Module 1 Amazing things Unit2 Numbers第3课时 Grammar课件(共32张PPT)
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| 名称 | Module 1 Amazing things Unit2 Numbers第3课时 Grammar课件(共32张PPT) |  | |
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| 更新时间 | 2022-09-25 21:52:37 | ||
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(共32张PPT)
Module 1 Amazing things
Unit2 Numbers
第3课时 Grammar
目录
01
02
课堂练习
语法聚焦
语法聚焦
一、基数词
1. 基数词的构成
(1)1～12是各自独立的形式；
(2)13～19均以后缀-teen结尾，如14→fourteen;特殊拼写的有：thirteen, fifteen, eighteen；
(3)20～90的整十基数词均以后缀-ty结尾，如60→sixty;特殊拼写的有：twenty, forty, fifty, eighty；
(4)100及100以上的基数词：hundred百，thousand千，million百万，billion十亿。
2.基数词的写法
(1)21～99的两位数，十位与个位之间用连字符“-”。如：
21→twenty-one45→forty-five
(2)101～999的三位数，百位数和后面的数之间用连词and。如：
101→one hundred and one987→nine hundred and eighty-seven
(3)1 000以上的数，从右边开始数，每三位中间加一个“，”，第一个“，”前为thousand，第二个“，”前为million，第三个“，”前为billion。如：
2,648→twothousand six hundred and forty-eight
32,542,650→thirty-twomillion five hundred and forty-twothousand six hundred and fifty
3. hundred，thousand，million和billion的用法
(1)当与具体的数字连用时，不加-s和of。如：
four hundred students 400名学生three thousand trees
3 000棵树
(2)当表示不确切的数量，如成百上千、成千上万等时，须加-s和of。如：
There are hundreds of people in the hall. 大厅里有数百人。
Thousands of people come to visit the Great Wall every day．每天有成千上万的人来参观长城。
4.基数词的常见用法
(1)时刻、年份的读法。如：
8：30→eight thirty2021→twenty twenty-one
(2)表示年龄：数字+year（s）+old。如：
ninety years old 90岁one year old 1岁
注意：“数字-year-old”也表示岁数，但只可做定语，后面须有名词。
(3)用整十基数词的复数表示年代或人的岁数。如：
in the sixties 在60年代in his eighties 在他80多岁时
(4)价格、公共汽车、房间号及电话号码的读法。
二、序数词
1.序数词的构成
(1)一般是在相应的基数词后加-th构成，如four→fourth，特殊变化的有：one→first，two→second，three→third，five→fifth，eight→eighth，nine→ninth，twelve→twelfth；
(2)20～90的整十序数词的构成方法是将基数词的词尾y变成i，再加-eth，如：twenty→twentieth；
(3)21～99的基数词变为序数词时（不包括整十），仅将个位数变为序数词即可，如twenty-one→twenty-first；
基数词变序数词口诀：基变序，有规律，词尾加上th； 一二三，特殊记，词尾字母tdd； 八去t，九去e，ve要用f替；整十把y变ie；若是遇到几十几，只变个位就可以。
2. 序数词的常见用法
(1)序数词前通常加the。如：the second picture 第二张图
(2)表示某人多少岁生日。如：his fifteenth birthday 他的15岁生日
(3)序数词前加a /an，表示“再……；又……”。如：try a third time 再试一次（已试过两次）
(4)日期的读法。如：the first of October 10月1日
(5)表示楼层：on the+序数词+floor。如：on the fifth floor 在5楼
4. 必背数词
数字 基数词 序数词 缩写
1 one first 1st
2 two second 2nd
3 three third 3rd
4 four fourth 4th
5 five fifth 5th
6 six sixth 6th
7 seven seventh 7th
数字 基数词 序数词 缩写
8 eight eighth 8th
9 nine ninth 9th
10 ten tenth 10th
11 eleven eleventh 11th
12 twelve twelfth 12th
13 thirteen thirteenth 13th
14 fourteen fourteenth 14th
15 fifteen fifteenth 15th
数字 基数词 序数词 缩写
18 eighteen eighteenth 18th
19 nineteen nineteenth 19th
20 twenty twentieth 20th
21 twenty-one twenty-first 21st
22 twenty-two twenty-second 22nd
23 twenty-three twenty-hird 23rd
30 thirty thirtieth 30th
40 forty fortieth 40th
数字 基数词 序数词 缩写
50 fifty fiftieth 50th
60 sixty sixtieth 60th
70 seventy seventieth 70th
80 eighty eightieth 80th
90 ninety ninetieth 90th
100 one hundred one hundredth 100th
1 000 one thousand one thousandth 1,000th
三、数字运算的表达
1. 加法：Add … and … / … plus …
Add 22 and 55 is 77.=22 plus 55 equals 77. 22加55等于77。
2. 减法：Subtract … from … / … minus …
Subtract 2 from 30 is 28.=30 minus 2 equals 28. 30减2等于28。
3. 乘法：Multiply … by … / … multiplied by …
Multiply 6 by 8 is 48. =6 multiplied by 8 equals 48. 6乘8等于48。
4. 除法：Divide … by … / … divided by …
Divide 12 by 4 is 3.=12 divided by 4 equals 3. 12除以4等于3。
课堂练习
一、用所给单词的适当形式填空
1.Tree-planting Day is on the ____________（twelve）of March every year.
2. Two ____________（three）of the students in our class are boys.
3. ____________（thousand）of volunteers tried to help the people who lost their homes in the earthquake.
twelfth
thirds
Thousands
4.Next Sunday is my grandpa' s ____________（ninety）birthday.
5. This story happened at the beginning of the _______________（twenty-one）century.
6. You can buy a TV set on the ____________（nine）floor of the shopping mall.
7. The World Volunteers' Day is on December the ____________（five）.
ninetieth
twenty-first
ninth
fifth
8. He tried a ____________（four）time, but without luck, he failed again. He just smiled and tried again.
9. In her ____________（thirty）, she had a second child.
10. My family have been to Beijing ____________（two）to climb the Great Wall.
fourth
thirties
twice
二、选择填空
( )1. —We should try to devote（献身于）ourselves to our country like Yuan Longping.
—I think so.He still worked on the research into agriculture（农业）at the age of ________. （2021鞍山）
A．eighties B．eightieth
C．eighty D．eighty-year-old
C
( )2. —China is a great country with a history of about five ________ years.
—Yes. And ________ of foreigners come to visit it every year. （2021滨州）
A. thousand; thousand B. thousands; thousands
C. thousand; thousands D. thousands; thousand
C
( )3. —How many students in your class get to school on foot？
—About ________ of them do. （2021朝阳）
A．three fifths B．two third
C．first four D．one seconds
A
( )4. On July 1st, we' ll celebrate the ________ birthday of the CPC.（2021株洲)
A. hundredth B. hundred
C. hundreds
A
( )5. My aunt has only one child, and she wants ________ child. （2021恩施州）
A.the second
B. a second
C. two
B
三、语法填空
Jennifer is a primary school student and she does well in studying, 1. ____________ (especial) in Maths. Last week，she got a good mark in the Maths exam again. Other students often check answers 2. ______ her. This afternoon, I 3. _________ (hear) she said on the phone that five plus eleven should be sixteen, eight divided 4. ______
especially
with
heard
by
two should be four, four multiplied by three should be
5. _________ (twelfth) and nine minus three should be six.
All of them were right in 6. ______ (do) these exercises. 7. ____________, there was a question that they didn' t know 8.______ to solve—what is two hundred multiplied by ten After asking 9. ____________ (they)
twelve
doing
However
how
their
teacher for help, they knew the answer was two thousand.In the future, they will meet even larger numbers so they should keep working hard together like this and 10. ____________ (enjoy) themselves.
enjoying
THANKS!
Module 1 Amazing things
Unit2 Numbers
第3课时 Grammar
目录
01
02
课堂练习
语法聚焦
语法聚焦
一、基数词
1. 基数词的构成
(1)1～12是各自独立的形式；
(2)13～19均以后缀-teen结尾，如14→fourteen;特殊拼写的有：thirteen, fifteen, eighteen；
(3)20～90的整十基数词均以后缀-ty结尾，如60→sixty;特殊拼写的有：twenty, forty, fifty, eighty；
(4)100及100以上的基数词：hundred百，thousand千，million百万，billion十亿。
2.基数词的写法
(1)21～99的两位数，十位与个位之间用连字符“-”。如：
21→twenty-one45→forty-five
(2)101～999的三位数，百位数和后面的数之间用连词and。如：
101→one hundred and one987→nine hundred and eighty-seven
(3)1 000以上的数，从右边开始数，每三位中间加一个“，”，第一个“，”前为thousand，第二个“，”前为million，第三个“，”前为billion。如：
2,648→twothousand six hundred and forty-eight
32,542,650→thirty-twomillion five hundred and forty-twothousand six hundred and fifty
3. hundred，thousand，million和billion的用法
(1)当与具体的数字连用时，不加-s和of。如：
four hundred students 400名学生three thousand trees
3 000棵树
(2)当表示不确切的数量，如成百上千、成千上万等时，须加-s和of。如：
There are hundreds of people in the hall. 大厅里有数百人。
Thousands of people come to visit the Great Wall every day．每天有成千上万的人来参观长城。
4.基数词的常见用法
(1)时刻、年份的读法。如：
8：30→eight thirty2021→twenty twenty-one
(2)表示年龄：数字+year（s）+old。如：
ninety years old 90岁one year old 1岁
注意：“数字-year-old”也表示岁数，但只可做定语，后面须有名词。
(3)用整十基数词的复数表示年代或人的岁数。如：
in the sixties 在60年代in his eighties 在他80多岁时
(4)价格、公共汽车、房间号及电话号码的读法。
二、序数词
1.序数词的构成
(1)一般是在相应的基数词后加-th构成，如four→fourth，特殊变化的有：one→first，two→second，three→third，five→fifth，eight→eighth，nine→ninth，twelve→twelfth；
(2)20～90的整十序数词的构成方法是将基数词的词尾y变成i，再加-eth，如：twenty→twentieth；
(3)21～99的基数词变为序数词时（不包括整十），仅将个位数变为序数词即可，如twenty-one→twenty-first；
基数词变序数词口诀：基变序，有规律，词尾加上th； 一二三，特殊记，词尾字母tdd； 八去t，九去e，ve要用f替；整十把y变ie；若是遇到几十几，只变个位就可以。
2. 序数词的常见用法
(1)序数词前通常加the。如：the second picture 第二张图
(2)表示某人多少岁生日。如：his fifteenth birthday 他的15岁生日
(3)序数词前加a /an，表示“再……；又……”。如：try a third time 再试一次（已试过两次）
(4)日期的读法。如：the first of October 10月1日
(5)表示楼层：on the+序数词+floor。如：on the fifth floor 在5楼
4. 必背数词
数字 基数词 序数词 缩写
1 one first 1st
2 two second 2nd
3 three third 3rd
4 four fourth 4th
5 five fifth 5th
6 six sixth 6th
7 seven seventh 7th
数字 基数词 序数词 缩写
8 eight eighth 8th
9 nine ninth 9th
10 ten tenth 10th
11 eleven eleventh 11th
12 twelve twelfth 12th
13 thirteen thirteenth 13th
14 fourteen fourteenth 14th
15 fifteen fifteenth 15th
数字 基数词 序数词 缩写
18 eighteen eighteenth 18th
19 nineteen nineteenth 19th
20 twenty twentieth 20th
21 twenty-one twenty-first 21st
22 twenty-two twenty-second 22nd
23 twenty-three twenty-hird 23rd
30 thirty thirtieth 30th
40 forty fortieth 40th
数字 基数词 序数词 缩写
50 fifty fiftieth 50th
60 sixty sixtieth 60th
70 seventy seventieth 70th
80 eighty eightieth 80th
90 ninety ninetieth 90th
100 one hundred one hundredth 100th
1 000 one thousand one thousandth 1,000th
三、数字运算的表达
1. 加法：Add … and … / … plus …
Add 22 and 55 is 77.=22 plus 55 equals 77. 22加55等于77。
2. 减法：Subtract … from … / … minus …
Subtract 2 from 30 is 28.=30 minus 2 equals 28. 30减2等于28。
3. 乘法：Multiply … by … / … multiplied by …
Multiply 6 by 8 is 48. =6 multiplied by 8 equals 48. 6乘8等于48。
4. 除法：Divide … by … / … divided by …
Divide 12 by 4 is 3.=12 divided by 4 equals 3. 12除以4等于3。
课堂练习
一、用所给单词的适当形式填空
1.Tree-planting Day is on the ____________（twelve）of March every year.
2. Two ____________（three）of the students in our class are boys.
3. ____________（thousand）of volunteers tried to help the people who lost their homes in the earthquake.
twelfth
thirds
Thousands
4.Next Sunday is my grandpa' s ____________（ninety）birthday.
5. This story happened at the beginning of the _______________（twenty-one）century.
6. You can buy a TV set on the ____________（nine）floor of the shopping mall.
7. The World Volunteers' Day is on December the ____________（five）.
ninetieth
twenty-first
ninth
fifth
8. He tried a ____________（four）time, but without luck, he failed again. He just smiled and tried again.
9. In her ____________（thirty）, she had a second child.
10. My family have been to Beijing ____________（two）to climb the Great Wall.
fourth
thirties
twice
二、选择填空
( )1. —We should try to devote（献身于）ourselves to our country like Yuan Longping.
—I think so.He still worked on the research into agriculture（农业）at the age of ________. （2021鞍山）
A．eighties B．eightieth
C．eighty D．eighty-year-old
C
( )2. —China is a great country with a history of about five ________ years.
—Yes. And ________ of foreigners come to visit it every year. （2021滨州）
A. thousand; thousand B. thousands; thousands
C. thousand; thousands D. thousands; thousand
C
( )3. —How many students in your class get to school on foot？
—About ________ of them do. （2021朝阳）
A．three fifths B．two third
C．first four D．one seconds
A
( )4. On July 1st, we' ll celebrate the ________ birthday of the CPC.（2021株洲)
A. hundredth B. hundred
C. hundreds
A
( )5. My aunt has only one child, and she wants ________ child. （2021恩施州）
A.the second
B. a second
C. two
B
三、语法填空
Jennifer is a primary school student and she does well in studying, 1. ____________ (especial) in Maths. Last week，she got a good mark in the Maths exam again. Other students often check answers 2. ______ her. This afternoon, I 3. _________ (hear) she said on the phone that five plus eleven should be sixteen, eight divided 4. ______
especially
with
heard
by
two should be four, four multiplied by three should be
5. _________ (twelfth) and nine minus three should be six.
All of them were right in 6. ______ (do) these exercises. 7. ____________, there was a question that they didn' t know 8.______ to solve—what is two hundred multiplied by ten After asking 9. ____________ (they)
twelve
doing
However
how
their
teacher for help, they knew the answer was two thousand.In the future, they will meet even larger numbers so they should keep working hard together like this and 10. ____________ (enjoy) themselves.
enjoying
THANKS!