《2025年中等职业学校学习与职业能力培养英语第一册》

4. 我不知道你踢足球。I didn't ______ you played ______.
5. 你多久踢一次？______ ______ do you play?

答案： 4.know；football 5.How often
解析：
4. “知道”是know，助动词didn't后接动词原形；“足球”是football，play football“踢足球”。
5. “多久一次”是how often，询问频率。

巩固练习
（ ）Jim is playing ______ guitar here and Jack is playing ______ basketball outside.
A. the；/
B. /；the
C. /；/
D. the；the

答案： A
解析：play后接乐器时加定冠词the，play the guitar“弹吉他”；play后接球类时不加冠词，play basketball“打篮球”，故选A。

巩固练习
（ ）① — ______ do you send e-mails to him?
— Rarely.
A. How long
B. How soon
C. How often
D. How far
（ ）② How long have you ______ this book?
A. bought
B. buy
C. had
D. have

答案： ①C ②C
解析：
① 根据答语“Rarely.（很少）”可知询问频率，How often“多久一次”，询问频率，故选C。
② how long“多长时间”，后接延续性动词，buy是短暂性动词，have是延续性动词，“买”这个动作发生在过去，持续到现在，用现在完成时，have had“拥有”，故选C。

巩固练习
（ ）— Is your sister ______ at dancing?
— Yes, she was born to be a dancer.
A. terrible
B. well
C. good
D. better

答案： C
解析：根据答语“是的，她天生就是个舞者”可知是擅长跳舞，be good at“擅长”，故选C。