The world itself is becoming much smaller by using modern traffic and TV, telephone and so on. Life today is much easier than it was hundreds of years ago, but it has also brought new problems. One of the biggest is pollution. Pollution comes in many ways. We see it, smell it, drink it and even hear it.

The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. Man is now slowly polluting the whole world..

Air pollution is still the most serious. It’s bad to all living things in the world. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us become angry more easily.

Many countries are making rules to fight pollution. They stop people from burning coal in houses and factories in the city.

The pollution of SO2 is now the most dangerous problem of air pollution. It is caused by heavy traffic. It is sure that if there are fewer people driving, there will be less air pollution.

1.Our world is becoming much smaller _______.

A．because the earth is being polluted day and night

B．thanks to science development

C．because of the rise in population

D．because the earth is blown away by the wind every year

2.Thousands of years ago, life was _______it is today.

A．much easier than   B．as easy as          C．as hard as         D．much harder than

3.Pollution comes in many ways. We can even hear it. Here “it” means______.

A．Water pollution     B．air pollution        C．noise pollution     D．rubbish

4.Air pollution is the most serious kind of pollution because ________.

A．it’s bad to all living things in the world      B．it makes much noise

C．it has made our rivers and lakes dirty         D．it makes us become angry more easily

5.Which of the following is NOT TRUE?

A．Many countries are making rules to fight pollution.

B．The pollution of the earth grows as fast as the world’s population does.

C．From now on, maybe people should try to go to work by bus or bike instead of car ormotorbike. It is helpful to fight against the problem of SO2.

D．The problem of pollution is not so serious because there are so many people

 

If you knew a bottle of water had been recycled from urine （尿）, would you drink it? Astronauts at the International Space Station （ ISS ）may soon do so.

NASA （美国航空航天局）said it would use a high -tech machine （高科技机器） to recycle wastewater at the ISS．The machine will recycle everything from sweat （汗）, the water for washing hands, shower water, water used for brushing teeth, and even urine, to make drinking water．It will save NASA millions of dollars each year．At present, each ISS astronaut uses about 4.4 liters （升）of water every day．It costs about $24 million a year to transport water up to ISS．NASA says that a liter of water costs about $11,000.

The machine will be sent to the ISS in October 2008．NASA hopes it will recycle about 93% of all water used on the station.

Will the water be clean? Scientists say the wastewater will go through a very complicated process （复杂的过程）．For example, different chemicals will be put in the wastewater; the water will be heated to 130℃ to get rid of bacteria （细菌）．The recycled water is thousands of times better than the water from a city tap, scientists say.

1．NASA will use a high - tech machine to recycle wastewater at the ISS to________.

A．protect the ISS

B．make astronauts at ISS work harder

C．provide better water and food for ISS astronauts

D．save the cost of transporting water up to the ISS

2．At present it costs NASA about_________dollars to transport water up to an astronaut at the ISS a day.

A．4.4 thousand    B．11 thousand    C．48.4 thousand  D．24 million

3．Scientists plan to get rid of bacteria in the wastewater by_____________.

A．freezing           B．heating          C．shaking         D．precipitating （沉淀）

4．The reading mainly tells us something about _______.

A．water recycling                           B．the International Space Station

C．a high - tech machine                 D．the cost of NASA

5．Which of the following sentences is true, according to the passage?

 A．The recycled water is much better than that from a city tap.

 B．The high - tech machine will recycle all the water used on the station.

   C．At present, each ISS astronaut uses more water than the people living on the earth.

   D．The high - tech machine can only recycle urine to make water at present.

Beijing has four seasons.

Spring: lasts 65 days, a bit dusty (多尘的) and windy. Spring is short here and the short trip is a popular form.

Summer: lasts 95 days, hot and rainy.

Autumn: lasts 45 days, the best season for tourism and the temperature is mild and the sun is out a lot and pretty.

Winter: lasts 160 days, long, cold and clear, but the ice lantern shows and skiing still attract (吸引) many tourists.

Tourists can come to Beijing all year round. The weather report is available on TV and through the telephone service (7:30 in CCTV1 every night or dial 12121 for the weather report).

（　　 ）46. Which season is the longest in a year?

A. Spring　　　 B. Summer 　　　　　 C. Autumn 　　　　　　 D. Winter

（　　 ）47. The weather of Beijing is ________in summer.

A. warm and windy　　　　 　　　　 B. hot and rainy

C. hot and windy　　　　　　 　　　　 D. warm and windy

（　　 ）48. Which is the best season in Beijing for the tourism?

A. Spring　　　 B. Summer　　　　　　 C. Autumn　　　 　　 D. Winter

（　　 ）49. What attracts many tourists to Beijing in winter?

A. Festivals and skiing.　　　　　　　　　　　 B. Boating and skiing.

C. The ice lantern shows and boating. D. The ice lantern shows and skiing.

（　　 ）50. Where can you find the weather report?

A. Dial 1221　　 B. Dial 1212　　　　　 C. Dial 12121　　　 　 D. Dial 1200

　　

If you knew a bottle of water had been recycled from urine（尿），would you drink it? Astronauts at the International Space Station（ISS）may soon do so．

    NASA（美国航空航大局）said it would use a high-tech machine（高科技机器）to recycle wastewater at the ISS．The machine will recycle everything from sweat（汗），the water for washing hands，shower water，water used for brushing teeth，and even urine，to make drinking water．

    It will save NASA millions of dollars each year．At present，each ISS astronaut uses about4．4 liters（升）of water every day．It costs about$24 million a year to transport（输送）water up to ISS．NASA says that a liter of water costs about$11，000．

    The machine will be sent to the ISS in October 2008．NASA hopes it will recycle about 93％of all water used on the station．

    Will the water be clean? Scientists say the wastewater will go through a very complicated process（复筠导的过程）．For example，different chemicals will be put in the wastewater；the water will be heated to 130℃ to get rid of bacteria（细菌）．The recycled water is thousands of times better than the water from a city tap，scientists say．

1．NASA will use a high-tech machine to recycle wastewater at the ISS to_________

    A．protect the ISS

    B．make astronauts at ISS work harder

    C．provide better water and food for ISS astronauts

    D．save the cost of transporting water up to the ISS

2．At present it costs NASA about _______ dollars to transport water up to an astronaut at the ISS a day.

    A．4.4 thousand       B．11 thousand          C．48.4 thousand       D．24 million

3．Scientists plan to get rid of bacteria in the wastewater by_______.

    A．freezing            B．heating              C．shaking             D．washing

4．The reading mainly tells us something about_______.

    A．water recycling                                  B．the International Space Station

    C．a high-tech machine                         D．the cost of NASA

5．Which of the following sentences is true, according to the passage?

A．The recycled water is much better than that from a city tap.

B．The high-tech machine will recycle all the water used on the station.

C．At present, each ISS astronaut uses more water than the people living on the earth.

D．The high-tech machine can only recycle urine to make water at present.