Ⅰ.单词拼写
1．I could ________ (察觉) a certain sadness in the old man's face.
2．The ________ (根) of the tree are strong and deep in the earth.
3．Television stations around the world are ________ (连接) by satellites.
4．The flower grows about two ________ (厘米) every day.
5．There is a famous Greek m________ (神话) in which Icarus flies too near to the Sun.
6．This is a nice folk l________ (传说，传奇) , expressing the beautiful dream of geologists.
7．Especially the pollution that chemical ________ (农药) causes to the environment is serious.
