Question

4. As there is less and less coal and oil,scientists are exploring new ways of making use of energy,such as sunlight,wind and water for power and fuel.

   A. alternative   B. academic

   C. attractive   D. addictive

Answer 1

4. A

4. A解析:句意:因为煤炭和石油越来越少，

科学家们正在寻找新的方法利用可代替资 源，像把太阳能、风和水等作为电力和燃料。

alternative意为“替换的；供选择的”，符合 句意。

academic 意为“学术的”；attractive 意为“吸引人的”;addictive意为“(药物等) 上瘾的”。