Rewrite the following sentences as required. (根据所给要求,改写下列句子。每空格限填一词。)1. Jack has to look after her little brother at weekends. (改为一般-九年级英语

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一般过去时三变技巧:
一变:肯定句变为否定句
技巧1.当句中含有情态动词或助动词could,would,should等时,可直接在其后面加not构成否定句。例如:
I could get you a concert ticket. → I could not / couldn't get you a concert ticket.
技巧2.当句中含有系动词was,were 时,可直接在其后加not构成否定句。例如:
I was on the Internet when you called me. → I was not / wasn't on the Internet when you called me.
技巧3.当句中谓语是除情态动词、助动词、系动词was, were以外的动词时,在该动词之前加did not / didn't,动词还原,构成否定句。例如:
The famous singer sang some Chinese songs. → The famous singer did not / didn't sing any Chinese songs.

二变:陈述句变为一般疑问句
技巧1.移动词语的位置。将was,were, could,would,should等移到句首。例如:
He could pack his things himself. → Could he pack his things himself?
技巧2.添加助动词did。谓语是除情态动词、助动词、系动词was, were以外的动词时,在主语之前加did,动词还原。例如:
Mr Li looked very old. → Did Mr Li look very old?

三变:陈述句变为特殊疑问句
技巧1.确定疑问词:人who / whom,物what,地点where,时间when / what time,原因why,频率how often,长度how long,距离how far等等。例如:
They gave the concert last night. → When did they give the concert?
技巧2.辨认结构形式:疑问词+情态动词/助动词/ was / were / did +主语+...? 例如:
The accident happened near the station. → Where did the accident happen?

考点名称:感叹句

  • 感叹句:
    是表示喜怒哀乐等情感的句子。感叹句一般用how或what开头。感叹句要用降调,句末用感叹号
    How作状语,修饰修饰形容词、副词、或句子;
    what作定语,修饰名词(名词前可有形容词或冠词)。

  • 感叹句结构:
    一、由感叹词what引导的感叹句。
    1.① What+a/an+(形容词)+单数可数名词+主语+谓语!
    ② What+名词词组+主语+谓语!
    如: What a fine day it is!
    2. What+(形容词)+可数名词复数或不可数名词+主语+谓语!
    如: What kind women they are!
    What nice music it is!

    二、由How引导的感叹句。(how用来修饰形容词、副词或动词。)
    1.How+形容词(副词)+主语+谓语!
    如: How hard the workers are working!
    How clever the girl is!
    How quickly the boy is writing!
    2. How+主语+谓语!
    如:How time flies! 时光飞逝!

    三、注意:
    1. 当how修饰动词时,动词不跟着感叹词提到主语之前。
    如: How fast the runner runs!
    2. how与what引导的感叹句中的第一种格式(单数名词)一般情况下可以相互转换,转换后意义不变。
    如: What an interesting story it is! = How interesting the story is!
    What a beautiful building it is! = How beautiful the building is!
    3. 在口语中,感叹句的主语和谓语常常省略。
    如: What a nice present!(省略it is)
    How disappointed!(省略she is或其它可作本句主、谓的词语)

  • 感叹句 what 和 how 的区别:
    1.由"what"引导的感叹句:"what"意为"多么"用作定语,修饰名词(被强调部分),单数可数名词前要加不定冠词a/an,复数可数名词或不可数名词前不用冠词。
    这类句子的结构形式是:
    what+(a/an)+adj.+n.+主语+谓语+(it is).
    如: What a clever girl she is!   多么聪明的姑娘呀!
     
    2.由"how"引导的感叹句:"how"意为"多么",用作状语,修饰形容词或副词(被强调部分)。
    如果修饰形容词,则句中的谓语动词用系动词;
    如果how修饰副词,则句中的谓语动词用行为动词,这类句子的结构形式是:
    How+adj.(adv.)+主语+谓语+(it is).
    如: How cold it is today!今天多么冷呀!
      
    3.在表示同一意义时,英语感叹既可用"what"引导,也可用"how"引导。如:
    What a hot day it is!
    How hot the day is !

    4.感叹句在表示激动强烈的感情时,口语中常常采用省略句,其后面的主语和谓语往往略去不讲。
    如:What a fine day! 多么晴朗的天呀!

  • 一般陈述句转换成How或者What引导的感叹句的方法:
    方法:
    找出陈述句中的主语和谓语部分,再找出形容词,最后找陈述句中是否包含该形容词修饰的名词部分。
    例如:My classmates are very kind and helpful.
    分析:
    句子的主语是my classmates,谓语(即动词)是are,形容词有kind和helpful,但没有该形容词要修饰的名词。
    因此可以转换成How引导的感叹句,根据“How + adj. + 主语 + 谓语!”,
    该陈述句可以改成:
    How kind and helpful my classmates are!

    例如:China is a peaceful country.
    分析:
    句子中的主语是China,谓语是is,形容词是peaceful,而且有该形容词修饰的名词country,并且,country是可数名词,需要用冠词,原句有冠词a,
    因此可以转换成What引导的感叹句,根据“What + n. + 主语 + 谓语!”,
    该句子可以改成:
    What a peaceful country China is!

    感叹句用法:
    感叹句多以how或what引导,但在口语中,还有一些特殊的感叹句表达形式。
    1.以副词here, there, in开头的感叹句。
    Here comes the bus! 公共汽车来了!
    There they are! 他们在那儿呢!
    2.以疑问词who开头,表示惊奇。
    Who else will read such a book! 谁还会读这样的书!
    3.以情态动词may开头,表示愿望。
    May you both be happy! 祝二位幸福。
    May you succeed! 祝你成功!
    4.否定疑问句用作感叹句时,它的意义是肯定的;但肯定疑问句用作感叹句在美国英语中比较常见。
    Aren’t they sweet! 他们多可爱啊!
    I am hungry! 我饿极了!
    5.一些短语用作感叹句。
    Dear me! 哎呀! My goodness! 嗳呀!
    None of your nonsense! 不要胡说了!
    6.一些作表语的成分用作感叹句。
    Just my luck! 又倒霉了!
    Sorry, my mistake! 对不起,是我的错!
    7.以从句表示的感叹句。例如:
    As if were my fault!好像是我的错似的!
    To think a scandal of this sort should be going on under my roof!真想不到这种丑事竟然出在我们家里!

  • 感叹句大全:
    一、由 what 引导的感叹句,其句子结构可分为以下三种:
    “ What + a/an +形容词+可数名词单数+主语+谓语!”。如:
    What a nice present it is! 它是一件多么好的礼物啊!
    What an interesting book it is! 它是一本多么有趣的书啊!
    “ What +形容词+可数名词复数+主语+谓语!”。如:
    What beautiful flowers they are! 多么漂亮的花啊!
    What good children they are! 他们是多么好的孩子啊!
    “ What +形容词+不可数名词+主语+谓语!”。如:
    What fine weather it is today! 今天天气多好啊!
    What important news it is! 多重要的新闻啊!

    二、由 how 引导的感叹句,其句子结构也分为三种:
    “ How +形容词 / 副词+主语+谓语!”。如:
    How careful she is! 她多么细心啊!
    How fast he runs! 他跑得多快啊!
    “ How +形容词+ a/an +可数名词单数+主语+谓语!”。如:
    How beautiful a girl she is! 她是个多么漂亮的姑娘啊!
    “ How +主语+谓语!”。如:
    How time flies! 光阴似箭!
    由 what 引导的感叹句与由 how 引导的感叹句有时可以转换,但句中部分单词的顺序要有所变化。如:
    How beautiful a girl she is! = What a beautiful girl she is!
    What delicious cakes these are! = How delicious these cakes are!

    三、有时感叹句也可以由一个单词、词组、祈使句、陈述句等构成。
    如: Good idea! (好主意!)
    wonderful! (太精彩了!)
    Thank goodness! (谢天谢地!)

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