完形填空。
As we all know, human beings have five senses.1.________have you ever heard that
instead of having five senses like humans, plants have just one or two senses?
Some plants can sense sunlight and grow towards it. Plants 2.________ feed on small
insects can sense the soft touches of the insects on their leaves. 3.________they sense the
insects, they move their leaves all of a sudden to catch them. Scientists have found that plants
can feel4.________the animals around them want to hurt them or not. 5.________ is
even more amazing are the results of6.________ recent experiment carried out by some
Italian and German biologists. According to their report, when some plants sense erous
insects, they give7.________ a kind of smell to pass the information on to 8.________
plants. The smell also attracts other insects which will kill the erous ones. In this way, the
plant can avoid being eaten.