《North America》Know Our World PPT下载
第一部分内容：课前自主预习
单词闯关
1.million________
2.平方；广场；正方形________
Rocky Mountains ________
4.Spanish_______________________
5.Mexican____________________________
短语互译
1.square kilometer ____________
2.The Great Lakes ____________
3.any other ____________
4.超过 ____________
5.……的一半 ____________
句型在线
1.加拿大的南面是美国。
________ ________ _______ _____ Canada is the United States.
2．……并且它的人口要比北美其他任何国家多得多。
…and its population is______ _______ than ________ ________ ________ in North America.
3．中国的长江是世界第三长河。The Yangtze River (the Changjiang River) in China is _______ __________ river in the world.
课文初探
判断正(T)误(F)：
( )1. North America is a large continent with three main countries.
( )2. The United States is to the north of Canada.
( )3. Canada is the biggest of the three main countries in North America in area.
( )4. The population of the U．S. is much smaller than any other country in North America.
( )5. Most of the people in Mexico speak Spanish.
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North AmericaPPT，第二部分内容：句型透视
1To the south of Canada is the United States. 加拿大的南面是美国。
[探究]此句的主语是the United States, to the south of Canada作系动词is的表语，此句可转化为：The United States is to the south of Canada.其中to the south of 意为“在……的南方”，to要用在方位名词前面。
[拓展] in, on, to均可表示地理位置：in 指在某一范围内；on 指两者相接壤；to 指两者不接壤。例如：
D is to the north of A．D 在 A 以北。(不接壤)
C is on the north of A．C 在 A 的北边。(接壤)
B is in the north of A．B 在 A 的北部。(在内部)
2The Yangtze River (the Changjiang River) in China is the third-longest river in the world. 中国的长江是世界第三长河。
[探究] ““the ＋________＋_________＋名词”表示“第几……的……”，如表示“第一……”，则可以省略序数词first。例如：
The Yangtze River is the longest river in China. 长江是中国第一长河。
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