题目内容：

阅读下面短文，根据语境、音标或所给单词的提示，在每个空格内填入一个适当的词，要 求所填的词意义准确、形式正确，使短文意思完整、行文连贯。

Do you know why different animals or insects（昆虫） have their

own colors? Because they can use different colors to keep safe.

Some birds feed on insects, but they cannot catch locusts 1. (easy). Why? It is because locusts change their colors 2./ tə'geðə(r) / with the change of the colors of the crops. When crops are green,

locusts look 3. . When crops are brown, the color of locusts change to the brown, too. Some

other insects have to  4./ ə'pɪə(r) / only at night. It is because they have colors different  5.

plants and birds can find them in the day and eat them.

If you study the animal life, you’ll find the main use of coloring is to protect 6.(they). Tigers, lions and other animals move quietly through forests. Many small animals cannot find them

because they have the 7. colors as the trees and grass.

In the sea, there’s a kind of fish with a 8./sɔft/ body. It is not as strong as other 9.(one), but it lives up to now. It’s because something black can be sent out when it faces danger and quickly 10.(swim) away. That’s why we can still see them in the sea.