(
课件网) Unit 7 What’s the highest mountain in the world 人教新目标版 八年级下 SectionB 1a-1d公开课 Learning objectives 1.学习本课时新单词、短语及句型： 单词：weigh, birth, adult 短语：at birth, live up to 句型：An elephant is 350cm tall and weighs 5,000 kilos. An adult panda weighs many times more than a baby panda. 2.学会表达事物之间的倍数关系。 3.巩固用含有数字的事实描述事物，拓展学习更多表示比较的句式。 Warming-up It weighs about 5,000 kilos. (重5000千克) This elephant is 350 cm tall. (350厘米高) It eats 150 kilos of food a day. (一天吃150千克食物) It can help people do a lot of work. weigh v. 重量是……；称……的重量 weigh +基数词+单位 表示“重……” weight (n.)重量 in weight在体重方面 cm (=centimeter) n. 厘米 读作350 centimeters 基数词+单位词+形容词 Elephant Lead-in Lead in At birth, it is only about 0.1 to 0.2 kilos, but an adult one weighs 100 kilos. 出生时只有0.1到0.2公斤左右，但成年体重100公斤。 The panda is 150 cm tall when it is standing on two legs. (双腿站立时约150厘米高) It eats 10 kilos of food a day. (一天吃10千克食物) It is a symbol of our country. 是我国的象征。 Bamboo 竹子 birth n. 出生；诞生 at birth 出生时 adj. 成年的；成人的 n. 成人；成年动物 出生时=when it was born Panda Lead in Compare facts about these two animals. Presentation Can you compare the two animals height weight food This elephant is much taller than this panda. This panda is much shorter than the elephant. This elephant is 200cm taller than this panda. This panda is 200cm shorter than the elephant. 高得多 矮得多 高200cm 矮200cm height How tall is it 350 cm tall 150 cm tall This elephant weighs much more than this panda. This panda weighs much less than the elephant. This elephant weighs many times more than this panda. This panda weighs 4,900kilos less than the elephant. 重得多 轻得多 重许多倍 轻4，900千克 weight How much does it weigh =How heavy is it weighs 5,000 kilos weighs 100 kilos This elephant eats much more than this panda. This panda eats much less than the elephant. This elephant eats 140 kilos more than this panda. This panda eats many times less than the elephant. 吃得多 吃得少 多吃140千克 少吃许多倍 How much food do they eat eats 150 kilos of food a day eats 10 kilos of food a day food 1.表示 “A 比 B 长（宽、高、大、重等）N 倍”时，其结构为“A ＋ be ＋ 基数词（N＋1）＋times ＋ 形容词比较级 ＋ than ＋ B ”。 e.g. 这个大厅比我们的教室大四倍。 e.g. 他跑得比他弟弟快三倍。 This hall is five times bigger than our classroom. He runs three times faster than his brother. 注意：“两倍”可用twice表示。 拓展:倍数的表达方法 2.表示“A 的长度（宽度，高度，大小，重量等）是 B 的 N 倍”，可用 “A ＋ be ＋ 基数词（N）＋times ＋ as ＋ 形容词原级 ＋ as ＋ B”结构。 e.g. 这棵树是那棵树的三倍高。 e.g. 他父亲的年纪有他两倍大。 This tree is three times as tall as that one. His father is twice as old as he. 同义句：“A+谓语动词+倍数+the height / weight / length …+of + B ”表示“A的高度/重量/长度……是B的多少倍” ... ...
