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中考英语重点语法辨析(4)


    例: Susan’s parents have bought a large house with a swimming pool. It ___ be very expensive.(2003年上海中考题)
    A. must B. can. C. mustn’t D. can’t
    【解析】一定要注意情态动词的表示推测的用法。Must 表示肯定的推测。而can’t表示否定的推测。本题是说:这个大房子一定很贵,是肯定的推测。所以选择A.
    名词的重要考点
    名词的复数变化
    名词复数的规则变化是:
    ①一般在词尾加“s”如:desk+s [-ks]  bag+s [-gz] bed+s[-dz] hat+s [-ts]
    ②以字母 s、x、sh、ch结尾的名词变复数,通常在词尾加“es”,如:bus+es [-iz] box+es [-iz] brush+es [-iz] watch + es [-iz]
    ③以字母o结尾的名词变复数, 一般在词尾加“s”,也有加es的,如:photo+s [-z]  tomato+es [-z]
    ④以f或fe结尾的名词一般变f或fe为v再加es,例如:
    knife─knives[-vz]  leaf─leaves [-vz]
    ⑤以辅音字母加y结尾的名词,变复数时改y为i,再加es, 如: baby ─ babies  factory─factories
    例:There are ____ in the field. They're eating grass.
    A. a horse           B. much horses
    C. many horse     D. many horses
    答案:D
    例:Look at the _____. You can see ____ and ______.
    A. photos; potatoes, tomatoes,radioes
    B. photoes; potatoes, tomatoes, radios
    C. photos; potatoes, tomatoes, radios
    D. photoes; potatos, tomatos, radioes
    答案:C
    名词复数的不规则变化就需要我们记忆了
    child ─children   fish─fish    foot─feet
    man ─ men  woman ─ women  tooth ─ teeth
    sheep ─ sheep
    注意:某些名词只有复数形式,例如:people (人们) clothes (衣服) trousers (裤子) police (警察) glasses (眼镜)
    不可数名词的量
    【分析】不可数名词的量化表达
    a piece of      a bag of     a bottle of
    a cup ofa glass of   a basket of
    例: He often has ____ forbreakfast.
    A. two breads B. twopiece of breads
    C. two pieces of bread   D. twopieces of breads
    答案:C
    例: I'd like some water, but he wants ________.
    A. two bottleorange
    B. two bottles of orange
    C. two bottlesoranges
    D. two bottles of oranges
    答案:B
    名词所有格
    有生命的名词所有格,其构成分下列四种:
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