第二节：完形填空（共20小题；每小题1.5分，满分30分） What is in the drug that makes you sick or dead? For example

第二节：完形填空（共20小题；每小题1.5分，满分30分）
What is in the drug that makes you sick or dead? For example, cocaine is harmful, but what makes it harmful?
I can’t tell you all about drugs, but I can 36 you think about them in this 37 way. Your body is a very complicated machine, 38 a lot of chemical machinery, all of which is finally turned 39 it all works together. Special chemicals, which we call drugs, can affect it in many different ways.
Some drugs are 40 when your body has a problem, as with disease—causing bacteria. Then someone may give you aspirin to keep your temperature from going too 41 or some penicillin (青霉素) 42 it stops the growth of some kinds of bacteria. 43 , all drugs are really poison, 44 if you take too much, so you must always use them 45 .
Why do some people take drugs like cocaine? For a little while they seem to make you feel better, or happier. But 46 their effects have 47 , your body has to pay an extra 48 to get back to normal. That makes you want to get 49 of the drug.
Drugs like cocaine have their special effects because they act as 50 for your nervous system. They cut off some of your nerve pathways and take away some of your senses and your 51 . They make you want always more. And just a little too much can even 52 nerves to your heart and stop its beating
Many of us worry about the 53 around us and what pollution does to us. How about your internal environment and what goes on 54 you? You control that all by yourself in what you put into your 55 . Most drugs are pollutants. You would not want pollutants in the air and water around you. Why would you want pollutants in your body?
36. A. make B. cause C. help D. let
37. A. funny B. different C. simple D. true
38. A. just B. really C. especially D. sometimes
39. A. as if B even if C. where D. so that
40. A. powerful B. helpful C. painful D. helpless
41. A. high B. tall C. much D. hot
42. A. when B. until C. as D. before
43. A. besides B. thus C. however D. naturally
44. A. at most B. at least C. at times D. at first
45. A. carefully B. easily C. carelessly D. a lot
46. A. where B. before C. after D. until
47. A. worked B. worn C. appeared D. lost
48. A. number B. quantity C. amount D. price
49. A. Some more B. nothing C. a little D. a few
50. A. guards B. medicine C. chemicals D. poisons
51. A. worries B. happiness C. freedom D. pride
52. A. lead B. block C. offer D. stick
53. A. places B. nature C. people D. environment
54. A. inside B. around C. outside D. next
55. A. heart B. head C. body D. mind36-40CCBDB 41-50ACCBA 46-50ACDBB 51-55 ABDAC

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这下我知道了