987语法大全的一题，求详解

liwen0625

146. At a recent session, the French government has decided that Paris needs a second, larger opera house to complement the famous Paris Opera.

(A) has decided that Paris needs

(B) decided that Paris needs

(C) has decided that Paris will need

(D) decided that Paris has a need of（B）

(E) has decided that Paris needed

答案选B,我选A。后面用needs,我知道原因是描述一个事实没有问题，疑问就在前面为什么用一般过去时不用现在完成时。我认为法国政府的这个决定已经产生了影响，而不能用一般过去时描述过去发生的一个动作。

liwen0625

大牛们就不要潜水了，知道的就帮忙解答一下嘛

longee

at a recent session已经是明确的时间提醒了，XX  decided XX at a recent session.
理由2：有什么必要用完成时？

mr.ming

At a recent session表过去的一个时间点，故只能在B, D选，D用了need的名词形式，应用动词形式意思表达更清楚，准确。B is best.
常考的一般现在时的三种用法：
1. 表示客观事实：Aristotle said that the Earth rotates the Sun.2. 政府的决策行为：French government decided that Paris needs....3. 科研成果，统计资料。
决定的事情，是发生在做决定这个时间之后，所以decide是过去时，that后用现在时是可以的，又如：
She has decided that she will be a doctor.前面是现在完成时，后面就用了将来时。