英语人教版八年级下册Unit7 Period One.doc

Teaching Key Aims:1. Ss should master some key phrases and key words.2. Ss should master some listening skills to help them listen easily.3. Review the comparatives and superlatives with adjectives and adverbs.4. Help Ss review the numbers, and Ss could say the large numbers.5. Ss could talk about and say geography in this part.Teaching Difficulties:1. Ss could freely say the large numbers by themselves.2. Ss can freely use the comparatives and superlatives to express their ideas.3. Ss can freely use the key points of this part to say the geography and the natureTeaching key words:square meter deep desert hundred thousand Caspian Sahara Qomolangma Teaching Aids: PPTTeaching procedures:T shows the Teaching Key Points of this lesson.教学目标：1、 掌握本节课中出现的重点单词与词汇。2、 掌握一些听力技巧来帮助自己更好的听听力。3、 复习回顾形容词、副词的比较级和最高级。4、 复习数字，并会说位数大的数字。5、 学会讨论和说本节课的地理知识。Step1: RevisionT shows some numbers on the blackboard and Ss say the numbers by themselves.23, 56, 89, 105, 140, 177, 289, 532, 1,031, 1,414, 2,854,600,000, 7,458,671, 8,840,745,003,Lead in:What do you know about these numbers?1,025-The Caspian Sea (picture)6,671-The Nile (picture)8,844.43-Qomolangma (picture)9,600,000-The Sahara (picture)T leads the Ss to say out the names of these four places.Step2: PresentationT shows the different geography (mountain, river, salt lake and desert) by using the adjectives (high, long, deep and big) to Ss.T uses more pictures to show the details of these four.Qomolangma is 8,844.43meters high. It is higher than any other mountain in the world.The Nile is 6,671 kilometers long. It is the longest river in the world.The Caspian Sea is 1,025 meters deep. It is the deepest of all the salt lakes.The Sahara is about9, 600,000 square kilometers in size. It is the biggest desert in the world.T gives Ss 2 minis to recite these key sentences.Pair work: (T gives Ss 3 minis to practice.)B- Qomolangma is 8,844.43meters high. It is higher than any other mountain in the world. . (Ss practice the conversation with their partner in groups.)T checks the pair works.T and Ss look at 1a.(T asks Ss to read every place and the descriptions)Step3: Listening PracticeT and Ss look at 1b.T asks Ss to look at every Qs by asking Ss to read.T asks Ss to guess the answers of 1b.T plays the tapes for Ss and checks the answers.Step4: ProductionT and Ss look at the 1c.Group work: (T gives Ss 3minis to practice the conversation in two or four.)A Whats the in the world、B T checks the group work.Step5: exercise1. numbers 2. comparatives and superlati