英语人教版八年级下册unit3 lesson1.doc

课题Unit7 Whats the highest mountain in the world? Section A(1a1c)第_课时执笔人授课人班级学习目标1. Master the key words and expressions.2. Learn to talk about geography and nature.3. Be able to compare facts and figures.4. Develop ss listening and speaking skills.学习重点1. Master the key words and expressions.2. Learn to talk about geography and nature.学习难点1. Be able to compare facts and figures.2.Develop ss listening and speaking skills.自主学习1.写出下列单词的比较级和最高级1. high _ _ 2. deep _ _ 3. big _ _ 4. long 2.请根据预习写出下列短语1. 最高的山 2. 最长的河 3. 八百万平方公里 4. 1，025米深 5.最深的海_ 6、最大的沙漠_ 7. 8844.43米高_8.9600000平方米 9. 27190米宽_ 翻译 1）世界上最高的山峰是哪个？- 珠穆朗玛峰2）Jim比Peter高.3）Linda比Tom学习刻苦。合作探究Watch the photos and talk about them “How big/high/long/big is ? and help the students to answer: Its meters/kilometers/cm big/high/long/big. 1对于物体长、宽、高、深度 、面积的表达Eg. 20米长 20 meters long 10米宽 10 miters wide 15米深 15 meters deep 150平方米 150 square meters2.形容词和副词的比较级和最高级的用法 比较级表示 最高级表示 精讲点拨】1.long的名词形式是 length, 翻译成 ，你能猜到以下单词的汉语意思吗？height width depth Weight 表达东西的长度可以有两种方法：例如：这条河100米长。（1）The of the river is 100meters. （2）The river is 提问某物的长度可以用 How long is .? 回答用 Itsmeters long.同样也可以用How high( tall, deep, wide, big, heavy) is .?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.拓展延伸Divide ss into groups to make conversations using the information 1b.They can take the conversation in the box as an example.检测反馈【达标检测】（一）根据句意和首字母补全单词。1) The l _ river in Asia is the Yangtze River .2 )China is one of the oldest c _ in the world .3 )Our playground is about 2000 s _ meters in size4) Qomolangma is _ than any other mountain in the world. 5) The Sahara is _ desert in the world.6) The Caspian Sea is _ of all the salt lakes.7) The Nile is _ river in the world. （二）翻译