本试题 “句型转换1. Maria asked me to go to her birthday party yesterday.（改为否定句）Maria me to go to her birthday party yesterday.2. She asked me," Will...” 主要考查您对助动词
一般过去时
宾语从句
等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
常见助动词用法：
have的用法：
have作助动词
形式：
主要变化形式：have，has，had
动名词/现在分词：having
1）have +过去分词，构成完成时态，例：
He has left for London. 他已去了伦敦。
By the end of last month, they had finished half of their work.
上月末为止，他们已经完成工作的一半。
2）have + been +现在分词，构成完成进行时（现在完成时），例：
I have been studying English for ten years.我一直在学英语，已达十年之久。
3）have+been +过去分词，构成完成时态的被动语态，例：
English has been taught in China for many years.中国教英语已经多年。
do的用法：
形式
主要变化形式：do,did，done
动名词/现在分词：doing
1） 构成一般疑问句，例如：
Do you want to pass the CET?你想通过大学英语测试吗？
Did you study German? 你们学过德语吗？
2）do + not 构成否定句，例如：
I do not want to be criticized.我不想挨批评。
He doesn't like to study.他不想学习。
In the past, many students did not know the importance of English.过去，好多学生不知道英语的重要性。
3) 构成否定祈使句，例如：
Don't go there. 不要去那里。
Don't be so absent-minded. 不要这么心不在焉。
说明： 构成否定祈使句只用do，。
4）放在动词原形前，加强该动词的语气，例如：
Do come to my birthday party please.请一定来参加我的生日宴会。
I did go there. 我确实去那儿了。
I do miss you. 我确实想你。我真想你了！
5）用于倒装句，例如：
Never did I hear of such a thing.
我从未听说过这样的事情。
Only when we begin our college life do we realize the importance of English.
只有在开始大学生活时我们才认识到英语的重要性。
说明： 引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。
6）用作代替动词，例如：
Do you like Beijing? 你喜欢北京吗？
Yes，I do.是的，喜欢。（do用作代动词，代替like Beijing.）
He knows how to drive a car， doesn't he?他知道如何开车，对吧？
may和can：
1) may用来表示许可
2）may用于所有人称的现在时及将来时句子中。
3）might用于所有人称的过去时及条件句中。
否定形式：may not/mayn't，might not/mightn't
疑问式：may I？might I？等
否定疑问式：may I not？/mayn't I?等
表示许可的may的其他形式可用allow，be allowed的相应形式代替。
4）may后面接不带to的不定式（即动词原形）。
5）can用来表示许可
6）can用于所有人称的现在时及将来时的句子中。
7）could用于所有人称的过去时及条件句中。
否定式：can not/can't,could not/could't
疑问式：can I？could I？等。
否定疑问式：can I not？/can't I？could I not？/couldn't I？等。
表示许可的can的其他形式可用于allow，be allowde的相应形式代替。
can与不带to的不定式连用。
shall和will的用法：
1）shall和will作为助动词可以与动词原形一起构成一般将来时，例如：
I shall study harder at English.我将更加努力地学习英语。
He will go to Shanghai. 他要去上海。
说明：
在过去的语法中，语法学家说shall用于第一人称，will 只用于第二、第三人称。
现在，尤其是在口语中，will常用于第一人称，但shall只用于第一人称，如用于第二、第三人称，就失去助动词的意义，已变为情态动词，试比较:
He shall come.他必须来。（shall有命令的意味。）
He will come.他要来。（will只与动词原形构成一般将来时。）
2）shall在疑问句中，用于第一，第三人称，征求对方意愿
shall I turn on the light?
要开灯吗?( 我把灯打开好吗?)
shall he come to see you?
他要不要来看你
(比较: will he come to see you? 他会不会来看你)
3）shall 用在陈述句，与第二第三人称连用，变为情态动词，表示允诺，命令，警告，和说话人的决心等。
should，would的用法：
1）should无词义，只是shall的过去形式，与动词原形构成过去将来时，只用于第一人称，例如：
I telephoned him yesterday to ask what I should do next week.
我昨天给他打电话，问他我下周干什么。
比较：
"What shall I do next week?" I asked.
"我下周干什么？"我问道。（可以说，shall变成直接引语时，变成了should。）
2）would也无词义，是will的过去形式，与动词原形构成过去将来时，用于第二、第三人称，例如：
He said he would come.他说他要来。
比较：
"I will go," he said. 他说："我要去那儿。"
变成间接引语，就成了：
He said he would come.
原来的will变成would，go变成了come.。过去式从原来的go变为came。
| 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? |
|
词 |
构成 |
举例 | |
|
一般情况 |
词尾+ed |
动词原形 |
过去式和过去分词 |
|
look |
looked | ||
|
以不发音字母e结尾 |
词尾+d |
like |
liked |
|
以“辅以字母+y”结尾 |
变y为i，再加ed |
fly |
flied |
|
以重读闭音节结尾，且末尾只有一个辅音字母 |
双写词尾+ed |
stop |
stopped |
宾语从句的特点:
1.宾语从句可以作及物动词、介词及形容词的宾语。
2.宾语从句的语序一律用陈述句语序。
3.连接词that引导宾语从句在句中无词义，不充当句子成份，多数情况下可以省略。
4.whether 和 if 都可引导宾语从句，但 whether后可紧跟or not；whether从句可作介词的宾语。
5.如果从句太长，可以用形式宾语it.
宾语从句的时态:
1.主句是一般现在时，从句根据实际情况使用任何时态。
例句：The headmaster hopes everything goes well.
2.主句是过去时态，从句须用过去时态的某种形式。
例句：She was sorry that she hadn’t finished her work on time.
3.当宾语从句表示的是一个客观真理或者事实时，即使主句是过去时，从句也用一般现在时态。
例句：The teacher told his class that light travels faster than sound.
4. 如果从句的动作发生在主句之前，则从句要用过去完成时态。
宾语从句的语序:
A. 宾语从句必须用陈述语序。
False: He is wondering when can he finish this difficult job.
Right: He is wondering when he can finish this difficult job.
B. 有时候可以用it 作形式宾语，而把真正的宾语从句放在后面。
Bad: I thought that he could finish this job in just two hours impossible.
Good: I thought it impossible that he could finish this job in just two hours.
C. 带有宾语从句的复合句的否定形式一般是否定主句。
Bad: I think he doesn’t like the English teacher.
Good: I don’t think he likes the English teacher.
D. 主句一般过去时态，从句也要用过去时态。
False: He wanted to know why he is crying in the corner.
Right: He wanted to know why he was crying in the corner
宾语从句的否定转移:
主句的谓语动词是think,believe,imagine,suppose,consider,espect,fancy,guess等。
并且主句的主语是第一人称而且为一般现在时，从句的否定词一般要转移到主句上来,其反义疑问句一般与宾语从句一致。
I don’t think he will come to my party.而不能说成I think he won’t come to my party.
我认为他不会来我的舞会.
I don’t believe that man is killed by Jim,is he?
我认为那个人不是Jim所杀的,是不是?
如果宾语从句中有某个含有否定意义的形容词或副词,其反义疑问句要用肯定形式。
We find that he never listens to the teacher carefully,does he?
我们发现他从来不仔细听老师讲课，是不是?
宾语从句中引导词的用法比较
在复合句中作主句的宾语，引导词有：
连词：that (that 常可省略),whether, if
代词：who, whose, what ,which
副词：when ,where, how, why 等。
（一）that引导的宾语从句（在非正式场合that可以省略）
1.可跟that从句做宾语的动词有：
say, think, insist, wish, hope, demand, imagine, wonder, know, suppose, see, believe, agree, admit, deny, expect, explain, order, command, feel, dream, suggest, hear, mean, notice, prefer, request, require, propose, declare, report等。
例句：The boy believes that he will travel through space to other planets.
注意事项：当主句谓语动词是 think, believe, suppose, expect 等词，而宾语从句的意思是否定时，常把否定转移至主句表示。
例句：I don’t think it is right for him to treat you like that.
2.在以下情况中that不能省略
a.当句中的动词后接多于两个由that引导的宾语从句时，第一个that可省，但后面的that不可省。
例句：He said (that) you were too young to understand the matter and that he was asked not to tell you.
b.当主句的谓语动词与that宾语从句之间有插入语时，that一般不可省。
例句：Just then I noticed, for the first time, that our master was wearing his fine green coat and his black silk cap.
c.当that从句是双宾语中的直接宾语时，that不可省。
例句：I can’t tell him that his mother died.
d.注:许多带复合宾语的句子，that引导的宾语从句经常移到句子后部，而用it作形式宾语。
例句：I find it necessary that we should do the homework on time.
（二）由whether,if 引导的宾语从句
1.由whether(if)引导的宾语从句，实际上是一般疑问句演变而来的。意思是“是否”。宾语从句要用陈述句语序。
一般说来，在宾语从句中whether与if可以互换使用，但在特殊情况下if与whether是不能互换的。
例句：I wonder whether(if) they will come to our party.
2.只能用whether，不能用if引导的宾语从句
a.在带to的不定式前
例句：We decided whether to walk there.
b.在介词的后面
例句：I’m thinking of whether we should go to see the film.
c.在动词后面的宾语从句时
例句：We discussed whether we had a sports meeting next week
d.直接与or not连用时
例句：I can’t say whether or not thet can come on time.
3.只能用if不能用whether引导的宾语从句
a.if引导条件状语从句，意为“如果”
例句：The students will go on a picnic if it is sunny.
b.if引导否定概念的宾语从句时
例句：He asked if I didn’t come to school yesterday.
c.引导状语从句even if（即使）和as if（好象）时
例句：He talks as if he has known all about it.
if,whether在宾语从句中的区别
a.if和whether在作“是否”解时,引导宾语从句常放在动词know,ask,care,wonder,find out等之后,介词后一般不用if
b.少数动词,如:leave,put,discuss,doubt后的宾语从句常用whether.
c. whether后可以加or not,但是if不可以.
d.在不定式前只能用whether.
（如：I can’t decide whether to stay. 我不能决定是否留下。）
e.避免歧异时,我们常用whether而不用if.
（三）连接代词和连接副词引导的宾语从句
这样的宾语从句实际上是由特殊疑问句变化而来的，宾语从句要用陈述句语序。
用于这种结构的动词常常是：see, say, tell, ask, answer, know, decide, show, find out, imagine, suggest, doubt, wonder, discover, understand, inform, advise等。
1.英语中的连接代词有：who,whom,whose,which,what,在句中担任主语、宾语、定语或者表语。
例句：Can you tell me whom you are waiting for?
2.英语中的连接副词有：when,where,why,how，在句中担任状语的成分。
例句：None of us knows where these new parts can be bought.
简化宾语从句常用六法：
方法一：
当主句谓语动词是hope， decide， wish， choose， agree， promise等，
且宾语从句的主语与主句主语一致时，宾语从句可简化为不定式结构。
例如：
Li Ming hopes he will be back very soon.
→Li Ming hopes to be back very soon.
We decided that we would help him.
→We decided to help him.
方法二：当主句谓语动词是know， learn， remember， forget， tell等动词，
且主句主语与从句主语一致时，宾语从句可简化为“疑问词+不定式”结构。例如：
She has forgotten how she can open the window.
→She has forgotten how to open the window.
注：当主句谓语动词是tell， ask， show， teach等动词，
且后带双宾语，从句主语和间接宾语一致时，宾语从句可简化为“疑问词+不定式”结构。例如：
Could you tell me how I can get to the station？
→Could you tell me how to get to the station？
方法三：当主句的谓语动词是order（命令），require（需要）等时，
如果主句和从句的主语不一致，宾语从句可简化为“名词（代词）+不定式”结构。例如：
The headmaster ordered that we should start at once.
→ The headmaster ordered us to start at once.
方法四：某些动词后的宾语从句，可以用介词加动名词（短语）等其他形式简化。例如：
He insisted that he should go with us.
→He insisted on going with us.
The poor boy doesn’t know when and where he was born.
→The poor boy doesn’t know the time and the place of his birth.
方法五：某些动词后面的宾语从句可转化为“宾语+V-ing形式（作宾语补足语）”结构。例如：
Liu Ping found that there was a wallet lying on the ground.
→ Liu Ping found a wallet lying on the ground.
方法六：动词seem后的宾语从句，也可以用不定式（短语）来简化，但句型需要进行适当的变化。例如：
It seemed that the boys were going to win.
→The boys seemed to win.
除上述方法外，还有一些特殊句式的转化。例如：
I found that it was difficult to learn English well.
→I found it difficult to learn English well.
Soon we found that the ground was covered with thick snow.
→Soon we found the ground covered with thick snow.
They found that the box was very heavy.
→They found the box very heavy
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