6. Lucy ( ) the teacher that she wrote the paper and did not plagiarize.
A. reinforced
B. pledged
C. convinced
D. required
【答案】C。“露西…老师说论文是她写的，她并没有剽窃”。选项 A：加强、加固;选项 B：保证、发誓;选项 C：说服、使确信;选项 D：要求。选项 AD 明显不符合句意，排除。Convince 用作及物动词，指通过讲道理、摆事实使人在理性上对问题具有认识或表示信服。Pledge 是正式用词，指有仪式的宣誓或保证。根据题干结构可知应是说服之意，故正确答案是选项 C。
7. After three hours, most of the toxins in his body had been ( ) and he was able to rest for another three or four days.
A. disposed
B. eliminated
C. abolished
D. canceled
【答案】B。“三小时之后，他体内大部分的毒素已经被…”，选项 A：处理、安排;选项 B：消除、减少;选项 C：废除、废止;选项 D：取消。空缺填入的动作对象是“毒素”，补充“减少、消除”更合适，故正确答案是选项 B。
8. In our country, teachers generally require students to be quiet and ( ) in the classroom, because this reflects the "order".
A. obedient
B. faithful
C. subsidiary
D. skeptical
【答案】A。“老师们普遍要求学生在教室保持安静和…，这是“有序”的体现”。选项 A：顺从的、服从的;选项 B：忠实的、忠诚的;选项 C：辅助的、附属的;选项 D：怀疑的。根据句意可知填入的词需与“安静”并列，补充“顺从听话”更合适，故正确答案是选项 A。
9. Because of illness, I ( ) going to the scene to watch that wonderful game.
A. stopped
B. failed
C. missed
D. ceased
【答案】A。“因为生病了，所以我…去现场观看精彩的比赛”。选项 A：停止;选项B：失败;选项 C：错过;选项 D：停止、终止。观察题干可知是作者主动暂时放弃，而 cease多指就此结束，彻底停止，并且用于强调抽象事物的停止。结合语境发现使用 stop doing sth更合适，正确答案是选项 A。
10. It appears there’s a ceasefire in the U. S. trade war with Europe. The two sides sat down to stand down the threats and start talking about lowering ( ) and barriers.
A. deficits
B. criteria
C. budgets
D. tariffs
【答案】D。“双方开始谈判关于降低…和壁垒”。选项 A：赤字;选项 B：标准;选项 C：预算;选项 D：关税。根据题干前半段可知描述的是贸易战，所以双方停止威胁，坐下谈判的目的在于降低贸易壁垒和关税。故正确答案是选项 D。
