Scientists have helped people understand the dangers the earth is facing.As people live on the earth, we should be fully ready to deal with the dangers.If we do not pay more attention to the problems caused by air pollution, our earth may no longer be a healthy place for plants, animals, and people to live.

　　　 Cleaning up the air is a job that all countries must work on.The problems caused by air pollution can be solved, but a lot of work needs to be done.Governments around the world are beginning to work together to lower the levels of dangerous gases in the atmosphere (大气层).If this can be done well, the ozone layer (臭氧层) can rebuild itself, global warming can be controlled, and acid rain can be reduced.

　　　 In 1967, the government of the United States passed the Clean Air Act.More parts were added to the act in 1970, 1977 and 1990.As a result of these laws, cars now must reduce the amounts of harmful gases.Power factories must use “clean coal” methods to reduce acid?rain gases they produce.

　　　 In 1970, the Environmental Protection Agency (EPA) was set up.The EPA's job is to make sure that the environmental laws are being followed and to find out new dangers and offer solutions.The first Earth Day was also ce?lebrated in 1970.

　　　 While it is very important to address with air on a global scale, each person can also do something to protect the earth.Here are some things you can do every day：

(1)Turn down the heat and air conditioning.

(2)Use the dishwasher only when there are full of dishes.

(3)Practice the 3 Rs: recycle, reuse, and reduce.

(4)Plant a tree.

(5)Walk or ride your bike.

(　　)6.If we don't care about ________ problems, our earth may no longer be a healthy place.

A.air pollution B.water pollution

C.noise pollution　 D.sea pollution

(　　)7.Every country should ________ to solve the problems caused by air pollution.

A.rebuild the ozone layer　　　 B.clean up the air

C.produce harmful gases D.reduce acid?rain gases

(　　)8.All the things the EPA can do is to ________.

A.make more laws 　　　　　 　B.find out new dangers

C.protect the environment D.plant trees

(　　)9.The Clean Air Act was passed ________ by the American government.

A.In 1967　 B.In 1970 　C.In 1977 D.In 1978

(　　)10.In our daily life, we can do something to protect the earth by ________.

A.using more cars B.riding the bikes

C.cutting down trees　 D.turning up the heat

Basketball is still a young game. It's over a hundred years old. In the winter of 1891, a certain college was having some trouble with its boy students. The weather was bad and the students had to stay indoors. As they couldn't play outdoors, they were unhappy, and some even got into fights from time to time.

　　Some of the teachers, at the college asked Dr. Naismith to invent a game so that the students might have something to play with. It was not easy to invent such a game because it had to be played indoors , and the court (球场) was not very large.

　　Dr. Naismith thought for a few days and invented a kind of ball game. It was a fast, wonderful game with much moving and passing of the ball. It was played between two teams. To make a score , the ball had to be thrown into the basket ten feet(英尺) above the floor on the wall . At each end of the court there was such a basket. At first, Dr. Naismith wanted to throw the ball into a box. As he could not find boxes of the right size, he had to use fruit baskets instead. That is how the game got its name.

1. How long is it since basketball was invented?

　　A. 1000 years                      　　　　　　　　　　B. More than 100 years

　　C. 1100 years                       　　　　　　　　　　D. Less than 100 years

2. The students felt unhappy because _______.

　　A. they had much homework to do

　　B. they often got into fights

　　C. they couldn't play outdoors 

　　D. they had little time to study

3. Who asked Dr. Naismith to invent a game?

　　A. Some students                    　　　　　　　　B. Some teachers

　　C. Some students' parents           　　　 D. Some of his friends

4. When a student ______ , he makes a score.

　　A. receives the ball.               　　　　　　

　　B. throws the ball to another student

　　C. runs quickly with the ball in his hand  

　　D. throws the ball into the basket

5. Which sentence is right?

　　A. Dr. Naismith had to use fruit to throw the ball.

　　B. It was easy to invent the game.

　　C. The students could go outdoors when the weather was bad.

　　D. The ball had to be thrown into the basket five feet above the floor.

--Where is Mary? I'd like to have a talk with her.

　　--She _______________the library. You can find her there.

　　A. has been to　　　　B. has gone to　　　 C. has left　　　D. will leave

My summer hols wr CWOT. B4, we usd 2 go 2 NY 2C my bro, his CF & thr 3:-@ kids FTF ILNY, its gr8.

　　Can you understand this sentence? If you can't, don't feel too bad: neither could the middle school teacher in England who received this as homework. This is Netspeak: the language of computerized communication found on Internet or cellphones. To newcomers, it can look like a completely foreign language. So, what is the "translation" of the sentence above? My summer holidays were a complete waste of time. Before, we used to go to New York to see my brother, his girlfriend, and their three screaming kids face to face. I love New York; it's great.

　　Schoolteachers and parents say this new form of writing is harming（破坏）the English language. Increasing spelling and grammatical mistakes cxan be seen in students' writing. They fear the language could become corrupted（面目全非的）.

　　Everyone should just relax, say linguists（语言学家）. They believe Netspeak is in fact more of a good thing. David Crystal, from the University of Wales, argues that Netspeak and Internet create a new language use and the almost lost art of diary writing has been picked up again. Geoffrey Nunberg, from Stanford University, agrees. "People get better at writing by writing," he says, "Kids who are now doing text messaging, e-mail, and instant messages will write at least as well as, and possibly better than, their parents."

　　Linguist James Millroy says, for centuries, it is believed without exception that young people are harming the language. And you can bet your bottom dollar that when today's teenagers become tomorrow's parents, they too will think this way. Milroy argues that languages do not and cannot become "corrupted"; they simply change to meet the new needs.

　　However, Netspeakers do agree that it is important to teach young people how to speak and write Standard English. Cynthia McVey says, "I can understand Netspeak worries teachers and it's important that they get across to their pupils that text messaging is for fun, but that learning to write proper English is a must for their future."

　　Perhaps we should give teenagers a little more trust anyway. Erin, age 12, says, "I wouldn't use text language in my homework. Texting is just for fun"

　1.What is the main purpose of the first paragraph?

　　A. To give an example of a foreign language.

　　B. To show an example of creative methods.

　　C. To express worries about using Netspeak.

　　D. To lead in the topic of Netspeak.

　2.Which of the following is true according to the passage?

　　A. Cynthia McVey points out teenagers can deal with Netspeak properly.

　　B. Geoffrey Nunberg believes Netspeakers can write Standard English.

　　C. David Crystal thinks Netspeak helps develop the habit of writing.

　　D. James Milroy says that language is changing and improving.

　　3.The expression "bet your bottom dollar" in Paragraph 5 means ______.

　　A. be fairly sure          B. be greatly surprised

　　C. think it a pity          D. find it interesting

　　4. What can be the best title for the passage?

　　A. Netspeak: A Widely-Used Language on Internet

　　B. Is Netspeak Harming the English Language?

　　C. Is Netspeak Helpful in Language Learning?

　　D. Netspeak: Advantages and Disadvantages