1. For some obscure reason, the simple game is becoming very popular.
A. unclear B. obvious C. major D. minor
【解析】 obscure 不清楚的，晦涩的;这四个选项中只有A 它同义。所以选择A
2. The sea turtles natural habitat has been considerably reduced.
A. greatly B. suddenly C. generally D. slightly
【解析】选择A considerably 副词，相当大地;在很大程度上
3. Forest stared at his car, trembling with rage.
A. shaking B. turing C. jumping D. shouting
【解析】 选择A trembling 颤抖;特别是因为恐惧、愤怒或者寒冷而颤抖;发抖
4. A young man is being hailed a hero tonight after rescuing two children.
A. reported B. proved C. prasied D. caught
【解析】 选择C。hail热情赞扬、欢呼认可
5. Anderson left the table, remarkng that he had some work to do.
A. douting B. saying C. thinking D. knowing
【解析】选择B remark 说