II.READING A.Read the following passage, then choose the correct answer to the following questions There are thousand of species of animal in the Amazon rainforest, each colored differently. Most rainforest animals use their colors for survival. Some animals use color to protect themselves from their predators. An example is the green iguana. Young iguanas are bright green and hide among the bright green lovers leaves of the trees where they live. As they get older, their color becomes duller. Older iguanas live higher in the trees, where the colors all around are less bright. Other animals are predators and use color to hide from their prey. The boa constrictor snake us a good example. Some boas are gray or brown, and these colors help them hide on branches. The emerald boa is green and white, so it can easily hide in the leaves. A boa hides in a tree and waits for a bird to fly by. When one does, the boa grabs the bird from the air and then squeezes it to death before eating it. Poison arrow frogs cant try to hide. They want everyone to see them. These colorful frogs can be orange, red, or green. Their bright colors let everybody know where they are. The bright color warns other animals that the frog is poisonous, so they stay away. These tiny frogs are very poisonous! One frog has enough poison to kill 100 people. The colors of the rainforest are beautiful to us, but to animals they ae very important. They help the animals survive. 11.What is this passage mainly about ? A.predators of the rainforest B.how rainforest animals live C.poisonous rainforest animals D.how colors protect rainforest animals12.What color are young iguanas? A.dull green B.bright green C.green and white D.orange, red, and green 13. What do boa constrictors eat? A. birds B. leaves C. older iguanas D.poinsonous arrow frogs 14. What is true about poison arrow frogs? A.they like to hide B.they are predators C. they have bright colors D.they arent very poisonous 15. Why might a bird fly near a boa constrictor? A. Because it moves faster than the boa constrictor B. Because it isnt afraid of the boa constrictor C. Because it wants to eat the boa constrictor D. Because it cant see the boa constrictor