《英语》（七年级下册）
Unit 1 Dream homes
Grammar
I. Teaching aims and learning objectives
By the end of the lesson, students should be able to:
1. learn about cardinal numbers and ordinal numbers;
2. use cardinal numbers to describe numbers, sizes, etc;
3. use ordinal numbers to describe dates, floors, etc.
II. Teaching contents
1. New words and phrases: zero, hundred, thousand, million, foot, square, metre, area, over, square metre, in size, have an area of
2. New structures: The CN Tower is 1,815 feet tall.
Women’s Day is on the eighth of March.
He is always the first to come to school in our class.
III. Focus of the lesson and predicted area of difficulty
1. To remember all the ordinal numbers.
2. To use the cardinal and ordinal numbers correctly.
IV. Teaching procedures
A Cardinal numbers
Step 1 Lead-in
T: Let’s play a number game in groups of four. Say the number 1, 2, 3… in turn. When someone meets 7, like 17, 27, or the times of 7, like 14, 21, he or she should spell it instead of saying the number.
【设计意图：学生对1-20的基数词比较熟悉，可通过游戏更加深刻的复习数字，同时提高他们学习的积极性和兴奋度。】
Step 2 Read the cardinal numbers
1. “zero” and numbers with “zeros”
T: What is a full moon like? What is your open mouth like? (zero)
T: Let’s learn about the words with zeros.
2. Read more difficult numbers and find out the rule
【设计意图：数字教学层层深入，由简入繁，教学扎实。】
Step 3 Study the words and practice
1. Watch some pictures and show the new words
T: The Eiffel Tower is over 1,050 feet tall. Also, we can say the Eiffel Tower is more than 300 metres tall.
T: Look! The Tian’anmen Square is so big. It has an area of about 440,000 square metres.
2. Read the sentences with new words and numbers
【设计意图：教完数字后，把数字融入到实际运用的句子当中，让英语学习更加贴近生活。】
B Ordinal numbers
Step 1 Learn about the ordinal numbers
1. Show when to use ordinal numbers
T: Among the six sentences, which is the most difficult one to read, the third or the sixth?
We use the ordinal numbers here. Do you know when to use ordinal numbers? We use ordinal numbers to order things and events. We use them to talk about dates, floors, positions, etc. Let’s learn more about it.
Read the sentences.
2. Learn, read and remember the ordinal numbers
T: Let’s learn all about the ordinal numbers.
3. Find out the rule of changing cardinal numbers into ordinal numbers.
4. Complete Exercise B2 and make up a new dialogue.
T: Can you make up a more difficult dialogue like this when you report?
【设计意图：学生自己总结基数词变序数词的规律，练习汇报从简单的句子变成对话，本环节教学的每一个步骤都在锻炼学生的自学能力、基础语言能力。在夯实基础的同时，更加注重学生学习的能力。】
Step 2 Development
1. The usage of cardinal numbers
T: Different usages, different reading. Look at these numbers. Do you know how to read them correctly?
T: We should say “two hundred” instead of ‘two hundreds’. We should say “thousands of” instead of “two thousand of”.
2. The usage of ordinal numbers
T: We use ordinal numbers to describe dates or orders.
T: In which condition can we use the ordinal numbers without “the”?
【设计意图：这一环节旨在让学生掌握更多有关数词的用法，夯实基础。】
Step 3 Practice
Have a PK.
T: We have learned a lot about the numbers. Now I’ll divide you into two groups. Let’s have a PK and see who is better at the numbers.
【设计意图：通过竞赛的方式，在检查学生的掌握情况的同时，活跃了课堂气氛。】
V. Homework
1. Remember the cardinal and ordinal numbers we learned in this lesson.
2. Preview the new words in the next lesson.
课件30张PPT。Unit 1 Dream homes GrammarA. Cardinal numbers (基数词)We use cardinal numbers to talk about the numbers of people or things.Play the gameRules
Say the number in turn. 1, 2, 3…
When someone meets 7,
like 17, 27, or the times of 7,
like 14, 21, he or she should
spell it instead of saying the number.What number is it like?It looks like a “zero”.Read the number100one hundred200two hundred1,000one thousand3,000three thousand1,000,000one million4,000,000four million1,000,000,000one billionRead the number21
30
40
50
60
70
80
90twenty-one
thirty
forty
fifty
sixty
seventy
eighty
ninety100
one hundred
1,000
one thousand
10,000
ten thousand
100,000
one hundred thousand
1,000,000
one million Read the number4,056
four thousand and fifty-six
23,813
twenty-three thousand eight hundred and thirteen567,110
five hundred and sixty-seven thousand one hundred and ten
6,425,200
six million four hundred and twenty-five thousand two hundredRead the number9 3 0 5 0 0 4 6 0 7,,,nine billion three hundred and five million four hundred thousand six hundred and sevenFind the rulemore thanThe Eiffel Tower is over 1,050 feet tall.foot 英尺300 metresStudy the wordsThe Tian’anmen Square has an area of about 440,000 square metres.平方米面积 Study the words1. People from about 180 countries and areas live in New York.
大约有来自180个国家和地区的人们生活在纽约。
2. The CN Tower is 1,815 feet tall.
加拿大国家电视塔有1,815 英尺高。
3. Red Square in Moscow is about 91,000 square metres in size.
莫斯科的红场面积大约91,000平方米。Read the sentences4. France has an area of over 260,000 square miles.
法国有260,000多平方英里的面积。
5. There are about 8,000,000 people living in London.
大约有8,000,000人生活在伦敦。
6. Tokyo, the capital of Japan, has over 13,000,000 people.
日本的首都东京有13,000,000多人口。Read the sentencesB. Ordinal numbers (序数词)We use ordinal numbers to order things and events. We use them to talk about dates, floors, positions, etc.Women’s Day is on the eighth of March.Our flat is on the seventh floor.He is always the first to come to school in our class.one
two
three
four
five
six
seven
eight
nine
tenfirst
second
third
fourth
fifth
sixth
seventh
eighth
ninth
tentheleven
twelve
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen
twentyeleventh
twelfth
thirteenth
fourteenth
fifteenth
sixteenth
seventeenth
eighteenth
nineteenth
twentiethRead the numbertwenty-one
thirty
forty
forty-four
eighty
ninety
ninety-nine
one hundredtwenty-first
thirtieth
fortieth
forty-fourth
eightieth
ninetieth
ninety-ninth
one hundredthRead the number基变序，很容易；
(first second third)(eighth ninth)(fifth twelfth)(twentieth thirtieth …) 1,2,3 特殊记;8去t, 9去e; ve 要用 f 替； ty 变成 tie.Find the rule1. Elsa lives on the ________ floor.
2. Ivan lives on the ________ floor.
3. Mary lives on the ______ floor.
4. Peter lives on the _______ floor.
5. Ricky lives on the _____ floor.
6. Wilson lives on the _______ floor.seventhfifteenthfourthsecondninthtwelfthComplete B2 on Page 12.A: Where does Elsa live?
B: She lives on the seventh floor.
A: She lives two floors below
Ricky.
B: Yes, and she lives three floors
above Mary.
Make up a dialogue1. 表示数量时与表示编号、号码时的读法不一样： Summarize the usage数字：87,300,005
读作：eighty-seven million three
hundred thousand and five
电话号码：82772906
读作：eight two seven seven two
nine zero six A. the usage of the cardinal numbers 2. hundred, thousand, million的两种情况：
我有两百本书。
I have two hundred books. (不可加s)
我有数百本书。
I have hundreds of books. (必须加s)Summarize the usageA. the usage of the cardinal numbers表日期：
on the fifth of June ( = on fifth June)
2. 表顺序或编号：
the second lesson ( = Lesson Two)Summarize the usageB. the usage of the ordinal numbers3. 序数词常与the连用，以下两种情况不用the：
(1) 作副词时，不可再用the。
He often comes first in the exams.
You must finish your homework first.
(2) 前面有限定词时，不可再用the。
It’s my second time to watch the lion dance. Summarize the usageB. the usage of the ordinal numbers1. The Olympic Games began in the _____ (四) century B.C.
2. Bill is _______ (二十) minutes late for the Maths class.
3. The Browns live at No. _________ (六十五), Pond Street.
4. The number of the computers in the shop
is ____ (五十).
5. The football season begins on the
__________ (二十一) of September.fourthtwentySixty-fiveHave a PKfiftytwenty-first(1 point each)Summer is _____ season of the year.
A. two B. second
C. the two D. the secondCan you tell me the English for _____ month?
A. twelfth B. the twelfth
C. twelve D. the twelvethHave a PK(2 points each)3. I think there’re _____ people in the park today.
A. three thousand of B. three thousands of
C. thousands of D. thousand of4. The _____ lesson is the most difficult of the _____ lessons.
A. ninth; forty B. nine; forty
C. ninth; fortieth D. nine; fortiethHave a PK(2 points each)5. Next Saturday is my _____ birthday. I am going to have a party at home.
A. the fourteenth B. fourteen
C. fourteenth D. the fourteenRemember the cardinal and ordinal numbers we learned in this lesson.
Preview the new words in the next lesson.Homework
