吴静
1. already与yet的区别
already用于肯定句句中,表示“已经”;yet用于否定句句末,表示“还”,用于疑问句句末,表示“已经”。如:
He had already left when I called.当我给他打电话时,他已经离开了。
Have you found your ruler yet?你已经找到你的尺子了吗?
I havent finished my homework yet.我还没有完成作业。
2. so与such的区别
(1)so修饰形容词或副词;such 修饰名词。如:
My brother runs so fast that I cant follow him.
我弟弟跑得那么快,以至于我跟不上他。
He is such a boy. 他是一个这样的孩子。
(2)so修饰的形容词后可以有一个单数的可数名词,其结构是“so + 形容词 + a / an + 可数名词单数”。such可以修饰可数名词单复数和不可数名词,名词前可以有形容词作定语,其结构是“such + a / an + 形容词 + 可数名词单数”“such + 形容词 + 可数名词复数 / 不可数名词”。如:
他是一个如此聪明的孩子。
He is so clever a boy. = He is such a clever boy.
这么冷的天气。
It is such cold weather. (正)
It is so cold weather. (误)
他们是那么好的学生。
They are such good students. (正)
They are so good students. (误)
(3)如果可数名词复数前有many,few或不可数名词前有much,little修饰,用so不用such。如:
so many(如此多的),so few(如此少的),可以加可数名词复数。
so much(如此多的),so little(如此少的),可以加不可数名词。
3. also, too, as well与either 的区别
also,as well,too用于肯定句,also常用于be动词、情态动词、助动词之后,行为动词之前;as well,too用于句末;either用于否定句中,置于句末。如:
My father is a teacher. My mother is also a teacher.
=My father is a teacher. My mother is a teacher as well.
=My father is a teacher. My mother is a teacher,too.
我爸爸是一名老师,我妈妈也是。
I cant speak French, Jenny cant speak French,either. 我不会说法语,詹妮也不会。
4. sometime, sometimes, some time与some times的区别
sometime 某一时间,某一时刻(可指将来时,也可指过去时)
sometimes 有时,间或
some time 一段时间
some times 几次,几倍
如:Well have a test sometime next month.
下个月的某一时间,我们要进行一次测试。
Sometimes we are busy and sometimes we are not. 有时我们很忙,有时不忙。
He stayed in Beijing for some time last year. 他去年在北京待了一段时间。
I have been to Beijing some times. 我去过北京好几次。
5. ago与before的区别
ago表示以现在为起点的“以前”,常与一般过去时连用,不可以单独使用。
before指过去或将来的某时刻“以前”,也可泛指以前,常和完成时连用,可以单独使用。如:
I saw him ten minutes ago. 我10分钟之前看到过他。
He told me that he had seen the film before. 他告诉我他以前看过这部电影。
6. now,just与just now的区别
now 与一般现在时、现在进行时、现在完成时连用,意为“现在”。
just 与现在完成时、过去完成时连用,表示“刚……”。
just now 和过去时连用,表示“刚才”。
如:Where does he live now?他现在住哪里?
We have just seen the film. 我们刚看过这场电影。
He was here just now. 他剛才在这里。