题目内容：

The hardest arithmetic(算术) to master is how to count our blessings.

According to legend, a young man while crossing the desert    a spring of delicious crystal-clear water. The water was     sweet that he filled his leather canteen    he could bring some back to a tribal elder who had been his teacher.

After a four-day journey he       the water to the old man who took a deep       , smiled warmly and       his student greatly for the sweet water. The young man returned to his village with a     heart.

Later, the teacher let another student taste the water. He       , saying it was awful. It       had become sour because of the old leather container.

The student       his teacher: “Master, the water was       . Why did you pretend to like it?”

The teacher replied, “You       tasted the water. I tasted the gift. The water was only the container for an act of loving-kindness and       could be sweeter.”

I think we understand this lesson best when we receive innocent gifts of         from young children.       it’s a greeting card or a bunch of flowers, the natural and proper       is appreciation and expressed thankfulness because we treasure the idea       the gift.

Gratitude doesn’t always come       . Unfortunately, most children and many adults value only the thing given       the feeling reflected in it. We should remind ourselves and teach our children about the beauty and purity of     of gratitude. After all, gifts from the heart are really gifts of the heart.

1.A. went through   B. came across   C. fell into   D. watched over

2.A. very    B. too     C. enough   D. so

3.A. so that    B. for fear that   C. in case   D. on condition that

4.A. provided   B. sent     C. presented    D. threw

5.A. drink    B. bite     C. look    D. breath

6.A. comforted   B. forgave    C. blamed    D. thanked

7.A. frightened   B. satisfying   C. happy   D. grateful

8.A. drank it up   B. let it out    C. brought it up  D. spat it out

9.A. apparently   B. probably    C. immediately  D. eventually

10.A. doubted   B. replied    C. challenged    D. charged

11.A. delicious   B. sweet    C. terrible   D. clear

12.A. obviously   B. simply    C. entirely   D. certainly

13.A. anything   B. something   C. everything    D. nothing

14.A. sympathy   B. love     C. respect   D. care

15.A. Either    B. Neither   C. If    D. Whether

16.A. response   B. conduct    C. behavior   D. performance

17.A. beneath   B. within    C. beyond   D. about

18.A. naturally   B. normally     C. commonly   D. universally

19.A. other than   B. rather than     C. more than    D. less than

20.A. expression   B. attraction   C. possession    D. explanation