八年级英语教学方法和措施 人教八年级英语教学方法( 六 )


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)
6、短语动词的四种类型
动词与介词、副词等构成的固定短语,叫短语动词 。主要有四类:
一、动词+副词
有的一般不跟宾语,如go ahead, fall behind, get up, lie down, go up, run out, give in, stay up等;有的可以跟宾语,如put out, carry out, give up, wake up, check in, eat up, fill in, find out, fix up, hand in, mix up, look up, make out, turn down, work out等 。
注意:宾语是名词时,放在副词前面或后面都可以,但若作宾语的是人称代词时,就只能放在动词和副词之间了 。如:
We’ve decided to put the meeting off (=put off the meeting) . 我们决定把会议推迟 。
We’ve decided to put it off. 我们决定将它推迟 。(不说put off it)
二、动词+介词
如ask for, care for, call for, break into, deal with, call on, look for等 。后面必须接宾语 。如:
I don’t care for tea. 我不喜欢喝茶 。
三、动词+副词+介词
如look forward to, put up with, looked up to, go in for, go along with, date back to, look down on, keep up with, add up to, run out of等 。如:
She soon caught up with us. 她很快赶上了我们 。
四、动词+名词+介词
如take care of, pay attention to, make use of, make contribution to做出贡献等 。如:
Take care of your brother while I am away. 我不在的时候,你要照顾好你弟弟 。
7、及物动词与不及物动词
根据其后是否带宾语,动词可分为及物动词(带宾语)和不及物动词(不带宾语) 。如:
When will he arrive? 他什么时候到?(arrive 不带宾语,为不及物动词)
He reached Beijing yesterday. 他昨天到达北京 。(reach 带了宾语,为及物动词)
有的动词既可用作及物动词也可用作不及物动词:
The child is playing. 这小孩在玩 。(不及物用法)
The child is playing the piano. 这小孩在弹钢琴 。(及物用法)
He is writing. 他在写字 。(不及物用法)
He is writing a letter. 他在写信 。(及物用法)
The boy is reading. 这男孩在阅读 。(不及物用法)
The boy is reading a magazine. 这男孩在看杂志 。(及物用法)
8、实义动词与非实义动词
根据其含义和句子功用,动词可分为实义动词和非实义动词(包括时态助动词和情态助动词等) 。如:
He bought a story book. 他买了一本故事书 。(buy 为实义动词)
He has read the story book. 他已读过这本故事书 。(has 为时态助动词,read为实意动词)
He should read the story book. 他应该读读这本故事书 。(should 为情态助动词,red为实义动词)


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