句型转换1. I suppose they will have a picnic.(改为否定句)I _________ suppose they _______ have a picnic.2. When you are invited for 8 :00 ,you should come la-九年级英语

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题文

句型转换
1. I suppose they will have a picnic.(改为否定句)
I _________ suppose they _______ have a picnic.
2. When you are invited for 8 :00 ,you should come later.   (同义句)    
When you are invited for 8 :00, you ______ _______ ______come later.
3. Miss Gao asked us to clean the classroom. (改为被动语态)
We_______ _______ to clean the classroom by Miss Gao.
4. Students can't take magazines out of the reading room.(改为被动语态)
Magazines_______ _______ _______ _______of the reading room.
5. Jim was made to clean his room by his mother justnow.(改为主动语态)
Jim's mother________ Jim_______ his room just now.  
题型:句型转换  难度:中档

答案

l. don't; will   2. are supposed to   3. are asked   4. can't be taken out   5. made; clean

据专家权威分析,试题“句型转换1. I suppose they will have a picnic.(改为否定句)I..”主要考查你对  情态动词,实义动词,助动词,被动语态,动词短语  等考点的理解。关于这些考点的“档案”如下:

情态动词实义动词助动词被动语态动词短语

考点名称:情态动词

  • 情态动词:
    是一种本身有一定的词义,表示说话人的情绪、态度或与语气的动词,但不能单独作谓语,只能和其他动词原形构成谓语。
    无人称和数的变化,情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 “not”。
    个别情态动词有现在式和过去式两种形式,过去式用来表达更加客气,委婉的语气, 时态性不强,可用于过去,现在或将来。情态动词属非及物动词,故没有被动语态。
    情态动词有四类:    
    ①只做情态动词:must, can(could),may(might)……    
    ②可做情态动词又可做实义动词:need, dare   
    ③具有情态动词特征:have(had, has) to, used to    
    ④情态动词表猜测
    注:mustn't代表强烈禁止 must表示主观,have to表示客观。
    常用的有:can  may  could  must   have  use  .

  • 情态动词特点:
    情态动词无人称和数的变化,情态动词后面跟的动词须用原形,否定式构成是在情态动词后面加 "not"。
    个别情态动词有现在式和过去式两种形式,过去式用来表达更加客气,委婉的语气,时态性不强,可用于过去,现在或将来。情态动词属非及物动词,故没有被动语态。
    He could be here soon.他很快就来。
    We can't carry the heavy box.我们搬不动那箱子。
    I'm sorry I can't help you.对不起,我帮不上你。

    基本助动词与情态助动词最主要的区别之一是:
    基本助动词本身没有词义,而情态助动词则有自己的词义,能表示说话人对有关动作或状态的看法,或表示主观设想:
    What have you been doing since? (构成完成进行体,本身无词义)
    I am afraid I must be going. (一定要)
    You may have read some account of the matter. (或许已经)

    除此之外,情态助动词还有如下词法和句法特征:
    1) 除ought和used以外,其他情态动词后面只能接不带to的不定式。如果我们把ought to和used to看做是固定词组的话,那么,所有情态动词无一例外地只能接不带to的不定式:
    We used to grow beautiful roses.我们过去常常种这种漂亮的玫瑰花
    I asked if he would come and repair my television set.我问他是否来修我的电视机
    2) 情态助动词在限定动词词组总是位居第一:
    They need not have been punished so severely.
    3) 情态助动词用于第三人称单数现在时的时候,没有词形变化,即其词尾无-s形式:
    She dare not say what she thinks.
    4) 情态动词没有非限定形式,即没有不定式和分词形式,也没有相应的动名词:
    Still,she needn't have run away.
    5)情态助动词的“时”的形式并不是时间区别的主要标志。在不少场合,情态助动词的现在时和过去时形式都可以表示现在、过去或将来时间:
    Would you mind very much if I ask you to do something?
    She told him he ought not to have done it.
    6) 情态助动词之间是相互排斥的,即在一个限定动词词组中只能出现一个情态助动词,但有时却可以与have和be基本助动词连用:
    You should have washed the wound.
    Well,you shouldn't be reading a novel.
    7)情态动词must一般疑问句否定回答用needn't
    Must I read books every day、
    No,you needn't

  • 常见情态动词用法:
    1.can (could) 表示说话人能,可以,同意,准许,以及客观条件许可,could 为 can 的过去式。
    2.Must 必须,应该,一定,准是,表示说话人认为有必要做某事,命令,要求别人做某事以及对事物的推测。
    must 用来指一般现在时和一般将来时, 过去式可用 have to 的过去式代替。
    must + have + 过去分词,表示现在对过去事物的推测。
    must 和 have to 的区别:must 表示说话人的主观思想,have to 表示客观需要。
    3.need 是一个情态动词,他的用法完全和其他情态动词一样,但 need 还可当作实义动词使用,这时 need 就象其他动词一样,有第三人称,单复数, 后面加带 to 的动词等特性。
    needn't + have + 过去分词 表示过去做了没必要做的事情。
    4.dare 除用作情态动词外,更多的是当实义动词使用, 用法同实义动词一样,要考虑人称,单复数,时态等。
    5.ought 应当,应该。后面跟带有 to 的动词不定式。
    ought + to have done 句型。指过去动作,表示一件事情该做而未做。
    ought not to have done 句型。表示一件不该做的事情却做了。
    6.will (would)决心,愿望。 would 为 will 的过去式,
    will, would用于疑问句表示说话人向对方提出请求或询问,用 would 比 will 更婉转,客气。
    7.Shall、should 表示命令,警告,允诺,征求,劝告,建议,惊奇。
    8.have to,不得不,必须,表示客观条件只能如此,而must 则表示主观思想。

  • 情态动词功能:
    助动词主要有两类:基本助动词和情态助动词。
    基本助动词有三个:do,have和be;
    情态助动词基本的有十四个:may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to.had better 上述两类助动词的共同特征是,在协助主动词构成限定动词词组时,具有作用词的功能:
    1) 构成否定式:
    He didn't go and neither did she.
    The meeting might not start until 5 o'clock.
    2) 构成疑问式或附加疑问式:
    Must you leave right now?
    You have been learning French for 5 years, haven't you?
    3) 构成修辞倒装:
    Nowhere can he obtain any information about his sister.
    Hardly had he arrived when she started complaining.
    4) 代替限定动词词组:
    A: Who can solve this crossword puzzle?
    B: Tom can.
    A: Shall I write to him?
    B: Yes, do.

    情态动词表推测的用法小结   
    (一)情态动词表推测的三种句式    
    1.在肯定句中一般用must (一定),may(可能),might /can, could(也许,或许)。   
    (1)He must/may/might know the answer to this question?    
              他一定/可能/也许知道这个问题的答案。   
    (2)It is cold in the room. They must have turned off the heating.   
              屋里很冷,他们肯定把暖气关了。    
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