yet是什么意思怎么用

yet

adv.

1. used in negative sentences and questions to talk about sth that has not happened but that you expect to happen（用于否定句和疑问句，谈论尚未发生但可能发生的事）：

(BrE) I haven't received a letter from him yet.

我还没有收到他的信呢。

(NAmE) I didn't receive a letter from him yet.

我还没有收到过他的信。

"Are you ready?" "No, not yet,"

“你准备好了吗?”“还没有。”

We don't yet know what really happened.

我们还不知道到底发生了什么。

We have yet to decide what action to take (= We have not decided what action to take)

我们尚未决定采取何种行动。

2. (used in negative sentences 用于否定句）now; as soon as this 现在；即刻；马上：

Don't go yet.

先别走。

We don't need to start yet.

我们不必马上开始。

3. used to emphasize an increase in number or amount or the number of times sth happens（强调次数或数量的增加）:

snow, snow and yet more snow

下雪，下雪，还要下雪

yet another diet book

又是一本关于节食的书

Prices were cut yet again (once more, after many other times).

物价再一次降低。

4. used to emphasize that sth is the best, longest, etc. thing of its kind made, produced, written, etc. until now/then 迄今为止，到当时为止（最好、最长等的）:

the most comprehensive study yet of his music

迄今为止对他的音乐最为全面的研究

It was the tallest building yet constructed anywhere.

这是到当时为止全世界所建的最高的建筑物。

5. from now until the period of time mentioned has passed 从现在起直至某一时间；还：

He'll be busy for ages yet.

他还要忙很长一段时间。

They wont arrive for at least two hours yet.

他们至少要过两个小时才能到。

6. used to say that sth could, might, etc. happen in the future, even though it seems unlikely （表示将来可能发生，尽管现在似乎没有可能）早晚，总有一天：

We may win yet.

我们迟早会赢的。

She could yet surprise us all.

总有一天，她会让我们都大吃一惊。

7. used to emphasize an increase in the degree of sth (=how bad, important, etc. it is)（强调程度的增加）更

a recent and yet more improbable theory

一个新近提出的但更加不切实际的理论

conj.

despite what has just been said 但是，然而

It's a small car, yet it's surprisingly spacious.

这辆汽车不大，然而却出奇地宽敞。

yet这个词可以用作连词、连接性状语或副词，如下列句子所示：

He offered no help, yet assumed his right to sell our project.

他没有提供帮助，但却认为有权出售我们的项目。（连词）

They stayed home. Yet they must have thought about coming.

他们待在家里了，不过他们一定想过要来。（连接性状语）

It hasn't come yet.

它还没到呢。（副词）

在第一个句子中，yet 相当于“but（但是）”；在第二个句子中它相当于“however（不过）”但它比原来两个词汇所形成的语气变化更轻一些；在第三个句子中，yet是“still（仍然还）”的温和替代词。与It still hasn't come（它还没到呢）相比较，选择yet而不是它的同义词，这是出于文体和强调方面的考虑，而且它为推论式写作提供了有用的替代词。在“朗文语法”语料库中，yet在学术文章中比在会话中要常见两倍以上。

副词yet与to结合，表明还没有发生的过程，或是将要通过的关卡：

The conductor has yet to confirm the terms of his Berlin contract.

乐队指挥还没有确认他的柏林合约的条款。

Their skills are yet to be tested in a tougher economic climate.

他们的技巧还有待于在更加严峻的经济环境中经受检验。

这些例子表明，yet to或许与助动词have或be的作用一样，但是在英国和美国的语料库中，带有have的结构要常见得多。那些带有动词be的结构占了BNC和CCAE中不到5%的例子。the best is yet to be（下一个会更好）这样的惯用语，以及This film is yet to be classified by...（这部电影还没有被……分类）这样的习惯用语似乎不会对常见用法产生太大的影响。