seem在課本中多次出現(xiàn)，基本含義是“似乎；好像；仿佛；看來”等，可作系動詞或不及物動詞。為了幫助大家掌握該詞，現(xiàn)將其主要用法小結(jié)如下：

一、seem可與形容詞、名詞、不定式（短語）、分詞及介詞短語搭配。

1. seem + 形容詞。如：

She seems quite happy today. 今天她似乎很高興。

2. seem + 名詞。如：

That seems a good idea. 那似乎是個好主意。

3. seem + 不定式（短語）。如：

He seems to be thinking about something. 他似乎正在考慮某事。

The policeman seemed to have known the truth. 那個警察似乎早已知道事情的真相。

注意：（1）不定式是to be并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。如：

She seems (to be) quite unhappy. 她看起來很不高興。

He seems (to be) a fool. 他好像是個傻子。

（2）seem后跟不定式時，要注意不定式所表示的動作發(fā)生的時間，以此來確定不定式的時態(tài)。如3中的to have known為不定式的完成時。

（3）seem的否定式可在不定式前直接加not或借助do的相應(yīng)否定形式來表達（放在seem前）。如：

They seemed not to know each other. 他們看起來好像互不認(rèn)識。

She doesn’t seem to like the idea. 她似乎不太喜歡這個想法。

4. seem + 分詞。如：

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。如：

They seemed in high spirits. 他們似乎情緒高漲。

二、seem常用于it作形式主語的結(jié)構(gòu)，即It seems / seemed that ...，表示“看來……；似乎……”。如：

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）seem后有時可跟形容詞。如：

It seems impossible that he will be here tomorrow. 明天他來這兒似乎是不可能的。

三、seem常用于由as if / though引導(dǎo)的從句中。如：

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(xiàn)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(jié)構(gòu)中，這種結(jié)構(gòu)常用來表示“行為”的主體。如：

It seems to me that they are right. 我感覺他們是對的。

五、用于There seems / seemed + to be + n. (主語)中。如：

There seems to be no work for you to do now. 看來現(xiàn)在沒有什么工作需要你做了。

注意：（1）在這一結(jié)構(gòu)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 thereare a lot of things to do.) 似乎有很多事情要做。

（2）這一結(jié)構(gòu)的否定形式為There seems / seemed to be + no + n.或There doesn’t / didn’t seem to be + n.。如：

There doesn’t seem to have been any difficulty on this question. 在這個問題上似乎沒出現(xiàn)什么困難。

小試牛刀：

根據(jù)第一句，完成第二句或第三句，每空一詞，句意不變。

1. She seems very sad.

She seems ______ ______ very sad.

It seems that ______ ______ very sad.

2.He seemed to be waiting for somebody.

It seemed that ______ ______ ______ for somebody.

3.Nobody seemed to have lost a child.

It seemed that ______ ______ _______ a child.

4.It seems that there will be no time for play now.

There ______ ______ _______ no time for play now.

Keys: 1.to be；she is 2.he was waiting3.nobody had lost 4. seems to be