吳靜
1. already與yet的區(qū)別
already用于肯定句句中,表示“已經(jīng)”;yet用于否定句句末,表示“還”,用于疑問句句末,表示“已經(jīng)”。如:
He had already left when I called.當(dāng)我給他打電話時,他已經(jīng)離開了。
Have you found your ruler yet?你已經(jīng)找到你的尺子了嗎?
I havent finished my homework yet.我還沒有完成作業(yè)。
2. so與such的區(qū)別
(1)so修飾形容詞或副詞;such 修飾名詞。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. 他是一個這樣的孩子。
(2)so修飾的形容詞后可以有一個單數(shù)的可數(shù)名詞,其結(jié)構(gòu)是“so + 形容詞 + a / an + 可數(shù)名詞單數(shù)”。such可以修飾可數(shù)名詞單復(fù)數(shù)和不可數(shù)名詞,名詞前可以有形容詞作定語,其結(jié)構(gòu)是“such + a / an + 形容詞 + 可數(shù)名詞單數(shù)”“such + 形容詞 + 可數(shù)名詞復(fù)數(shù) / 不可數(shù)名詞”。如:
他是一個如此聰明的孩子。
He is so clever a boy. = He is such a clever boy.
這么冷的天氣。
It is such cold weather. (正)
It is so cold weather. (誤)
他們是那么好的學(xué)生。
They are such good students. (正)
They are so good students. (誤)
(3)如果可數(shù)名詞復(fù)數(shù)前有many,few或不可數(shù)名詞前有much,little修飾,用so不用such。如:
so many(如此多的),so few(如此少的),可以加可數(shù)名詞復(fù)數(shù)。
so much(如此多的),so little(如此少的),可以加不可數(shù)名詞。
3. also, too, as well與either 的區(qū)別
also,as well,too用于肯定句,also常用于be動詞、情態(tài)動詞、助動詞之后,行為動詞之前;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.
我爸爸是一名老師,我媽媽也是。
I cant speak French, Jenny cant speak French,either. 我不會說法語,詹妮也不會。
4. sometime, sometimes, some time與some times的區(qū)別
sometime 某一時間,某一時刻(可指將來時,也可指過去時)
sometimes 有時,間或
some time 一段時間
some times 幾次,幾倍
如:Well have a test sometime next month.
下個月的某一時間,我們要進(jìn)行一次測試。
Sometimes we are busy and sometimes we are not. 有時我們很忙,有時不忙。
He stayed in Beijing for some time last year. 他去年在北京待了一段時間。
I have been to Beijing some times. 我去過北京好幾次。
5. ago與before的區(qū)別
ago表示以現(xiàn)在為起點的“以前”,常與一般過去時連用,不可以單獨使用。
before指過去或?qū)淼哪硶r刻“以前”,也可泛指以前,常和完成時連用,可以單獨使用。如:
I saw him ten minutes ago. 我10分鐘之前看到過他。
He told me that he had seen the film before. 他告訴我他以前看過這部電影。
6. now,just與just now的區(qū)別
now 與一般現(xiàn)在時、現(xiàn)在進(jìn)行時、現(xiàn)在完成時連用,意為“現(xiàn)在”。
just 與現(xiàn)在完成時、過去完成時連用,表示“剛……”。
just now 和過去時連用,表示“剛才”。
如:Where does he live now?他現(xiàn)在住哪里?
We have just seen the film. 我們剛看過這場電影。
He was here just now. 他剛才在這里。