2. 该题考查in case的用法，以及句子的因果关系。原因是“雨天路滑”，所以要“小心驾驶”。“不测”可用accidents, 意为“事故；意外”，与驾驶契合。
3. 该提考查when引导的时间状语从句，以及free作为及物动词的用法，后面直接跟宾语bird。 4. 该题考查Not only放在句首的倒装句用法，谓语动词提到主语前面。
Ⅵ. Guided Writing
Directions: Write an English composition in 120-150 words according to the instructions given below in Chinese. 请记叙一件发生在你的旅行途中的印象深刻的事，并简要谈谈你的感悟。
【参考范文】
I love traveling. Traveling not only broadens my horizons but also opens my eyes to the world. What’s more, it refreshes me. However, among all my trips, the trip to Guilin impress me most.
Famed as a heaven on earth, the scenery of Guilin and its livable environment deeply enchanted us. Unfortunately, I saw a couple of youngsters throwing rubbish into the lake where many dead fishes floated on the surface, sitting on the boat and enjoying their sightseeing. What the aboving scene can be elaborated in terms of environmental problem and public manners. On the one hand, along with the development of the economy and society, people tend to attach great importance to personal and economic interests, ignoring ecological balance. As a consequence, environment has been polluted so seriously that environmental protection should be put on the agenda immediately. On the other hand, the inappropriate public manners such as littering and spitting are also one of the major factors causing environmental problems.
To live a more comfortable life, we must promote and popularize the sense of environmental protection. For one thing, laws and regulations should be issued to change the practice of sacrificing long-term environmental health for short-term rapid economic development. For another, some educational campaign should be launched among the public, especially the young, to raise the awareness of public morality. Only in these ways can we achieve sustainable development and live in a harmonious society.
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