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类别
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用法及意户
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例词
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例句与说明
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实
义
动
词
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及物动词(vt.)
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表动作或状态,有完整词义,后接宾语,能单独作谓语
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like, enjoy,
watch, want
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She likes watching TV.
Do you enjoy listening to music?
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不及物动词(vi.)
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表动作或状态,有完整词义,后接宾语,能单独作谓语
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rise1, come, arrive, happen
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That story happened last year.
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连系动词
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本身有词义,但须与表语一起构成谓语
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表示“是”,“仍是”
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表“变得”
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become, get, grow, fall, go,turn
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It’s getting warm.
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表“听/看/闻/摸/尝 起来”
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sound / look / smell / feel / taste
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That sounds a good idea.
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表“似乎”,“好象”
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seem,appear
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助动词
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本身无意义不单独作谓语
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谓语动词是单独的行为动词,在一般现在时/过去时的句中帮助构成否定或疑问
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Do, Does, Did(位于句首构成一般问句)
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Does he speak English?
Yes, he does.
No, he doesn’t.
Hedoesn’t speak English.
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don’t / doesn’t / didn’t(位于谓语动词前来表否定)
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Jane didn’t go to school yesterday.
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与doing连用构成进行时
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be (not) doing
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She is doing her homework now.
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与done连用构成被动语态
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be done
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The tree was7 planed last year.
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与done连用构成完成时
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She has gone back.
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后接动词原形构成将来时
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I shall do it.
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情态动词
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本身有意义,但不能单独作谓语,与主要动词原形一起表示说话人的语气,情态,没有人称、数的变化。
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表“能够”
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Jane could swim when she was six.
I’ll be able to speak French12 next year.
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表“许可”
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may(较正式)
can(口语)
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You may smoke here.
“can’t”不可以;“may not”不可以
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表“请求许可”
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can/could(用于一、二人称)
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Can you help me?
May I help you?=Can I help you?
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表“可能”
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can/could
may/might(不用于问句)
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“can’t”只用于否定
“may not / might not”不可能
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表“必须”
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must
have to(可有各种时态)
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“mustn’t”意为“不可以”,表禁止
“don’t/doesn’t have to”意为“不必”
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表“应该”
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should,ought to有义务
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shouldn’t/oughtn’t to不应该
are not supposed to不应该
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表“一定”
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must
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Tom must be late.
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表“需要”
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need
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作情态动词时常用于否定句,疑问句或条件从句
作行为动词时,常用于肯定句
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表“敢”
表“请求指示”
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shall I / we / he…?
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—“Shall I open the door”?
—“Sure,please.”
Where shall we meet?
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表“向对方提出请求”
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—“Will you please open the door?”
—“Sure.”
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询问对方的意思
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Would you like to…?
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—“Would you like to try one more.”
—“No,thank you.”
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表说话人的意愿
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shall
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You shall be back at ten。
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“命令、允诺、强制”等,用于二、三人称
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表“意愿”,用于各人称
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will/would
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I will answer the phone.
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表“过去常常习惯于”
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过去曾有的动作/状态;过去的习惯,此时相当于would;表次数时不用。
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would
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表过去动作的重复,有明确的时间状语;表过去的次数时不用。
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表“祝愿”
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may
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