Unit One Lesson Three A knowledge Quiz

Daily Talk: My Favourite Season

1.How many months are there in a year? 2. Which grade are you in? 3.How long have you studied in our school? 4.How many students are there in our class? How many girls? How many boys?

one — first two — second three — third four — fourth five — fifth six — sixth seven — seventh eight — eighth nine--ninth ten--tenth sixteen — sixteenth seventeen-seventeenth eighteen-eighteenth nineteen — nineteenth twenty--twentieth eleven — eleventh twelve — twelfth thirteen — thirteenth fourteen — fourteenth fifteen — fifteenth 基数词 — 序数词

twenty-one---twenty-first thirty-two---thirty-second forty-three---forty-third fifty-four---fifty-fourth thirty — thirtieth forty — fortieth fifty---fiftieth sixty — sixtieth seventy — seventieth eighty — eightieth ninety---ninetieth hundred--hundredth

Fractions （分数 ）

1/3

2/5

1/4

3/4

1/2

2/3

分数由基数词和序数词合 成，分子为基数词，分母 为序数词。当分子大于 1 时， 分母的序数词加 s 。分子与 分母之间用连接符号连接。

1/2, 1/3, 1/4, 1/6, 1/10 2/3, 4/7, 5/6, 3/8, 9/10 3/4, 1/8, 5/7, 1/5, 7/10,

1/3+1/3=2/3 One-third plus one-third is=equals two-thirds. 2/5+1/5=3/5 Two-fifths plus one-fifth is three-fifths. 4/7-1/7=3/7 Four-sevenths minus one- seventh is three-sevenths

A: How much is One-third plus one- third B: One-third plus one-third is=equals two-thirds.

1.2/7+3/7=5/7 2. 9/10-3/10=3/5 3. 1/4+1/4=1/2 4.5/6-1/6=2/3 5.1/3+1/3=2/3