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3、No compound that would safely achieve the same feat in people has been found yet, but the search has been informative and has fanned hope that caloric-restriction (CR) mimetics can indeed be developed eventually.(剑 6 Test 3 Passage 3)

词汇：compound：化合物 mimic：v. 模拟，模仿 fan：v. 煽动，刺激

句子结构分析：这句话是由转折连词but组成的复合结构的句子，可以拆分为：

a. No compound that would safely achieve the same feat in people has been found yet.

句子主语是No compound，谓语是has been found，yet表示还没有，that引导限制性定语从句修饰No compound。

b. But the search has been informative and has fanned hope that caloric-restriction (CR) mimetics can indeed be developed eventually.

But表转折连词，主语是the search，两个并列谓语是has been …and has fanned …，that引导的句子是hope的同位语从句。

译文：至今我们还没有发现能够安全应用到人类身上并达到同样功效的药物，但研究经验助燃了希望之火，令我们相信，限食拟药终究会研制出来的。

4、The literature on goal-setting theory suggests that managers should ensure that all employees have specific goals and receive comments on how well they are doing in those goals. (剑 6 Test 3 Passage 2)

句子结构分析：句子主语是literature，介词on短语修饰literature，谓语是suggests，that引导宾语从句。第二个that宾语从句作ensure的宾语， 这个从句中有连个并列谓语have and receive，how引导宾语从句。

译文：目标设定理论的相关文献提出，管理者们必须确保所有的员工都有明确的目标并且能够在实现该目标的过程中或得评价。

延伸阅读：

雅思听力简答题技巧

雅思听力：多听是入门关键

雅思听力备考——注重说

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