Question

  All people need air. We take in air outside our 1 in every breath (呼吸). When you put your face under water,you cannot keep it 2 long.

  A swimmer can't swim under water very long. He needs 3 

  A good swimmer may swim with his face 4 the water if he keeps turning up his 5 to take a breath through his mouth. If he goes down under the water,he 6 come up for air every twenty or thirty 7 .

  He doesn't take in air through his nose under the water 8 water could get in through his nose with the air and go to his lungs. 9 water in his lungs,a man 10 go on living

() 1. A. bodies   B. mouths   C. noses   D. lungs (肺)

() 2. A. for   B. above   C. in D out

() 3. A. water   B. food   C. rest   D. air

() 4. A. in   B. on   C. outside   D. inside

() 5. A. head   B. leg   C. arm   D. mouth

() 6. A. could   B. has   C. has to   D. may

() 7. A. hours   B. minutes   C. seconds   D. years

() 8. A. because   B. if   C. when   D. where 

() 9. A. In   B. With    C. By   D. Under

() 10. A. can t   B. mustn t    C. needn't   D. may not

Answer 1

1〜5. AADAA   6 〜10. CCABA