第二节：完形填空(共20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(复杂的)
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(内在的) 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．environ
54．A．inside B．around C．outside D．next
to
55．A．heart B．head C．body D．mind
