内容正文:
小学英语
知识点
汇总秘籍
Irons
1、 数词
1. 基数词与序数词
① 基变序,有规律,末尾加上-th
② 一二三,特殊记
③ 八加h,九去e,然后再加-th
④ ve 要用f替,然后再加-th (five-fifth twelve-twelfth)
⑤ 以y 结尾变ie,后跟th 莫忘记(y→ieth)(40:forty-fortieth)
⑥ 若想表达几十几,只变个位就可以
⑦ 序数词前常加the/“某人的”(所有格、物主代词)(只能选一个)
2. 时间的表达
① 不超过30分钟的用 “past”,即:分钟+ past +钟点数
5:10 - ten past five
② 超过30分钟的用“to”,即:(60-分钟数)+ to +(钟点数+1)
3:55 - five to four
③ 等于30分钟的用“half”,即: half+ past
6:30 - half past six
④ 表示一刻钟常用 “a quarter”
2:15 - a quarter past two 3:45 - a quarter to four
3. 百千的用法
① 数量词+hundred/thousand + 名词的复数 口诀:
有数字没s没of
没数字要加s还有of
five hundred/thousand students 五百/千个学生
② hundreds/thousands of + 名词的复数
Hundreds/thousands of students 数以百计/千计的学生
4. 年龄的用法
① 基数词-year-old 几岁的(用在句中)
five-year-old 五岁的
② 基数词 year(s) old 几岁 (用在句尾)
five years old 五岁
③ 用an的岁数:8、11、18、80-89(e开头)
a one-year-old boy 一个一岁的男孩
5. 名词+基数词的表达
Room 201 201房间 Unit Six 第六单元大名+大基
Class Five, Grade Seven 七年级五班
6. “半”的表达
① half an hour 或 a half hour半小时
② one and a half hours或 an/one hour and a half 一个半小时
7. 频率
一次once、两次twice、三次及以上:基数词 + times
注意:
如果出现的是once a day, twice a week等表达,用How often提问(频率);
如果是once, twice, three times等单独出现,用How many times提问(次数)。
练习
1. ( )
There are ______ months in a year. October is the ______ month.
A. twelve; ten
B. twelfth; tenth
C. twelve; tenth
D. twelfth; ten
2. ( )
--When is your father’s birthday? -- It’s of April.
A. twenty-five
B. twenty-fifth
C. twenty-ninth
D. the twenty-fifth
3. ( )
There are minutes in an hour.
A. sixtieth
B. sixteen
C. sixty
D. six
4. ( )
I’m in _______.
A. Class two, Grade five
B. Grade five, Class two
C. class two, grade six
D. Class Two, Grade Five
5. ( )
Your seat is in .
A. Row nine
B. the nine row
C. the ninth row
D. the nineth row
6. ( )
He wrote h