()4. In that place, students sit around in small at lunchtime. They call them "lunchbox clubs".

A.doubles
B.groups
C.tricks
D.matches

B

根据语境，学生午餐时围坐成被称为“午餐盒俱乐部”的小集体，需选表“团体”的词。A意为“两倍；双打”，C意为“把戏”，D意为“比赛”，均不符合；B意为“组；团体”，符合语境。

()5. There is a schoolbag over there. It's books. Is it yours?

A.late for
B.good at
C.full of
D.busy with

C

先分析各选项含义：A.late for意为“迟到”，B.good at意为“擅长”，C.full of意为“充满”，D.busy with意为“忙于”。结合句意“那边有个书包，它装满了书，是你的吗？”，可知应选C。

()6. —Do you like listening to English songs?
—No. I listen to them because they're very difficult for me.

A.always
B.often
C.usually
D.hardly ever

D

根据答语“No”及原因“它们对我来说很难”，可知几乎不听英文歌，A（总是）、B（经常）、C（通常）不符合语境，D（几乎从不）符合。

()7. If you don't want to your best friend, you should tell him what you think.

A.build
B.succeed
C.guess
D.lose

D

先理解句子语境，需选符合“不想失去最好的朋友”语义的动词。A.build（建造）、B.succeed（成功）、C.guess（猜）均不符合；D.lose（失去）符合语境。

()8. The badminton racket belong to . Her name is on it.

A.must; Carla
B.may; Carla's
C.can't; Carla
D.must; Carla's

A

根据“Her name is on it”可知，羽毛球拍肯定属于某人，第一个空表肯定推测，用must，排除B、C；belong to后接人名作宾语，Carla's是所有格，不能作宾语，第二个空填Carla，因此选A。

()9. — do you exercise at home?
—Two or three times a week.

A.How long
B.How often
C.How many
D.How much

B

根据答语“Two or three times a week（每周两到三次）”可知，问句是对频率提问。A选项How long询问时长；B选项How often询问频率；C选项How many询问可数名词数量；D选项How much询问不可数名词数量或价格。因此选B。

()10. —Julie plays the piano after dinner every day.
—. And she's getting better every day.

A.Every dog has its day
B.Actions speak louder than words
C.Practice makes perfect
D.Many hands make light work

C

根据对话语境，Julie每天练习弹钢琴且每天进步，对应谚语“熟能生巧”。选项中C符合语境，A、B、D均不符合。

二、根据句意及汉语提示完成句子。
1. I go to the library near my home (一次) a week.
2. This coat (适合) Jack very well.
3. The little girl (很少) goes out at night with her friends.
4. It's a (完美的) day for a sports meeting.
5. Wang Yu always has lots of (精力).
6. This year, my (目标) is to learn English well.
7. This game only fits for (青少年).
8. My teacher always (鼓励) me to join the sports club.
月日 星期 天气
9. I'm new here so I have (没有几个) friends.
10. I need to (练习) playing the piano more.

1. once 2. fits 3. seldom 4. perfect 5. energy 6. goal 7. teenagers 8. encourages 9. few 10. practice

本题考查七年级英语Unit 3 Keep Fit相关词汇的运用，需根据括号内汉语提示，结合句子语境填入正确的单词形式。