seem在英語單詞中的用法歸納
seem作系動詞時有“似乎”或“好像”之意。seem表示對某事物做出判斷時雖有一定的根據，但仍然有所懷疑，着重於說話人的主觀感覺。下面是小編整理的一些關於seem的用法， 希望讓大家更好地認識seem這個單詞，提高英語水平。
一、seem常用於it作形式主語的結構，即It seems / seemed that..., 表示“看來……，似乎……”。
It seems that nobody knew what had happened. 似乎沒人知道發生了什麼事。
It seems that he was late for the train. 看來他沒趕上火車。
注意：1)在這一句式中，常可省去that。
2)在seem後間或可跟形容詞。
It seems impossible that he will be here tomorrow. 明天他來這兒似乎是不可能的。
二、seem可與形容詞、名詞、不定式(短語)、分詞及介詞短語搭配。
1. seem + 名詞
That seems a good idea. 那似乎是個好主意。
She seems a clever girl. 她似乎是個聰明的女孩。
2. seem + 形容詞
She seems quite happy today. 今天她似乎很高興。
3. seem + 不定式(短語)
He seemed to have known the truth. 他似乎早已知道事情的真相。
He seems to be thinking about something. 他似乎正在考慮某事。
Something seemed to be wrong with the train. 火車好像出了故障。
注意：1)不定式是to be並以名詞或形容詞作表語時，to be通常可以省略。這樣就變成1，2的用法。
He seems (to be) a fool. 他好像是個傻子。
She seems (to be) quite unhappy. 她看起來很不高興。
2)seem後跟不定式時，要注意不定式所表示動作發生的時間，以此來確定不定式的時態。如3中的to have...爲不定式的完成時。
3)seem的否定式可在不定式前直接加not或藉助do的相應否定形式來表達(放在seem前)。
She doesn't seem to like the idea. 她似乎不太喜歡這個想法。
They seemed not to know each other. 他們看起來好像互不認識。
4. seem + 分詞
He seemed pleased at what I said. 聽了我的話，他似乎很高興。
The news seems exciting. 消息似乎很激動人心。
5. seem + 介詞短語
It seems like years since I last saw you. 自從上次我見到你似乎過去好多年了。
They seemed in high spirits. 他們似乎情緒高漲。
三、 seem常用於由as if / though引導的從句中。
It seems as if somebody is calling you. 好像有人在叫你。
It seems as though he were very stupid. 看來他似乎很笨。
注意：在as if / though引起的從句中，如果說的是非真實的情況，從句謂語用虛擬語氣，如上句he were very stupid。如果所述的情況實現的可能性較大，則從句的謂語常用陳述語氣。
四、 seem常用在“It seems / seemed to sb. (that)...”結構中，這種結構常用來表示“行爲”的主體。
It seems to me that we have been neglecting our duty. 我感覺我們對職責有所疏忽。
It seems to me that they are right. 我感覺他們是對的。
五、用於There seems / seemed + to be + n. (主語)中。
There seemed to be no work for you to do now. 看來現在沒有什麼工作需要你做了。
注意：1)在這一結構中，seem表示“似乎有;看來有”。如：
There seems to be a lot of things to do. (=It seems as if there were a lot of things to do.) 似乎有很多事情要做。
2)這一結構的否定形式爲“There seems / seemed to be + no + n.”或“There doesn't / didn't seem to be + n.”。
There doesn't seem to have been any difficulty on this question. 在這個問題上似乎沒出現什麼困難。
