Ⅰ.单句填空
1.Movement is absolute while stillness （still） is relative.
2.People can act violently （violent） if they feel threatened.
3.Other cultures may use silence （silent） in other ways, particularly when dealing with conflicts between people.
4.We all know that Yuan Longping is famous for his scientific （science） achievements.
5.It is often said that human beings are naturally （natural） equipped to speak.
6.When I was young, I didn’t know much about the harmful （harm） effects of smoking.
7.I recommend him to think very carefully （careful） before he does anything foolish.
8.This morning, when I was walking on the street, I saw that two travelers were reading a map, looking puzzled （puzzle）.
9.UNESCO recently set April 30 as a day to raise awareness （aware） of jazz music.
10.Very few of those interviewed spoke positively （positive） about their childhood.
