seem一词在课本中多次出现。它的基本意思是“似乎；好像；仿佛；看来”等，可作不及物动词或连系动词。seem用法较为复杂，现归纳如下：
一、 seem可与形容词、名词、不定式(短语)、分词及介词短语搭配。
1. seem + 形容词
She seems quite happy today. 今天她似乎很高兴。
2. seem + 名词
That seems a good idea. 那似乎是个好主意。
She seems a clever girl. 她似乎是个聪明的女孩。
一、 seem可与形容词、名词、不定式(短语)、分词及介词短语搭配。
1. seem + 形容词
She seems quite happy today. 今天她似乎很高兴。
2. seem + 名词
That seems a good idea. 那似乎是个好主意。
She seems a clever girl. 她似乎是个聪明的女孩。
3. seem + 不定式(短语)
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. 他似乎正在考虑某事。
Something seemed to be wrong with the train. 火车好像出了故障。
注意：1)不定式是to be并以名词或形容词作表语时，to be通常可以省略。这样就变成1，2的用法。
He seems (to be) a fool. 他好像是个傻子。
She seems (to be) quite unhappy. 她看起来很不高兴。
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. 他似乎正在考虑某事。
Something seemed to be wrong with the train. 火车好像出了故障。
注意：1)不定式是to be并以名词或形容词作表语时，to be通常可以省略。这样就变成1，2的用法。
He seems (to be) a fool. 他好像是个傻子。
She seems (to be) quite unhappy. 她看起来很不高兴。
2)seem后跟不定式时，要注意不定式所表示动作发生的时间，以此来确定不定式的时态。如3中的to&为不定式的完成时。
3)seem的否定式可在不定式前直接加not或借助do的相应否定形式来表达(放在seem前)。
She doesn't seem to like the idea. 她似乎不太喜欢这个想法。
They seemed not to know each other. 他们看起来好像互不认识。
4. seem + 分词
He seemed pleased at what I said. 听了我的话，他似乎很高兴。
The news seems exciting. 消息似乎很激动人心。
3)seem的否定式可在不定式前直接加not或借助do的相应否定形式来表达(放在seem前)。
She doesn't seem to like the idea. 她似乎不太喜欢这个想法。
They seemed not to know each other. 他们看起来好像互不认识。
4. seem + 分词
He seemed pleased at what I said. 听了我的话，他似乎很高兴。
The news seems exciting. 消息似乎很激动人心。
5. seem + 介词短语
It seems like years since I last saw you. 自从上次我见到你似乎过去好多年了。
They seemed in high spirits. 他们似乎情绪高涨。
二、 seem常用于it作形式主语的结构，即It seems / seemed&, seem表示“看来……，似乎……”。
It seems that nobody knew what had happened. 似乎没人知道发生了什么事。
It seems that he was late for the train. 看来他没赶上火车。
注意：1)在这一句式中，常可省去that。
2)在seem后间或可跟形容词。
It seems impossible that he will be here tomorrow. 明天他来这儿似乎是不可能的。
三、 seem常用于由as if / though引导的从句中。
It seems as if somebody is calling you. 好像有人在叫你。
It seems as though he were very stupid. 看来他似乎很笨。
注意：在as if / though引起的从句中，如果说的是非真实的情况，从句谓语用虚拟语气，如上句he were very stupid。如果所述的情况实现的可能性较大，则从句的谓语常用陈述语气。
四、 seem常用在“It seems / seemed to sb. (that)...”结构中，这种结构常用来表示“行为”的主体。
It seems to me that we have been neglecting our duty. 我感觉我们对职责有所疏忽。
It seems to me that they are right. 我感觉他们是对的。
五、用于There seems / seemed + to be + n. (主语)中。
There seemed to be no work for you to do now. 看来现在没有什么工作需要你做了。
注意：1)在这一结构中，seem表示“似乎有；看来有”。如：
There seems to be a lot of things to do. (=It seems as if there were a lot of things to do.) 似
It seems to me that we have been neglecting our duty. 我感觉我们对职责有所疏忽。
It seems to me that they are right. 我感觉他们是对的。
五、用于There seems / seemed + to be + n. (主语)中。
There seemed to be no work for you to do now. 看来现在没有什么工作需要你做了。
注意：1)在这一结构中，seem表示“似乎有；看来有”。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)这一结构的否定形式为“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. 在这个问题上似乎没出现什么困难。
小试牛刀：句型转换：根据第一句，完成第二句或第三句，每空一词，使句子意思保持不变。
1. She seems very sad.
She seems ________ ________ very sad.
2)这一结构的否定形式为“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. 在这个问题上似乎没出现什么困难。
小试牛刀：句型转换：根据第一句，完成第二句或第三句，每空一词，使句子意思保持不变。
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.
Key:
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.
Key:
1. to be; she is 2. he was waiting 3. nobody had lost 4. seems to be
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