Is the world too crowded? Well, that’s a hard question to answer. It’s all a matter of perspective(视角).In Montana, you might drive for a mile in any direction and not see another human being. In Macao, 60,000 people live in every square mile!
What is true is that the world’s population doesn’t stay the same. It has been increasing at a very fast rate(比例).That’s in part because in each generation(代) these are more people who then have children than in the last generation.
Five hundred years ago, the population of the world was about 460 million. In 1900,the world’s population was under 2 billion(十亿).Right now it is doubling every 40 years. That means, if this rate of growth continues, when you are a parent, there will be twice as many people on earth as there are now. Wow! Now that’s a whole lot of people! Soon the world’s population will probably reach 7 billion. Some people worry about that! But there is a lot of disagreement about just how many people on earth equals(相当于) too many people. But everyone agrees that the more people there are, the more resources(资源) the world needs to feed, house and take care of all of them, and the more need there is to think carefully about how we live and use the earth’s resources.
【小题1】From the first paragraph we can know that ­________.

 Being on the road at 3:15 am to drive 450 kilometers wasn't in my plans for the weekend. I had been looking forward to a few      days to prepare myself for the following busy      .

    My son, Simon, and his good friends were heading for the snowfield. I      my car to make sure that everyone could get to the drop-off point so that they could get together and enjoy their week's      by snowboarding and skiing.

    The only thing that l was thinking of on my journey was that as soon as I      and said goodbye,1 would make the trip       ,in total, a round trip of 900 kilometers in just 10 hours. Such a long drive in one day was frightening, particularly as I was looking forward to relaxation.

    Simon and I talked, on our way, a little about his break and a whole lot of his school subjects. It was great to have this time with him as we       spent five continuous hours together.

    On my return trip, I      a strange sense of loneliness in some heavy morning fog. Within an hour it cleared. I spent the next four hours listening to some CDs and enjoying the scenery. Surprisingly, after my long trip home l was      refreshed（恢复精神）and energized even though 1 was physically tired. And I knew that l would have a good sleep that evening.

    A change in your environment, no matter how great, can provide you with the chance to look at something from different ways, as well as to be refreshed and energized. Now I'm looking forward to my next        event and many more chances to spend quality time with those who are important to me and make my life more rewarding.

1.A. surprising       B. relaxing    C. moving       D. exciting

2.A. hour                     B. day               C. week                   D. month

3.A. offered                     B. parked                C. drove                  D. lent

4.A. performance           B. excitement         C. activity       D. break

5.A. rested                       B. started                C. arrived                D. left

6.A. forward                    B. back                     C. out                       D. away

7.A. always                       B. usually       C. sometime           D. seldom

8.A. developed      B. showed      C. lost                       D. kept

9.A. greatly                      B. completely         C. immediately         D. mentally

10.A. planned                  B. unexpected       C. discussed            D. prepared

My teacher knows       about English.