Please turn to Page ______ and look at the ______picture. A . Twelve, fifth B. Twelfth, fifth C. Twelve , five D. Twelfth, five
数词
什么是数词?
数词就是表示事物的数量和顺序的词。 分为 基数词
序数词
基数词
1. 1—12 各有独立的形式。 1 one 2 two 3three 4 four 5 five 6 six 10 ten 11 eleven 12 twelve
7seven 8 eight 9 nine
2.13—19 , 由3—9 +teen 构成。 14 _f_o_u_r_t_e_e_n__ 16__si_x_t_e_e_n___ 19____n_i_n_e_te_e_n__
1. ________ of the students in our school ______ girls. A . Two three, are B. Two thirds is C. Two thirds , are D. Two , is 2. It’s said that _____ of the water around the world ___ polluted. A . two third , has B. two thirds , have C. two third , are D. two thirds , is 3. What should we do now ?
e.g. a sixteen-year-old boy a two-meter-long table “基数词+名词”构成复合形容词 e.g. a seven-day holiday