No air means death. There is air around us  36  we can’t see it. Air is everywhere and it gives   37  　to every living thing. We can’t live  38   it. Bad air makes people ill. We must have fresh air to keep us  39  .

In the city there are a lot of people and there are too many  40   running on the road. The gas which the car sends out is made up of(组成) bad gases. Every day we  41   it in and        out. This makes us feel sick. There are many  42  , too. From the chimneys(烟囱) of these factories, we  43   get the smoke in black color. This kind of smoke is  44  to our health. So in order to keep us healthy, we have to go out to the   45   to breathe more fresh air. Or we can go up hills to get more fresh air.

1.A. because            B. though               C. so

2.A. life               B. name      　         C. pleasure

3.A. with               B. without          C. below

4.A. quiet              B. tall       　    C. healthy

5.A. dogs               B. trains      　  C. cars

6.A. breathe            B. draw       　    C. bring

7.A. animals            B. people           C. factories

8.A. usually  　　      B. never     　         C. seldom

9.A. helpful     　　   B. dangerous        C. necessary

10.A. office    　      B. city             C. Countryside

从下面方框内所给的七个选项中选出五个句子，将其序号填入相应空白处，使其组成一段符合逻辑的对话

Beautiful pictures of mountains and forests, clear skies, flying birds, wild animals, silly faces — you can find them all in one place. 46 ? On a postcard! Have people always sent postcards? No! Before postcards, people 47 sealed (密封的) letters.

The 48 for the first decorated (装饰的) postcard came to John P. Charlton in 1861. He thought a simple card 49 a border would be a great way to send a note. Then in the late 1800s, postcards which had pictures on them 50 . By law, people had to write their note on the front—on the picture! The back was 51 for the address. Several years later, England allowed a divided-back (背面隔开的) postcard. Then people could write their 52 on the back left side. And they put the address 53 . During the early 1900s, the golden age of postcards, people around the world were more and more 54 picture postcards. In 1908, Americans alone mailed over 677 million postcards.

Today, postcards are the 55 most popular collection in the world after stamps and coins. You can always see or get a lot of newly-designed postcards, especially on New Year's Day.

46. A. How　　 B. When　　　 C. Why　　　 D. Where

47. A. liked　　　 B. hated　　　 C. found　　　 D. lost

48. A. advice　　 B. picture　　　 C. idea　　　 D. card

49. A. above　　 B. with　　　　 C. under　　 D. for

50. A. happened　 B. changed　　　 C. ended 　　D. appeared

51. A. even　　　 B. only　　　　 C. still　　　 D. ever

52. A. note　　　 B. word　　　　 C. address　　 D. letter

53. A. on the front B. on the back　 C. on the left　 D. on the right

54. A. surprised at B. interested in　 C. expected by D. worried about

55. A. first　　　 B. second　　　 C. third　　　 D. fourth