5.　　　 Chocolate is u　　　　　　　 　childrens' favourite food.　

4.　　　 The clever girl could teach herself English w　　　　　　 　she was ten.

3.　　　 Houses in some cities now are much more e　　　　　　　 　than before.

2.　　　 The students from America live on the fifth f　　　　　　　 .　

1.　　　 Your p　　　　　　　 　is in one of the boxes. Can you guess what it is ?

10．-Have you watched the dance “Thousand-hand Goddess of Mercy (千手观音)’’?

　　 -Yes，it’s wonderful．We can hear the voices from the dancers’　 　　　　　　　　(心脏) .

第(4)组：

9．Trees and grass play an important part in 　　　　　　　　(帮助)to　 improve our environment．

8．Reading for pleasure is the easiest way to 　　　　　　　　(成为) a better reader in English．

7．A journey of a thousand l I　 begins with the 　　　　　　　(第一)step．　

6．Plants need CO₂ when they grow, so they can make CO₂ 　　　　　　　　　(更少的) in the air.