课件38张PPT。Unit 7
North AmericaLesson 42 冀教版英语八年级下册Think about it!? What do you know about North
America?
? What do you know about other
places around the world?你所知道的北美？美洲以巴拿马运河为界，分为北美，南美巴拿马运河一个人，一项计划，一条运河：巴拿马 A man a plan a canal Panama 你所知道的北美？America 黄石国家公园世界上最早的国家公园 索萨利托小镇 自由女神像公园内的大棱镜温泉(The Grand Prismatic Spring，又称大虹彩温泉），是美国最大，世界第三大的温泉。大稜镜温泉的美在于湖面的颜色随季节而改变，春季，湖面从绿色变为灿烂的橙红色，这是由于富含矿物质的水体中生活着的藻类和含色素的细菌等微生物， 它们体内的叶绿素和类胡萝卜素的比例会随季节变换而改变，于是水体也就呈现出不同的色彩。在夏季，叶绿素含量相对较低，显现橙色、红色，或黄色。但到了冬季，由于缺乏光照，这些微生物就会产生更多的叶绿素来抑制类胡萝卜素的颜色，于是就看到水体呈现深绿色 黄石峡谷 自由女神像（Statue Of Liberty），
又称自由照耀世界（Liberty Enlightening The World），是法国在1876年赠送给美国的独立100周年礼物。美国的自由女神像位于美国纽约州纽约市哈德逊河口附近，女神右手高举象征自由的火炬，左手捧着刻有1776年7月4日的《独立宣言》，脚下是打碎的手铐、脚镣和锁链。她象征着自由、挣脱暴政的约束 Canada枫叶之国 世界上领土面积第二大的国家
枫树是加拿大的国树，也是加拿大民族的象征。 加拿大北极光 北极光是出现于星球北极的高磁纬地区上空的一种绚丽多彩的发光现象。而地球的极光，由来自地球磁层或太阳的高能带电粒子流（太阳风）使高层大气分子或原子激发（或电离）而产生。北极附近的阿拉斯加、北加拿大是观赏北极光的最佳地点 尼亚加拉瀑布位于加拿大安大略省和美国纽约州的交界处，是北美东北部尼亚加拉河上的大瀑布，也是美洲大陆最著名的奇景之一。平均流量5,720立方米/秒，与伊瓜苏瀑布、维多利亚瀑布并称为世界三大跨国瀑布。尼亚加拉瀑布一直吸引人们到此度蜜月、走钢索横越瀑布或者坐木桶漂游瀑布尼亚加拉瀑布实际由三部分组成：美国瀑布（American Falls）、新娘面纱瀑布（Veil of the Bride Falls）及马蹄瀑布（Horseshoe Falls）。事实上，在美国境内看到的只是尼亚加拉瀑布的侧面，而在加拿大可以一览全貌 全球最高通讯塔:多伦多cn塔 渥太华（Ottawa）加拿大首都
国会大厦多伦多（Toronto）是加拿大最大城市，安大略省的省会，全国工业和商业中心。 墨西哥美食墨西哥美食被誉为世界名菜，与法国菜和中国菜并驾齐驱。这得宜于她多样的地理环境带来的丰富物产：中部墨西哥湾的丰富海产、南部热带雨林的各色蔬果、还有北方山区的健壮牛羊，配搭多种特色酱汁，使墨西哥菜成为最另人垂涎的美食之一。玉米饼烤鸡蓝洞洪都拉斯 地球之眼现今的洪都拉斯蓝洞是一个闻名遐迩的潜水胜地
蓝洞所在位置也曾是一个巨大岩洞，多孔疏松的石灰质穹顶因重力及地震等原因而很巧合地坍塌出一个近乎完美的圆形开口，成为敞开的竖井。当冰雪消融、海平面升高后，海水便倒灌入竖井，形成海中嵌湖的奇特蓝洞现象。[1] Words & expressionsListen and read. 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 NorthAmerica. 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.
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.Language pointsTo the south of Canada is the United States.
在加拿大南部是美国。
to the south/north of意思是“在……(范围之外)的南部/北部”。例如：
Hebei province is to the north of Hainan Province.河北省在海南省的北部。（河北省在海南省的范 围之外）
in the south/north of意思是“在……(范围之内)的南部/北部”。例如：
Mexico is in the south of North America.
墨西哥在 北美洲南部。（墨西哥在北美洲的范围之内）Mexico is to the south of the U.S.
墨西哥在美国的南部。（墨西哥在美国的范围之外）
on the south/north of意思是“与……相邻或接壤的南部/北部”。例如：
Henan Province is on the south of Hebei Province.
河南省位于河北省的南部。（河南省和河北省接壤）2. Together, these three countries cover
about 24 million square kilometres.
这三个国家总共覆盖了二千四百万平
方公里。
square kilometres意思是“平方千米/公里”。
square metre 平方米3. That is a large population, but smaller
than that of China.
这是很大的人口数，但比中国的人口要少。 表不人口多或少，常用large或small来修饰。
句中的“that”用来替代上文提到的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. 沈阳的天气比北京冷。 Listen and answer the questions.Let’s Do It!1Which country has a larger population，Canada or Mexico?
What’s the third most common language in Canada?
3. Which country has the largest population in North America?
Mexico.Chinese.The U.S. Match the statements with the countries according to the lesson.2StatementsCountries Complete the passage with the correct forms of the words in the box.2 There are three major countries in North America. They cover about 24 million _______ kilometres. Both in America and Canada, English is the _____________ language, while in Mexico, 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.large live square Spain speak commonsquaremost common Spanish speak largerlive Exercise1. — Do?you?often?clean?your?classroom???????
— Yes.?Our?classroom?___?every?day.??
A. clean B. cleans?
C. is?cleaned? D. is?cleaning??
2. A?talk?on?developments?in?science?and?
technology ___ in?the?school?hall?next?week.?
? A.?given? B. will?be?given?
C. has?been?given? D. give?单项选择。CB3. His?new?book ___?next?month.?
A.?will?be?published????B.?is?publishing??
C.?is?being?published???D.?has?been?published?
4. — Did?you?go?to?Jack’s?birthday?party???
— No, I ____.??
A.?am?not?invited? B. wasn’t?invited?
C. haven’t?invited? D. didn’t?invite???AB5. — Mum, can?I?go?to?the?zoo?with?Jack???
— When?your?homework ___, you?can.?
? A. is?done? B. was?done?
C. does? D. did???
6.Mary?___show?me?her?new?dictionary.????? A. has?asked?to? B. was?asked?to
? C. is?asked? D. asks?toAB?7.?All?the?preparation?for?the?task?____,?and?
we’re?ready?to?start.????
?A.?completed??????????????????????B.?complete????
?C.?had?been?completed??????D.?have?been?done?
8.?----?How?long?____?at?this?job??????
----?Since?1990.??
???A.?were?you?employed??????
B.?have?you?been?employed????
? C.?had?you?been?employed????????????
?D.?will?you?be?employed?DBHomeworkWhich 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?Thanks!
