A. own their    
B. own          
C. them own  
D. their own

     Put 2 February in your diary! It is World Wetlands Day! This special day was first celebrated in 1997
and it is celebrated every year.
     The celebration is a call for action. It is a way to show people how important and useful the wetlands
are  for  humans. On  World  Wetlands  Day,  people  around  the  world  take  part  in  many wetlands
activities.  Children  draw  pictures  to  advertise  the day.  People  get  together  to  clean up their local
wetlands.
     Wetlands help protect nature and  fresh  water.  In  wetlands, there  are many small animals such as
lizards,  frogs,  dragonflies  and butterflies. They play an important part in keeping the balance of nature.
All plants and animals are part of the food chain (食物链). If the small, wetland animals die, some other
animals in the food chain will have nothing to eat. They will also die.
     People need the wetland to keep the balance of nature in the world. If we don't protect nature today,
it will be gone tomorrow.

1. We should write down ________ in our diary. It is World Wetlands Day.

A. importance      
B. 2 February        
C. celebration    
D. 1997

2. People celebrate World Wetlands Day ________ .

A. at home    
B. on their own    
C. all over the world  
D. at local meetings

3. Children in many countries ________ on World Wetlands Day.

A. make boats to pick up rubbish          
B. take part in dragon-boat races
C. draw pictures to do advertising          
D. listing to talks about the wetlands

4. There will be ________ in the future if there are no wetlands.

A. less fresh water for people         
B. no wild animals any more
C. not any humans                  
D. no trees and no plants

5. Small animals in and around wetlands are important because _________ .

A. they are part of the balance of nature and the food chain    
B. there may be no water without them
C. they are able to keep wetlands full of life
D. bigger animals are more dangerous