英语在什么情况下用副词呢?

1.一般副词主要分为以下几种:①.时间副词, 如: often, always, early, now②.地点副词, 如: here, there, above, outside③.方式副词, 如: hard, well, badly, fast, slowly④.程度副词, 如: very, quite, much, still, almost2.疑问副词(放在特殊疑问句的句首), 如: how, when, where, why3.关系副词(放在定语从句句首), 如: when, where, why4.连接副词(放在名词从句句首), 如: how, when, where, why, whether二.副词在句中的作用: 副词修饰动词, 形容词, 名词, 副词或全句, 在句中的作用如下1.作状语:a. You should always review your lessons.b. The visitors are warmly welcomed by the students.c. Certainly we should try out best to improve our work.2.作表语:a. He is abroad.b. The class is over.c. The football match is on.3.作定语: 副词作定语时置于被修饰词之后a. This is her first day up.b. The comrades here give us a lot of help.4.作补语(包括宾语补足语和主语补足语):a. I found all the lights on when I got home last night.三.副词在句中的位置:1.时间副词和地点副词的位置:①.表示确定时间的副词和表示地点的副词一般放在句尾. 若句中同时有地点副词和时间副词, 地点副词通常在前, 时间副词在后a. They went to the Summer Palace yesterday.b. We often goes there.c. I will go there tomorrow.②.表示不确定时间的副词(如: always, usually, often, never, ever, seldom, sometimes, rarely, generally, frequently)的位置: 句子谓语是be时, 位于其后; 句子谓语是单个完全动词时, 位于其前; 句子谓语由不完全动词与完全动词一起组成时, 位于第一个不完全动词之后.a. She always helps her mother with the housework.b. The old man seldom goes out.c. He is always the first to come to class.d. They have already done their homework.2.程度副词除enough之外, 一般放在被修饰词之前a. The student is very careful with his work.b. He swims quite well.c. The boy is old enough to go to school.3.方式副词的位置:①.修饰不及物动词的方式副词要放在被修饰词之后a. His sister sings well.b. The baby is sleeping soundly.②.修饰及物动词的方式副词可放在被修饰词之前或宾语之后; 如果宾语较长, 也可放在动词和宾语之间a. He speaks French fluently.b. All this morning Liu Ying has been writing carefully some English letters to her teachers.4.及物动词和副词小品词(down, on, off, in, out, up)组成的动词词组有名词作宾语时, 该名词可放在副词之后或副词之前; 若有代词作宾语时, 则代词一定放在副词之前a. He cut down the tree. =He cut the tree down.b. He cut it down.5.修饰名词的副词放在被修饰词之后a. The villagers there are busy getting in wheat.6.修饰全句的副词通常放在句首a. Truly he is an honest man.b. Still, in spite of what you say, I don’t think it is true.7.作状语时,各类副词的排列顺序一般为: 方式副词, 地点副词, 时间副词a. He behaved well here yesterday.