单选题 Most Canadians drive their cars to get to work. Aron Myers, ______, has a special passion for walking. Aron has demonstrated the need to help people see the benefits, both environmentally and physically, of walking. He orchestrated the "Walk-to-Work Day," the national committee that encouraged thousands of people ______ to work wherever possible.
He firmly believes that if walkers can manage the distances, walking more regularly will provide lasting health benefits as well as solve unnecessary traffic ______ in local towns and cities.
单选题
  • A. but
  • B. therefore
  • C. however
  • D. now that
【正确答案】 C
【答案解析】[解析] 语法：连接副词 1．空格前后句子结构不完整，不能使用连词，因此A选项but和D选项now that可排除。 2．B、C选项语法上没有连词功能，但都是具有连接意义的连接副词。原文意思是“大多数人喜欢开车，但是阿伦·米尔喜欢步行。”因此C为正确选项。
单选题
  • A. walk
  • B. to walk
  • C. walking
  • D. walked
【正确答案】 B
【答案解析】[解析] 语法：不定式 1．选项均为walk的不同形式。 2．动词encourage常以encourage sb. to do sth. 的形式出现，表示鼓励某人做某事。因此B为正确选项。
单选题
  • A. congested
  • B. congest
  • C. congestion
  • D. to congest
【正确答案】 C
【答案解析】[解析] 单词形态：名词 1．本题选项均为congest的不同形式，考查单词正确形式的选择。 2．空格内须填入一个名词，作动词solve的宾语。原文意思是“可以解决不必要的交通堵塞”，因此C为正确选项。