英语语法请教

Question

yet、already分别在什么情况下用
as soon as、no sooner than、hardly……when的区别
解释的不要太多，经典点就好
谢谢
yet、already都有已经的意思，怎么区别
如：----Have you heard from your pen-friend______?
----NO,but I have _____ sent her another card.
A、yet B、already

Answer 1

already 与yet 都可解作"已经"。already主要用于肯定的陈述句中,通常与动词的完成时或进行时连用。例如: Our visitors have come already.来宾已到。 When she hurried into her classroom,Mr Black was already beginninghis lesson.她匆匆走进教室时,布来克先生已经开始上课了。 有时也可以和一般现在时或过去时连用,但其动词是延续性的。例如: It is already six.已经六点了。 already也可用在疑问句中,常暗示说话人的"惊奇","意外"。例如: Have you already had breakfast?难道你已经吃过早饭了?
yet通常与一般现在时或现在完成时连用,多用于疑问句中。例如: Has she decided yet?她已经决定了吗? Is breakfast ready yet?早饭准备好了吗?
as soon as、no sooner than、hardly……when这三个短语都有“一……就”、“刚刚……就”的意思，它们的意思非常相近，因此有时可以互换。例如：
“我刚到公共汽车站，汽车就开了。”一句，就可以有如下几句译法：
As soon as I got to the bus stop, the bus started.
Hardly had I got to the bus stop when the bus started.
No sooner had I got to the bus stop than the bus started.

但他们之间也有一些差异，例如，如果从两件事情的间隔时间来说，as soon as 较长，no sooner...than
居中，hardly...when 间隔时间最短。其它的一些区别见下面，请大家在运用的时候要留意。

英语教师团队

Answer 2

yet,already 用于现在完成时态

as soon as , no sooner than, hardly 一。。。就

I went for a walk as soon as I finished my work.
Hardly had I finished my work when I went for a walk.
No sonner had I finished my work than I went for a walk.