1. used to do sth. 过去常常做某事
    否定形式：didn’t use to do sth. / used not to do sth.
    如：He used to play football after school. 放学后他过去常常踢足球。
    Did he use to play football? Yes, I did. No, I didn’t.
    He didn’t use to smoke. 他过去不吸烟。
2. 反意疑问句
　 ①肯定陈述句＋否定提问　如：
     Lily is a student, isn’t she?
     Lily will go to China, won’t she?
     ②否定陈述句＋肯定提问  如：
     She doesn’t come from China, does she?
     You haven’t finished homework, have you?
     ③提问部分用代词而不用名词 Lily is a student, isn’t she?
     ④陈述句中含有否定意义的词，如：little, few, never, nothing, hardly等。其反意疑问句用肯定式。如：
     He knows little English, does he? 他一点也不懂英语，不是吗？
     They hardly understood it, did they? 他们几乎不明白，不是吗？
3. play the piano　弹钢琴
4. ①be interested in sth. 对…感兴趣
    ②be interested in doing sth. 对做…感兴趣
    如：He is interested in math, but he isn’t interested in speaking English. 他对数学感兴趣，但是他对说英语不感兴趣。
5. interested adj. 感兴趣的，指人对某事物感兴趣，往往主语是人
    interesting adj.有趣的，指某事物/某人具有趣味，主语往往是物
6. still 仍然，还　
    用在be动词的后面　如：I’m still a student.
    用在行为动词的前面　如：I still love him.
7. the dark 天黑，晚上，黑暗
8. 害怕…  be terrified of sth.  如：I am terrified of the dog.
    be terrified of doing sth. 如：I am terrified of speaking.
9. on 副词，表示（电灯、电视、机械等）在运转中/打开，
    其反义词off. with the light on 灯开着
10. walk to somewhere 步行到某处  walk to school 步行到学校