人教精通版英语四年级下册Lesson7优质课件 31页

Unit 2 There are forty students in our class. Lesson 7 精通·四年级下册 Lead-in 十一 New words 十二 二十一 二十二 二十三 二十四 二十五 二十六 二十七 二十八 二十九 New words Just talk Good afternoon, boys and girls! This is Mr Gao, our new PE teacher. Good afternoon, Mr Gao! How many students are there in your class? Twenty-nine. Let’s count from 1 to 29! One, two, three… …twenty-eight, twenty-nine. 1. How many students are there in your class? 你们班有多少名学生？ “How many+可数名词复数+are there+其他？” 用于询问数量。 回答用“There is/are+基数词.”或者直接用基数词。 Language points 2. Let’s count from 1 to 29.让我们从一数到二十九报数。 “Let’s do +某事.”，这是祈使句，表示让我们做某事。 例：让我们去打篮球吧！ Let’s play basketball. from… to… 从……到…… 例：从家到学校 from home to school 从10到100 from 10 to 100 Just read and write 21 22 23 24 25 26 27 28 29 How many students are there in your class? Twenty-nine. twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine How many students are there in your class? There are twenty-eight. Ask and answer How many students are there in your class? There are twenty-seven. 基数词 英语中，描述事物数量多少的数词称为基数词。 1. 1到10: one, two, three, four, five, six, seven, eight, nine, ten. 2. 11到19: eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen. 这 里除 eleven, twelve, thirteen, fifteen, eighteen 为特殊形式外，fourteen, sixteen, seventeen, nineteen都是由其个位数形式后添加后缀- teen构成。 3. 从 20到99 ：整数几十中除twenty, thirty, forty, fifty, eighty为特殊形式外，sixty, seventy, ninety都是其 个位数形式后添加后缀-ty构成。表示几十几时， 在几十和个位基数词之间添加连字符“-”， 例 如：21 twenty-one。 4. 百位数：个数基数词形式加“hundred”，表示几百， 在几十几与百位间加上and，表示几百几十。 Can you write them? Let’s play 29 26 25 23 28 24 27 Find your neighbours. 26 28 27 Twenty-six. Twenty-seven. Twenty-eight. We are neighbours. 23 25 24 Twenty-three. Twenty-four. Twenty-five. We are neighbours. Play roles