他保持沉默英语

连系动词是一个表示不完全谓语关系的动词，它必须后接表语，表语通常是名词和形容词，它既没有被动语态，也没有进行时态。如：He was a painter, but a very bad one.I am very hungry and tired.最基本的连系动词是be，如：He is strong.He is a strong man.The man is here.Mary is in the house.We are of the same opinion.That is out of the questiion.That is why I like the movie "The Sound of Music" best.The problem is to find (finding) the right house.常见的连系动词还有appear、become、get、look、remain和seem。表示感觉和知觉的动词，也是连系动词，如：feel、taste、smell、sound等。The rose smells sweet.The milk tastes sour.有些和形容词连用的动词，也可以是连系动词，如：blow、break、blush、grow、fall、prove、stand、turn、wax等。be和及物动词的过去分词一起构成被动语态的时候，be作为助动词出现，而不是连系动词，没有实际意义。如：The thief was caught in the parking lot.The child is crying because he has been stung by a bee.希望我能帮助你解疑释惑。