I. 可数名词名词可分为可数名词和不可数名词两部分。
其中，可数名词是表示能够计算的人或物的名称，他们通常有单数和复数的形式。
单数通常用a,an或者是one来表示。
an用在元音字母的前面。
如：a desk, an apple, one boy.·可数名词的变化规则1、直接在单词的后面加-s.photo---photos book---books egg---eggs student---students pen---pensvillage---villages cloud---clouds flower---flowershand---hands map---maps girl---girls2、如果单词以s,x,ch,sh结尾，通常要在单词后面加-es.bus---buses class---classes box---box dress---dresses peach---peaches watch---watches fish---fishes3、以辅音字母+y结尾的单数名词要把y变为i，再加-es.如果y的前面是元音字母，则直接加上-s.family---families story---stories baby---babies day---days toy---toys boy---boys4、以f,fe结尾的单词，要把f,fe变为v，再加-es.knife---knives wolf---wolves shelf---shelves5、以-o结尾的名词，如果不是外来词或缩写，就加-es，否则加-s构成复数。
（有生命的加es，无生命的加s）potato---potatoes tomato---tomatoes hero---heroesradio---radios photo---photos piano---pianos zoo---zoos6、一些特殊的不规则名词的复数。
goose---geese foot---feet tooth---teeth woman---women man---mensheep---sheep fish---fish deer---deer people---people child---childrenmouse---mice7、有些名词是通常以复数形式出现的，如：shoes, pants, boots, glasses等。
1II.不可数名词1.一般来说，不可数名词主要是以物质名词与抽象名词为主。
它们通常没有复数形式，也不能与a ,an 连用。
在表示“一”或“几”的数量概念时，不可数名词必须与相应的量词连用。
如果时表示复数的数量关系时，则把量词变化，不可数名词不变。
修饰不可数名词的数量词语有：some, any, much, a lot of, a little等。
例如：a box of milk 一盒牛奶 some water 一些水much food 大量的食物 a little time 一点时间2.some 与 any 词语辨析some与any都表示“一些”，但它们的用法不同。
some用在肯定句中。
而any用在否定句与一般疑问句中。
同学们要特别注意的是：some还可以用在客气请求的一般疑问句中。
例子：I have some beautiful stamps.（肯定句）I don’t have any beautiful stamps.（否定句）Do you have any beautiful stamps?（一般疑问句）A: Can I have any some bananas?B: Sure.（客气请求的一般疑问句）3.many ,a lot of ,much 词语辨析many ,a lot of ,much ,这三个词都是表示“许多”。
many是用来修饰可数名词, much 用来修饰不可数名词，a lot of则用来修饰可数与不可数名词。
例子：Peter has many friends .（可数名词的前面）Peter has much food for his birthday party. （不可数名词的前面）Peter has a lot of friends. （可数名词的前面）Peter has a lot of food for his birthday party. （不可数名词的前面）·不可数名词的归类1、表示液体：water, juice, milk, coffee, coke2、表示自然现象：snow, rain, ice3、表示食品类：rice, jam, honey, meat, bread, mutton, beef, tofu, eggplant,pork, chicken, fish, food4、其它类：newspaper, news, homework, housework21.给出下列单词的复数形式。
orange class text monkeypiano child shelf bedbaby country family toyfoot Japanese radio photoarmy tomato fox womanknife sheep pen egg student girl zoo wife story man boy people 2.选择填空1）There on the wall .They are very beautiful.A. are photoesB. are photosC. is a photoD. is photos2）This kind of car made in China.A. is B .are C .were D .has3）That’s art book.A. anB. aC. the D are4）The boys have got already.A. two breadB.two breadsC.two pieces of breadD.two piece of bread5）The old man wants .A.six boxes of applesB.six boxes of appleC.six box of applesD. six boxs of apples7）There some in the river.A. is ,fishB. are, fishsC. is, fishsD. are ,fish8）There two in the box.A. is watchB. are watchesC. are watchD. is watches9）We should clean twice a day.A .our tooth B. our tooths C.teeth D.our teeth3watch child photo diary day foot book dress tooth sheep box strawberry thief yo-yo peach sandwich man woman paper juice___________ water milk rice teadeer people tomato leaf puppy box knife foxbus bench brush kiss church dish ruler peachglass pencil boy zooman roof sheep knifelady key story watch horse city family dayapple eraser speech thiefmouse fish goose peopleox Chinese deer footchild tooth guy herospy boss monkey citygoat radio potato dogorange class text monkeypiano child shelf bedbaby country family toyfoot Japanese radio photoarmy tomato fox womanknife sheep pen egg student girl zoo wifestory man boy people4be动词：be动词有三兄弟：is，am, are 。
I(我)用am, you(你)用are, is跟着he(他) she(她) it(它)，we(我们) you(你们)和they(他们)，复数（两人以上）永远连着are.解析: I am; You are; He is; She is; It is; We are; You are; They are.1.否定句只需要在be动词后加 not,即:am not, is not=isn't are not = aren't2.一般疑问句只需要将be动词提前至句首.即:Is .......? Are ........?1)I _____ a student. 2) You ____ a teacher.3)____she from Jinan? No, she ____. 4) _____you friends? No, we____.5) He _____ in Class 4, Grade 1. 6) It_____ a car.7) They ____ cars. 8) ____ your mother in China?9) _____your friends in New York? 10) What ____her name?11) These（这些） _____ buses. 12) Those（那些） _____oranges.13) Where _____ her mother? 14) How old _____your teacher?15) What class _____ you in? 16)This ____ my brother（哥哥、弟弟）.17)That ____ a pencil. 18)Mike and I____ students.19)____ there an apple on the table（桌子）? Yes, there ____.20)There____many books in the study.21)There____some ice cream in the fridge（冰箱）.22)There____a pear and some cakes on the table.23)The children___ playing in the bedroom.24)The rabbits__________ eating grass.25) What______ your favorite subject（科目）?26) The girl__________drawing.27) "I"___ a letter（字母.）28. I ______ a boy. ______ you a boy? No, I _____ not.29. The girl______ Jack's sister（姐姐、妹妹）.30. The dog _______ tall and fat.31. The man with big eyes _______ a teacher.32. ______ your brother in the classroom（教室）?33. Where _____ your mother ？She ______ at home.34. How _______ your father?35. Mike and Liu Tao ______ at school.36. Whose dress ______ this?37. Whose socks（袜子） ______ they?38. That ______ my red skirt.39. Who ______ I? 40.The socks ______ on thedesk.41. Here ______ a book for you.42. Here ______ some sweaters（毛衣） for you.43. The black shoes（鞋子） ______ for Su Yang.44. _______ there any kites in the classroom?45. There ______ some apples on the tree.46.Some tea ______ in the glass.47. Gao Shan's shirt _______ over there.48. My sister's name _________Nancy.49. This ______ not Wang Fang's pencil.50. ______ David and Helen from England? 51. There ______ a girl in the room.5be动词，情态动词，助动词do/does的用法区别及练习1.由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。