(共21张PPT)
Section A (1a-1c)
Unit 7 What's the highest mountain in the world
Learning Goals
By the end of the class ,students will be able to
1.learn about some geograpical facts.
2.describe the features of some famous places by using numbers
3.use the comparative and the superlative to compare things.
_____________ is the highest
mountain in the world.
Qomolangma
['t m lɑ: m ]
the Nile
the Caspian Sea
the Sahara
[s 'hɑ:r ]
['k spi n]
[na l]
The longest river in the world is _________.
The deepest salt lake in the world is _____________.
The biggest desert in the world is __________.
n. 沙漠
How high is Qomolangma
How long is the Nile
How deep is the Caspian Sea
How big is the Sahara
Do you know
Pre-listening
Match the facts you know.
1a
Qomolangma About 9,600,000 square kilometers in size
The Sahara 1,025 meters deep
The Caspian Sea 6,671 kilometers long
The Nile 8,848.86 meters high
How to read these large numbers
9,600,000
1,025
6,671
8,848.86
nine million six hundred thousand
one thousand and twenty-five
six thousand six hundred and seventy-one
eight thousand eight hundred and forty-eight point eight six
读数有个小窍门，
自右向左三逗分，
一逗千是（thousand），二逗百万是（million），
三逗十亿是（billion），
左右三位分开读，
百位十位and连。
Speak out the facts .
The Sahara is about 9,600,000 square kilometers in size.
The Caspian Sea is 1,025 meters deep.
The Nile is 6,671 kilometers long.
Qomolangma is 8,848.86 meters high.
地名+is +基数词+数量单位+adj(deep/long/high/wide)/in size.
Read the sentences and predict.
1b
Qomolangma is _____________ than any other mountain in the world.
The Sahara is _____________ desert in the world.
The Caspian Sea is _______________ of all the salt lakes.
The Nile is _________________ river in the world.
Predicting
(than 形容词比较级标志词。)
（2.3.4句比较范围很大，考虑最高级，be动词后应该用形容词，故如果填最高级，形容词最高级前面的the不能省略。）
)
Listen and complete the sentences.
1b
Qomolangma is _____________ than any other mountain in the world.
The Sahara is _____________ desert in the world.
The Caspian Sea is _______________ of all the salt lakes.
The Nile is _________________ river in the world.
higher
the biggest
the deepest
the longest
While-listening
=Qomolangma is the highest mountain in the world.
Listen and read.
Teacher: Yesterday, we learned some important geographical facts. I hope you all still remember them. I'm going to test you now by asking a few questions. First, what's the highest mountain in the world
Boy 1: Qomolangma! It's higher than any other mountain in the world.
Teacher: That's right. And who can tell me what the Sahara is
Girl 1: The Sahara is the biggest desert in the world.
Teacher: Very good. And which is the deepest salt lake in the world
地理事实
Girl 2: The Caspian Sea is the deepest of all the salt lakes.
Teacher: You're all so smart! Now, for the last question, which is the
longest river in the world
Boy 2: I know! The Nile is the longest river in the world.
Boy 1: And the Amazon is the second longest river in the world.
Teacher: It seems that you know the answers to all my questions. Good job!
the+序数词+形容词最高级 第几……的
Let's watch a video !
Post-listening
Use the information in 1b to make conversations.
1c
Qomolangma.
What is the highest mountain in the world
How high is it
It is 8,848.86 meters high.
Language points
1. 长、宽、高、深、面积的表达方法
The river is 10 meters wide. = The river is 10 meters in width.
基数词 + 单位词 + 形容词（long, wide, high, deep等）
基数词 + 单位词 + in + 名词（length, width, height, depth, size等）
拓展：长宽高深等还可以用复合形容词，即数词-量词（单数形式）-long/wide/---做前置定语。
a 20-meter-deep river
2. Qomolangma is higher than any other mountain in the world.
该结构意为“比其他任何一个……都……”，指同一范围内比较，表示最高级含义。
Tom is taller than any other student in his class. = Tom is the tallest in his class.
other必不可少，用以将主语从比较对象中排除，避免逻辑矛盾。
比较级 + than any other + 可数名词单数
Exercises
I.汉译英。
1.这张桌子两米长，一米宽。
2.这座山有5000米高。
The table is two meters long and one meter wide.
The mountain is 5,000 meters high.
3.这个湖有多深？ 1025米深。
How deep is the lake It’s 1,025 meters deep.
A: How high is Qomolangma
B: It’s 8,848.86 meters high.
A: How deep is the Caspian Sea
B: It’s 1,025 meters deep.
A: How long is the Nile
B: It’s 6,671 kilometers long.
A: How big is the Sahara
B: It’s about 9,600,000 square kilometers in size.
Summary
Homework
Preview 2a-2d.
Recite key sentences.
Do the exercises in students’ book.
Thank you!
