It is important to learn about protecting our environment．Here is a 5R rule for us．
1．Reduce
If you want to reduce waste, you should use things wisely．A large number of trees are being cut down to make paper．If everyone uses a little paper carelessly and throw it out, soon we would not have any trees left．Other things are also being wasted, and people don't know what to do with the waste in big cities．So it is necessary to reduce the waste．
2．Reuse
You should always think of reusing the usable things before throwing them out．Give your clothes you do not use or the ones which are too small to the poor．In a family, you may pass on such clothes to younger brothers or sisters．
3．Recycle
Bottles, cans and paper can easily be recycled．By doing so we save lots of time and money．For example, coke cans are sent to a factory, where they are smashed flat and melted and the metal things are made for new coke cans．
4．Recover
When you buy a box of apples, there may be a few rotten(腐烂的)apples, you have two choices：one is to throw the whole apples away, or you could cut off the rotten parts and use the good parts．In this way, you are recovering the eatable parts of food．
5．Repair
If one of the legs of your table is broken, you can repair it．If you want to change for better ones, it is better for you to sell the old things or give them to other people who can use them after doing some repair．It is true that North America is a“throw-away”society, but the time has come to change our way of life so that we can protect our environment．Every one of us should try our best．
(1)
The“Reduce”rule mainly requires us ________．
[ ]
A．
to use things wisely
B．
to cut down many trees
C．
to use much paper
D．
to throw away your old things
(2)
What's the right order of recycling coke cans?
a．collect the used cans
b．melt them
c．smash them flat
d．send them to a factory
[ ]
A．
a b c d
B．
a d c b
C．
d b c a
D．
c a b d
(3)
The“Recover”rule mainly requires us ________．
[ ]
A．
to throw waste things away
B．
to cover waste things with earth
C．
to get back the useful parts
D．
to throw the whole things away
(4)
Which is the best way to do with your broken tables?
You prlbably know the food pyramid(金字塔)well enough．It is a food pyramid with horiaontal stripes(水平线)．Carbohydrates(碳水化合物),such as bread, rice and potatoes, are on the dase of the pyr-amid．They are most of our everyday food．The fats and oils(脂油)are at the top of the pyramid．We should eas the least of them．
Well, the food pyramid．with vertical stripes(垂直线)．Instesd of the horizontal stripes, the vertical stripes mean the five food groups and fats and pyrmid．This is because not all foods in a food group give us the same health benefits(好处)．A fresh apple, for example, would be on the base of the pyramid, while an apple pie would be at the top Tis shows that we can eat more fresh(阶梯)going up the side This shows us how important exercise is．It also shows us that we will be healthier and healthier if we take exercise every day．
Sp wju did some American experts change the pyramid? They did this to do a better job of tell-ing people how to be healthy．The new pyramid tells us to have dalanced(平衡的)food from each food group eery daly．and it shouw us that we need Iess of some us kinds of food than othen, For ex－ample, you need less meat or fish than rice or fruit．It also shows us that not all foods in a groupgive us the same health benfits, and that exercise is quite important in oru everyday life．
(1)
The vertical stripes in the new pyramid mean ________
[ ]
A．
bread, rice, potatses, fruit and meat
B．
some kinds of food we aboule eat
C．
the five food groups and fats and oils
D．
carbohydrates, fats and oils
(2)
The word “fresh” here in Chinese means ________．
[ ]
A．
清新的
B．
新鲜的
C．
新做的
D．
鲜做的
(3)
The steps show us ________．
[ ]
A．
how to eat tats and oils
B．
exerciac in very difficult
C．
how to have dalanoed food
D．
exercise is very important
(4)
The stripes in the new pyramid decome thimmer at the top because ________
[ ]
A．
you shoule cat less as grow older
B．
all foods in a food group give us different at the top because ________．
C．
some foods in each food group are not as healthy as others
D．
the older you are the more important the food pyramid im
(5)
The American experts changed the pyramid because ________．
[ ]
A．
they wanted to sell people how to he healthy more clearly
B．
the old food pyramid doss not tell people to take exercise every day
C．
the new food pyramid looks much better than the old
D．
the old food pyramid is not good for our health at all
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