Question

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, some are low, some sounds are useful.

_______sound, we can't talk or listen to each other. 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 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.

_______this number by three. 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. other

3.A. hundred of B. hundreds 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. about 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. Divide B. Give C. Leave D. Put

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

Answer 1