Wait a moment, I have _______ to tell you.

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     There are many ways for us to reduce(减少) waste. For 1, we can reduce paper and plastic bags. We can also recycle newspapers, glass, and cans(易拉罐) to make new things. Here are some useful ways to 2 waste.
     Write on 3 sides of paper
     Many people write on only one side of their paper. Why not stop wasting the other side? Some students only use half the pages of their 4 before getting new ones. Try to use up all the paper. People often give cards on birthdays or festivals. How about trying to 5 e-cards instead?
     Don't throw away your old batteries.
     Maybe you do not know that old batteries make the earth 6. This is because they have poisonous parts in them. So, don't throw away batteries. 7 them together. Try to use rechargeable(充电的) batteries for your games and CD players.
     Give off all your unwanted clothes
     There are many poor families in China. You may ask your mother to 8 your unwanted clothes. Then you can pass them on to those poor children. You will feel 9 that you are helping someone else. Also, you can understand 10 your friends or relatives(亲戚) want them before throwing them away.

      According to scientists' research, the month in which babies are born could affect them in some ways.
       Babies born in spring get sick easily. Children born under Aquarius may be less clever than those born in other seasons. They may also have shorter lives than those born in autumn  Scientists believe many of the differences can be explained by the mother's exposure to sunlight in pregnancy(怀孕).  Sunlight helps lead to the production of Vitamin D in the body. The lack of this in the first months of life may have a bad effect on mental and physical health.
         Vitamin D, called the "sunshine vitamin", is known to help regulate（调节） thousands of genes during development, according to a study of more than two million people. So Vitamin D has a good effect on health  This study showed that people born from April to June had slightly shorter lives than those born in October, November or December. Similar studies in the USA showed that people born in autumn lived about 160 days longer than those born in spring.
        Professor Russell Foster, an Oxford University neuroscientist on seasonal biology, said the conclusions were surprising and interesting. He added, "These are small effects but they are very, very clear. I am not giving voice to star signs and they are just for fun. But it is true that we are affected by our season of birth."

下列关于基因工程运载体必备条件的叙述，错误的是（           ）