题目内容
Pine trees, of which there are almost one hundred ____, are found throughout the North Temperate Zone.
A. species B. samples C. specimens D. Standards
A
Three years ago, five parrots were set free in a wild place of Arizona, thousands of miles from the Channel Islands in Jersey where they had been looked after by zookeepers. No evolutionary strategies informed them how to behave in this new landscape of mountainous pine forest unoccupied by their kind for 50 years. To the researchers’ surprise, they failed to make contact with a group of wild parrots imported from The pine tree is a special kind of tree. _______【小题1】_______ This is because many people put pine trees in their homes at Christmas time. They decorate the tree with colored lights, and put Christmas presents under the tree.
Pine trees are different from other trees because most other trees lose their leaves in winter. _____【小题2】_____ So pine trees are also called evergreens.
_____【小题3】_____ They have hard, thin leaves called needles. Pine trees also have pine cones. Pine cones look like hard berries. If you walk in a forest, you will see many pine cones on the ground. ______【小题4】_____ When the seeds fall to the ground, a new tree starts to grow.
______【小题5】_____ The wood is used to make furniture and boats. Many kinds of birds build their nests in pine trees. The seeds of pine trees are food for small animals such as squirrels and mice and for bigger animals such as rabbits and black bears. The needles are good food for large animals such as deer and moose when they cannot find anything to eat in the winter.
If you walk in a forest of pine trees, the air has a wonderful smell. In winter, the white snow on the dark green trees looks very beautiful.
| A．Inside the pine cones are seeds |
| B．Pine trees are valuable for many reasons |
| C．Pine trees are very beautiful all year round |
| D．Some people call the pine tree a Charismas tree. |
F.Pine trees stay green all year long, even in winter.
G.The seeds inside the pine cones are the favorite food for some animals.
The pine tree is a special kind of tree. _______1_______ This is because many people put pine trees in their homes at Christmas time. They decorate the tree with colored lights, and put Christmas presents under the tree.
Pine trees are different from other trees because most other trees lose their leaves in winter. _____2_____ So pine trees are also called evergreens.
_____3_____ They have hard, thin leaves called needles. Pine trees also have pine cones. Pine cones look like hard berries. If you walk in a forest, you will see many pine cones on the ground. ______4_____ When the seeds fall to the ground, a new tree starts to grow.
______5_____ The wood is used to make furniture and boats. Many kinds of birds build their nests in pine trees. The seeds of pine trees are food for small animals such as squirrels and mice and for bigger animals such as rabbits and black bears. The needles are good food for large animals such as deer and moose when they cannot find anything to eat in the winter.
If you walk in a forest of pine trees, the air has a wonderful smell. In winter, the white snow on the dark green trees looks very beautiful.
A. Inside the pine cones are seeds
B. Pine trees are valuable for many reasons
C. Pine trees are very beautiful all year round
D. Some people call the pine tree a Charismas tree.
E. Pine trees do not have soft leaves like the maple tree.
F. Pine trees stay green all year long, even in winter.
G. The seeds inside the pine cones are the favorite food for some animals.