1.—You should have thanked her before you left. —I meant ____,but when I was leaving I couldn"t find her anywhere. A.to do B.to C.doing D.doing it 答：B 译：你离开之前应该向她表示感谢的. 我是想这么做的,可要离开的时候,我到处找不着她. 析：mean to do sth.表示“心里想着要做某事”,而mean doing sth.表示“意味着...”所以排除CD 为避免得复,不定式可以省略到to为止.I meant to =I meant to do so. A.do缺少宾语,反而错了. 2.Though the foreign students came to our school only a month ago,they ____themselves to the conditions here now. A.have adjusted B.are adjusting C.had adjusted D.adjusted 答：A 译：虽然来我校才一个月,这些外国的学生现在已经适应这里的环境了. 析：主句中的时间状语为now,用现在时态,排除CD. 从句意看,不是现在正在调整适应,而是已经适应了,这才与although句相配. 3.Beneath our feet____that our life depends on for food and clothing. A.does the earth lie B.the earth lies C.lay the earth D.lies the earth 答：D 译：我们的脚下是我们的衣食所父母--地球. 析：为避免头重脚轻,本句用了全倒装,将作表语用的介词短语提到句首,带定语从句（that-从句）的主语the earth放在谓语动词（lies,是系动词,可用is替换）之后.
