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had done是什么用法
might
have
done是什么
意思?怎么用?
答:
might
have
done
(对过去的猜测)可能、究竟、到底(已经)……,也许已经做了某事(语气比较委婉,可能性不如may have done大);也表示本来应该(能够、可以)做某事而实际上没有做(表示虚拟语气)。例句:The only dark cloud on the horizon was that they might have to move house.唯一的忧虑...
has to be
done是什么
时态
答:
1. 短语翻译:必须要做的;必须被做的。2. 分析这个短语:
have
to do sth 的三单形式 has to,动词词组 be
done
,和to构成不定式形式,被动式。3. 重点短语:have to,必须;不得不;只好;其它词形:三单形式 has to;过去式
had
to;将来时 will have to;
用法
:1.)主动形式后面接动词...
had
better的
用法
答:
had
better 是一个固定搭配,相当于一个情态动词。1.had better后面必须跟动词原形。had better后跟动词原形(即不带to的不定式),构成had better
do
sth.句型。这里的had不能用
have
来替换。例句:You'd better go to hospital at once.你最好立即去医院看病。2.主语不论是第几人称,句子不论
是什么
...
have
todo还是have
done
?
答:
3、
have
sth
done
,只是表示某事情被做,一般指已经做过的事情.而have sth to be done 和 have sth to do,使用动词不定式to表示动作将要发生,要去做的事情目前还没有做.I have
had
my hair cut.我已经把头发剪掉了.have sth done 三个
用法
:1、表示请(让)别人做某事.如:We had the machine...
must
have
done
的
用法
答:
包括四种常用
用法
,must
have
done
sth.、can/could have done sth.、can't/couldn't have done sth.、ought to/should have done sth.。一、must have done sth.一定做某事。表示对过去事情的较有把握的推测,这时只能用在肯定句中,“肯定/必须已经干过…”,在否定句和疑问句中用can't或...
have
sth
done什么
意思?
答:
3、
have
sth
done
,只是表示某事情被做,一般指已经做过的事情.而have sth to be done 和 have sth to do,使用动词不定式to表示动作将要发生,要去做的事情目前还没有做.I have
had
my hair cut.我已经把头发剪掉了.have sth done 三个
用法
:1、表示请(让)别人做某事.如:We had the machine...
had
been与has been
用法
有何区别
答:
这两个词的区别我知道,"Has been"表示从过去延续到现在的动作或状态,常用于现在完成时,与第三人称单数主语连用;而"
Had
been"表示在过去某个时间点之前已经发生并完成的动作或状态,常用于过去完成时,可与任何人称的主语连用。先来看看它们的基本意思吧!下面来看看它们的区别有哪些吧!1、时态和...
had
better后面要考虑
have
done
的形式吗
答:
七、在祈使句中,
had
有时可以省略.例如:Better not do it.最好别做那种事.Better not wait for them.最好不要等他们.八、 had better 的被动式.例如:You had better
have
done
it.→ It had better have been done.九、 had better 在间接引语中的
用法
.在直接引语变为间接引语的过程中,...
must
have
done是什么
意思
答:
对过去的事情一种肯定的猜测、推测)。如:He said I must
have
done
something bad to deserve it.他说我肯定是罪有应得。That car must have cost a packet.那辆汽车一定花了一大笔钱。I think we must have taken a wrong turning somewhere.我觉得我们一定是在
什么
地方拐错了路。
worth worthy worthwhile 分别有
什么用法
?三者有什么区别?
答:
【例句2】This book is worth reading.2、worthy adj&n.有价值的,值得...的,做形容词时既可以做表语又可以作定语 【句型1】be worthy of +n.【例句2】He is worthy of our praise.【句型2】be (quite)worthy of being
done
(很)值得做... :【例句2】The film is worhty of being ...
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