85. 事实胜于雄辩。
86. It is quite typical of him to be late.
87. It’s no good learning English without practice.
88. Man was, is and always will be trying to improve his living conditions.
89. An idle youth, a needy age.
90. The doctor will get more practice out of me than out of ten ordinary patients.
参考答案：
四、翻译：81.She enjoys listening to music while reading.
82.We believe it is very important to save water.
83.I wonder whom he gave the watch to.
84.Smoking should be completely banned in all public places.
85.Actions speak louder than words.
86.迟到是他的典型风格。
87.学英语不实践是没用的。
88.人类无论过去、现在、还是将来都会一直努力改善生活条件。
89.少壮不努力，老大徒伤悲。
90.医生从我身上得到的实践，要比从10个普通病人身上得到的实践还多。
五、改错：91.B－that 92.C－excited
93.A－Having 94.D－be put on
95.D－distracted 96.D－acceptance
97.C－who 98.B－deadly
99.A－wounded 100.C－do
六、作文： It is time to stop doodling
From the picture, we can discover that a man is still carving “I have already travelled here” with a knife on the door of his own house after his return from a trip. Therefore, we can safely come to a conclusion that people tend to be doing some damage to the environment while traveling.
Why does this phenomenon take place? Several factors could account for it. To begin with, it is clear that people aren’t aware of the importance of protecting the environment when they travel. What’s more, most people are in the bad habit of leaving something in their scenic spot, of which their doodle is given the priority. Last but not least, the regulations and rules are not strict and specific enough in the travel destination .
In view of the seriousness of this issue, it is crucial that relevant laws and regulations be worked out to solve the problem. Meanwhile, people should be educated to pay special attention to environment protection while travelling. With joint efforts, I believe the bad phenomenon will be a thing of the past.