题目内容
17．Wang Kung and Wang Wei are brothers and sisters．They have dreamed of （56）taking（take） a great bike trip．（57）Itwas Wang Kun who first had the idea （58）tocycle along the entire Mekong River．They rode bicycles to travel along the Mekong River，the souce of （59）whichis in Qinghai Province．（60）Asit enters Southeast Asia，it travels slowly through hills and low valleys and the plains where rice grows．Despite the （61）difficulties（difficult），Wang Wei and Wang Kun were（ 62）determined（determination） to begin their journey at（ 63）thealtitude of more than 5，000 meters in Qinghai Province．During their journey，they experienced the continous change of the weather．Finally they reached Dali in Yunnan Province，（64）whereDao Wei and Yu Hang joined them．The （65）happiness（happy） of them went on with their great bike trip．分析 本文是写了王坤和王伟骑自行车沿着湄公河旅游的过程．
解答 56．taking 考查动名词．dream of 中of为介词，介词后边的名词要加ing变成动名词做介词的宾语．
57．It 考查强调句．本句是一个强调句，被强调部分是WangKun，根据强调句的固定结构It is/was+被强调部分+that+句子的剩余部分，所以答案是It．
58．to 考查动词不定式．根据句意：是王坤第一个有了沿眼湄公河骑自行车旅游的想法．the idea to do是做某事的想法．
59．which 考查定语从句．本句是一个非限制性定语从句，先行词为the Mekong River，在介词短语the souce of 后边用which引导．
60．As 考查连词．根据句意：当湄公河进入东南亚地区时，as是连词"当…时"．
61．difficulties 考查名词．根据句意：尽管有这些困难，王坤和王伟决心开始他们的旅行．difficulty是名词"困难"，通过前文可知这里的困难可不止一个，所以用复数形式．
62．determined 考查固定短语．根据句意：王坤和王伟决心开始他们的旅行．be determined to do sth是英语的固定搭配"决心做某事"．
63．the 考查冠词．根据句意：海报多于5000米的青海省．这里是特指，所以用定冠词the．
64．where 考查定语从句．本句是一个非限制性定语从句，先行词是Yunnan Province，在定语从句中做地点状语，所以用关系副词where来引导．
65．happiness 考查名词．分析句子可知，定冠词the后边要跟名词作主语，本句中要填的是主语，happy是形容词"高兴的"，它的名词是happiness．
点评 语法填空是通过语篇在语境中考查语法知识的运用能力，在解题前应快速浏览短文掌握大意，在读懂短文的基础上，结合短文提供的特定的语言环境去逐句分析．要解决好语法填空，离不开坚实的语法知识，有了坚实的语法知识才能对语言进行正确的分析和判断，从而答对题目．
