英语人教版八年级下册U7SA1a-2d.doc

U7 Section A 1 (1a 2d) ZhangYuqin教学目标：1语言目标：掌握本单元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: Whats the highest mountain in the world?Qomolangma.How long is Qomolangma?Its 8,844.43 meters high. Its 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. Its 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。Step 1 Presentation 1. New words: 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 2. Show some pictures and information of the highest mountain, the longest river, the biggest river, the biggest lake and the biggest desert in the world.Step 2 Warming up 1. 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. 2. Look these photos and practice the dialogue:e.g. A: How high is Qomolangma?B: Its 8,844.43 meters high.Step 3 1a Match the facts you know.Qomolangma about 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters highStep 4 Explanation8,844.43 meters high. 8,844.43米高 meters high (long, wide)米高（长,宽)。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 5 Practice in pairs using the information in 1a. 1. A: Which is the highest mountain in the world? B: Its Qomolangma. 2. A: How high is Qomolangma? B: Its 8,844.43 meters high.Step 6 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. Its 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 7 Practice 2c Make conversations in pairs. A: Did you know that China if one of the oldest countries in the world?B: Yes, I did. Its much older than my country.Step 8 2d 1. Read the conversation and answer the questions: 1) Which is the biggest man-made object in the world？ 2) Which is the most famous part of the Ming Great Wall?2. Role-play the conversation. Step 9 Language points and summary 1. China has the biggest population in the world. 中国是世界人口最多的国家。population意为“人口”时，是一个集合名词。它在句中作主语时，谓语动词通常用单数形式。其常用句型为“The population of +某地+ is + 数词”或“某地+ has a population of + 数词”，表示“某地有多少人口”。如：The population of my city is three million. 当表示人口“多”或“少”时，常用形容词large，big或small修饰population。如：The town has a large / big / small population. 当对人口数量进行提问时，要用疑问词what 或 how large。如： What / How large is the population of your country?完成句子，每空一词。(1) 这个国家人口少。The country _ _ _ _. (2) 我的家乡有100万人口。My hometown _ _ _ _ one million. (3) 北京有多少人口？_ _ _ _ _ Beijing? 2. Feel free to ask me anything on todays 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。feel 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。3. As far as I know, there are no other 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。1) 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, Jacks got twin sisters. 就我所知，杰克有一对孪生姐妹。 Theyre not coming today, so far as I know.他们今天不来了 就我所知是这样的。2) 句中man-made是一个合成形容词，意为“人造的”。像这样与-made复合而成的形容词不止一个。用以描述产品的生产或制造手段，特点等，常见的有：handmade手工制作的