句型转换。1. He has enough time. (改为否定句) He _________ _________ enough time.2. What's wrong with you? (改为同义句) What's _________ _________ with yo-八年级英语

美国人

the Americans

 a American 

two Americans

考点名称:疑问代词

  • 疑问代词:
    疑问代词在句中起名词的作用,用来构成疑问句。常用的疑问代词有:   
    what, who, whose, whom, which, whatever, whichever, whoever, whomever   
    疑问代词在句中应位于谓语动词之前,没有词性和数的变化,除who之外也没有格的变化。 
    what, which, whose还可作限定词。
    Whose books are these on the desk?
    桌上的书是谁的?
    What was the directional flow of U. S. territorial expansion?
    美国的领土扩张是朝哪个方向的?
    What events led to most of the east of the Mississippi River becoming part of the United States?
    哪些事件使密西西比河以东的大部分土地归属于美国?
    疑问代词在句中起名词词组的作用,用来构成疑问句。疑问代词有下列几个:
    指 人: who, whom, whose
    指 物: what
    既可指人又可指物: which

  • 疑问代词说明:
    一、无论是做疑问代词还是限定词,which 和 what 所指的范围不同。what所指的范围是无限的,而which则指在一定的范围内,例如:
    Which girls do you like best?
    你喜欢哪几个姑娘?
    What girls do you like best?
    你喜欢什么样的姑娘?

    二、Whom是who的宾格,在书面语中,它作动词宾语或介词宾语,在口语中作宾语时,可用who代替,但在介词后只能用whom, 例如:
    Who(m) did you meet on the street?
    你在街上遇到了谁?(作动词宾语)
    Who(m) are you taking the book to?
    你要把这书带给谁?(作介词宾语,置句首)
    To whom did you speak on the campus?
    你在校园里和谁讲话了?(作介词宾语,置介词 后,不能用who取代。)

    三、疑问代词用于对介词宾语提问时,过去的文体中介词和疑问代词通常一起放在句首,现代英语中,疑问代词在句首,介词在句未,例如:
    For what do most people live and work?大部分人生活和工作的目的是什么?(旧文体)
    What are you looking for?你在找什么?(现代英语)

    四、疑问代词还可引导名词性从句,例如:
    I can't make out what he is driving at.
    我不知道他用意何在。
    Can you tell me whose is the blue shirt on the bed?
    你能告诉我床上的蓝衬衣是谁的吗?
    Much of what you say I agree with, but I cannot go all the way with you.
    你说的我大部分同意,但并不完全赞同。

  • 疑问代词用法:
    1. 疑问代词有who, whom, whose, which和what, 都是用来构成疑问句的:
    Who is calling? 谁打电话来?
    Whom do you want to speak to? 你想找谁接电话?
    作主语时用who,作宾语时用whom,在口语中用who作宾语时也不少:
    Who did you mean? 你指的是谁?
    Who are you talking about? 你们在讲谁?
    直接跟在介词后时只能用whom:
    With whom did you come? 你和谁一道来的?
    (口语中说“Who did you come with?时更多一些。)

    2. 其他三个疑问代词可用作:
    1)主语:
    What’s your address? 你的地址怎样写?
    Whose is better? 谁的好一些?
    Which of these is yours? 哪一本是你的?
    2)宾语:
    What do you mean? 你是什么意思?
    Which do you like better? 哪一个你更喜欢一些?
    Whose have you chosen? 你选了谁的?
    3)表语:
    What’s her name? 她叫什么名字?
    Whose is it? 这是谁的?
    4)定语(这样用时有些字典标作形容词):
    What time does the train leave? 这列火车什么时候离开?
    Which room shall we stay in? 我们住哪间房?
    Whose passport is this? 这是谁的护照?

考点名称:实义动词的过去式

  • 表示一般过去式的动词通常用动词的过去式形式来表示,而动词的过去式是在动词原形的基础上变化的。
    动词的过去式可分为规则动词和不规则动词。

  • 实意动词过去式变化规则:

    分类 构成 例句
    一般情况下 在词尾直接加ed ask—asked
    work—worked
    以不发音的e结尾 只加d

    love—loved

    dance—danced

    以辅音字母加y结尾 变y为i,再加-ed try—tried
    study—studied
    以一个元音字母和一个辅音结尾的
    重读音节结尾的动词
    先双写末尾一个字母,再加ed stop—stopped
    permit—permitted
    “-ed”的读音规则 1.在清辅音后面读[t],如:help—helped[helpt]
    2.在浊辅音或元音后读[d],如:learn—learned
    3.在[t]和[d]后读[id],如:want—wantedneed—needed
    注:以l结尾的动词,尾音节重读时,双写l,如control—controlled;
    尾音节不重读时,双不双写都可以,如travel—traveled/traveled。
    特例:picnic—picnicked,另外还有很多动词的过去式是不合乎上述规则的,常见的有:
    常用的有:
    begin—began,         bring—brought,        come—came,        draw—drew,
    drink—drank,          drive—drove,          eat—ate,                feel—felt,
    get—got,                  give—gave,              go—went,             grow—grew,
    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) 

  • 实意动词过去式用法基本句式:
    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。

  • 实义动词的一般过去时态:
    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:
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