BALl, Indonesia－China, a booming economy known for its air pollution and rising greenhouse gas emissions (排放物), is winning praise at an international climate confernce for its efforts to clean up and support anti－global warming moves.

Some experts believe China has surpassed the United States as the world’s emitter of greenhouse gases, yet it has made long steps in improving energy efficiency and promoting renewable energy, environmentalists and officials said on Friday.

“I think China is taking climate change seriously, and that’s a good sign that there will be a good outcome here in Bali,”said Artur Runge－Metzger, head of the European Commission delegation at the conference on the Indonesian island.

Even hard－to－please environmental groups are praising Beijing, though it’s clear China, which relies heavily on dirty, outdated coal burning techniques has a lot more to do.

China ranked 40^th on environmental watchdog Germanwatch’s annual index (指数), which ranks 56 industrialized and developing countries, was an improvement of four places over last year, the group said on Friday. The US and Saudi Arabia were the worst on the list, at 55^th and 56^th places, respectively. Last year, the US was ranked 53^rd, followed by China, Malaysia, and Saudi Arabia.

Germanwatch noted the Chinese government has carried out policies promoting renewable energy, including orders that solar, wind, hydroelectric and other forms of renewable energy provide 10 percent of nation’s power by 2010. it also has ordered key industries to reduce energy consumption (消耗) by 20 percent.

Politicians and activists said Chian’s defensive attitude of the past has given way to constructive discussions at the Bali climate change conference. Beijing has also taken the lead among developing countries in calling for wealthier nations to speed up the transfer(转换) of cleaner technologies to emerging economies to help move away from fossil fuels.

Hans Verolme, director of WWF International’s Global Climate Change Program, attributed China’s position to concerns over energy security and a recogniton that climate change is already having a severe effect on the country, with worsening droughts, water shortages and floods.

68．In the passage, China is praised for      .

A. its booming economy                     B. its support for anti－global warming moves

C. its development in key industries      D. its efficiency in energy use

69．Which country ranks the last on environmental watchdog Germanwatch’s annual index?

A. China.           B. The US.                C. Saudi Arabia.  D. Malaysia.

70．From the fourth paragraph we can learn that      .

A. China has greatly updated its techniques in energy use

B. coal burning techniques have been dropped by developed nations

C. China has taken the lead in cutting down greenhourse gas emissions

D. environmental groups are quite pleased with the present situation in China

71．The underlined phrase“emerging economies” probably refers to      .

A. developed countries                    B. developing countries

C. wealthy nations                           D. powerful countries

Invisible ink has fascinated kids for generations. You might think that it would be difficult to make, but it’s not.

All you’ll need for this experient is some milk; some white paper; a clean cotton swab (药签) or small, clean paintbrush; the kitchen stove; and help from an adult. The most difficult part of this mini-project is choosing the message that you’ll write with your invisible ink. Maybe you’ll want to pretend that you’re a spy on a secret mission, writing messages that would lead to big, big trouble if they were discovered. Choose your words carefully.

All you need to do is, using the brush of cotton swab, write your message with milk on the paper. Don’t use a lot of milk and soak the paper. Use just enough to make a thin coating.

Once you’ve finished writing, ask the adult who’s helping you to turn on the kitchen stove to a low heat. Very carefully, using kitchen mitts ,hold the paper about a foot above the warm burner. If you don’t see results, you may have to make the burner a little hotter.

Do not, however, hold the paper low over the burner. As the paper heats up, your message will become brown and you’ll be able to see what was written. You want to know why? It’s because chemical compounds in the milk have a low burning point. When the paper gets warm, those compounds will heat up and trun brown, while the paper will be unaffected.

You also can try this experiment with other liquids, such as orange juice, lemon juice, vinegar, and apple juice. Just be sure to follow all safety rules and have an adult around to help you.

60．What is probably the best title for the passage?

A. A Scientific Research                  B. Making Invisible Ink

C. How to Make a Spy                     D. A Classroom Experiment

61．Which is the right order of the process?

a. write words on the paper.        

b. get help from an adult.

c. get ready some milk, paper, cotton swab, etc.

d. hold the paper over the warm burner.

A. c,a,b,d.             B. b,c,a,d.             C. c,d,a,b.             D. a,c,d,b.

62．How can you see what is written on the paper?

A. Soak the paper into water to make it appear.

B. Wait till the paper is dry enough.

C.   Use some chemical compounds to make it appear.

D. Hold the paper above the warm burner to make it appear.

63．This passage is intended for       .

A. adults         B. people        C. teachers            D. children

Compared to other parts of the body, our ears don’t ask for much. They don’t need to be brushed once a day like your teeth. But they meed some special care, especially if you like listening to music with earphones.

Maybe your mum or dad has told you,“Turn that down before you go deaf!” Well, they are quite right. Loud noise might cause hearing loss for a short time or even forever. Think that earphones are a good way to escape from tour parents’ eyes? Well. It may not be as good a way as you expect. American doctors have studied a group of 44,000 people who used earphones more than 15 hours per week. The doctors found that 37,000 of them were getting hearing problems.

If you use earphones for to8 long a time, your ears might feel painful. You could also lose your hearing for the rest of your life. So don’t wear your earphones too long. Use them less than one hour a day. Want sharp hearing? Don’t forget to do the following: Try to stay away from places where there is too much noise, like a disco. If you have to go, wear earplugs. When swimming, remember to put earplugs into your ears to stop water from getting in. Never put anything sharp into your ears. If you think you have too much earwax, ask your mum or dad to help you clean it out.

Keep these things in mind! Then you won’t be saying “WHAT???” when you are older.

56．Which is the topic paragraph of the article?

A. Paragraph One.                       B. Paragraph Two 

C. Paragraph Three                     D. the last Paragraph

57．If you want sharp hearing, you should    .

A. have your ears specially trained

B. often wear earplugs and clean out the earwax

C. take good care of your ears     

D. choose what you listen to carefully

58．Using earphones “may not be as good a way as you expect” because    .

A. your parents know what you’re doing    

B. it can cause hearing problems

C. it makes your parents angry    

D. most of you use them improperly

59．“WHAT???”in the last sentence is an expression showing that the speaker  .

A. has become impatient                     B. speaks in a loud voice

C. is slow in understanding                 D. asks for a lot of repeat

Honesty is a kind of quality and that’s               it takes to communicate with others successfully.

A. why        B. what          C. how         D. which

One reason that we haven’t had his letter is that he               it to our old address by mistake.

A. might send                                 B. should have sent

C. should send                               D. may have sent

―I am so sorry to tell you, sir. You are fined for speeding. Please sign here.

―Speeding?    

A. Are you all right?                        B. I’m a foreigner.

C. You can’t be serious！             D. It doesn’t matter.

He says what he thinks,     other people’s feelings.

A. regardless of        B. in charge of    C. instead of  D. because of

Your job is well done.                 you               for it?

A. Have, paid  B. Were, paid   C. Did, get paid D. Have, got paid

In my opinion, every chance should be fully taken advantage                the environment.

A. of protecting                B. of to protect             C. to protect             D. protecting

Later in this chapter cases will be introduced to readers               consumer complaints have resulted in changes in the law.

A. where           B. when                  C. who                   D. which