四、从方框中选择合适的句子补全对话(有一项多余)。
Liu Tao: Our school playground is so nice and tidy. I really enjoy playing here.
Su Hai: 1.
[Liu Tao eats an apple and throws the core(果核) on the ground.]
Su Hai: Liu Tao, you shouldn't do that! 2.
Liu Tao: 3.
(4. Zhang Hua slips on the apple core. )
Zhang Hua: Ouch! My knee hurts!
Liu Tao: I'm really sorry, Zhang Hua.
Miss Wang: (to them) 5.
A. You're welcome. B. Me too!
C. I'm sorry. I'll pick it up. D. emember to keep our school clean.
E. But it is too late. F. It makes our playground messy.

五、垃圾分类是保护环境的重要举措，能让我们的家园变得更加整洁、美丽。你了解垃圾分类吗？阅读短文，判断正(T)误(F)。
Do you throw rubbish into the right bins? Look! There are different kinds of bins. We should put the leftovers(残羹剩饭) into the green bins, such as left fish, left rice and left vegetables. They're for the "Kitchen waste". We should put the old newspapers, the glass and the cans into the blue bins. They're for the "Recyclable waste". We should put the used batteries(电池) and expired medicine(过期药) into the red bins. They're for the "Harmful waste". How about other rubbish, such as the dust, the toilet paper and so on? We can put it into the grey bins. They're for the "Other waste". Waste sorting is very important in our life. Let's do it! And let's ask our family and friends to do it together!

()1. There are different kinds of bins for the rubbish.
()2. The blue bins are for the "Kitchen waste".
()3. We should put glass bottles into the red bins.
()4. The toilet paper should go into the grey bins.
()5. Waste sorting is not important in our life.