题目内容：

通读下面短文，掌握其大意，然后在1—10各题所给的A、B、C、D三个选项中，选出一个最佳选项。

The world ________ many interesting sounds. Some are unpleasant to our ears while ________ are very pleasant to hear. In single day you probably hear ________ sounds. All sounds are different. Some ________  loud, some sounds are high, others are low, some sounds are useful.

________ sound we can’t talk or listen to each other. The ringing of the alarm clock wakes people up. The hooting（鸣笛声）of a car warns people of danger.

Some sounds are harmful. When planes fly low ________ the land; the very loud sounds can damage the house. Very loud sound can even make people deaf.

We know sound travels about one kilometer in three ________ . In a thunder（雷）storm you see the lighting first and then hear the thunder. This is because light travels________ than sound.

Next time you see lighting count the number of seconds before you hear the thunder.

Divide（分成）this number   ________ 3. This will tell you ________  kilometers away the thunder storm is.

1.A. full of   B. fill with  C. is filled of   D. is filled with

2.A. others  B. the other  C. another       D. the others

3.A. hundreds of  B. hundred of  C. hundreds   D. hundred

4.A. may       B. maybe      C. may be         D. can

5.A. Of       B. With       C. Without       D. By

6.A. in      B. on         C. above          D. over

7.A. hours     B. days      C. minutes       D. seconds

8.A. more fast B. much faster C. more faster   D. much fast

9.A. in       B. of         C. by            D. at

10.A. how much B. how many  C. how far       D. how long