答案　D

4．Why does an officer write a short message quickly on a small piece of paper?

A．Because he wants to test his soldiers' abilities of writing.

B．Because he intends to practice his handwriting.

C．Because he wants to get help.

D．Because he tries to get a pigeon.

答案　C

5．Where did they find the use of the pigeons?

A．In the quiet night.　　　　　 B．In war.

C．At home. D．In the cage.

答案　B

6．How do pigeons find their way?

A．They appear to have a compass inside them.

B．They have good memories.

C．They have good sight.

D．They are very clever.

答案　A

Ⅱ.课文阅读填空

About sharks ·Nearly 400 different types of sharks.

·About 30 types are reported to have attacked humans.

·Three types of 1.dangerous sharks：the great white shark，the tiger shark and the bull shark. Three types of shark attacks ·The shark 2.mistakes you for a fish and attacks you，but when it tastes human flesh，it gives up.

·The shark 3.bites you if it thinks you are fit to be eaten.

·The shark waits for you to swim by，and then attacks you all of a 4.sudden. 5.Advice/Suggestions on how to reduce the risk of a shark attack ·Don't swim in the 6.dark/darkness.

·Don't swim in the ocean if you have a fresh 7.wound.

·Don't wear bright clothing or jewellery.

·Stay in groups.