人教新目标 (Go for it) 版八年级下册Section A精品课件ppt

Unit7 What’s the highest mountain in the world?

(SectionA1a-2c)导学案

【预习】

1. 预习单词及短语

1. 平方,正方形:_______(1)…平方公里/平方米 _______ (2) 天安门广场____________

2. 米 (cn):________   3. desert n. 沙漠____ 易混词 dessert [di'zə:t] (n.)甜点

4. deep (adj). 深的  比较级 _________最高级 _______(adv.) 深深地，强烈地 _______

5.( un.)人口(数量), (cn.)全体居民   ________    6. n. 旅行，观光 v. 旅行 ________

7. Asia(n.)亚洲( adj.) 亚洲人的，亚洲的亚洲______pl. _____一个亚洲国家 ___________

8.最高的山           ______________   9. 最深的盐湖    ________________

10. 最大的沙漠        _______________ 11.九百六十万平方公里                              

12..……的人口________________________                       

2. 试着用英语写下下列数字。

(1)9，600，000____________________________________________________

(2)6,671      ___________________________________________________

(3)8,844,43   ___________________________________________________                 

【合作探究】

一、学习任务：听说训练，在语言操练中掌握本节课单词句型。

Task 1听录音，完成1b。

Task 2 听第二遍录音，并跟读。

Task 3 练习对话。完成教材1c的任务。

Task4听录音，完成2a。

Task 5 朗读2b中的句子，再听一遍录音，完成2b。

Task6 再听一遍录音，并填空。

Mike: Hi, I’m Mike. I’m from the United States.

Boy: Welcome to our class, Mike. We’re happy to meet you.

Mike: Can you tell me a bit more about China?

Girl: Sure! Did you know that China is one of  ________countries in the world? It’s over 5000 years old.

Mike: Yes, I did. It’s much _____ than my country—in fact, the United States is one of  __________ countries in the world. It’s not even 300 years old.

Boy: And China has _________ population, too. It’s a lot _____ than the population of the United States.

Mike: But China is about the same size as the US, right?

Girl: Yes, and it’s the _________ country _______. We also have some famous rivers. The Yangtze River is __________ river in Asia.  It’s about 6300 kilometers long.

Mike: Wow! I didn’t know that. I thought the Yellow River was ________.

Boy: No, the Yellow River is 5464 kilometers long. But both rivers are very important to China.

Task7 用2a和2b中的信息，完成2c。小组展示。

二、知识点：

1.  the highest mountain in the world :世界最高峰

= higher than any other mountain. 比任何一座山都高:

(1)the +最高级+单数名词=any other +单数名词

eg H e is taller than any other boy in his class.= H e is the tallest boy in his class.

(2)the other+可数名词复数”或the others互换

(3)在同一个范围内进行比较:    用“than any other+可数名词单数”

不是在同一个范围内进行比较:则用“than any+可数名词单数”。

E.g Mr.Li is taller than any student in his class.李老师比他班上任何一个学生都高。

2.数字读法规则探究:

（1）十位和个位之间用“-”连接 。如twenty-one.

（2）百位和十位之间用_____连接，如：321__________________.

（3）从右往左数，三位一组，逗号隔开，依次是_______（千）______（百万）   _________（十亿）

3.用来问物体高度、长度、深度、宽度等常用句型有：

A.How high/tall/long/wide/deep…+ is +主语?    It’s + 数量 + high/tall/long/wide/deep.

① ----How high is the building?      --It’s about 100 meters tall.

② ----How tall is the bridge?         --More than 15 meters tall.

③ ----How long is the bridge?        --About 300 meters long.

④ ----How wide is the river?         --It’s about 1kilometer wide.

⑤ ----How deep is the well(水井)?    --It’s about 20 meters deep.

B.有部分形容词有名词形式，如：long—length,high---height,wide---width

 ① ----What’s the length of the bridge?  --It’s 200 meters

 ② The height of Mount Tai is 1,532 meters.

 ③ ----What’s the width of the river?    --About 120 meters.

4 China has the biggest population in the world..It is a lot bigger than the population of the US.

population  不可数名词，人口，人口数量

  ①“询问某地人口的多少”要用疑问词“what”，而不能用“how many”，“how much”。

What’s the population of China?

中国有多少人口？/中国的人口是多少？

② population指“人口总数”，作主语时，谓语动词要用单数形式。

The population of our city is about 3 million.

  我们城市的人口约有三百万。

③ population前有修饰词时,如分数，百分数表示整体的一部分人，谓语动词一般用复数。

Two thirds of the population of China are farmers.

中国有三分之二的人口是农民。

④ 指代population的代词要用that  The population of China is larger than that of America.

⑤ 表示人口多或少，要用large/big/great或small