题目

下列变化属于化学变化的是     A．海水晒烟        B．活性炭吸附冰箱内的异味   C．燃放烟花     D．分离液态空气制氧气 答案：C6．Do you really want to go on to higher education？    This is the first question you must ask yourself and it is the most important at this major crossroads of your life．Many can advise you，but you alone face the consequences of this fundamental decision．    Stop．Think about it．Be honest with yourself and be realistic．Do you want higher education because you really feel you will benefit from it-or are you drifting towards it in response to the expectations of your parents and friends？Conversely，are you being put off higher education by other people's prejudices？    Don't commit yourself to any form of full-time higher education if you are not interested in any of the numerous courses available．Higher education is most uncomfortable and unsatisfying for those who have little interest in the subject they have chosen to study．    It can be an advantage to have a clear idea about the kind of career you eventually want，because then you can choose a course most likely to equip you for your future．    Don't worry if you have no ideas about a future career； but do find out what are the career implications of your choice of course．Broad prospects（前景）will be open to you whatever course you follow，provided you do well and have the right personal qualities．Don'ttypecast typecast typecast yourself or allow anyone else to do so．This particularly applies to girls．Girls are still subject to prejudices about courses which lead to careers traditionally labeled as"man's work"．This is almost always unjustifiable and women are now working in all sorts of former male"preserves"．    Competition for places will be tougher in future but the total available will still be very large．    Seek advice from your careers teacher，careers officer and parents--but it is you who must decide whether or not you want to go on to higher education．42．You attitude towards going to higher education is most important becauseCA．this is the moment in your life when you have to decide your futureB．the wrong attitude is likely to have very serious consequencesC．you will be the one affected by any decision you makeD．it is a time when you can get plenty of advice43．A decision to continue studying should depend onAA．the advantages you believe you will have from doing soB．the career you are hoping to take upC．advice from experienced peopleD．family considerations44．What advice is given about your future career plans？AA．You should be aware of the career prospects of the course you take．B．These must be definite before deciding on study subjects．C．They should not influence your choice of study subjects．D．Any course can prepare you for a suitable career．45．If you"typecast"yourself，youD    A．study only the subjects you are good atB．are prepared to adopt any course of studyC．are influenced by your own personal interestsD．accept other people's views about what you should study．