给多音字注音并组词。

调____  ____    倒____  ____

____  ____      ____ ____

禁____  ____    撒____  ____

____  ____      ____ ____

完型填空

     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.

如图是一个农业生态系统模式图，关于该系统的叙述，错误的是（ ）

若$-1\le x\le 1$时，函数$f\left(x\right)=ax+2a+1$的值有正值也有负值，则a的取值范围是(   )