酷兔英语

初中英语分类练习
——动词部分
【复习目标】
▲掌握动词的种类情况。
▲掌握动词不定式的用法。 
【课前准备】
●要求学生对所学动词进行归类记忆。 
【知识要点】
(一)动词的种类
动词是表示动作或状态的词,按其词义和在句子中的作用可分为行为动词,连系动词,助动词和情态动词。
1.行为动词
行为动词可分为及物动词 (vt)和不及物动词(vi),及物动词表示动作或状态,有完整的词义,能单独作谓语,后跟宾语;不及物动词表示动作或状态,有完整的词义,能单独作谓语,但后面不能直接跟宾语,如要带宾语则与介词或副词构成短语。
如:
More and more people study English.(vt)
The students are listening to the teacher carefully.(vi)
2.连系动词
连系动词本身有一定的词义,但不能独立作谓语,必须与表语一起构成谓语。常用的连系动词有 be, get, turn, become, look, feel, grow, seem, sound, taste, smell等。
如:
Our country is becoming stronger and stronger.
It feels damp. 
3.助动词
助动词本身无词义,不能单独作谓语,只能和主要动词一起构成谓语动词,表示否定,疑问及动词的时态、语态、人称和数等语法特征,助动词有 be,do,have,shall,will等。
如:
How do you usually come to school?
The children are playing yo-yo now. 
4.情态动词
情态动词本身有一定的意义,但不能独立作谓语,只能和主要动词原形一起构成谓语,表示说话人的语气和情态。情态动词没有人称和数的变化。情态动词有 can (could),may(might),must, need, ought to, dare等。
如:
Can I help you?
- Must we go now? –No, you needn't .
a. can与be able to的用法有所区别。can只用于一般现在时和过去时,指本身有能力的“能”;be able to用于各种时态均可,指须经过努力而“能”。
b. must与have/has to的用法。must表示说话人主观认为“必须”,只用于一般现在时和一般将来时;have/has to表示客观需要,意为“不得不”,它可用于各种时态。
c.need和dare既可作情态动词也可作行为动词。 
(二)动词不定式
动词不定式 to do没有人称和数的变化,在句中不能独立作谓语,但可以和助动词或情态动词构成谓语,又可以在句子中作宾语、宾语补足语、状语、定语、主语、表语等。但它毕竟是动词,因此,具有动词的许多特点,如它可以有自己的宾语或状语构成不定式短语。 1.作主语。 如:
To learn English is very important.
但实际上不定式作主语常用 it来作形式主语,而将不定式移至谓语动词后作真正的主语。
如上句可表达为:
It's very important to learn English. 
2.作表语。 如:
My idea is to ring him up at once. 
3.作宾语。 如:
I have decided to go to Binjiang Primary School. 
4.作宾语补足语。
a. ask, want, teach, tell, know, would like, allow等动词后面接动词不定式作宾语补足语。
如: The policemen asked him to get off the bus.
b. hear, see, look at, feel, watch, notice, listen to等动词后接不带to的动词不定式作宾语补足语。
如: We often see Miss Li clean the classroom.
c. let, make, have这些使役动词后接不带to的动词不定式作宾语补足语。但在被动语态中这些不带to的都须带上to。
如: In those days the bosses often made the workers work day and night.
d.动词help接动词不定式作宾语补足语,可带to也可不带to。
如: Can you help me (to) carry the heavy bag? 
5.作定语。
a.与被修饰词有动宾关系。如:I have something important to tell you.但如果不定式动词为不及物动词,后面的介词千万不要省略。
如: Maybe they have three rooms to live in.
b.与被修饰词有主谓关系。
如: Mr Liang is always the first to come and the last to leave.
c.与被修饰之间只有修饰关系。
如: I have no time to play cards. 
6.作状语,表示目的、原因、方法、方向、结果等。
如: I'll go to meet my friend at the railway station. 
7.不定式复合结构“for sb. to do sth” 作主语时,常用“It is +adj+ for
of sb. to do sth”的句式。形容词good, bad, polite, unkind, kind, ice, clever,
right, wrong, careful等用“It is +adj +of sb. to do sth.”
其他形容词用 for。
如:
It's dangerous for you to ride so fast.
It's very kind of you to help me. 
8.动词不定式与疑问句who, what, which, when, how, where, whether等连用。
如: I don't know when to start.
He didn't tell me where to go.
但上面结构相当于一个从句,故上述句子也可表达为:
I don't know when we'll start.
He didn't tell me where he would go. 
注意:
a.有些动词或动词短语不能带不定式,只能接动词的-ing形式。
如: enjoy, finish, keep, mind, miss(错过),be busy, go on, keep on, be worth, practise等。
如: The peasants are busy picking apples.
Would you mind my opening the door?
b.有些动词后可接不定式,也可接动词的-ing形式,但意思不同。
如: Lu Jian forgot to post the letter.(该寄但还没做)
Lu Jian forgot posting the letter.(已经寄过信了)
They stopped to sing a song.(停止在做的工作而去做另一件工作)
They stopped singing.(停止正在做的工作)

“主谓一致”解题指导
一、主谓一致
主谓一致有许多原则,概括起来不外乎三种一致原则,即语法形式一致,概念一致(语言内容上一致),毗邻一致(谓语动词的单复数形式和紧位于其前的主语一致)。
1. 语法形式一致
(1)单数主语、单个动词不定式、动名词短语以及句子作主语,谓语动词要用单数形式。复数主语,用and或both…and连接的动词不定式短语、动
生词表:
  • primary [´praiməri] 移动到这儿单词发声  a.主要的 n.居首位的   (初中英语单词)
  • polite [pə´lait] 移动到这儿单词发声  a.有礼貌的;温和的   (初中英语单词)
  • opening [´əupəniŋ] 移动到这儿单词发声  n.开放;开端 a.开始的   (初中英语单词)
  • decided [di´saidid] 移动到这儿单词发声  a.明显的;决定的   (高中英语单词)
  • unkind [,ʌn´kaind] 移动到这儿单词发声  a.不客气的;不和善的   (英语四级单词)