9) Does he /she like playing basketball? Yes, he/she does. No, he/she doesn’t.

注意：

描述个人的喜好时：名词和动词- ing

形式作宾语; 主语是第三人称单数时一般现在时动词的变化。

动词ing的变化规律：

1)直接加ing ，如： open-opening, clean-cleaning, meet-meeting, sing-singing, study-studying, „

2) 去掉词尾不发音的e ，如：take-taking, close-closing, come-coming, drive-driving, have-having, use-using, write-writing, practice-practicing, „

3) 重读闭音节的，双写最后的字母，加 ing , 如： sit-sitting, put-putting, begin-beginning , get-getting, swim-swimming, run-running, cut-cutting, become-becoming, „

主语是第三人称单数时一般现在时动词的变化规律(与名词变复数规律相同)：

1) 直接加s， 如：cook-cooks, come-comes, close-closes,„

2)以o, x, s, sh, ch 结尾+es , 如: teach-teaches, go-goes, do-does, catch-catches, wash-washes, brush-brushes, miss-misses, „

   3) 辅音字母加y结尾，把y改为i ，+es， 如：fly-flies, worry-worries, carry-carries, „