Effective：达到预期效果

理解要点

可以说 an effective method、the plan is effective、effective in reducing delays 或 effective for opening boxes。比较时用 more effective 和 most effective。

例句

• The new method was effective in reducing delays.新方法有效地减少了延误。
• We need an effective way to share information.我们需要一种有效的方式来共享信息。
• The team tested whether the plan was effective.团队检验了计划是否有效。
• Her explanation was effective because everyone understood.她的解释很有效，因为大家都明白了。
• This tool is effective for opening small boxes.这个工具能有效地打开小箱子。
• An effective solution achieved the intended result.一个有效的解决方案达到了预期结果。

注意事项

Effective 强调达到目标；efficient 强调善用资源。一个方法可能符合其中一项、两项或都不符合。

自己试一试

1. 选择表示达到目标的形容词。 The method achieved its intended goal; it was ___. (effective / ineffective)

   显示答案或示范答案与解析

   effective

   Effective 描述达到所述目标的方法。

2. 选择引出结果的介词。 The method was effective ___ reducing delays. (in / from)

   显示答案或示范答案与解析

   in

   In 可以引出 ing 形式的结果动作。

3. 选择仅凭结果能对资源使用得出的结论。 The method achieved its goal. Its resource efficiency is ___. (not established / guaranteed)

   显示答案或示范答案与解析

   not established

   仅凭结果无法判断资源使用是否高效。

今天就用起来

描述一个预期结果，并说明怎样评估某个方法是否有效。