小题1:The       (大气层) of the earth can hold back some of the harmful rays of the sun.

小题2:The boy suddenly lost his b_______________ and fell from the tall tree.

小题3:She is fat. She has been taking exercise to lose w____________ from day to day.

小题4:You hurt his feeling. You should a_________________ to him for what you said.

小题5:The village is          (环绕) on all sides by hills.

小题6:You need to accept people who have different _____________ ( 信仰) from ours.

小题7:We should set a proper amount to be read in a  _______________ ( 有限的) time.

小题8:Qingdao        (海港) is one of the busiest ones in China..

小题9:We asked his ____________________( 允许 ) to use the car.

小题10:It is _________________ ( 显然的 ) that you are telling a lie.

在容易发生煤气中毒的场所要安装什么安全设施？