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Everyone knows that trees are very important to us. F( 1 )of all, trees do good to our health. They give out oxygen(氧气). We can’t live without trees. Secondly, trees can m( 2 )the world more beautiful. Trees are so important to us that we must p( 3 ) more trees. And we must d( 4 ) our best to look a( 5 ) them and we can’t destroy (破坏) them.
If you travel by air across the center of Africa or South America, you fly over forests for thousands of kilometers. These great forests are the oceans of trees. There are thousands and thousands of different kinds of plants and animals.
However, the world's forests are getting smaller all the time. We are cutting down the trees because we need wood, and we need more farmland. Some people say that there will not be any forests like these in 20 or 30 years. What will happen if they disappear?
If we cut down our forests, a lot of plants and animals will disappear from the world. In a lot of places the new farmland will soon look like the old deserts. Crops will not grow there. It will not rain very often, and the weather will get very hot. Perhaps the climate of the world will change. This will be dangerous for everyone in the world. That is why we must take care of our forests.
选择正确选项:
选项: A:2.Forests are homes for different kinds of animals.
C:3.The need for more wood and more land help to protect our forests.
D:4.We'll have more and greater forestsn in 20 or 30 years in some people's view.
E:5.The writer thinks it necessary to protect the forests.
friends,in any possible way. We must know it completely and then our knowledge can be used well and made better.
Though there are many ways for studying,however,the above mentioned will be quite enough if we can keep
them in heart and do so.
">16.The aim of students who come to school is to study. But to study needs a right way,or we would waste the time orthe money. The following are ways of studying.
The best time for reading is morning. Because in the morning,the air is fresh and our minds are clear. For that
reason,we can get good results.
In studying we must be patient.If we don't understand a text well,we must read it again. We should not
read the next one till we have learned the first one well When we are studying,we must put our hearts into the book. Or
we can get nothing from the book while we are reading.
We must always ask"whys".If it is not well understood,write it down and ask our teachers or parents,brothers or
friends,in any possible way. We must know it completely and then our knowledge can be used well and made better.
Though there are many ways for studying,however,the above mentioned will be quite enough if we can keep
them in heart and do so.
However, the world's forests are getting smaller all the time. We are cutting down the trees because we need wood, and we need more farmland. Some people say that there will not be any forests like these in 20 or 30 years. What will happen if they disappear?
If we cut down our forests, a lot of plants and animals will disappear from the world. In a lot of places the new farmland will soon look like the old deserts. Crops will not grow there. It will not rain very often, and the weather will get very hot. Perhaps the climate of the world will change. This will be dangerous for everyone in the world. That is why we must take care of our forests.