Alcohol is often taken as a symbol of a special celebration or as a sign of friendship．So it is 36 to see people toasting with a large glass of alcohol to the health or fortune. 37 , every year, alcohol also ruins thousands of lives and destroys many happy families .
Some people drink alcohol to 38 their tension or pain. They 39 think that through drinking, they can 40 from their problems and worries. But it is never a 41 ．During those hours of drinking, alcohol only numbs（麻木）their senses and makes them forget their worries. 42 , when they wake up, their problems are still unsolved .
A 43 alcohol drinker is running the great 44 of getting heart diseases and liver（肝脏）failure. Too much alcohol taken into the body system, death will 45 occur. Alcohol also affects unborn babies 46 . Those pregnant mothers with 47 alcohol in their blood system risk 48 their unborn babies to suffer from defects（缺陷）at birth. 49 , babies are innocent victims due to their mothers’ mistake. Therefore they should be extremely cautious of any alcohol and it is better to 50 all drinking during pregnancy(怀孕期).
Drunken driving is one of the worst 51 of alcohol abuse. Every year, many lives are lost due to 52 driving on roads and highways. A drunk driver cannot see and judge the distance clearly and will find it difficult to control his vision and 53 on the road，so he 54 control over his reflexes. That is 55 accidents occur. Not only does he hurt himself but also other innocent road users.
36.A.normal B.common C.ideal D. regular
37.A.Accidently B. Fortunately C.Excitedly D. Unfortunately
38. A. relieve B.increase C.create D.produce
39. A.usually B.surely C. mistakenly D. aimlessly
40. A.differ B. solve C. cancel D. escape
41. A. success B. solution C. fact D. decision
42. A. However B. Meanwhile C. So D. Besides
43. A. social B. heavy C. addicted D.light
44. A.advantages B.possessions C.risks D.measures
45. A. eventually B. probably C.hardly D.strongly
46. A.anxiously B. disastrously C. extensively D.differently
47. A. proper B.little C. excessive D.no
48. A. causing B.making C. having D.protecting
49. A.Above all B.First of all C.All in all D. After all
50.A. run out B.leave out C. cut out D.carry out
51.A. reasons B. causes C. effects D. examples
52. A. drunken B.normal C.careless D. dangerous
53.A. patience B.emotion C. judgement D.imagination
54.A.manages to B.tries to C.refuses to D.fails to
55.A.when B.what C.where D. how
2Fe2O3+4CO2，现煅烧464.0 kg FeCO3，得到316.8 kg产品，若产品中杂质只有Fe2O3，则该产品中Fe2O3的质量是____kg。