40．a(chǎn)ccording to the passage，the muscular sense is responsible for ____ ?。?BR> a）the normal breathing function
b）the work of only our voluntary muscles
c）directing our muscles intelligently
d）the efficiency of our muscles
part iii vocabulary and structure（20 minutes）
directions：there are 30incomplete sentences in this part．for each sentence there are four choices marked a），b），c）and d）．choose the one that best completes the sentence．then mark the corresponding letter on the answer sheet with a single line through the centre．
4l．by the time jet aircraft could fly at a speed faster than sound，train transportation in the united states ____ over several decades．
a）was declining b）had been declining
c）has declined d）declined
42．had australia not been colonized by the british，english ____ there now．
a）will not be spoken b）is not spoken
c）would not have been spoken d）would not be spoken
43．i should like to rent a house，modern，comfortable and ____ in a quiet environment．
a）before all b）first of all
c）after all d）above all
44．this ____ was conducted to find out how many people prefer butter．
a）examination b）inspect c）survey d）analysis
45．there are some hobbies that can only be by people with plenty of time and money．
a）taken on b）taken over c）taken up d）taken in
46．he gave much attention and thought to his children．
a）looking out b）keeping up c）bringing up d）making out
47．it is estimated that the engine of this model is as twice powerful as the ____ one．
a）prior b）early c）former d）previous
48．his parents ____ of me whether we adapted to the new college life．
a）investigated b）knew c）heard d）inquired
49．before leaving his office，the manager showed no sign of ____ our proposals．
a）bringing about b）showing off
c）responding d）pointing out
50．please keep ____ about what you have just heard．
a）quiet b）still c）silent d）voiceless
51．we shall not succeed in controlling world population ____ we improve living conditions．
a）as b）unless c）while d）if
52．candidates who wish to ____ from the examination must notify the secretary immediately．
a）resign b）remove c）suspend d）withdraw
53．i never expect you to ____ at the meeting．i thought you were abroad．
a）turn on b）turn out c）turn up d）turn off
54．the cost of the operation will need to be ____ very precisely．
a）carried out b）cut out c）filled out d）figured out
b）the work of only our voluntary muscles
c）directing our muscles intelligently
d）the efficiency of our muscles
part iii vocabulary and structure（20 minutes）
directions：there are 30incomplete sentences in this part．for each sentence there are four choices marked a），b），c）and d）．choose the one that best completes the sentence．then mark the corresponding letter on the answer sheet with a single line through the centre．
4l．by the time jet aircraft could fly at a speed faster than sound，train transportation in the united states ____ over several decades．
a）was declining b）had been declining
c）has declined d）declined
42．had australia not been colonized by the british，english ____ there now．
a）will not be spoken b）is not spoken
c）would not have been spoken d）would not be spoken
43．i should like to rent a house，modern，comfortable and ____ in a quiet environment．
a）before all b）first of all
c）after all d）above all
44．this ____ was conducted to find out how many people prefer butter．
a）examination b）inspect c）survey d）analysis
45．there are some hobbies that can only be by people with plenty of time and money．
a）taken on b）taken over c）taken up d）taken in
46．he gave much attention and thought to his children．
a）looking out b）keeping up c）bringing up d）making out
47．it is estimated that the engine of this model is as twice powerful as the ____ one．
a）prior b）early c）former d）previous
48．his parents ____ of me whether we adapted to the new college life．
a）investigated b）knew c）heard d）inquired
49．before leaving his office，the manager showed no sign of ____ our proposals．
a）bringing about b）showing off
c）responding d）pointing out
50．please keep ____ about what you have just heard．
a）quiet b）still c）silent d）voiceless
51．we shall not succeed in controlling world population ____ we improve living conditions．
a）as b）unless c）while d）if
52．candidates who wish to ____ from the examination must notify the secretary immediately．
a）resign b）remove c）suspend d）withdraw
53．i never expect you to ____ at the meeting．i thought you were abroad．
a）turn on b）turn out c）turn up d）turn off
54．the cost of the operation will need to be ____ very precisely．
a）carried out b）cut out c）filled out d）figured out