5.表示加减乘除的说法: 数学运算的加减乘分别用plus, minus, times, divided by表示
a. How much is fifteen plus two?
b. How much is eight minus seven?
c. How much is twelve times twelve?
d. How much is eighty-one divided by nine?
e. Five plus three is / equals eight.
f. Five minus three equals / leaves two.
g. Five times three makes / is fifteen.
h. Fifteen divided by three equals five.十五除以三等于五
6.表示倍数的说法:
a. This room is three times bigger than that one.
b. The dictionary is four times thicker than that book.
c. The earth is 49 times the size of the moon.
7.表示百分比的说法: 基数词+ percent
8.有些基数词可以构成固定词组, 如: one by one, twos and threes三三两两
9.基数词可以与度量单位连用: twenty meters deep, ten meters long, one hundred yards
10.分数的表示法: 分子用基数词, 分母用序数词, 若分子大于1, 则分母用序数词的复数形式, 如: one third, two tenths, two thirds. 有些分数可以用half, quarter表示, 如: three quarters
11.小数: 小数点读作point, 小数点前面的数字读作一个完整的基数词, 小数点后面的每位数字依次用基数词读出, 如: 3.4读作three point four, 0.2读作zero point two, 8.97读作eight point nine seven
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