seem用法總結(jié)
seem用作連系動(dòng)詞或不及物動(dòng)詞,意為“似乎、好像、看來”。
“主語+seem+(to be)+表語 ”
此時(shí)seem為連系動(dòng)詞,后直接接形容詞或to be+形容詞或名詞(短語)作表語,以說明主語的特征或狀態(tài)。如:
Tom seems (to be)a very clever boy. 湯姆看上去是一個(gè)很聰明的男孩。
Everything seems easy.一切似乎很容易。
注意:afraid,asleep,awake等表語形容詞不能直接跟在seem 之后,必須和seem to be 連用,如:They seem awake.(誤)應(yīng)改為:They seem to be awake.
“主語+seem +不定式(或不定式的完成式)”
此句型中的seem 用作不及物動(dòng)詞,不用在進(jìn)行時(shí)態(tài)中,其與不定式一起構(gòu)成復(fù)合謂語(不定式作賓語)。如:
a. The moon seems to change its shape. 月亮好像在變換形狀。
b. I seem not to be able to make him happy. 我似乎不能使他高興起來。
c. They seemed to be eating something. 他們好像在吃什么東西。
d. I seem to have caught a cold. 我似乎已經(jīng)感冒了。
注意:seem 后跟不定式(短語)時(shí),要注意不定式所表示動(dòng)作發(fā)生的時(shí)間,以此來確定不定式的時(shí)態(tài),如例c、d;seem 后不定式的否定式習(xí)慣上在seem 前加don’t ,也可以用seem not to...,如例b也可以說成:I don’t seem to be able to make him happy.
“seem +分詞”
a. Our teacher seemed stopped by the question. 我們老師似乎被問題難住了。
b. The news seems exciting. 消息似乎令人興奮。
注意:seem后用現(xiàn)在分詞還是過去分詞,取決于分詞本身的邏輯主語,如句子的主語是分詞的邏輯主語,用現(xiàn)在分詞,如例b;反之用過去分詞,如例a。
“seem+like+n/v-ing”
like在這里是介詞,此句式等于seem to be結(jié)構(gòu)。如:
It seems like years since I saw you last time.自從上次見到你,好像過了幾年。
The girl seems like /to be a happy bird.那女孩好似一只快樂的小鳥。
“seem+ 介詞短語”
They seem in high spirits .他們似乎境界很高。
seem 常用于it作形式主語的“It seems /seemed that...”結(jié)構(gòu)中
該結(jié)構(gòu)中it作形式主語,“that...”是真正的主語。此結(jié)構(gòu)可以用seem后接不定式來改寫。如:
It seems that you were lying. 好像你在說謊。
It seemed that he was ill, so I called in the doctor.
=He seemed (to be) ill, so I called in the doctor. 看來他病了,所以我請了醫(yī)生。
注意:It seems that... 從句中,that從句可以用陳述語氣,也可以用虛擬語氣;或者在seem后可以跟一個(gè)形容詞。如:
It seems impossible that he will be here tomorrow.他明天在這里好像不可能。
seem通常用在“It seems/seemed to sb (that)…”結(jié)構(gòu)中,這種結(jié)構(gòu)用來表示“行為”的主體。如:
It seems to us a good chance. 對我們來說似乎是一個(gè)好機(jī)會(huì)。
It seems to me everything is all right.對我來說似乎一切都不錯(cuò)。
seem也常用于“ There seem(s) to be+名詞”結(jié)構(gòu)中,to be可省略, seem的單復(fù)數(shù)形式要根據(jù)后面主語的名詞單復(fù)數(shù)形式而定。如:
a. There seems to be no need to wait longer.似乎沒有必要再等待了。
b. There doesn’t seem to be too much hope of our team beating theirs.看來我們戰(zhàn)勝他們隊(duì)沒有多大希望了。
注意:
(1)此結(jié)構(gòu)中seem表示 “似乎有;好像有……”,可以和It seems as if...轉(zhuǎn)換。如:
There seem to be a lot of things to do.=It seems as if there are a lot of things to do.
(2)“Thereseem(s) to be +名詞”這一結(jié)構(gòu)的否定形式為“There seem(s) to be +no+名詞”,如例a; 或“There doesn’t seem to be +名詞”,如例b。
seem常用于由as if/though引導(dǎo)的從句中
a. It seems as if it was/were spring already.好像已經(jīng)是春天了。
b. It seems as though our plan will be perfect.似乎我們的計(jì)劃很完美。
注意:這種句式中,如果從句所敘述的事情實(shí)現(xiàn)的可能性較大或可以被設(shè)想為事實(shí),從句的謂語用陳述語氣,如例b;若實(shí)現(xiàn)的可能性小或根本不可能實(shí)現(xiàn),從句用虛擬語氣,如例a。
seem 有時(shí)和人稱代詞I連用,意為“感到好像,覺得似乎”。如:
a. I seem unable to solve it right now. 看來我無法立即解決它。
b. I seem to have seen him somewhere before.我覺得以前在什么地方見過他。