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一至三单元单词复习及拔高【一览无余】1、 定义 名词是表示人或事物名称的词。二、名词的数名词分为可数名词和不可数名词。可数名词有复数形式，不可数名词没有复数形式。不可数名词不可以数的名词（没有复数）。如： milkteawaterorange coffee rice bread meat 可数名词可以数的名词 可数名词分为单数和复数。 可数名词单数就是该词本身，在其前面加a或an。 1）单数 如a desk（一张桌子） a book（一本书） 2）复数：要表示一个以上概念时，要用名词复数形式 规则变化 1）一般情况下加-s 如book-books（书）desk-desks（书桌） 2）以s ,x ,ch , sh结尾加-es 如box-boxes（盒子）bus-buses(公共汽车) classclasses dish - dishes3) 以辅音字母+y结尾，变y为i再加- es。 如city-cities(城市)country-countries(国家) library- ( )注意以元音+y，直接加s。如：day-days(天)，boy-boys(男孩) 4)以f或fe结尾，复数变f或 fe 为v再加-es 如knife-knives(小刀) , leaf-leaves（树叶）(thief ,wife ,life , knife ,wolf ) 5)以o结尾 有生命的以o结尾的名词变复数时，词尾加es，凡无生命的以o结尾的名词变复数时，词尾加s。 有生命：potato-potatoes, tomato-tomatoes, hero-heroes, negro-negroes 如无生命：zoo-zoos, radio-radios, photo-photos, piano-pianos, （老师编的技巧）黑人(negro)英雄(hero)一边吃着土豆(potato)、西红柿(tomato)，一边看火山(volcano)。【牛刀小试】一、把单数变成复数bike_ bus_ train_ plane_ship _car _ brush_box_toy_hobby_library_ hospital_cinema_student_bookstore potato 【不规则变化】1) 元音字母发生变化。 如man-men(男人) ， woman-women(妇女) tooth-teeth(牙齿) ， foot-feet(脚) mouse-mice(老鼠) ， policeman-policemen(警察) policewoman-policewomen(女警察) 2) 词尾发生变化。 如child-children(小孩)3) 单、复数形式相同。 如fish-fish(鱼) ，sheep-sheep(绵羊) ，deer-deer(鹿) ，4) 以man或woman为前缀的名词变复数时，前后两个名词都变成复数。 如：woman doctorwomen doctors, man waitermen waiters。 以两个名词构成的复合名词(前面的名词为man或woman除外)，一般把后面的名词变复数。 如：boy friendboy friends, paper bagpaper bags。 【牛刀小试】一、把单数变成复数coat_ skirt_ dress_ house_watch _ job_life_shelf_piano_baby_ photo_sheep_foot_child_ 二、用所给名词的适当形式填空。1. We are _ (student).2. I have five _ (watch).3. Her father is a _ (doctor).4. Whats your（你的） _ (job)?5. What are their （他们的）_ (job)?6. Two _ (wolf) are in the forest（森林）.7. I have two _ (knife). Do you need one?8. There are two red _ (tomato) on the table.9. We have four _ (piano) in our school【一览众山小】一按要求填入单词的适当形式1Two_ live in this building（大厦）. (family)2Look at those（那些） _. (child)3I can see a _ standing near the door. (policeman)4There are some _ on the table. (glass玻璃杯)5Would you like some _? (bread)6I have two _. (sister)7I like _. (cat)8Do you want some _ for supper? (potato)9He has two _. One is old ,the other is new .(watch)10In autumn（秋天） ,you can see a lot of（许多） _ on the ground（地上）. (leaf叶子)二选用下列正确的单词或词组，在正确的选项上打1Do you drink much (milk, milks)?2I visited（参观） (Tom, Toms) house yesterday（昨天）.3He had two (cup ,cups) of tea.4This is (Tom and Marys ,Tom and Mary) house.5Give me a (piece of ,)paper（纸）, please.6I dont want (a, an)old cap（帽子）.7Look at those (sheep, sheeps ).8How many (radioes , radios ) can you see?9There are 36 (boys, boies) in my class（班级）.
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