Passage

　　Rush hour traffic is a problem in many big cities around the muters(通勤者) rush to and from their jobs in cars,buses,subways,trains,and even on bicycles.Large cities in the United States have two rush hours—one in the morning and one in the evening.But in cities in other parts of the world,there are four rush hours.In Athens and Rome,for example,many workers go home for lunch and a nap.After this midday break,they rush back to their jobs and work for a few more hours.

　　In Tokyo,there's a big rush hour underground.Most of the people in Tokyo take the subways.The trains are very crowded.Subway employees called packers wear whitegloves and help pack the commuters into the trains when the doors close.They make sure that all purses,briefcases,clothes,and hands are inside the trains.

　　In Seoul,many commuters prefer to take taxis to get to work.To hail a cab，many people stand at crossroads and raise two fingers.This means they'll pay the cab driver double the usual fare.Some people even raise three fingers! They'll pay THREE times the normal rate。

　　Streets in Rome are very crowded with automobiles and mopeds(摩托自行车)during rush hours.The city can't make its streets wider,and it can't build new highways,because it doesn't want to disturb the many historic sites in the city,such as the Forum and the Colosseum.It took the city fifteen years to construct a new subway system.Construction had to stop every timeworkers found old artifacts and discovered places of interest to archaeologists(考古学家).

　　In many big cities,there are special lanes on highways for carpools.These are groups of three or more people who drive to and from work together.They share the costs of gas and parking and take turns driving into the city.

　　Getting to work and getting home can be difficult in many places around the world.Rush hour traffic seems to be a universalproblem.

　　1. Big cities have traffic problems during rush hours because there are ——

　　A.special lanes on highways B.many commuters

　　C.four rush hours D.many cars on the street

　　2.Most of the commuters in Tokyo ——

　　A.take subway trains to work B.are packers

　　C.take taxis to work D.carry briefcases to work

　　3. To “hail a cab”means to ——-

　　A.pay double the normal fare B.try to get a cab

　　C.prefer to take taxis D.to stand at crossroads

　　4.Why did it take a long time to build a subwasystem in Rome?

　　A.Because the streets were very crowded.

　　B.Because there are many historic sites.

　　C.Because the workers discovered many artifacts and places of interest.

　　D.Because the traffic always stopped the construction

　　muters in carpools probably——

　　A.live in the city

　　B.take the subway to work

　　C.save money on gas and parking fees

　　D.have special license plates(牌照)

　　Passage

　　Every year more and more plants and animals disappear never to be seen again.Strangely,it is the most intelligent but most thoughtless animal that is causing most of the problems—man.Nature is very carefully balanced and if this balance isdisturbed,animals can disappear alarmingly(令人担忧地) fast.Every day,thousandsof species of animals draw closer to extinction.There are countless numbers of species which may become extinct before they are even discovered.

　　In many lakes the fish are dying.Fishermen are worried because every year there are fewer fish and some lakes have no fish at all.Scientists are beginning to get worried too.What is killing the fish?

　　The problem is acid rain.Acid rain is a kind of air pollution.It is caused by factories that burn coal or oil or gas.These factories send smoke high into the air.The wind often carries the smoke far from the factories.Some of the harmful substances in the smoke may come down with the rain hundreds of miles away.

　　The rain in many places isn't natural and clean any more.It's full of acid chemicals.When it falls in lakes,it changes them too.The lakes become more acidic.Acid water is like vinegar or lemon juice.It hurts when it gets in your eyes.It also kills the plants and animals that usually live in lake water.That is why the fish are dying in lakes.

　　But dead fish may be just the beginning of the problem.Scientists are finding other effects of acid rain.In some large areas trees are dying.Not just one tree here and there,but whole forests.At first scientists couldn't understand why.There were no bugs or diseases in these trees.The weather was not dry.But now they think that the rain was the cause.Acid rain is making the earth more acidic in these areas.Some kinds of trees cannot live in the soil that is very acidic.

　　Now scientists are also beginning to study the effects of acid rain on larger animals.For example,they believe that some deer in Poland are less healthy becauseof acid rain.If deer are hurt by the rain,what about people? This is the question many people are beginning to ask.No one knows the answer yet.But it is an important question for us all.

　　1.Every year thousands of species of animals ————

　　A.are hunted for their meat and skins

　　B.migrate to other places

　　C.starve to death

　　D.die out

　　2Acid rain is caused by————

　　A.natural gas

　　B.the oone(臭氧)layer depletion(损耗)

　　C.acidic lake water

　　D.emissions of industrial enterprises

　　3 Which of the following is true?

　　A.Dead fish in lakes is the only problem caused by acid rain

　　B.Scientists are sure that acid rain is not harmful for mankind.

　　C.If we don't make an attempt to stop acid rain we may never see some animals again.

　　D.There's no reason to worry about several trees that died of some unknown disease.

　　4.What is not mentioned in the text?

　　A.Acid rain is capable of dissolving(分解) some rocks and stones.

　　B.Fish are unable to live in the water containing acidic chemicals.

　　C.Coal,oil or gas form dangerous combinations after being burnt.

　　D.Scientists think that if some larger animals can be affected by acid rain,people may be in great danger.

　　5.Factory smoke.——————

　　A.stays over the factories

　　B.is usually clean now

　　C.turns into air

　　D.can travel hundreds of miles

　　参考答案：

　　Passage

　　1.从文中的第一句话“Rush hour traffic is a problem in many big cities around the muters … in cars，buses，subways，…”可找出答案。答案为B。

　　2.从文章的第二段的第一句“In Tokyo,there's a big rush hour undergroundMost of the people in Tokyo take the subways”可以找出答案。答案为A。3.从第三段可以找出答案。“In Seoul,many commuters prefer to take taxis to get to work.To hail a cab,many people stand at crossroads and raise two fingers.”“to hail a cab”表示“try to get a cab”。答案为B。

　　4.答案可以从第四段来找。“because it doesn't want to disturb the many historic sites…”答案B。5.从最后一段“They share the costs of gas and parking and take turns driving into the city”可以找出答案。答案为C。

　　Passage

　　1.“die out”表示动植物种类的灭绝。从文章的第一段“Every year more and more plants and animals disappear never to be seen again”可以找出答案。答案为D。

　　2.从文章的第三段“It is caused by factories that burn coal or oil or gas”可以得出答案。答案D。3.文章总的来说在描述酸雨对自然的破坏。答案为C。

　　4.用排除法来做，B、C、D在文章中均能找到，但A在文章中没有提到。答案为A。5.从文中的第三段的最后一句可以找到答案：“The wind often carries the smoke far from the factories.Some of the harmful substances in the smoke may come down with the rain hundreds of miles away.”答案为D。