Unit7课件2概要.ppt

Numbers Presentation ten eleven twelve thirteen fourteen four + teen → 16 sixteen 17 seventeen 19 nineteen fifteen eighteen twenty twen + ty → thirty thir + ty → 40 forty 50 fifty 60 sixty twenty-one thirty-two sixty-seven 1. 基数词的表达 1) one到twelve，拼写和读音无规律可言，只能逐一记忆。 2) thirteen到nineteen，表示“十几”，在个位数后加后缀-teen，其中要注意thirteen， fifteen和eighteen的拼写。 3) twenty到ninety，表示“几十”，以ty结尾，但需注意twenty, thirty, forty, fifty, eighty的拼写。 4) 21~29 直到91~99，表示“几十几”，用整十位数加个位表示，中间用连字符“-” 把十位和个位连接起来。 5) one hundred 意为 “一百”，也可说a hundred，hundred可加具体数字，如nine hundred (900)。 2. 基数词的用法： 基数词只能修饰可数名词，要注意数词和名词在数上要保持一致。如： one student 一名学生 two boys 两名男孩 twenty apples 二十个苹果 thirty-three eggs 三十三个鸡蛋 基数词，不难记，找出规律很容易： 零至十二形各异，一个一个单独记。 如果表示是“十几”，后面要加-teen。 Thirteen，fifteen形异需留意，eighteen只有一个t。 表示“几十”要加-ty，twenty，thirty是特例。 表示数字“几十几”，连字符号别忘记。 1a Listen and repeat. 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Write the numbers in 1a next to the correct word. Which rows of numbers are in the wrong places? 1b ten __ eleven __ twelve __ thirteen __ fourteen __ twenty-five __ twenty-six __ twenty-seven __ twenty-eight __ twenty-nine __ twenty __ twenty-one __ twenty-two__ twenty-three __ twenty-four __ fifteen __ sixteen __ seventeen __ eighteen __ nineteen __ thirty __ thirty-one __ 10 11 12 13 14 25 26 27 28 29 20 21 23 24 15 16 17 18 19 30 31 22 Listen and circle the numbers you hear in 1a. 1c 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√) the thing Kate buys. 1d √ 1e How much is the blue sweater? It’s 15 dollars. Ask and answer questions about the things in the picture above. How much is/are… ? It’s…/ They’re… 1. a skirt ___ 3. socks ___ 5. shorts __ 2. a sweater ___ 4. trousers ___ 6. shoes __ How much do you think the