Unit 7 Lesson 42 North America 课件(共27张PPT) 2023-2024学年冀教版英语八年级下册

(共27张PPT)
Unit 7
Lesson 42 North America
新课导入
How many main countries are there in North America
a map of North America
Three main countries:
Canada
The United States
Mexico
1.能熟悉并能正确运用本课时的重点单词和短语
2.能了解北美并能简单介绍北美主要的三个国家
预习检测
1.The Yellow River in China is　　　　 river in the world.
A.five longest　　　　　 B.the five longest
C.fifth longest D.the fifth longest
2.He is 　　　　than Li Ming.
A.much careful B.careful
C.much more careful D.much carefully
D
C
3.English is a______language around the world.
A.common B.large C.easy D.unusual
4.They______speak Putonghua when they are out.
A.main B.mainly C.major D.most
5.The population of China is larger than____of Japan.
A.one B.ones C.those D.that
A
B
D
知识梳理
to the south/north of... 在……（ 范围之外的）南部/北部
Hebei province is to the north of Hainan.
in the south/north of... 在……（ 范围之内的）南部/北部
Longnan is in the south of Gansu province.
on the south/north of... 与……接壤或相邻的南部/北部
Henan province is on the south of Hebei province.
1. 介词on，in，to表示方位的用法
根据ABCD的方位关系完成下列练习
A
B
C
D
N
1. C is ＿ the of A.
2. D is ＿ the of C.
3. B is ＿ the of A.
on east
to north
in south
2.Together, these three countries cover about 24 million square kilometres.
square kilometre 意思是“平方千米/平方公里”提问用“how big”
3.That is a large population, but smaller than that of china.
① 表示人口多与少，常用large 或 small 来修饰。
②句中的“that”用来替代上文中提到的 population, 在比较级或
含有比较意味的句子中，常用 that 来替代上文提到的名词。
例如：
The weather in Shenyang is colder than that in Beijing.
4. Canada is the biggest of the three countries in area.
the +最高级+of the three
Eg：Jim is the _____(good) student of the three boys.
in area 意为“在面积方面”，介词in表示“在……方面”。
类似的用法有：in size 意为“在大小方面”；in shape
意为“在形状方面”
Eg：Our town is five square kilometres in area.
其次，area 意为“面积；地域”，常用the area of 表示
“……的面积”，in the area of …意为“在……领域”。
Eg：What’s the area of your house
best
...the third most common language is Chinese.
“the +序数词+最高级+单数名词+范围”
表示“……是……的第几最……”。如：
1). the second largest island of China 意为“中国的第二大岛屿”
2). The Yellow river is the second________(long) river in China.
3). China has the first _______(large) population in the world.
longest
largest
5. The population in the U.S. is much larger than any other country
in North America.
“比较级+than+any other +单数名词” 意为
“比其他的任何一个…”= the +最高级+单数名词
Eg: The Nile is longer than any other river in the world.
= The Nile is the longest river in the world.
比较级+than any other +可数名词单数 (在同一个比较范围内）
意思是…..比其他任何一个……
比较级+than any +可数名词单数 (不在同一个范围内）
意思是…..比任何一个……
Shanghai is larger than any city in India.
THINK ABOUT IT
What do you know about North America
What do you know about other places around the world
Li Ming wrote a report about North America.
North America is a large continent, but it has only three main countries. Canada is the farthest north. To the south of Canada is the United States. The U.S.is north of Mexico. Together, these three countries cover about 24 million square kilometres.
About 550 million people live in North America. That is a large population，but smaller than that of China. The Great Lakes are the largest bodies of fresh water in the world. The Rocky Mountains are the biggest mountains in North America.
了解北美主要国家概况
Canada is the biggest of the three countries in area, but it has the smallest population—about 35 million. People speak many languages in Canada. Most speak English or French, but the third most common language is Chinese!
The U.S. is also a very large country, and its population is much larger than any other country in North America. It has a population of more than 315 million. The U.S. is often called America. People in the U.S. are called Americans. Most Americans speak English, and many speak Spanish. Of course, there are a lot of Chinese speakers in the U.S. , too—more than 2 million!
Mexico is smaller than both Canada and the U.S. Most of the people there speak Spanish. It has a population of more than 110 million. Mexican people love their country, but many leave to live and work in the U.S. The capital city of Mexico is Mexico City. It is a very big city.
This is map of North America.
1. Listen and answer the questions.
1). Which country has a large population, Canada or Mexico
2). What’s the third most common language in Canada
3). Which country has the largest population in North America
Mexico.
China.
The U.S.
2. Match the statements with the countries according to the lesson.
Countries
Statements
People mainly speak Spanish.
It’s the third largest country in area in North America.
Over 2 million people speak Chinese there.
It's the farthest north in North America.
It's the largest country in population in North America.
Canada
America
Mexico
3. Complete the passage with the correct forms of the words in the box.
large live square Spain speak common
There are three major countries in North America. They cover about 24 million ______ kilometres. Both in America and Canda, English is the ____________ language, while in Mexio, people speak mostly ______.
In the U.S.,over 2 million people ______ Chinese. The population of America is much______ than that of Canada. Some Mexican people leave their country to _____ and work in America.
square
most common
Spanish
speak
larger
live
PROJECT REPORT ABOUT CONTINENTS
Which continent of the world interests you Write a report about it.
Don’t forget the following things：
Name the continent’s main cities. What countries are these cities in
Name its main bodies of water.
Describe the continent's population.
Describe other important facts about the continent. Does it have any famous mountains Does it have any big lakes or deserts
Project
Read the lesson again and write true (T) or false (F)
1. Canada, the United states and Mexico are the only three main countries in North America. ( )
2. The population of China is larger than that of North America. ( )
3. The Great Lakes are the largest bodies of water in the world. ( )
4. The people in the U.S. speak English, and most Mexicans speak it as well. ( )
T
T
F
T
Read the lesson again and complete the table
North America
size
the number of countries
the largest lake
the biggest mountains
the biggest country
Languages spoken
24 million square kilometres
3 main countries
The Great Lakes
The Rocky Mountains
Canada
English, French, Chinese, Spanish
活动小结
Canada U.S. Mexico
area
population
language
the biggest of the three countries in area
about 35 million,
the smallest
the second biggest of the countries in area
smaller than both Canada and U.S.
more than 315 million,
the largest
more than 110 million,
the second largest
English,Franch, Chinese
English,SpanishChinese(more than 2 million)
Spanish
分析和总结下列被动句的使用场合
被动语态的适用场合和特殊结构
1. The book is written for teachers.
2. The shop is run by a young man.
3. It is generally considered not advisable to smoke here.
4. Liu Dehua appeared on the stage and was warmly
applauded by the audience.
不知道或没有必要说明动作的执行者是谁。
动作的承受者是谈话的中心(这时可带有by引起的短语)。
出于礼貌措辞等方面的考虑不愿说出动作的执行者是谁。
被动结构能使句子得到更好的安排。
观察下列主动句变被动句以后的结构
1.We can finish the work in a month.
→The work can be finished (by us) in a month.
2.The boss made them work for 16 hours a day.
→They were made to work for 16 hours a day (by the boss).
3.Tom bought me a new book.
→A new book was bought for me by Tom.
→I was bought a new book by Tom.
4. We must keep our classroom clean and tidy.
→Our classroom must be kept clean and tidy.
2. give sb sth
be made/let/had to do
4. see/hear/watch sb. do
be seen/heard/watched to do
5. see /hear/wacth sb. doing
be seen/heard/watched doing
3. make/let/have sb do
be given sth
be given to sb
1. can do sth
can be done
将下列主动结构变成被动结构
活动小结
一. 如果主动句中有情态动词, 则被动句中的结构是： 。
二. 如果主动句中有动词短语，则不可丢掉 。
三. 如果使役动词make,have及感官动词see,hear,watch,feel等后接省略to的
不定式作宾语补足语,则被动句中的不定式符号to 。
四. 如果主动句中含有双宾语,则有两种变化:
1. 当间接宾语变为主语时，直接宾语 ;
2. 当直接宾语变为主语时,间接宾语不变,但要在其前加 。
五. 如果主动句中有复合宾语,则将宾语变为 ,而把宾语补足语变为
。
情态动词+be+p.p.
短语末尾的介词或副词
要加上去
不变
介词for或to
主语
主语补足语
当堂检测
1. They clean their classroom every day.
2. I repair Jenny’s bicycle every Sunday.
3. This farmer grew beautiful flowers last year.
4. The students should do their homework every day.
5. Tom often plays basketball on the playground.
Their classroom is cleaned by them every day .
Jenny’s bicycle is repaired (by me) every Sunday.
Beautiful flowers were grown by this farmer last year.
Their homework should be done by the students evey day.
Basketball is often played by Tom on the playground.
一. 将下列句子变为被动语态
二. 用所给词的适当形式填空
1.The U.S.is often_______(call)America.
2.Football is so exciting that ________(million)of people in the world play it.
3. He left ________(fight) for his country.
4. India has a (多；大) population.
5. China covers about 9.6 million (平方千米).
called
to fight
millions
large
square kilometres
Unit 7
Lesson 42
被动语态的结构：
一. 一般结构：
be + done + by
二. 特殊结构：
1.主动句有情态动词:
情态动词+be+done
2.主句动词是make/see/
hear等:
be +done+ to do sth
3.主句有宾语补足语:
主语+be+done+主语
补足语
重点短语：
in area
to the south of
square kilometers
a map of
leave to do sth
fresh water