Unit4Topic1SectionA课件 2023-2024学年仁爱科普版七年级英语上册

Unit 4 Having fun Topic1 What can I do for you? Section A 0 zero 1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 14 fourteen 15 fifteen 12 twelve 13 thirteen 18 eighteen 19 nineteen 16 sixteen 20 twenty 17seventeen Review number 0~20 Finding out the rule of numbers： 20 twenty ['twentɪ] 30 thirty ['θɜːtɪ] 40 forty ['fɔːtɪ] 50 fifty ['fɪftɪ] 60 sixty ['sɪkstɪ] 70 seventy ['sev(ə)ntɪ] 80 eighty ['eɪtɪ] 90 ninety ['naɪntɪ] 12 twelve 13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen Key points 用英语表示时, 20—90表示整几十的数词中, ①______________________为特殊形式， ②______是由其个位数形式后添加后缀-y构成, ③ __________________是由其个位数形式后添加后缀-ty构成。 twenty, thirty, forty, fifty eighty sixty, seventy, ninety twenty-one twenty-two thirty-two 【结论】 表示几十几时, 需在几十和个位数之间添加连字符。 100 200 300 468 999 739 one hundred two hundred three hundred four hundred and sixty-eight nine hundred and ninety-nine seven hundred and thirty-nine 【Key points】 整百的表示方法是在数词后加_________, 不管前面的数词是否大于1, 它都用 _____ (单数 / 复数)形式; 非整百在几十几与百位之间需加上_____。 hundred 单数 and 20 21 22 23 24 25 26 27 28 29 twenty twenty-one twenty-two 30 32 40 43 50 54 60 70 80 90 thirty forty fifty 2a Read and write. twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine sixty seventy thirty-two forty-three fifty-four eighty ninety one hundred/a hundred one hundred and one one hundred and eighty-four two hundred three hundred four hundred 100 101 184 215 355 468 673 739 841 2a Read and write. and fifteen and fifty-five and sixty-eight six hundred and seventy-three seven hundred and thirty-nine 999 nine hundred and ninety-nine eight hundred and forty-one ＋ How much（多少钱） is it? It's ten yuan. It’s twenty yuan. ['twentɪ] ＋ It’s forty yuan. ['fɔːtɪ] How much（多少钱） is it? It’s twenty-one yuan. How much（多少钱） is it? It’s twelve yuan. 2. ￥16.00 ￥60.00 1. ￥18.00 ￥80.00 3. ￥17.00 ￥70.