unit7 What’s the highest mountain in the world?
Section A (1a-2b)
教材分析：本节课是人教版八年级下册unit7的第一课，课型为听说课，以听和说操练为主。在教山峰河流沙漠的单词时，农村学生比较生疏，所以先让他们查查资料，上课时会就会熟悉一些。对于短语as big as, much bigger教师用PPT图片呈现出来，学生学起来会轻松一些。对于听力部分，大多数的学生听力基础不好，太长的听力填空对他们来说很难完成，所以把它整合成4段，并每段只有一问一答，这样学生会更容易捕捉需要的信息。对于难点读大数字这一块，老师先让学生课前百度了解一下读的方法，在课堂上还安排了一个听力，一个小组互助活动，还有一个改错活动，让学生突破难点。
学情分析：学生之前有学过形容词的比较极和最高级，对比较极掌握得还可以，但是用最高级表达句子时最易犯以下错误：前面没有the， 忘了用in/of说明一个范围， 因此，围绕主题用表格展示这些出来，并让他们观察，归纳; 学生听力基础不好，老师把1b的听力材料整合并分为4段，并先让他们猜测，对于2b的听力，学生能听出数字就可以了。 Targets:
1.students are able to pronounce and use the following words：square, meter, deep, long, desert, mountain, salt lake. The Sahara，Qomalangma，The Caspian Sea, The Nile 2. students are able to read and understand the sentences： --What’s the highest mountain in the world? --How high/deep/big/long is the..? It is about…
3. students get familiar with the usage of the comparatives and superlatives of adjectives.
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4. Students are able to read big numbers.
Key point: Ss are able to use comparative words and superlative words to talk about the geography.
Difficult point: Ss are able to read the big numbers.
导学案：学生自找资料了解The Sahara， Qomalangma， The Caspian Sea,The Nile 并翻译：
一、1025 meters deep______________6670 kilometers long__________ 9,600,000 square kilometers____________ （参考书） 二、用英语读出以下数字：420 5600 （百度） 三、写出以下比较级和最高级。（参考八年级上册96页）
tall_______ ________ big_____ ________ long_______ ________
四、翻译：我比他高。---------------------------------
全班我最高。-------------------------------
设计意图：让学生了解主题的背景知识，学起来会熟悉一些同时检测学生对旧知识的掌握程度， 以便调整上课步骤。 教学环节：
一 、检查导学案，评价。 二、学习新课
1、 Warm-up Ss watch a video（Qomolangma, The Nile, The Caspian, The Sahara的视频剪辑合并）。T: Would you like to visit them?
2、Ss learn the target words by PPT pictures. (Qomolangma, The Nile, The Caspian, The Sahara的图片配上数字说明，并且有飞机逐渐飞向这些景点的动画效果)。
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T:what’s this? Ss: Qomolangma.
T: Is it a mountain or a river? S: a mountain.
T: How high is it? (T help the students say the number: it is 8,844.43 meters high) T: It is very high, it is the highest mountain in the world. (write the words Qomolangma mountain high on blackboard)
用这种方法呈现以下单词：The Sahara desert square kilometers The Caspian Sea deep The Nile.
设计意图：用三维重现教学法，先呈现目标单词和目标句，让学生先有印象。后面还会重复听，说，练，不急于一下子会读会记。符合学生的学习规律。 3.Ss match the facts they know.
Qomolangma The Sahara
About 9,600,000 square kilometers in size 1,025 meters deep
The Caspian Sea 6,671 kilometers long The Nile
8,844.43 meters high
设计意图：及时激活学生刚接触的新知识，并检测复习 in size deep long high. 4、listening.(教师结合原材料，自已录音整合得更简单,并分为四段) 听力整合分段如下：
1,A: What is the highest mountain in the world?
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B:Qomolangma is the highest mountain in the world, it is higher than any other mountain in the world.
2, A: What’s the biggest desert in the world? B: Sahara is the biggest desert in the world. 3,A: What’s the deepest salt lakes in the world?
B: The Caspian Sea is the deepest of all the salt lakes.. 4, A: What’s the longest river in the world? B: The Nile is the longest river in the world.
Pre-listening. Ss read the sentences and predict the worlds silently. 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.
设计意图：根据刚学新知识预测，让学生有目的去听，这样准确率高一些。 While listening
第一遍听，第二遍请同学回答，老师引导其它同学纠正或补充。 After listening
Ss practice the dialogues with partner by a table box on PPT and show their workout. Qomolangma The Sahara The Nile Caspian Sea
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The highest mountain In the world The biggest The longest The deepest In the world In the world Of all the salt lake
A: What is the… in /of …? B: …
Help Ss sum-up:
形容词最高级的后缀一般为：est,而且在句子表达中，前面有the, 表范围时用 in 或of.
设计意图：学生在说中观察，并让他们自己归类，他们会记得更清楚。 5, reading big numbers.
T: They are the number 1 in the world, but do you know how to read the number about them? Ss learn to read the numbers. Qomolangma The Sahara The Sea The Nile
8,844.43 meters high
Caspian
About 9,600,000 square kilometers in size 1,025 meters deep 6,671 kilometers long
T write the number in English on the board. All the students read together and sum-up: 把数组每隔三位分在一起，用逗号隔开，从右向左，第一个三位按hundred，第二个按thousand，第三个按million，递四个按billion读. （PPT屏幕显示） 6,Listen and fill in the numbers from the box. Pre-listening. Ss read the number in groups.
While –listening, Ss listen for the first time and number 1-4 in the order they hear them. For the second time, Ss fill in the blanks with the big numbers.
After listening, Ss learns the usage of much+形容词比较级and as… as… by pictures
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on PPT.
7, play a game. Ss work in group (5students one group), each one give out a large number, the others try to read out the numbers, they learn and help each other. 设计意图：学生通过小组合作，互相帮助一起攻破难点。
8，Production: they share their work out, and teacher chooses one number(让学生有表达欲望的数字) and ask them to say some sentences by using comparative or superlative words。（句子越多越好）
设计意图：没有设定句型，让学生自由发挥，这样的动态课堂有利于培养学生的创新能力，但也需要老师有一定的观察能力和应变能力。 9,课堂检测： 改错
1、 She is much tallest in her class. 2、 Lily has the longer hair in our class. 3、 Linda is as heavy than Ben.
4、 9600的读法是： nine hundred six thousand. 5、 The Nile is 6,671 kilometers deep. 6、 Qomalangma is 9,600,000 kilometers.
设计意图：初二生的好奇心强，而且喜欢找别人的毛病，让他们找错，会比较感兴趣且认真。另外教师可以检测他们对这节课的掌握程度，为下堂课的内容做好准备。
10，归纳总结, 老师指着板书内容和学生一问一答把对话操练一遍。 自我评价： 我能用数字表达地理自然 我能用比较级和最高级谈论地理自然 第6页 共10页
我能说和听出大数字 6,671 kilometers long …is the…in the world …is… than any other… in the world 5000 8844.43 设计意图：学生通过自我评价，了解自己学习情况，有利于把握复习方向。老师也可以很快地收到学生学习的反溃，给及时给予帮助辅导。
板书设计 ：
Qomalangma high mountain 8,844.43 meters
9,600,000 square kilometers The Sahara In size (biggest ) desert 1,025 meters The Caspian Sea deep (deepest) salt lake
The 6,671 kilometers Nile long (longest) river
9, 600, 000 nine million six hundred thousand
Million thousand hundred
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(highest)
1, 025 one thousand twenty-five A: What’s … in/of the…? B:…
A: How high/big/deep/long? B: It’s about…high/in size/deep/long.
Unit7 Section A(3a－3c) 教学设计
1教学目标 1. Knowledge aims:
(1) Expressions: achievement, southwestern, thick, include, freezing, condition, take in, succeed, challenge, in the face of, achieve, force, nature, even though(even if)
(2) Structure: The spirit of these climbers show us that we should never give up trying to achieve our dreams.
It also shows that humans can sometimes be stronger than the forces of nature. 3) Grammar: The comparisons with adjectives and adverbs 2. Ability aims:
(1) Get Students to learn to know facts about Qomolangma.
(2) Get Students to learn to use the comparisons with adjectives and adverbs. (3) Get students to learn how to scan the main idea.
(4) Get Students to know the spirits of the climbers and use them in their lives. 3. Moral Objectives: Never give up and humans can challenge themselves. 2学情分析
学生已在八年级上册接触过形容词和副词的比较级和最高级形式，所以已有一定的基础。本单元在八年级上的语言基础上加以拓展，进一步学习和使用形容词的最高级。 3重点难点
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Importances:
(1) Get Students to learn to know facts about Qomolangma.
(2) Get Students to learn to use the comparisons with adjectives and adverbs. (3) Get Students to learn how to scam the main idea. Difficulties:
1. It’s a bit difficult for Students to pronounce some names and words in the passage. It’s a bit difficult for Students to use reading skills while reading. 4教学过程 教学活动
活动1【导入】Warm－up Free talks:
1. What would you like to do during the coming holiday? 2.What is your hobby?
设计意图：一进入课堂利用跟学生的互动预热课堂，并且把话题引到接下去要讨论的favorite gift上。 Lead in
1. Show students the teacher’s favorite gift, meanwhile teach some new words. 2 Students are able to share their favorite gifts.
3.Students are able to discuss what are the gifts from the nature.
设计意图：利用favorite gift 这个话题引出the gifts from the nature。通过大自然的馈赠这样一个切入点引出下面的喜马拉雅山脉和珠穆朗玛峰，从而对文本的中心提升埋下一个伏笔。 活动2【讲授】Pre－reading
1.Show the title and the picture to the students and ask them tell what they can get from the title and describe the picture.
2. Students are asked to predict the main idea of the article according to the title and the picture. After talking, provide students with three choices and let them choose the right main idea for the article.
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设计意图：让学生利用文章的标题和图片来预测文章的主要内容，这也是一个阅读策略的渗透，长期坚持能够极大提高学生的阅读能力
活动3【讲授】While－reading
1.Fast reading: Read and match each paragraph with the main ideas.
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