Today some people call Amsterdam the“City of Bicycles”because it is a city which is flat and convenient(方便的)for bicycles.
In the 1960s, a group of cycling fans had an i  46 . They believed that it would be better for everybody if o  47  bicycles were allowed in the city centre. They were hopeful that this would help to save energy, reduce pollution and provide free public transport. The group p  48  hundreds of bicycles white and placed them in public places around Amsterdam for people to use.  A  49  was allowed to take them and use them for short journeys, whether he was a local or a foreigner. Wherever someone finished a journey, they would l  50  the bike there for someone else to use. The problem was that it didn’t work –t  51  took all the bicycles within weeks!
H  52 , more than thirty years later，the“white bike”is back in town---this time with a computer chip(芯片)to r  53  its every move! There is a  54  less traffic in central Amsterdam. Thanks to the good ideas of lots of people, like the cycling fans in the 1960s, many people around the world have been enjoying city centre streets w  55  cars for many years.

When I was young，my father told me that little acts of kindness may give one great happiness. Since then I have always tried to help people in   16   .

    One hot summer afternoon, I was   17   down the highway to New York when another car suddenly   18   into my lane(车道). My car was in the far right lane，so it ran onto the roadside. As a(n)   19   driver，I moved my car quickly and skillfully back onto the highway without causing any accident.

    I was    20   with that driver，but I thought that he just did not pay attention to the lane change, and he    2l   did not do that on purpose(故意).The car ran away    22   after cutting me off. Very soon it disappeared from sight. After a while，I came around a curve(弯道) and found the   23   car. The driver was walking along the roadside. He was an elderly man and looked   24   . With no telephone nearby and the nearest services twenty miles away. I decided to    25    and see what the problem was.

    The man’s car had a flat tire(瘪胎). Although he had a spare tire，he had nothing to work with. I decided to   26   him. I changed the tire for him and allowed him to sit in my Air-conditioned car while I did it. Fifteen minutes later，I   27   the work. I was hot and tired，but I really felt   28   after an act of kindness to the man who had earlier   29   my car ran off the road.

You can really enjoy great   30   from kindness acts, so always lend your hands to others in trouble.

1. A. need        B. school        C. danger          D. summer

2.A. walking     B. riding         C. running         D. driving

3. A. fell         B. floated        C. came           D. climbed

4.A. active       B. experienced    C. frightened       D. energetic

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 (污染). 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 (煤) 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. 1.

   Our world is becoming much smaller _______.

   1. A.
      because the earth is being polluted day and night
   2. B.
      thanks to science development
   3. C.
      because of the rise in population
   4. D.
      because the earth is blown away by the wind every year
2. 2.

   Thousands of years ago, life was _________it is today.

   1. A.
      much easier than
   2. B.
      as easy as
   3. C.
      as hard as
   4. D.
      much harder than
3. 3.

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

   1. A.
      Water pollution
   2. B.
      air pollution
   3. C.
      noise pollution
   4. D.
      rubbish
4. 4.

   Air pollution is the most serious kind of pollution because _______.

   1. A.
      it’s bad to all living things in the world
   2. B.
      it makes much noise
   3. C.
      it has made our rivers and lakes dirty
   4. D.
      it makes us become angry more easily
5. 5.

   Which of the following is NOT TRUE?     

   1. A.
      Many countries are making rules to fight pollution.
   2. B.
      The pollution of the earth grows as fast as the world’s population does.
   3. 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.
   4. D.
      The problem of pollution is not so serious because there are so many people