题目内容
In summer, young cottontail rabbits can be found snuggled in fur-lined nests． As the pink color of their skins fades and fur appears, they take on a brown-and-white pattern． Their ears grow crisp and upright, and within a few days they learn to hop about and nibble on green sprouts． But during the first two weeks about a third of them die． In fact, few live longer than a year． Their enemies -- hunters, disease, harsh weather, and hostile animals -- see to that．
Cottontails usually feed during the night． They eat herbs in the summer, and tender buds and the bark of trees and shrubs in the winter． Because of their eating habits, it would be a tragedy if every rabbit survived． As the plants disappeared, the soil would blow away and no new plants could thrive．
1．Cottontail young can usually be found in_______．
A． spring B． summer C． autumn D． winter
2．In a few days the cottontail starts to look________．
A．pink and furry B． crisp and upright
C． brown and white D． faded and weak
3．One of the first lessons the cottontail learns is how to________．
A．find its own food B．build its own nest
C．keep its ears upright D．avoid disease
4．Few cottontails live longer than a year because of_______．
A．the shortage of food B．their natural enemies
C．the lack of space D．their wasteful habits
5．Which happens last?
A．The cottontail's ears grow crisp and upright．
B．The cottontail's skin color fades．
C．The cottontail takes on a brown-and-white pattern．
D．The cottontail learns to feed itself．
6．The cottontail's winter food is usually_______．
A．tree bark and buds B．all types of herbs
C．nuts and pine cones D．weasels and other animals
7．If every cottontail survived, the result would probably be_______
A． floods B． forest fires C． soil erosion D． lightning storms
解析：
提示：
