6.It is bad for children to see too many films with _______________.

5. They saw the fire s________________ from the factory to the houses nearby.

4. As time ________________, everything will be OK.

3. ---Did you catch your plane?

　 ---Yes, we got there just _________________.

2. ________________ everybody is here, Let’s start.

1. It was almost midnight when a fire ________________　 in the neighborhood.

19．生命的开始____________________　 20．地心引力，重力　 __________________

17．冷却__________________　　 18．表面　　　　 __________________

15．流逝，经过________________　　 16．与…不同　　　 __________________

13．猛烈的，强暴的_____________　 14．大气层，气氛　 __________________