1 . 尽管他的理论一开始饱受质疑，但在随后的岁月中经受了时间的考验，最终被证明是正确的。(prove) (汉译英)
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3 . 教材原句：Perhaps there is a chance we will return home, after all.
仿写：如果有可能联系上王教授的话，请帮我问几个关于她的研究的问题。
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4 . The questions about increasing the employment being discussed at the meeting are of great significance.（分析画线部分成分并翻译句子）
being discussed作 __________________________
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7 . 随着海伦的知识面和词汇量的扩大，她提出越来越多问题。（汉译英）
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8 . Decades later, however, plastic’s very durability (耐用性) is raising questions about how appropriate it is for one-time products such as plastic bags, or short-lived consumer goods, used in the home for a few years and then cast into a landfill where they will degrade for centuries. (英译汉)
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9 . 我将耐心回答其他人的问题，并且不遗余力地提供许多实用的建议。（汉译英）
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