Unit 7 Happy Birthday讲义 2025-2026学年人教版七年级英语上册
Unit 7 Happy Birthday
语法+课堂练习+回家作业+答案解析
本单元围绕“生日祝福、数字表达、购物询问价格”展开,核心语法聚焦 基数词与序数词的用法、how much引导的特殊疑问句(询问价格)、名词单复数(物品数量表达)、祈使句(购物建议/祝福) 及 介词for的用法(表目的/对象),以下从“语法解析+例题+易错突破”三层面系统梳理。
- 基数词:表示数量(1-100为主),用于询问/表达物品数量、年龄,单元高频场景:生日蜡烛数量、礼物数量、年龄询问(How old are you?)。
- 序数词:表示顺序,用于表达生日日期(几月几日),核心规则:1-3特殊变,4-19加th,20以上整十变ty为tie加th,非整十在个位变序数词。
- 单元重点对应表:
基数词 | 序数词 | 单元应用场景 |
one | first (1st) | January 1st(一月一日)、the first birthday(第一个生 |
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|
| 日) |
two | second (2nd) | March 2nd(三月二日)、the second candle(第二根蜡烛) |
three | third (3rd) | May 3rd(五月三日)、the third gift(第三份礼物) |
five | fifth (5th) | July 5th(七月五日) |
twelve | twelfth (12th) | December 12th(十二月十二日) |
twenty | twentieth (20th) | October 20th(十月二十日) |
twenty-one | twenty-first (21st) | April 21st(四月二十一日) |
- 关键用法:
年龄表达:主语 + be + 基数词 (years old)
例:He is 13 (years old).(他13岁。)
日期表达:月份 + 序数词
例:My birthday is on September 10th.(我的生日在9月10日。)
数量表达:基数词 + 可数名词复数/不可数名词
例:three cakes(三块蛋糕)、five milk shakes(五杯奶昔)
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① How old is she? She is ______ (15) years old.
(答案:fifteen)
② My birthday is on the ______ (3) of June.
(答案:third)
③ There are ______ (20) candles on the birthday cake.
(答案:twenty)
④ Today is my brother's ______ (12) birthday. He gets many gifts.
(答案:twelfth)
⑤ The ______ (5) lesson is about birthday customs.
(答案:fifth)
① He is 14 years old.
____________________________
答案:How old is he?
② Her birthday is on August 8th.
____________________________
答案:When is her birthday?
错误类型 | 错误例句 | 正确例句 | 错误原因分析 |
序数词漏加the | It's July 5th. Today is my five birthday. | It's July 5th. Today is my fifth birthday. | 表达“第几个生日”需用序数词,且序数词前 |
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