题目内容
_____ in the climate and soil depends in a way on the experiment _____ carried out by the experts.
A.That grows best; has been B.What grows best; being
C.How it grows best; is to be D.What it grows best; was
B
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. | mind |