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# unit7B1a-1e

Unit 7 How much are these socks? Section B (1a—1e)

Can you read these numbers in English?
1 2 3 4 11 12 20 21 13 30 31 14 40 41 15 50 51 16 60 61 17 70 71 18 80 81 19 90 91 100 101 5 6 7 8 9 10 22 32 42 52 62 72 82 92 23 33 43 53 63 73 83 93

11 8 10 6 9 2 3 5 7 1 4
24 34 44 54 64 74 84 94

25 35 45 55 65 75 85 95

26 36 46 56 66 76 86 96

27 37 47 57 67 77 87 97

28 38 48 58 68 78 88 98

29 39 49 59 69 79 89 99

1a Listen and repeat.
10 15 20 25 11 16 21 26 12 13 17 18 22 23 27 28 30 31 14 19 24 29

1b

Which two rows of numbers are in the wrong place?
eleven twenty-six twenty-one sixteen thirty-one twelve twenty- seven twenty-two seventeen

ten twenty-five twenty fifteen thirty

thirteen fourteen twenty-eight twenty-nine twenty-three twenty-four eighteen nineteen

The 2nd and 4th row 第二行和第四行

Learn these numbers and find out the rules:
one two three four five six seven eight nine ten eleven twenty twenty-one … twenty-nine twelve thirty thirty-one … thirty-nine thirteen forty forty-one … forty-nine fourteen fifty fifty-one … fifty-nine fifteen sixty sixty-one … sixty-nine sixteen seventy seventy-one … seventy-nine seventeen eighty eighty-one … eighty-nine eighteen ninety ninety-one … ninety-nine nineteen

one hundred

one hundred and one

one ---- ten --- one hundred two ---- twelve ---- twenty three --- thirteen --- thirty four --- fourteen --- forty five --- fifteen --- fifty six --- sixteen --- sixty seven --- seventeen --- seventy eight --- eighteen --- eighty nine --- nineteen --- ninety

1. 1 - 12: (记住每个单词) 2. 13 - 19: -teen (thir-; fif-; eigh-) 3. 20 - 90: -ty (twen-; thir-; for-; fif-; eigh-) 4. 21 - 99: 十位 个位 5. 100 - 900: 6. 101 - 999:
1-9 hundred

__

____ hundred and

1C Listen and circle the number you hear in 1a.

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1d Listen again. Circle the things in the picture that Kate and her mom talk about. Check (√) the thing Kate buys.

Mom: Oh, look! I like that blue sweater. How much is it? Kate: Fifteen dollars. Oh, I like these socks . Mom: Oh, no. I don’t like red . Kate: Do you like this T-shirt ? Mom :Mmm, yes, I do, but it’s eleven dollars. Kate: Oh. How much is the green sweater ? Mom: It’s twenty dollars. But you have a green sweater. Kate: Mmm. Mom: Oh, do you like these trousers? Kate: Oh, yes. How much are they ？ Mom: only sixteen dollars . Kate: Ok, I’ll take them .

Pairwork

C: How much are the blue trousers? S: They are 16 dollars.

C: How much is the white T-shirt? S: It is 11 dollars.

C: How much is the black hat? S: It is 13 dollars.

How much is this …? It’s …

\$18 \$35\$5

shirt hat How much is this sweater T-shirt hundreddollars. fifty It’s oneseven five

?

\$7

\$ 50

\$ 100

30 \$5

How much are these …?
They’re …
\$10 \$3 \$30 \$2 \$12

\$1

Homework
? Do the leading paper. ? Memorize the vocabulary of unit 7.