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1、Unit7语法篇 _1.熟练掌握基数词的基本用法基数词1. 基数词表示数目或数量的多少。2. 基数词的表达法 one 1eight 8fifteen 15thirty 30 two 2nine 9sixteen 16forty 40 three 3ten 10seventeen 17fifty 50 four 4eleven 11eighteen 18sixty 60 five 5twelve 12nineteen 19seventy 70 six 6thirteen 13twenty 20eighty 80 seven 7fourteen 14twenty-one 21ninety 903.
2、 基数词书写的几点注意事项： (1) one到twelve，拼写和读音没有什么相似之处，无规律可言，应逐一记忆。 (2) thirteen到nineteen，表示“十几”，在个位数后加后缀-teen，读作/ti:n/。其中要注意thirteen,fifteen和eighteen的拼写。 (3) twenty到ninety，表示“几十”，以-ty结尾，但需注意下面几个词的拼写：twenty,thirty, forty, fifty,eighty。 (4) 21-29直到91-99，表示“几十几”，用整十位数加个位数表示，中间用连词符“-”把十位数和个位数连接起来。 21 twenty-one 3
3、5 thirty-five (5) one hundred意为“一百”，表示一百还可以用a hundred。要表示200-900，用“具体数字+hundred”。 200 two hundred 900 nine hundred4. 用法(1)表示年龄，基数词放在years old之前。 He is twelve years old.(2)用来表示人或物的数量，放在名词之前。 I have three balls.(3)表示顺序、编号等，放在名词之后。 Im in Class Four.(4)用来计算。Two and six is eight.单项选择1.（贵州安顺中考改编）-David ,h
4、ow old is your father this year ? - .A. FourB. FortyC. Fourty D. Fourteen2.（四川宜宾中考）-If a=2 and b=4, whats the answer to the problem :a+b+1= ?-The answer is .A. twelveB. nineC. eightD. seven3. and seven is twelve?A. FiveB. SixC. SevenD. Eight4.-A week has days .A. sixB. fiveC. sevenD. eight5. My daug
5、hter is . A. elevenB. eleven-years oldC. eleven oldD. eleven-year old6.-Tom is a student . Hes in ?A. the class 5B. Class 5C. five classD. fifth class7.-Whats twelve and thirteen ?-Its .A. twenty fifthB. twenty-fiveC. five-twentyD. twelve and thirteen 解析及答案：1. 句意：戴维，你的父亲今年多大岁数了？回答：40岁了。故选B。2. 题干信息是“
6、如果a=2,b=4,a+b+1=?”由数学知识推理可知答案是7，故选D。3. 句意为“5加7等于12”。故选A。4. 由常识可知“一周有7天”，故选C。5. 表示某人年龄可以直接用数字，或是“基数词+year(s)+old”，故选A。6. 基数词表示顺序时，可用“单数名词+基数词”，且名词和基数词的首字母要大写。选B7. 25的正确表达应为“twenty-five”,故选B.基础演练一、用英文数字填空1. forty-eight - twelve= _2. ninety + five = _3. thirteen + seven = _ 4. eighty - forty= _5. seven
7、ty - fourteen = _6. eighty - sixteen = _7. sixty - thirteen = _ 答案：1. twenty2. ninety-five3. twenty4. forty5. fifty-six6. sixty-four7. forty-seven二、单词拼写(单句首字母填空)1. My class has t students, ten girls and twenty boys.2. There are t months(月) in a year.3. A quarter (一刻钟) has f minutes(分钟).答案：1. thirty2
8、. twelve 3. fifteen巩固提高三、翻译1. 电话号码8485308 _ 2. 成千上万的儿童 _ 3. 两个月半 _4. 45路公共汽车 _ 5. 两周半 _6. 这本书我昨晚读了20页。_.7. 最近的医院离他们学校约45公里。_8. 在二十世纪三十年代 _答案1. Telephone number/ Tel. No. eight four eight five three o eight2. thousands of children 3. half and two months/ two months and a half4. No. 45 bus/ Bus 455. h
9、alf and two weeks/ two weeks and a half 6. I read so pages of the book yesterday evening.7. The nearest hospital is about four to five kilometers from their school.8. in the 1930s一、单项选择1. Please turn to _.A. Page 11 B. the 11st. page C. page 11 D. page the 11th.2. At night we can see _ stars in the
10、sky.A. thousands and thousands of B. thousand and thousands ofC. a thousand and thousands D. thousand and thousand3. There are some _ in our classroom.A. hundred of books B. the hundreds of booksC. hundreds of books D. hundred of book4. I have been to the village _. A. a hundred timeB. hundred times
11、 C. hundreds of times D. hundred of times5. There are _ students in our school.A. fourhundred and fortyfive B. four hundred and fortyfiveC. four hundreds and fortyfive D. four hundred and forty five6. He said he was going to be free in _.A. one and a half hour B. one hour and halfC. one and half hou
12、rs D. an hour and a half7. -How many English books are there on the table?-There is only _English book on it.A. a B. an C. one D. the8. Mr. Smith stayed in _ last night.A. Room 403 B. the Room 403 C. the 403 room D. 403 the room9. The road is _.A. two thousand and five hundred metres longB. two thousands metres longC. long one thousand five hundred metre D. a thousand and five hundreds metres long10. Is Sunday the _ day of the week?A. a B. one C. once D. first
