- 试题详情及答案解析
- Rivers are one of our most important natural resources. Many of the world’s great cities are ____【小题1】____ (locate) on rivers, and almost ____【小题2】_____ country has at least one river flowing through it that plays _____【小题3】_____ important part in the lives of its people.
Since the beginning of history, people ____【小题4】____ (use) rivers for transportation. The longest one in the United States is the Mississippi, and the lifeline of Egypt is the Nile. ____【小题5】_____ transportation, rivers give water to drink, water for crops, and chances for fun and recreation for the people ____【小题6】___ live along their banks.
However, large cities and industries that are located on rivers often make problems. As the cities grow ___【小题7】_____ size and industries increase in number, the water in the rivers becomes _____【小题8】____ (pollute) with chemicals and other materials. People are learning the ____【小题9】_____ (important) of doing more to keep their rivers clean ____【小题10】____ they want to enjoy the benefits of this natural resource.- 答案：located
【小题2】every/each
【小题3】an
【小题4】have been using/have used
【小题5】Besides
【小题6】who/that
【小题7】in
【小题8】polluted
【小题9】importance
【小题10】if/because - 试题分析：河流对于几乎任何一个国家都很重要，而保护河流也显得极为重要了。
【小题1】考查动词用法。locate:（vt.）“使…位于”，be located:“位于”，故该空填located.
【小题2】考查形容词辨析。该句句意：“几乎每一个国家都至少有一条河流从其流经”且根据所填词所修饰的名词country可知，该空不填all，而填every/each.
【小题3】考查固定搭配。play an important part in:“起到重要作用”，故该空填不定冠词an.
【小题4】考查谓语动词。根据该句的时间状语“Since the beginning of history,”可知其所修饰限定的谓语应为现在完成（进行）时，故该空填have been using/have used.
【小题5】考查介词。根据上下文语境可知，该句介绍除了运输之外，河流起到的其他重要作用，故使用介词Besides接宾语transportation，表示“除了运输之外，（还…）”。
【小题6】考查定语从句。因为该定语从句的先行词为people，且关系词代替其在定语从句中充当主语，故该空正确答案为who/that.
【小题7】考查介词辨析。“在…方面”：in，该句句意：“随着城市‘在规模上的’扩大、工业在数量上的增加，河里的水变得…”，故该空应填介词in.
【小题8】考查形容词。该句become为系动词，故其后接形容词polluted“被污染的”。
【小题9】考查名词。该空应为表示“重要”的名词作宾语，故该空正确答案为importance.
【小题10】考查连词辨析。根据语境，该句句意：“人们正在认识到为保持河流的清洁要做出更多努力的重要性，如果他们想享受水资源所带来的好处的话。”或“人们正在认识到为保持河流的清洁要做出更多努力的重要性，因为他们想享受水资源所带来的好处的话。”，故该空正确答案为if/because.
考点：重点词汇、短语及句式