文章大意：这是一篇记叙文。文章主要讲的是在科学课上我们研究了植物的感官。不同于人类的五大感官，动物只有一两种，有些植物能感知到叶子上的昆虫，捕食或释放一种气味杀死昆虫。
1 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
In today’s Science class, we learnt that human beings have five senses. Our teacher, Mr. Smith, asked us to find out 1 plants have senses, too. After some research, I found that, 2 (like) human, plants have only one or two senses.
Some plants can see the light from the sun, and grow towards 3 . What is 4 (amaze) is that plants 5 like eating small insects can sense the soft touches of the insects on their leaves. After they sense the insects, they move their 6 (leaf) all of a sudden to catch them. It has also been discovered that some plants can feel whether the animals around them want to hurt them or not. No one really knows how the plants can do this. The results of a recent experiment 7 (carry) out by some Italian and German scientists are amazing.
It 8 (observe) that when some plants sense dangerous insects, they give 9 a kind of smell for protection—the smell can attract other insects in the distance which can kill the dangerous ones.
I never 10 (know) plants were so clever.
