该如何区分主系表和主谓结构中出现be的情况His job is taking care of the patient.The weather is getting colder and colder.The weather is going to stay fine.The boy is crying loudly..It is snowing hard.He is beginning a new life是不

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该如何区分主系表和主谓结构中出现be的情况His job is taking care of the patient.The weather is getting colder and colder.The weather is going to stay fine.The boy is crying loudly..It is snowing hard.He is beginning a new life是不
该如何区分主系表和主谓结构中出现be的情况
His job is taking care of the patient.
The weather is getting colder and colder.
The weather is going to stay fine.
The boy is crying loudly.
.It is snowing hard
.He is beginning a new life是不是只要是be出现在句子中就可以判断为系动词如果不是那该如何区分二者的区别

该如何区分主系表和主谓结构中出现be的情况His job is taking care of the patient.The weather is getting colder and colder.The weather is going to stay fine.The boy is crying loudly..It is snowing hard.He is beginning a new life是不
不是,be动词主要用作连系动词,但也有用作助动词的时候,就是帮助构成“现在时”的时态
be doing（现在分词）中 be是没有意思的,也不是系动词,而是助动词
以上例句除第1句外都是be动词用作助动词
因为第1句中的doing是动名词,不是现在分词的doing,因此是系动词,后面的动名词是表语

如何区分主谓宾和主系表结构的疑问句该如何区分主系表和主谓结构中出现be的情况His job is taking care of the patient.The weather is getting colder and colder.The weather is going to stay fine.The boy is crying loudly..It is snowing hard.He is beginning a new life是不语文的主谓宾结构如何区分? 主谓宾和主系表如何具体区分? 英语中的主系表和主谓宾结构如何区分?再者,如何准确的区分宾语和表语?主谓宾形式能不能举个不定式和动名词的例子呢？英语主谓结构和主谓宾结构怎么区分? 小学英语主系表和主谓宾句子结构怎样区分咋样分辨英语中主系表结构和主谓宾结构（be动词除外）如何判断英语句子中主谓宾结构和主系表结构主谓宾和主系表的结构英语中的动宾和主谓的区别如何区分英语中的主谓与动宾? 如何区分主系表与主谓宾! 怎样区分句子属于主谓,主谓宾,主谓宾宾,主谓宾宾补和主系表? 英语:主谓结构和主系表结构的区别?主系表结构是不是被包含在主谓结构中?如:you are gone是哪个结构?被动语态属于什么结构? 主谓宾和主系表结构的区别This is a cat.是主系表还是主谓宾？是不是可以理解为be东西后面的绝大多数都是表语？如何区分左右结构和左中右结构的字 how long does that have to be?结构如何?这个句子的结构如何划分?主谓宾在哪里? There Be结构的句子怎么区分它的主语及谓语如There is going to be a storm,它的主谓宾在哪里?