1.(2015课标全国卷Ⅰ)A few hours before/earlier, I'd been at home in Hong Kong, with (it)choking smog.
答案 its 考查代词。此处为形容词性物主代词作定语修饰名词smog。
2.(2015课标全国卷Ⅱ)The adobe dwellings(土坯房) built by the Pueblo Indians of the American Southwest are admired by even most modern of architects and engineers.
答案 the 考查冠词。该空后面是最高级标志词most,表示“最……”,故用定冠词the。
3.(2014课标全国卷Ⅰ)Now, years later, this river is one of most outstanding examples of environmental cleanup.
答案 the 考查冠词。句意:现在,多年之后,这条河流成为了环境清理最杰出的例子之一。该空后面是最高级,所以应填定冠词the。
单句改错
1.(2015课标全国卷Ⅰ)Now I am living in a city, but I miss my home in countryside.
答案 countryside前加the 考查冠词。in the countryside“在农村/乡下”为固定表达。
2.(2015课标全国卷Ⅰ)We must find ways to protect your environment.
答案 your→our/the 考查代词或定冠词。此处为形容词性物主代词作定语,句子的主语为we,故需用our与之相呼应。也可用定冠词the来限定。