had
had having
learned /learnt
learned /learnt
learning
第三人称单数现在式
情况 变化规则
例词
一般情况
+s
works, learns, eats, needs, says
4.
primary China is
s_c_ha_ono_l_. _
ancient
country
with
__a___
long
history.
5. Her mother is __a___ university teacher. She is __a_n__ honest woman.
67..SN_h_o/e_nse_t_oufdpie_etr_shm_aei_ts_s_io_bn/_oo_okfNs_ost_.hh_3o_euMl_dildbibderleatraSikacenhn.oooul.tSohfe_tg_oh_ee_s_toro_o_/m__wistchhoouotl by
2. 在某些度量表示法中: We have PE lessons three times a week.
3. 用在单数的表语名词前,以表示职业、行业、宗教、等级等。 George wants to be an engineer.
4. 在以what引导的感叹句中,单数的可数名词前。 What a pretty girl!
books, cups, cats dogs, birds, arms days, players
以-s,-sh, -ch, -x, +es
[iz]
bus, brush, boxes,
-z结尾的名词