Unit 10 Did you know? （课件）剑桥国际少儿英语二级上册

Unit 10 Did you know? 一、单元要点 1．知识概述 （1）掌握本单元出现的生单词、词组和句型。 （2）掌握形容词最高级的用法。 （3）初步了解过去时态。 2．单元重点词汇 world, tallest, metre, shortest, was, Britain, giraffe, land, animal, sailfish, travel, per, hour, Australia, mountain, the Mount Everest, river, the Nile, snowman, whale, ton, strongest, weakest, centimetres, difficult. 3．交际用语 （1）The Great Wall is the longest wall in the world. （2）—How tall are you? 　　 —I am one-hundred and forty-nine centimetres tall. （3）What can you easily do when you are very tall? （4）What can’t you easily do when you are very tall? （5）Which animal is bigger? （6）—Which animal is the biggest of the three? 　　 —The sheep is the biggest. 二、单元学习 1．Listen, number, point and read. （1）New words and expressions. （2）New sentences. ①The Great Wall is the longest wall in the world. ②The tallest man in China is 2.36 metres tall. ③The shortest woman in China was 79 cm tall when she was 19. 此句是be动词在一般过去时中的变化，规律为： am和is在一般过去时中变为was； are在一般过去时中变为were。 　　一般过去时意义：表示过去某个时间发生的事情或存在的状态，或过去经常发生的动作。过去式的形式由动词的过去式表示；动词be除第一，第三人称单数用was，其余都用were。 ④The fastest car is in Britain. It travels at 1,020 km per hour. ⑤The giraffe is the tallest land animal. It is 5.5metres tall. ⑥The fastest fish is the sailfish. It can travel at 100 km per hour.旗鱼 ⑦The fastest boat is in Australia. It travels at 556 km per hour. ⑧The fastest plane is in the USA. It travels at 3,530 km per hour. ⑨The biggest plants are trees. ⑩The highest mountain is the Mount Everest.埃佛勒斯峰 ⑾The longest river is the Nile. It is 6,673 km long. ⑿The tallest snowman was 22 metres. ⒀The biggest animal is the blue whale. It is 30 metres long and 150 tons. （3）Pronunciation. ① 字母C发[k]时，舌后部隆起，紧贴软腭，形成阻碍，然后突然放开，让口腔内气流冲出，爆破成音。发音时声带不振动。 e.g. cat　cut　cold　camp　country ②字母C发[S]时，舌端靠近齿龈，气流由舌端齿龈间送出，形成摩擦音。发音时声带不震动。 e.g. city　cell　celebrate　ceiling 2．Read and add. 3．Listen and chant. How tall are you? I am one hundred and forty-nine centimetres tall. 本句中“How tall are you?”是用来询问别人的身高。 centimetre意为“厘米”。 e.g. The boy is 1