A

In most parts of the world, many students help their schools make less pollution(污染). They join “environment(环境)club”. In an environment club, people work together to make our environment clean.

Here are some things students often do.

No – garbage(垃圾) lunches. How much do you throw away after lunch? Environment clubs ask students to bring their lunches in bags that can be used again. Every week they will choose the classes that make the least garbage and report them to the whole school.

No – car day. On a no- car day, nobody comes to school in a car—neither the students nor the teachers. Cars give pollution to our air, so remember: walk, jump, bike, or run! Use your legs! It’s lots of fun!

Turn off the water! Did you know that toilets(抽水马桶) can waste twenty to forty tons(吨) of water an hour? In a year, that would fill a small river! In the environment clubs, students mend those broken toilets.

We love our environment. Let’s work together to make it clean.

(   )46. Environment clubs ask students________

A. to run to school every day.    B. to take exercise every day.

C. not to forget to take cars      D. not to throw away lunch bags

(   ) 47. From the passage we know the students usually have lunch__________.

A. at school  B. in shops      C. in clubs   D. at home

(   ) 48.on a no –car day, ______ will take a car to school.

A. both students and teachers   B. only students

C. only teachers              D. neither students nor teachers

(   )49. After students mend toilets, they save______

A. a small river   B. a club    C. a lot of water   D. a toilet

(   )50. The writer wrote the passage to ask students to _________

A. clean school   B. make less pollution    C. join clubs   D. help teachers

B

Steve Jobs was one of the fathers of the personal computing time and the founder of Apple. He was also one of the giants of the information age. Here are some of his greatest contributions.

Apple II

Jobs and Steve Wozniak founded  Apple Computers Inc. in 1976. A year later, the Apple II was  invented. This

production was the world's first

mass-market personal computer. The iMac

Under Jobs' leadership Apple

introduced the all-in-one iMac computer

in 1998. The iMac became the first machine, which offered

only a CD-ROM slot.

The iPad

By 2010, Steve Jobs was  confident the world was ready to have a tablet

computer that would be great for watching movies and playing games. The touch-sensitive iPad is a great success.        iPhone 4s

iPhone 4s came out on October 4, 2011, in America. It looks like iPhone 4.  It has a larger and wider screen and a slimmer yet wider case. It has a better camera and faster data transfer speeds.