题目

下列物质中，属于芳香烃且属于苯的同系物的是（ ） A．    B．    C．    D． 答案：D5、Life is difficult. It is a great truth because once we truly understand and accept it, then life is no longer difficult. Most do not fully see this truth. Instead they complain about their problems and difficulties as if life should be easy. It seems to them that their difficulties represent a special kind of suffering especially forced upon them or else upon their families, their class, or even their nation. What makes life difficult is that the process of facing and solving problems is a painful one. Problems, depending on their nature, cause in us soreness or loneliness or regret or anger or fear. These are uncomfortable feelings, often as any kind of physical pain. And since life causes an endless series of problems, life is always difficult and is full of pain as well as joy. Yet, it is in this whole process of solving problems that life has its meaning. Problems are the serious test that tells success from failure. When we desire to encourage the growth of the human spirit, we encourage the human ability to solve problems, just as in school we set problems for our children to solve, it is through the pain of meeting and working out problems that we learn. As Benjamin Franklin said, “Those things that hurt instruct. ” It is for this reason that wise people learn not to fear but to welcome the pain of problems. 1．From the passage, it can be inferred that_______. A．nobody has problems                                                                  B．we become stronger by facing and solving the problems of life 　  C．life is difficult because our problems bring us pain D．people like to complain about their problems 2．The writer probably used just one short sentence in the first paragraph to  _______. A．save space                                   B．persuade readers        C．make readers laugh                          D．get readers’ attention 3．According to the passage, we give school children difficult problems to solve in order to ______.        A．encourage them to learn        B．teach them to fear the pain of solving problems        C．help them learn to deal with pain       D．teach them how to respect for problems 4．The saying from Benjamin Franklin “Those things that hurt instruct” suggests that _______.    A．we do not learn from experience  B．we do not learn when we are in pain C．pain teaches us important lessons D．pain cannot be avoided 5．The underlined word in Paragraph 3 means _________.         A．happiness          B．pleasure               C．sadness               D．excitement