职称英语考试理工类完型填空练习(九)_职称英语完形填空

职称英语考试理工类完型填空练习(九)

　　1. A) without B)with C)having D)selling

　　2. A) run by B)changed by C) decorated by D)criticized by

　　3. A) slow B)deaf C)blind D)lame

　　4. A) Alarms B) Alarm C) The alarm D) The alarms

　　5. A) noise B) sound C) music D) bell

　　6. A) watched B) produced C) learnt D) heard

　　7. A) where B) what C) that D) how

　　8. A) smoked B) smoke-filled C) filled with smoke D) smoke-filling

　　9. A) has taken B) takes C) took D) will take

　　10. A) on B) near C) without D) from

　　11. A) processes B) produces C) possesses D) proceeds

　　12. A) feature B) quality C)diagram D) source

　　13. A) basis on B) base on C) basing on D) based on

　　14. A) or B) and C) but D) otherwise

　　15. A) developed B) determined C) discovered D) delivered

　　key: BACDB DCBCC ADDAA

　　The Greatest Mystery of Whales

　　The whale is a mammal - warm-blooded, air-breathing, giving birth to its young alive, sucking them-and, like all mammals, originated on land. There are many signs of this. __1__ front flippers, used for steering and stability, are traces of feet.

　　Immense strength is built into the great body of the big whales, and in fact most of a whales body is one gigantic muscle. The blue whales pulling __2__ has been estimated at 400 horsepower. One specimen was reported to have __3__ a whaling vessel for seven hours at the __4__ of eight knots.