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The World’s Water Shortage(缺乏)
The world is not only hungry,but it is also thirsty for water.This may seem strange to you, since nearly 70 percent of the earth’s surface is covered with water.But about 97 percent of this huge amount is sea water,or salt water.Man can only drink and use the other 3 percent--the flesh water from rivers,lakes,underground,and other sources.And we cannot even use all of that.because some of it is in the form of icebergs(冰山)and glaciers(冰河).Even worse,some of it has been polluted.
However,as things stand today,this small amount of fresh water is still enough for us.But our need for water is increasing rapidly--almost day by day.Only if we take steps to deal with this problem now can we avoid a serious worldwide water shortage later on.
We all have to learn how to stop wasting our valuable water.One of the first steps is to develop ways of reusing it.
Today in most large cities.water is used only once and then sent out into a sewer(下水道) system.From there it returns to the sea or runs into underground storage tanks.But it is possible to pipe used water to a purifying plant(净化工厂).There it can be treated with chemicals so that it can be used again,just as if it were fresh from a spring.
But even if every large city purified and reused its water,we still would not have enough.All we’d have to do to make use of the vast reserves of sea water in the world is to remove(去除)the salt.
If we take these steps we’ll be in no danger of drying up.
1.Which of the following statements is NOT true?
A.As things remain unchanging,this small amount of fresh water is still enough for us.
B.Our need for water is becoming larger and larger.
C.There will be no water shortage in the future.
D.We should take steps to deal with the water shortage problem.
2.To reuse water,we should .
A.treat it with chemicals B.use it only Once
C.send it out into a sewer system D.make it flow into underground tanks
3.In order to have enough water,we should also make use of .
A.icebergs and glaciers B.sea water
C.rivers and lakes D.underground water
查看习题详情和答案>>I greatly encourage you to be a part of the school sports. Even if you are not the best, you can still have fun. Sports give people a great and healthy way of spending an afternoon, instead of lying around playing video games or even getting into bad things. Sports also give us a sense of achievement. There isn’t a better feeling than to have done something fun and productive for my day.
I think that we all need sports to give us courage. If we try hard in sports, we usually do well. If we did the same in study, we would all be champions. Another reason why I encourage you to play sports is that it’s just fun. Without sports, our lives would just be boring. So as you may be able to tell, sports are amazing!
Our coaches not only teach us to play sports, but show class and good sportsmanship while playing them. It’s never fun when you lose to have the competitor rub it in your face. That’s why our coaches teach us to show class when we lose; also, when coaches get onto you, don’t get down. They only want to see you improve and learn from what they say. When you do badly and they don’t shout loudly is when you should start worrying because they are giving up on you.
Overall, sports are great! They bring out the best and worst of a lot of us. However, we can’ t let sports get too serious to where it brings down all the fun. So to have the most fun in sports, you just need try your best and not worry so much about the winning or losing.
小题1:The underlined phrase “get onto you” in Paragraph 4 probably means ________.
| A.point out your mistakes | B.take up your time |
| C.worry about your future | D.look into your privacy |
| A.Sports bring us great fun only if we have the talent. |
| B.Sports give us the best way of spending free time. |
| C.We can get more out of winning than losing. |
| D.We should take pleasure in doing sports. |
| A.Are we too caught up? | B.To win or to gain? |
| C.Are sports really great? | D.For honor or for health? |
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