Bow stance requires the frontal leg and the back leg.

Some time ago, I discovered that one of the chairs in my front hall had a broken leg. I didn' t foresee any great difficulty in getting it mended, as there are a whole lot of antique shops on Pimlico Road which is three minutes' walk from my flat, so I set forth one morning carrying the chair with me. I went into the first shop confidently expecting a friendly reception, with a kindly man saying, "What a charming chair! Yes , that' s quite a simple job. When would you want it back?"

I was quite wrong. I wasn' t too concerned; after all, it was only the first try and there are many more shops on both sides of the road.

The reaction at the second shop, though slightly politer, was just the same, and at the third and the fourth -- so I decided that my approach must be wrong.

I entered the fifth shop with some confidence because I had thought of a plan. The rather fierce shop owner looked it over carefully and said, " Yes, not a bad little chair, how much do you want for it?" "￡20, "I said. "It's got a slightly broken leg, "I said. "Yes, I saw that. It' s nothing; don' t worry about it. "

"What will you do with it? "I asked. "Oh, it will be very saleable once the repair is done, I like the bit of old green velvet on the top, I shall leave that, yes, very saleable. ""I'll buy it, "I said. "Yes, I know, but I' ve changed my mind; as a matter of fact, it is just what I' m looking for. I' ve got a pair to it at home; I'll give you ￡27 for it. "" You must be crazy, "he said; then suddenly the penny dropped and he smiled and said, "I know what you want, you want me to mend your chair. "

"And what would you have done if I had walked in and asked you to repair it 'for me?" "I wouldn' t have done it, "he said. "We don' t do repairs, not enough money in it and too much of a nuisance, but I'll mend this for you. "

The author was not worried about the broken leg of the chair at first because ______.

A．his flat was very near the antique shops

B．he knew it was easy to mend it

C．there were so many antique shops selling chairs

D．he thought it was easy for him to find someone to repair it

听力原文：Could I get this suit in blue instead of black?

(A) Actually, that's the front.

(B) Let me check if we have more.

(C) I think it suits you just fine.

(31)

A．

B．

C．

At the end of the tour, travelers are required to meet ______ the front steps of the hotel to be picked up.

A．at

B．in

C．to

D．out

听力原文： My friend, Vernon Davies, kept birds. One day he phoned and told me he was going away for a week. He asked me to feed the birds for him and said that he would leave the key to his front door in my mailbox.

Unfortunately, I forgot all about the birds until the night before Vernon was going to return. What was worse, it was already dark when I arrived at his house. I soon found the key Vernon gave me could not unlock either the front or the back door. I was getting desperate. I kept thinking of what Vernon would say when he came back.

I was just going to give up when I noticed that one bedroom window was slightly open. I found a barrel and pushed it under the window. As the barrel was very heavy, I made a lot of noise. But in the end, I managed to climb up and open the window.

I actually had one leg inside the bedroom when I suddenly realized that someone was shining a torch up at me. I looked down and saw a policeman and an old lady, one of Vernon's neighbors. "What are you doing up there?" said the policeman. Feeling like a complete fool, I replied, "I was just going to feed Mr. Davies's birds."

(4)

A．His friend might have given him the wrong key.

B．He didn't know where the back door was.

C．He couldn't find the key in the mailbox.

D．It was too dark to put the key in the lock.

A．In the front of the school gate.

B．In the front of the school.

C．In front of the school gate.

D．In front of the school.

ACID RAIN: What's the Solution?

One of the wildest regions in the U.S., far from civilization, is the Adirondack area of northern New York State. For years this isolated spot has had the reputation of being one of best fishing spots in the U.S.

As a boy 30 years ago, Bill Marleau first through the Adirondack wilderness near his small cabin on Woods Lake. Thousands of sportsmen have stayed at his father's lodge nearby.

But now Bill's 134 hectares (335 acres) of lakefront land have only scenic value. Gone are those huge trout that used to swim in the turbulent, nutrientrich water a short distance from his doorstep. Gone from the cool nights are the sounds of thousands of frogs and toads.

And gone are the birds that once fed on those water creatures.

Occasionally Bill sees a lone fisherman fruitlessly cast his bait into the empty waters of old lake. "I just don't have the heart to tell," he said. "This old lake's dead. It was killed years ago by acid rain." What is acid rain?

Acid rain is a popular term for precipitation in the form. of rain, sleet, snow or hail that is more acidic than normal. Acid rain is produced when atmospheric moisture combines with pollutants from power plants, factories and automobiles.

When fossil fuels such as coal and oil are burned, sulfur dioxide and nitrogen dioxide are produced. These two gases react with the water and oxygen in the atmosphere to form. droplets of weak sulfur and nitric acid.

Carried by prevailing winds and weather conditions, clouds containing these droplets travel hundreds, sometimes thousands, of kilometers from the source of the pollutants. Recently scientists found that acid rain now affects huge areas of the North Hemisphere.

Power plants and factories in the heavily industrialized regions of Ohio and Indiana are believed to be the source of the acid rain that killed Woods Lake along with hundreds of others in New York State and eastern Canada. Acid haze over Alaska is believed to come all the way from Japan. And precipitation as acid as vinegar that falls on Scotland and Scandinavia probably originates in England.

How Acidity Is Measured

Scientists measure the acidity of rain in pH units. A pH scale from 0 to 14 is used. Depending upon its chemical composition, a solution is either acidic, alkaline (basic), or neutral. Distilled water, which has a pH of 7, is neutral. Substance with pH values less than 7 are acidic, while those over 7 are alkaline.

Normal rain water with a pH of 5.6 is slightly acidic. But after reacting with industrial pollutants, particularly sulfur dioxide, the pH of rain quickly drops.

When acid rain falls to Earth, much of it ends up in lakes and ponds. In addition to failing directly into a lake, acid rains runs off land into streams and rivers that eventually flow into lakes and ponds. Once acid rain gets into them, its effects can be deadly.

Studies started in 1975 in the Adirondacks indicate that salamanders and frogs are the first to die when the pH is lowered. Normally the pH of a lake is 8,0 slightly alkaline. When the pH drops to 7, the eggs of salamanders and frogs fail to hatch. At pH 6.6 snails begin to die.

Bacteria that decompose leaf matter die too, and the leaf matter collects on the lake bottom. As the acidity continues to drop, ail the major food chains in the lake become affected. In time all the fish die.

Eventually primitive, oxygenconsuming plants nearly choke out all other aquatic greenery. Algae and fungal growth that thrive in an acidic environment move in and cover the entire bottom of the now destroyed lake.

Looking like blue vinegar, the lake is now an entirely changed ecosystem. It contains no life expect the fungal and algal growth and a few surfacedwelling water bugs.

&n

A．Y

B．N

C．NG

A．In the front of the school gate.

B．In the front of the school.

C．In front of the school gate.

D．In front of the school.