题目内容：

Singing or listening to music during math class is usually not accepted. However, in Kurt’s classroom, it’s not the ________. Kurt is a math teacher in a high school. This former hip-hop artist is using his ________ background to make math a lot easier and less ________ for his students.

As a child, he had difficulty ________ math. However, as he grew older, he realized that it wasn’t completely his ________ and that the traditional education system just doesn’t work for all the students. So he decided to come up with a new ________ which would make kids more interested in school. Finally a good idea ________ him.

With the help of some friends, Kurt ________ 60-second math tracks（跑道）. They are given a(an) ________ name, like “Van Guard” and she ________ multiplication tables（乘法表）to hip-hop beats. He also encourages dancing during class, ________ it helps the children get into the mood（情绪）and ________ them in their learning. So far, Kurt has only invented musical materials for the multiplications, but the ________ have been so positive that he is now working on new learning materials.

Even since Kurt ________ hip-hop into the classroom, he has had ________ trouble during class. And attendance（出勤率）is always at 100% and the students’ grades have gone up greatly. What’s more, the kids ________ love learning math now.

Kurt wants to ________ the traditional way of teaching, but he’s not saying that it doesn’t work. It just doesn’t work for ________, because not all students learn in the same way. He only ________ to show that we need to keep a(an) open mind when it ________ children’s education.

1.A. shock    B. trouble    C. case    D. route

2.A. humorous    B. musical    C. sensitive    D. unknown

3.A. difficult    B. challenging    C. boring    D. pleasant

4.A. relying on    B. focusing on    C. holding on    D. putting on

5.A. problem    B. interest    C. appetite    D. option

6.A. schedule    B. analysis    C. approach    D. motivation

7.A. attached    B. attempted    C. announced    D. hit

8.A. absorbed    B. created    C. appealed    D. chose

9.A. certain    B. dull    C. false    D. innocent

10.A. shouts    B. sings    C. pretends    D. concludes

11.A. though    B. unless    C. when    D. because

12.A. appreciates    B. trains    C. benefits    D. interrupts

13.A. materials    B. solutions    C. ideas    D. effects

14.A. rushed    B. transformed    C. concerned    D. brought

15.A. less    B. more    C. unreal    D. informal

16.A. faithfully    B. truly    C. suddenly    D. possibly

17.A. replace    B. fight    C. reject    D. follow

18.A. somebody    B. anybody    C. everybody    D. nobody

19.A. determines    B. begs    C. arranges    D. aims

20.A. turns to    B. comes to    C. talks to    D. refers to