Unit7 What’sthehighestmountainintheworld?
Period3 SectionAGrammarFocus—4c
【课型】语法课
学习目标
1.能掌握下列单词:ocean,the Pacific Ocean
2.能正确使用以下常用表达:
how high,longer than,the deepest salt lake,as popular as,the Yangtze River
3.能熟练掌握并使用下列重点句式:
1)—How high is Qomolangma?
—It’s 8,844.43 meters high.
2)—Did you know that China is one of the oldest countries in the world?
—Yes,I did.It’s much older than the US.
3)—Which is the deepest salt lake in the world?
—The Caspian Sea.
学习过程
【课前预习】
用括号内所给单词的适当形式填空。
1.Bob is (young) than Fred but (tall)than Kimi.
2.Miss Chen is (popular) than Mr.Wang.
3.I think apples are as (delicious) as bananas.
4.In the test,I did even (bad).
5.A dictionary is much (expensive) than a story book.
6.Playing computer games is (interesting) of all.
【课堂探究】
探究:形容词比较级和最高级的用法总结
(1)形容词比较级的句型结构
①形容词的 +than+比较对象。表示一个范围内两事物的比较用“比较级+than+ +单数名词”。
He is taller than any other student in his class.他比他班上任何一个学生的个子都高。
②as...as...意为“ ”,其否定形式为“not so/as...as...”,意为“不及;不与……一样……”。注意as与as之间要用形容词或副词的 级。
③“the+比较级...,the+比较级...表示“ ”。
The more you read,the more you know.你书读得越多,你知道得就越多。
④“比较级+and+比较级”表示“ ”。
Our city is more and more beautiful.
我们的城市越来越漂亮了。
⑤修饰比较级可用 等。
⑥在选择疑问句中,常用句型:
Which/When/Who+be+形容词比较级,A or B?
(2)形容词最高级的句型结构
①“主语+be+the+形容词 +in/of+范围”表示“在某范围内最……”。
②“ +the+形容词最高级+可数名词复数”表示“最……的……之一”。
③“the+ (除了first)+形容词最高级+可数名词单数”表示“第几(大,长等)……”。
The Yellow River is the second longest river in China.
