题目

溶液.胶体和浊液这三种分散系的根本区别是                        （        ） A.是否大量分子或离子的集合体     B.分散质粒子直径的大小   C.是否能通过滤纸或半透膜         D.是否均一.稳定.透明 答案：BJane’s mother worked on the farm from dawn till dark, which just could make ends meet. To make Jane live a   36  life. Mother was very carful about spending money.   37  , Jane didn’t understand her. Every day Mother was busy with her  38   while Jane was studying at school, so they had little time to enjoy themselves. One day, Mother realized Jane was unhappy and even  39  to her, so she decided to go   40  with Jane to make Jane happy. On Sunday morning they went happily to the snowfield. Since they were   41  in white clothes, the manager advised them to buy ski clothes. He said   42  there was an accident, they might be easily  43  in their ski clothes. Mother couldn’t   44  them, so she refused. Then they went skiing in their white clothes. They were skiing happily on the   45   when suddenly the snowfield began to  46  . It was the snowslide(雪崩). They ran a long way and  47   the snowslide finally, but they couldn’t find their way. Later, a helicopter was flying above,  48  people on it couldn’t see or hear them. Jane was  49   because she had hurt her head seriously and  50  dropped on the snow. Just then an idea struck Mother. She pierced (刺破) her wrist  51  and then bright red blood dropped down on the snowfield. A red SOS was on the snow. At last Jane  52  , but Mother died. Every time I   53  the blood dropping onto the snowfield, I feel   54  . I believe anyone who hears the tragedy will  55  Mother for her selfless love to her daughter. 36.     A. happy                B. healthy              C. busy               D. meaningful 37.     A. Moreover             B. However            C. Anyway            D. Though 38.     A. writing         B. housework        C. work               D. research 39.     A. unfriendly       B. loyal                C. kind                D. cruel 40.     A. skating              B. dancing             C. hiking              D. skiing 41.     A. all                     B. both               C. either               D. every 42.     A. now that        B. in case             C. as though           D. even if 43.     A. searched        B. examined           C. found              D. caught 44.     A. pay            B. manage           C. afford               D. stand 45.     A. mountain       B. farmland            C. playground           D. snowfield 46.     A. change         B. melt               C. shake               D. jump 47.     A. escaped         B. passed             C. experienced          D. overcame 48.     A. but             B. so                 C. since               D. while 49.     A. in despair       B. in danger           C. in peace             D. in ruins 50.     A. hair            B. blood              C. tears                D. jewels 51.     A. carefully        B. slowly              C. immediately          D. hardly 52.     A. cried           B. died                C. woke               D. survived 53.     A. find out         B. think of           C. suffer from          D. come across 54.     A. satisfied        B. curious             C. anxious             D. painful 55.     A. admire          B. envy               C. reward             D. thank