英語人教版八年級下冊unit 7 section B1a-1d導學案.docx

Unit7 Whats the highest mountain in the world?Period 4 Section B1a-1d學習目標: 學會表達事物之間的倍數(shù)關(guān)系。學習重點:1.會從高度，體重，長度，年齡等方面談?wù)?熊貓，并對熊貓和大像進行對比。2.熟練使用比較級和最高級 單詞: weigh，birth，adult, bamboo，. 詞組：at birth， up to,重點句型:1.Did you know that China is one of the oldest countries in the world?2.Baby pandas weigh about 0.1 to 0.2 kilos.3.A baby panda is around 15 cm long.4.An adult panda weighs many times more than a baby panda； 學習難點：學會使用比較級和最高級談?wù)撌挛?語法點:倍數(shù)的表達導入：(Show two pictures to the students. One is a picture of a panda and the other is an elephant.)T： Whats this? S1: Its a panda.T： Whatsthis?S2: Its an elephant.T ：Can you say something about the two animals with Comparative Forms of Adjectives and Adverbs? 學習過程：step1 熱身：用英語描述熊貓的特性 step2 呈現(xiàn)新知：Show a photo of a panda and a photo of an elephant on PPT and present:This elephant weighs many times more than this panda. Step3 1a. Compare facts about these two animals . Use the Language in the box to help you make sentences.1. Discuss in pairs. Compare the panda and the elephant.2. Make more sentences using the information in 1a. Eg:The elephant is twice taller than the panda.The elephant is 200 cm taller than the panda.3. Have students write down their sentences on the Bb. 4. 總結(jié)倍數(shù)的表達：A:“倍數(shù)+as+原級+as+”表示“前者是后者的多少倍” B:“倍數(shù)+比較級+than+”表示“前者比后者.多少倍” Step4: Listen and check the numbers you hear1.聽前:Read out the numbers as quickly as you can 2.聽中: Pay more attention to the numbers3.聽后: Ask a student to read out his/her answers Step5 : Listen again and complete the sentences in 1c. 1.聽前:Read the sentences and guess the weight.2.聽中: 寫每個單詞的首字母3.聽后: Check the answers and read the tape scripts of 1c after the tape together.Step6: PracticeShow some photos and information of animals on PPT, then have students compare facts about them.Step7. 課堂反饋與檢測： 根據(jù)漢語提示完成句子1.一只小狗可以活到 12 到 14 歲。A dog can live_ _12 to 14years. 2.他比其他人更仔細He is_ careful_the others 3.這只母象比小象重一百倍The mother elephant is_ _ heavier than the baby elephant. 4. 一只熊貓比它的幼崽多吃多倍。A panda eats_ _ _than it