logo - 刷刷题
下载APP
【简答题】

Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big. And they can eat small animals. One famous meat-eating plant is the Venus flytrap(捕蝇草).
The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.
Why do plants do it? Most plants get what they need from the sun, the air, and the ground. In some places, the ground is very poor. It doesn't have all these important things, especially nitrogen(氮). Animal meat has a lot of nitrogen, so some plants eat meat to get what they need. Let's hope that some of the bigger plants don't get the same idea!
小题1:The Venus flytrap is a kind of _________.A.plantB.animalC.foodD.meat小题2:The underlined word 'presses' probably means _________ in Chinese.A.挤压B.关上C.打开D.松开小题3:Why do some plants eat animal meat? A.Because plants are erous to animals.B.Because animals are erous to plants.C.Because plants want to get what they need from animal meat.D.Because plants want to protect themselves against animals.

举报
题目标签:挤压捕蝇草松开
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】用手将一个木球放入水中某一深度后,松开手,木球上浮,在木球未露出水面的时候,下列说法中正确的是[ ]

A.
木球所受的重力、浮力都不变
B.
木球所受的重力不变,浮力变大
C.
木球所受的重力、浮力都变小
D.
木球所受的重力不变、浮力逐渐变小

【单选题】鼻疖禁忌挤压的主要原因是

A.
鼻部有丰富的血管
B.
鼻部有丰富的淋巴
C.
细菌毒力强
D.
面静脉无瓣膜,可回流至海绵窦
E.
感染不易扩散