( B )

One day，a little boy came to a shop and said to the shop assistant(店员): "I want to buy twelve exercise-books of 10 cents(美分)(100美分=1美元) and nine pencils of 15 cents, four erasers of 20 cents. How much shall I pay(付款)?"

The shop assistant wrote all numbers down on a piece of paper and calculated(计算). Then she said, “You should pay 3.35 dollars altogether(合计).”

"If I give you 5 dollars, how much shall I get back?"

"You'll get back 1.65 dollars. Shall I pack(打包) these things for you?"

"No, I don't buy anything" the boy looked at the piece of paper and said politely(礼貌地). "This is my math homework. Can I take the answer away?"

43. _______ kinds of things are mentioned by(被提到) the boy.

A. One            B. Two          C. Three         D. Four

44. The boy went to the shop _______.

A. to buy something for his school        B. to buy something for his home

C. to see how many things the shop has    D. to get an answer

45. The shop assistant asked(要求) the boy to pay _____ after she  answered the boy.

A. no thing          B. $ 3.35          C. $ 1.65          D. $ 5

46. The boy bought(买) ________ at last(最后).

A. nothing                           B. nine pencils

C. twelve exercise-books               D. four erasers

( C )

These days, many students like playing 3D games. Do you know what 3D games are like? In most 3D games, game players need to control (控制) a character(角色). The character can be a robot or a soldier (士兵). Game players usually use the mouse to make the character move around in his own world. Game players can find th ings such as food and weapons (武器) to help them go on with the game. The character can go straight, sit down, turn left, turn right or pick up things in the game.

Some 3D games have many levels (等级). The character needs to finish different goals for eac h level. Game players can play against their computers, and sometimes they can play with other players on-line. It's great fun to play 3D games. But playing 3D games for long is not good for our study.

47. In most 3D games, game players need to _________.

A. control a character            B. find a robot

C. act as a soldier               D. control the computer

48. How do game players make the character move around?

A. By using the keyboard         B. By using the mouse

C. By telling the directions        D. By moving the computer.

49. In the game, the character can _________.

A. go straight a nd sit down        B. turn left and turn  right

C. Pick up things                D. A, B and C

50. Which of the following is NOT true according to(根据)the passage?

A. Some 3D games have many levels.

B. The character needs to finish different goals for each level.

C. Game players can only play against their computers.

D. Game players can go on-line and play with other players together.