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were able to
be
able
to
和was/
were
able to 有什么不同,分别用在什么地方?
答:
回答:be able to和was/
were able to
的区别在于时态的不一样。was/were able to 的区别在于主语单复数的不一样。
这个句子中的
were
able
to
为什么不能用could代替?
答:
be able to
表示有能力做某事,句意“在消防员的帮助下,他们才能(有能力)出来”can这种表示一般性能够怎样的词在此用就不合适了 with……句作条件状语从句
can和
be
able
to
的区别?
答:
文章探讨了can和
be
able
to
在表达能力及可能性上的区别。can主要表示现在和过去的能力,过去时态用could,而be able to则适用于各种时态,包括过去、现在和未来。它在句中的位置较为灵活,可用于助动词后、情态动词后、表示特定过去动作、条件表达以及成功完成某事时。be able to用was/
were
able to表示...
be
able
to
和was/
were
able to 有什么不同,分别用在什么地方?
答:
be able to是通用模式was/
were able to
是过去时态,只用于过去时
be
able
to
和can的用法区别
答:
be
able
to
可以有各种时态;而can只有一般现在和一般过去两种时态。can可用于表示可能性,推测,允许等情况,而be able to通常不这样用。这一点不同主要集中在过去时中,could表示“能够”,was /
were
able to表示“得以做成”,即后者的动作完成了,前者只是一种可能性。双语例句:1、She can sing...
could & was/
were
able
to
do 的区别
答:
could(过去式) can
be
able
to
都翻译为“能”,表示先天或后天学到的能力、技能 用法:过去能: could was/
were
able to+V(原形)Could表示过去具备做某事的能力,不表示行动、行为 Was/were able to 表示过去成功的做了某事(已做而且成功)Couldn’t:表示过去没有能做成某事情...
were
able
to
后加什么词性?
答:
加动词原形,
请教英语语法: 情态动词could和was/
were
able
to
的区别
答:
was
able
to
explain what had happened. 虽然飞行员受了重伤他却能解释发生了什么。(他能解释并做了解释这个行为)The boat capsized quite near the bank so the children
were
able to swim to safety. 船在离岸边非常近的地方翻了,所以孩子们能够用到安全的地方。(他们有能力并且游泳了。)...
can和
beable
to
有什么区别?
答:
区别:1. can只有两种时态, 即can 和could, 而
be
able
to
有多种时态, 如was/
were
able to, will/shall be able to, have/has been able to等:I’ll be able to drive the car in a week.Through his diligent work, the deaf-mute has been able to read and write in a sign ...
could与
be
able
to
有什么不同
答:
(2)只用
be
able
to
。a. 位于助动词后。b. 情态动词后。c. 表示过去某时刻动作时。d. 用于句首表示条件。e. 表示成功地做了某事时,只能用was/
were
able to, 不能用could。注意:could不表示时态(1)提出委婉的请求,(注意在回答中不可用could)。(2)在否定,疑问句中表示推测或怀疑。2...
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