资源简介

(共27张PPT)
Grammar
Unit1
Home
能掌握序数词的概念、构成和用法。
01
02
学习目标
能掌握基数词的概念、构成和用法。
一、基数词的概念
We use cardinal numbers almost every day. We use them to talk about the numbers of people or thing.
① Four students are playing volleyball outside.
② There are 20 desks in the classroom.
③ I have two brothers and one sister.
基数词
表示数量的多少
新课讲授
Presentation
0～12为基本单词:
zero one two three four five six seven eight nine ten eleven twelve
13-19为对应的个位数单词(或变形)后加-teen:
thirteen fourteen fifteen sixteen seventeen eighteen nineteen
二、基数词的构成
20、30、... 90为其对应个位数单词(或变形)后加-ty:
twenty thirty forty fifty sixty
seventy eighty ninety
20以上的非整十数，十位与个位之间用连字符"-"。
21 twenty-one 99 ninety-nine
101～999的三位数，百位数和十位数（若无十位数则和个位数）之间用and连接，百后用单数形式。
100 one hundred
200 two hundred
101 one hundred and one
When we say 'thirteen', we stress the second syllable. When we say 'thirty', we stress the first syllable.
千位数thousand用法同hundred，跟在数词后，表示具体的数字时，通常使用单数形式。
five thousand books 五千本书
2,345 = two thousand three hundred and forty-five
万以上的较大数字：million是100万，用法同hundred，thousand，跟在数词后，表示具体的数字时，通常使用单数形式。
two million 两百万
23,456 = twenty-three thousand four hundred and fifty-six
234,567 = two hundred and thirty-four thousand five
hundred and sixty-seven
4,056 = four thousand and fifty-six
23,813 = twenty-three thousand eight hundred and thirteen
567,110 = five hundred and sixty-seven thousand one hundred and ten
6,425,000 = six million four hundred and twenty-five thousand
Try to read the big numbers below.
We often use a comma or a space to separate big numbers into groups of three from right to left.
在用阿拉伯数字记录较大数目时，通常用逗号或空格将大数目分隔，从个位开始，三个一组。
三、基数词的用法
Read the text below about Neil's home and pay attention to the use of cardinal numbers.
Neil's home is about 15 miles from London. It is on 28 Rose Street. It has an area of 160 square metres. His phone number is 0207 000 1111.
Neil loves taking pictures. He has about 2,000 pictures on his phone. They are very beautiful!
We can use cardinal numbers to talk about distance, house numbers, areas, ______________, years, the number of people and things, etc.
Work out the rule
phone numbers
1 We live in Room 806, Building 15, City Garden.
2 Our flat is 98 square metres in area.
3 Our phone number is 010-1212 1212.
4 My sister Annie is nine years old, and she is in Grade 4.
5 Mum usually gets up at 6:45 in the morning.
6 My computer costs 4,550 yuan.
Simon is writing about his home and family. Read the sentences below and pay attention to the numbers in his writing.
eight o six fifteen
o one o one two one two one two one two
ninety-eight
four
six forty-five fifteen/a quarter to seven
four thousand five hundred and fifty
Practice
Talk with your partner about your home and family, using cardinal numbers.
We use ordinal numbers to show the order of things.
一、序数词的概念
1. Women's Day is on the eighth of March.
2. Our flat is on the seventh floor.
3. She was third in the competition(比赛).
序数词
表示顺序的先后
Presentation
1) 一般来说，是由相应的基数词加词尾th构成。
◇ four + th
◇ seven + th
◇ ten + th
2) 有些基数词在变为序数词时，有特殊的变化。
◇ one ◇ two
◇ three ◇ five
◇ eight ◇ nine
◇ twelve
→ fourth
→ seventh
→ tenth
→ first
→ third
→ eighth
→ twelfth
→ second
→ fifth
→ ninth
二、序数词的构成
3) 20、30、... 90，十位整数序数词的构成方法是将基数词的词尾y变成i，然后再加eth。
◇ twenty
◇ thirty
→ twentieth
→ thirtieth
◇ twenty-one
◇ thirty-five
◇ one hundred and one
4) 20以上两位或两位以上的基数词变成序数词时，仅将个位数变成序数词。
→ twenty-first
→ thirty-fifth
→ one hundred and first
◇ forty
◇ ninety
→ fortieth
→ ninetieth
one two three four five
six seven eight nine ten
first
second
third
fourth
fifth
sixth
seventh
eighth
ninth
tenth
1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th
eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty
eleventh
twelfth
thirteenth
fourteenth
fifteenth
sixteenth
seventeenth
eighteenth
nineteenth
twentieth
11th 12th
13th
14th
15th
16th
17th
18th
19th
20th
基数词 & 序数词
基数词 序数词
基数词 序数词
twenty-one twenty-two twenty-three thirty forty fifty sixty seventy eighty ninety
one hundred
twenty-first
twenty-second
twenty-third
thirtieth
fortieth
fiftieth
sixtieth
seventieth
eightieth
ninetieth
one hundredth
21st 22nd 23rd 30th 40th 50th 60th 70th 80th 90th 100th
基数词 序数词
三、序数词的用法
Read the sentences below about Li Mengtian and pay attention to the use of ordinal numbers.
Li Mengtian lives on the twenty-second floor.
Her birthday is on the twentieth of February.
She is in the seventh grade.
She is always the first in her class to get to school.
We use ordinal numbers to talk about the order of things and events. We use them to talk about grades, dates, __________ positions, etc.
Work out the rule
floors
序数词前常用定冠词the或物主代词，有时也可用不定冠词或零冠词。
Today is the second of March.
This is my first visit to Shanxi.
Their horse came third in the race last year.
今天是三月二日。
这是我第一次到山西。
他们的马在去年的比赛中获得了第三名。
1. 基变序，有规律，词尾加上th
2. 一二三 特殊记(first，second，third)
3. 八加h(eighth), 九减e(ninth)
4. ve要用f替，(five fifth；twelve twelfth)
5. 变y为ie，(twenty twentieth，
thirty thirtieth)-th最后加上去
6. 若是第几十几，前为基，后为序
(twenty-one twenty-first;
twenty-four twenty-fourth)
基数词变序数词顺口溜
17
15
14
10
12
13
19
22
21
29
30
31
19
26
Say together:
(Cardinal Numbers + Ordinal Numbers)
Game time
6th=
7th=
8th=
9th=
10th=
Simon is doing a test on ordinal numbers. Look at the numbers below and write the numbers out in words.
12th=
14th=
19th=
20th=
21st=
22nd=
30th=
40th=
90th=
100th=
1st=
2nd=
3rd=
4th=
5th=
first
second
third
fourth
fifth
sixth
seventh
eighth
ninth
tenth
twenty-second
twelfth
fourteenth
nineteenth
twentieth
thirtieth
fortieth
ninetieth
hundredth
twenty-first
Practice
Simon wants to tell his friends about the three plete his sentences with the correct ordinal numbers.
1 Li Mengtian lives in a building with 22 floors. Her home is on the top floor, the _________________ floor. Her family always eat yuanxiao on the Lantern Festival — the __________ day of the first month in the Chinese lunar calendar.
2 Neil is a Grade 7 student. He is in the ___________ grade. He is usually the __________ to get up in his family because he likes jogging in the morning. His mum is the second one, right after Neil.
3 Femi's birthday is in March, the _________ month of the year. Today is his _____________ birthday. He is 13 years old now.
twenty-second
fifteenth
seventh
first
third
thirteenth
用括号中所给提示填空。
1. My uncle lives in a town _______ (15) kilometers from Yangzhou. [2023 扬州市]
2. This piece of music is so beautiful that I'd like to listen to it a _______ (two) time. [2023 兰州市]
3. Jiang Shumei, born in 1937, spent (度过) most of her time working in a factory. In 1996, she learned her ________ (one) Chinese character (汉字). Sixteen years later, she started to write down some of her own stories. [2024 南充市]
fifteen
second
first
Write a short text about your family life, using both cardinal numbers and ordinal numbers.
My family lives in a building with 28 floors. My home is on the sixteenth floor. There are only three people in my family. My mother is usually the first to get up every morning because she makes breakfast for us. I am the second one, and I often get up at 7:00 a.m. Every evening, I spend twenty minutes jogging with my father. I usually go to bed at 9:30 p.m. My family life is simple, but I like it very much.
1. There are __________ circles on the Olympic flag.
2. A butterfly has __________ wings.
3. There are __________ months in one year.
4. A spider has __________ legs.
5. __________ minutes is one hour.
Ⅰ. 请根据图片内容，选择合适的基数词完成句子。
five
four
twelve
eight
Sixty
当堂检测
1. The firefighters saved eight people in the big fire, three men and ______ women.
2. The _______ letter of the alphabet (字母表) is I.
3. Mother's Day is on the _______ (two) Sunday of May every year.
4. — Sir, your room is on the _____ (five) floor of the hotel.
— I see. Thank you.
five
second
fifth
II. 根据句意或提示完成句子。
ninth
1. 娜娜试穿了三双鞋，她喜欢第三双。
Nana tried on three pairs of shoes, and she liked
_____ ______ pair.
2. 玛丽的生日是6月6日，她认为6是她的幸运数字。
Mary's birthday is on ______ _________ of June. She thinks ______is her lucky number.
3. 卡拉是她的第一个还是第二个孩子？
Is Carla her _______ or ________ child
4. 这是我的公寓，我住在23层。
This is my flat. I live on ______ ______________ floor.
the sixth/6th
six/6
the third
III. 根据所给汉语提示，完成下列句子。每空一词。
first
second
the twenty-third
Remember all the new words on pages 11-12.
Preview Pronunciation on page 13.
Homework

展开更多......

收起↑