c.一般疑问句，要在句子开头加助动词Do/Does，句尾用问号，

　　简略答语用Yes,主语+do / does.或No,主语+do / does+not.

　　如：—Do you like oranges?

　　—Yes，I do. (—No，I don't.)

　　★附录:实义动词作谓语时,如果主语是第三人称单数，谓语动词单三式的变化规则如下:

　　1.一般情况加s，例如：looks, listens, visits

　　2. 以ch, sh, s, x或o结尾的词，加-es，例如：teaches, washes, guesses, goes, does

　　3. 辅音字母+y结尾，变y为i再加-es，例如：carry-carries

　　(特殊:have 的单三式为has)

　　一般现在时用法专练:

　　一.单项选择.

　　1.Every year many foreigners ______ to China to learn Chinese.

　　A.have come B.comes C.came D.come

　　2.----Is your father a doctor?

　　-----Yes,he is. He ______ in Taiwan Hospital.

　　A.has worked B.had worked C.works D.worked

　　3.-----I won’t go to bed until the TV play ______ over.

　　------You’d better not do that. A.was B.is C.wil D.will be

　　二.用括号内动词的适当形式填空。

　　1. He often ________(have) dinner at home.

　　2. Daniel and Tommy _______(be) in Class One.

　　3. We ____________ (not watch) TV on Monday.

　　4. Nick ___________(not go) to the zoo on Sunday.

　　5. ______ they ________(like) the World Cup?

　　6. What _______they often _______(do) on Saturdays?

　　7. _______ your parents _______(read) newspapers every day?

　　8. The girl _______(teach) us English on Sundays.