句型转换。1. He likes playing football very much. (改同义句)He ______ ______ _______ playing football. 2. It's necessary that we study English well. (改同义-七年级英语
have (has)—had, keep—kept, know—knew, leave—left,
make—made, read—read, run—ran, say—said,
see—saw, sit—sat
几个特殊实意动词过去式用法:
a.beat的过去式与原形同形:
beat(打击)
beat(过去式)
beaten(过去分词)
b.lie有规则变化和不规则变化两种,含义不同
lie,lied, lied(说谎)
lay, lain(躺,位于)
c.hang有规则变化和不规则变化两种,含义不同
hang,hanged, hanged(处绞刑)
hung, hung(挂,吊)
d. welcome(欢迎)一词是规则动词,不可误用为不规则动词
welcome welcomed, welcomed(正)
welcome, welcome(误)
e.不要将不规则动词误用为规则动词
hit(打)
hit, hit(正)
hitted, hitted(误)
1.主+V-ed+宾+其它。。。(肯定句)
2.主+didn't+V原+宾+其它。。。
3.Did+主+V原+宾+其它。。。+?
4.回答:Yes,主语代词+did\No,主语代词+didin't.
5.特殊疑问句:特殊疑问词+一般疑问句。
肯定句要使用动词的过去式,否定句和疑问句要使用助动词do和 does 的过去式 did.
肯定句为:
主语+动词过去式+宾语 如:
I went home at nine o'clock yesterday.
否定句:
主语+didn't +动词原形+宾语 如:
I didn't go home yesterday. He didn't tell me about you.
疑问句:
一般疑问句:
Did +主语+动词原形+宾语
如:Did you go home yesterday?
Did you study in the school?
肯定回答: Yes, I did.
否定回答:No, I didn't.
特殊疑问句:特殊疑问词+did +主语+动词原型+宾语
When did you finish your homework last night?
What did you do the day before yesterday?
考点名称:不定式
- 动词不定式:
指由to加上动词原形(而且只能是动词原形)所构成的一种非限定性动词,但在有些情况下to可以省略。
动词不定式在语法功能上可作主语、宾语、宾语补足语、表语、定语和状语。 - 动词不定式可以作以上各种成分,但它毕竟是动词,所以有动词的属性。
动词不定式及其短语还可以有自己的宾语、状语,虽然动词不定式在语法上没有表面上的直接主语,但它表达的意义是动作,这一动作一定由使动者发出。
这一使动者我们称之为逻辑主语,其形式如下:
时态 主动形式 被动形式 一般式 (not) to do (not) to be done 完成式 (not) to have done (not) to have been done 进行式 (not) to be doing 完成进行式 (not) to have been doing - 不定式的用法:
1、不定式作主语
例如:To remember this is very important.
注意:为了避免头重脚轻,在许多情况下,通常都将作主语的不定式置于句子后部,而在句首主语位置使用形式主语it。
例如:It is very important to remember this.
2、不定式作表语
例如:He seems to be ill.
注意:不定式作表语主要有三种情况,一是用于seem, appear, prove等系动词之后的不 定式(尤其是to be),
二是像My job is to sweep the floor. 这样的主语与表语“等价”的情形,
三是表示想法、约定、义务、命令、可能性、命运等,如:
You are to come when I call.
3、不定式作宾语
例如:I can not afford to buy a car.
注意:
①不定式不仅用作动词的宾语,还可用作个别介词(but, except)的宾语。
例如:I had no choice but to wait.
②当作宾语的不定式后跟有宾语补足语时,通常要用形式宾语it代替不定式,并将真正的宾语不定式置于宾语补足语之后
例如:I find it difficult to learn Japanese well.
4、不定式作宾语补足语
例如:Who taught you to drive?
5、不定式作定语
例如:I have a question to ask you.
注意:有的名词(如way, chance, right等)后用作不定式可换成of doing sth.
如:It is the best way to do (of doing) it.
但是以下名词后接不定式作定语时通常不能换成of doing sth.
attempt courage decision effort fortune failure invitation wish
6、不定式作状语
例如:I went to France to learn French.
考点名称:一般过去时
- 一般过去时:
表示过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为;过去主语所具备的能力和性格。
基本结构:
主语+动词过去式+其他;
否定形式①was/were+not;②在行为动词前加didn't,同时还原行为动词;
一般疑问句Did+主语+do+其他。 - 一般过去时句法结构:
肯定形式
主语+动词过去式+其他
例句:She often came to help us in those days.
否定形式
①was/were+not;②在行为动词前加didn't,同时还原行为动词
例句:I didn't know you like coffee
一般疑问句
①Did+主语+do+其他? ②Was\Were+主语+表语?
例句:Did I do that?
用表格整理如下:肯定式 疑问式 否定式 疑问否定式 Iworked Did I work? I did not work Did I not work? He(She,It) worked Did he(she,it) work? He(she,it) did not work Did he(she,it) notwork? We worked Did we work? We did not work Did we not work? You worked Did you work? You did not work Did you not work? They worked Did they work? They did not work Did they not work?
一般过去时并不难,过去动作、状态记心间。
动词要用过去式,时间状语句末站。
否定句很简单,didn't 站在动原前,其它部分不要变。
一般疑问句也好变,did放在句子前,主语、动原、其它部分依次站。
特殊疑问句也简单,疑问词加一般疑问句记心间。
最后一条请注意,动词过去式要牢记!
一般过去时中动词过去式变化规则: