never,ever,already,just,yet,for,since的用法。我在写现在完成时专练，结果发现没一题会的。。。 请教英语高手<ever,just,already,never...

already \uff0cyet\uff0cnever\uff0cever\uff0cfor\uff0csince\u5728\u73b0\u5728\u5b8c\u6210\u65f6\u4e2d\u7684\u7528\u6cd5

I
have
already
finished
the
work.\u6211\u5df2\u7ecf\u5b8c\u6210\u4e86\u5de5\u4f5c\u3002
I
haven't
finished
the
work
yet.\u6211\u8fd8\u6ca1\u6709\u5b8c\u6210\u5de5\u4f5c\u3002
I
haven't
never
finished
the
work.\u6211\u4ece\u6765\u90fd\u6ca1\u6709\u5b8c\u6210\u8fc7\u5de5\u4f5c\u3002
I
haven't
ever
finished
the
work\u3002\u6211\u66fe\u7ecf\u5b8c\u6210\u8fc7\u5de5\u4f5c\u3002
I
have
finished
the
work
for
a
day.\u6211\u5df2\u7ecf\u5b8c\u6210\u5de5\u4f5c1\u5929\u4e86\u3002
I
have
finished
the
work
since
you
came
back.\u81ea\u4ece\u4f60\u56de\u6765\uff0c\u6211\u5c31\u5df2\u7ecf\u5b8c\u6210\u4e86\u5de5\u4f5c\u3002

\u4ee5\u4e0a\u51e0\u4e2a\u90fd\u662f\u526f\u8bcd\uff0c\u662f\u7528\u6765\u8868\u793a\u67d0\u4e00\u4e2a\u65f6\u95f4\u6216\u8005\u65f6\u95f4\u6bb5\u6240\u7528
ever \u66fe\u7ecf \u5c31\u662f\u8bf4\u53e5\u5b50\u4e2d\u51fa\u73b0\u8fd9\u4e2a\u8bcd\uff0c\u4e00\u822c\u90fd\u662f\u7528\u8fc7\u53bb\u5f0f\uff0c\u53d1\u751f\u7684\u4e8b\u4e0d\u662f\u73b0\u5728\u800c\u662f\u8fc7\u53bb\u7684 He was ever a bad boy \u4ed6\u66fe\u7ecf\u662f\u4e2a\u574f\u7537\u5b69

just \u8868\u793a\u521a\u521a\uff0c\u6b63\u597d\uff0c\u6070\u597d\u3002A\uff1aDid you see Tom\uff1f B\uff1aYes\uff0che just went home A\uff1a\u89c1\u5230\u6c64\u59c6\u4e86\u5417\uff1f B\uff1a\u662f\u7684\uff0c\u4ed6\u521a\u521a\u56de\u5bb6\u53bb\u4e86\u3002\u8fd9\u4e2a\u65f6\u95f4\u4e5f\u8868\u793a\u8fc7\u53bb\u4e86\uff0c\u7528\u4e00\u822c\u8fc7\u53bb\u5f0f \u8fd9\u4e2ajust \u8fd8\u6709\u4e00\u4e2a\u7528\u6cd5\uff0c\u4f60\u8bfb\u4e00\u4e0b\uff0cJust go\uff01\u8d70\u5427\uff01\u8fd9\u91cc\u8fd9\u4e2ajust\u5c31\u4e0d\u662f\u8868\u793a\u65f6\u95f4\u4e86\uff0c\u4e0d\u662f\u8bf4\u521a\u521a\u8d70\uff01\u8fd9\u662f\u52a0\u5f3a\u8bed\u6c14\u7684\u7528\u6cd5\u4e86\u3002

already \u548c yet \u53ef\u4ee5\u8bf4\u5728\u73b0\u5728/\u8fc7\u53bb\u5b8c\u6210\u65f6\u90fd\u53ef\u4ee5\u7528\u5f97\u4e0a\u7684\uff0calready\u4e00\u822c\u662f\u7528\u5728\u80af\u5b9a\u53e5\uff0cyet\u662f\u7528\u5728\u5426\u5b9a\u53e5\uff0cI have already finished my homework\u6211\u5df2\u7ecf\u5b8c\u6210\u4f5c\u4e1a\u4e86\u3002I haven't finished my homework yet\u6211\u8fd8\u672a\u5b8c\u6210\u4f5c\u4e1a\u5462\uff01

for\u4e00\u822c\u7528\u5728\u73b0\u5728/\u8fc7\u53bb\u5b8c\u6210\u65f6\u8868\u793a\u4e00\u4e2a\u65f6\u95f4\u6bb5\uff01\u5b83\u672c\u8eab\u4e0d\u7528\u7ffb\u8bd1\u6210\u4e2d\u6587\u610f\u601d\uff0c\u4ec5\u4ec5\u7528\u6765\u8854\u63a5\u4e00\u4e2a\u65f6\u95f4\u6bb5\uff01
\u4f8b\u5982\uff1aHis father died three years ago \u4ed6\u7236\u4eb2\u4e09\u5e74\u524d\u5c31\u53bb\u4e16\u4e86 \uff0c\u8fd9\u662f\u4e00\u822c\u8fc7\u53bb\u5f0f
\u8f6c\u6362\u6210\u73b0\u5728\u5b8c\u6210\u65f6\uff1a
His father have been dead for three years \u4ed6\u7236\u4eb2\u5df2\u7ecf\u6b7b\u4e86\u4e09\u5e74\u4e86\u3002\u8868\u793a\u4e00\u4e2a\u65f6\u95f4\u6bb5
\u53c8\u5982\uff1aI have been in love with her for five year \u6211\u4e0e\u5979\u76f8\u604b5\u5e74\u4e4b\u4e45\u4e86
\u4e5f\u5c31\u662f\u8bf4 \u6211\u57285\u5e74\u524d\u5c31\u5f00\u59cb\u8ddf\u5979\u76f8\u604b\u4e86 I felt in love with her five years ago

Since \u4ece\u90a3\u65f6\u8d77\u4e00\u76f4\u5230\u73b0\u5728 \u5b83\u4e5f\u8868\u793a\u4e00\u4e2a\u65f6\u95f4\u6bb5\uff0c\u6240\u4ee5\u5b83\u4e5f\u901a\u5e38\u51fa\u73b0\u5728\u201c\u73b0\u5728/\u8fc7\u53bb\u5b8c\u6210\u65f6\u201d\u53e5\u5b50\u5f53\u4e2d
\u4f8b\u5982\uff1aHe haven't been happy since his father died \u4ece\u4ed6\u7236\u4eb2\u8fc7\u4e16\u5230\u73b0\u5728\uff0c\u4ed6\u4e00\u76f4\u6ca1\u5f00\u5fc3\u8fc7\u3002

这些都是现在完成时的时间标准，前四个都是用在肯定句，yet用于疑问句和否定句，for/since表示段时间，都是时间标志

你好，满意请采纳，不懂请再问，O(∩_∩)O谢谢！

never,从不
ever,曾经
already,已经（句尾）
just,刚刚，用于肯定
yet,刚刚，用于否定与疑问
for,后接一段时间
since，自从，后接点时间（具体时间点）

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