人教版八年级下册 Unit 7 What's the highest mountain in the world？ Section A 1a-2d 教案

Unit 7 What’s the highest mountain in the world
Period 1 Section A 1 1a – 2d
教学目标：
1语言目标：掌握本课重点词汇及能用比较级和最高级谈论各之最。
2 技能目标：能听懂和谈论有关地理和自然的话题。
3 情感目标：培养学生热爱大自然，保护环境的意识。
教学重点：
短语: in size, in the world, 2 meters tall/long/wide, the biggest population, one of the biggest, the most popular question, talk about, the ancient emperors, the main reason, as far as I know, no man-made objects,
句子:
What’s the highest mountain in the world
Qomolangma.
How long is Qomolangma
It’s 8,844.43 meters high. It’s higher than any other mountain.
Which is the deepest salt lake in the world
The Caspian Sea is the deepest of all the salt lake.
Did you know that China is one of the oldest countries in the world
Yes, I did. It’s much older than the US.
教学难点：形容词和副词的比较级和最高级变化规则和用法。
物体之间的对比。
教学过程：
Step 1 Greeting students as usual
Step 2 Free talk
Say,Last week we have learned to tell a story in Unit 6. Have some students to tell a story in English.Ask :Which story do you like best
Step 3 Brainstorm
Review the comparatives and the superlatives. Say the numbers in English.
Step 4 Presentation
square n. 平方 meter n. 米 deep adj. 深的
desert n. 沙漠 population n. 人口 population n. 人口
Asia n. 亚洲 tour v. n. 旅行 tourist n. 旅行者
wall n. 墙 amazing adj. 令人大为惊奇的
ancient adj. 古代的 wide adj. 宽的；宽阔和
Step 5 Warming up
1. Watch the photos and introduce the four places,then talk about them “How big/high/long/big is … ’ and help the students to answer: It’s …meters/kilometers/cm big/high/long/big.
2. Look these photos and practice the dialogue:
e.g. A:What’s the highest mountain in the world
B:Qomolangma
A: How high is Qomolangma
B: It’s 8,844 meters high.
Step 6 1a Match the facts you know.
Practice in pairs using the information in 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 8,844.43 meters high
Step 7 Explanation
…8,844 meters high. 8,844米高
… meters high (long, wide…)
……米高（长,宽……)。
英语表示“有多长（宽，高……）”时，一般将数词和数量单位放在表示长宽高的形容词前作状语。
e.g. The wall is 1.7 metres wide.
Step 8 Listening
1. 1b Listen and complete the sentences.
1) Qomolangma is ______ than any other mountain in the world.
2) The Sahara is ____________ desert in the world.
3) The Caspian Sea is ____________ of all the salt lakes.
4) The Nile is _________ river in the world.
2. 2a Listen and number the facts(1- 4) in the order you hear them.
2b Listen again and fill in the blanks in 2a with the numbers in the box.
6,300 5,000 5,464 300
___ The Yangtze River is about ____ kilometers long and the Yellow River is ___ kilometers long.
___ China has the biggest population in the world. It’s a lot bigger than the population of the US.
___ China is over ___ years old. It has a much longer history than the US. The US is not even ___ years old.
___ China is almost as big as the US, but it is the biggest country in Asia.
Step 9 Practice
1c Make conversations in pairs.
Examples
A: Did you know that China if one of the oldest countries in the world
B: Yes, I did. It’s much older than my country.
Step 10 2d Read the conversation and answer the questions:
1) Which is the biggest man-made objects in the world？
2) Which is the most famous part of the Ming Great Wall
Step 11 Language points
1. Feel free to ask me anything on today’s Great Wall tour.
在今天的长城游中，大家尽管问我任何问题，不要拘束。
fell free是英语口语中一个常用表达。若有人让你feel free to do something, 就是让你无需拘束，只管按照自己的意愿去做某事。
e.g. A: Can I use your bathroom 我可以用一下你的卫生间吗？
B: Yes, feel free. 可以，请随意。
2. As far as I know, there are no man-made objects as big as this.
据我所知，再没有像它这样大的人造物体了。
as far as I know是一个固定的表达方式，还可以说so far as I know, 意思是“据我所知”。
e.g. As far as I know, Jack’s got twin sisters.
就我所知，杰克有一对孪生姐妹。
They’re not coming today, so far as I know.
他们今天不来了– 就我所知是这样的。
Step 12 Summary
This class we’ve learned to talk about geography and nature.Review the usage of the comparatives and the superlatives.We can say the numbers in English correctly.
Step 13 Teaching reflection
本课采用了复习导入法，通过free talk ,brainstorm复习上一单元内容以及为本课的学习做铺垫，但在操作过程中，发现有相当一部分学生对比较级和最高级的变化规则不熟练，有待强化。本课生词较多因此在课前提前预习，效果较好。在这节课中，我采用了“任务型”的教学途径，先热身复习了前面学过的单词、短语及句型。我给出了不同的图片供学生选择，同时提供了基本句型：
A:What’s the highest /the longest /the deepest /the biggest ... in the world A:How high /long/deep/big is ...
因为任务明确，学生有了明确的目标，他们的积极性很高，利用前面复习过的内容，他们很快就会做对话，参与踊跃，效果显著。
不足之处：这节课，内容安排较多，未完成2b Role play部分，练习题做的有点仓促。应多增加一些拓展练习。这样学生在对话练习时，更能自由发挥，而不是拘泥于老师给的图片上的内容。