题目内容：

Teaching second grade is always a challenge.Each student arrives at school with his own needs and difficulties.One year a student called Billy___me with his behavior as well as his academic requirements.He struggled daily with his ____emotions and often became angry or violent.I knew that，to make____progress，his emotions needed controlling.

One ____I tried to help Billy was to have him come directly into the classroom when he arrived at school.Billy's mom would____me to alert me to a particularly emotional morning at home.Then，I would focus on____his anger and calming him down before the other students arrived.

One week our class was studying____.I thought one way to bring learning into the classroom was to bring my dog Rocky to school for the day.

That day began as normal.I was preparing activities focused on dog themes____I was told that Billy had a ____morning at home and I might need to get him____.As I was talking to his mom，Billy____into the classroom.To Billy's____，Rocky immediately ran up to his new____，wagging his tail and licking Billy's face with doggy affection.Billy couldn't ____Rocky's charm(魅力)and began laughing as his anger melted away.

Throughout the day，Billy never left Rocky's side，feeding him，being gentle with him and even ____the other students while Rocky was sleeping.

Billy was known for doing anything he could to avoid____，but on this day he found a good dog story，“ Clifford's Puppy Days”，and read it to Rocky.How ____I was at the sight of Billy reading happily！My little dog was able to____Billy's day from one of anger and frustration to one of laughter，gentleness and ____.

That day Rocky more than helped me with my____；he helped to change the life of a child！After that Billy's behavior definitely improved.

1.A.challenged  B．cheated

C．benefited  D．betrayed

2.A.unforgettable  B．uncontrollable

C．unconscious  D．unfortunate

3.A.physical  B．mental

C．academic  D．authentic

4.A.advantage  B．agenda

C．reason  D．way

5.A.awake  B．call  C．visit  D．sign

6.A.tolerating  B．observing

C．relieving  D．ignoring

7.A.emotions  B．pets

C．botany  D．diet

8.A.after  B．as  C．when  D．before

9.A.boring  B．fantastic  C．busy  D．rough

10.A.settled  B．punished

C．treated  D．excited

11.A.fled  B．stormed  C．jogged  D．floated

12.A.surprise  B．delight

C．shame  D．fear

13.A.protector  B．trainer

C．friend  D．owner

14.A.resist B．describe  C．reduce  D．forget

15.A.educating  B．envying

C．comforting  D．quieting

16.A.exploding  B．reading

C．arguing  D．apologizing

17.A.surprised  B．disappointed

C．amused  D．confused

18.A.urge  B．shorten

C．transform  D．expand

19.A.admiration  B．curiosity

C．anxiety  D．love

20.A.family  B．teaching

C．housework  D．performance