
答：本题考从句中的时态.
为增加难度,为题目创新,出题者加上了一个Tom said,从而在宾语从句中又出现了时间状语从句.
先考查简单的：
It is at least five years since he ______a good drink.
A:enjoyed B:was enjoying C:had enjoyed D:would enjoy.
答：A
译：他至少有五年没有痛痛快地唱酒了.
析：本题句改自《Longman》上的一个经典例句：
It's been years since I enjoyed myself so much as last night.
我已经有很多年没有象昨晚那么痛快了.
由于其句意翻译与众不同,后来衍生出好多这样的题句.主要是讲since从句的谓语是延续性动词时的翻译问题,不在此展开.
我想说的是：It has been some time since sth.happened.是一个很有用的句型.
意为：自从某件事性发生以来,到现在已经有多久了.since表示“自.以来,到现在为止”,主句用现在完成时态（这里的has been)与我们以前学习的现在完成时态语法知识相符合.
值得注意的是：现在这个句型已经演变为：
It is some time since sth.happened.了.
原题句=It has been at least 5 years since he enjoyed a good drink (last time).
意思是说：自从他上（一次）痛痛快地唱酒以来,到现在为止,已经有5年了.直到说话的那一刻,他才又这么痛快的喝酒.他自己是这么说的：
He said,"It is (=has been) at least 5 years since I enjoyed a good drink."
现在,将它转述一下,（改为间接引语,也就是宾语从句）
--> He said that it was (=had been) at least 5 years since he enjoyed a good drink.
请注意：主过从过,时态一致,直接引语变成间接引语时,要变成过去时态的是主句中的谓语（is-->was,has been-->had been) ,不是将since 从句中的过去时态变成过去完成时态.
请大家复习一下别的带有since 从句的现在完成时的句子变成间接引语时的时态变化：
sb.has done sth.since sth.happened.--> He said that he had done sth.since sth.happened.
是指“自从（过去）某事发生以来,到他说话时为止（另一过去时间）,他一直在做某事.
例如：He said he had been a teacher since he graduated from XX university.(since 1997)
他说自从XX大学毕业以来（自从1997年以来）他一直当教师.
since从句还是一般过去时吧?!
所以本题的“正确”答案应该是A.
不过,我很可能不得分.选C的TX很可能得分.问楼主去.
我估计出题者自己都没有真正弄懂这个句型.
再问： 可是正确答案是C......我们老师说是过去的过去，用过去完成时......
再答： 不是“正确”答案，是参考答案。是“标准”答案。我上面已经指出了。 那是根据主过从过，时态后退，机械变过来的。is-->was, enjoyed-->had enjoyed 须知It is some time since sth. happened 是It has been some time since sth. happened变过来的。 而后面这句话变成间接引语时，如果机械地改时态，是has been-->had been, happened--> had happened --> sb. said that it had been some time since sth. had happened 也对吧。 但是sb. said that it had been some time since sth. happened 比上一句更好，因为两个过去完成时，并不能表示那一个更前 从应试来看，选C比较保险。