行为动词（即实义动词）的基本特点及用法
行为动词是表示行为、动作或状态的词。它的词义完整，可以单独作谓语。
I live in Beijing with my mother.（我和我妈妈住在北京。）live，住
It has a round face.（它有一张圆脸。）has，有
（1）行为动词按其是否需要宾语，可以分为及物动词和不及物动词。
① 及物动词
后面必须跟宾语，意思才完整.
Give me some ink, please.（请给我一些墨水。）
If you have any questions, you can raise your hands.（如果你们有问题，你们可以举手。）
② 不及物动词
后面不能跟宾语，意思已完整。不及物动词有时可以加上副词或介词，构成短语动词，相当于一个及物动词。
■Jack runs faster than Mike.（杰克跑步比迈克要快些。）
■He got “A” this time because he went over his lessons carefully.（这次他得了个“A”，因为他仔细地复习了功课。）
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（2）行为动词按其的状态又可分为持续性动词和瞬间性动词。① 持续性动词（延续性动词）表示一个动作可以持续一段时间或更长时间。常见的有study, play, do, read, learn, drive, write, clean, learn, sleep, speak, talk, wait, fly, stay, write, sit, stand, lie, keep等。② 瞬间性动词（短暂性动词）表示一个动作发生在一瞬间，非常短暂。亦称终止性动词。常见的有begin, start, finish, go, come, leave, find, get up, arrive, reach, get to, enter, hear, stop, open, close, become, buy, borrow, lend, happen, join, lose, renew, die, take away, put up, set out, put on, get on/off等。1. Being too anxious to help an event often______ (result) in the contrary to our destination.2. China ________ (be)famous for tea production since ancient times.3. __________(gather) around the fire, the tourists danced with the local people.4. Recently a survey ______________ (compare) prices of the same goods in two different supermarkets has caused heated debate among citizens.5. ________ (walk) is a good form of exercise for both young and old.1.results 【解析】句意：忧虑帮助一个重大事件常常会导致偏离我们的目的地。动名词做主语谓语动词用第三人称单数。2.has been 【解析】句意：这个自从古代就因茶而出名，since引导从句或短语，主句用现在完成时态。3.Gathering 【解析】句意：游客聚集在火旁，和当地人一起跳舞。分词作状语，前后逻辑主语一致。4.compared 【解析】句意：最近通过对两家超市不同商品价格的比较已经引起市民热烈的讨论。分词作定语。5.Walking 【解析】句意：对于年轻人和老年人来说，散步是一项和你好的运动。动名词做主语。
