A. mount B. mountains
C. mountainous D. mountaineers
1. A ______ country is one in which
there are many ______.
2. At one time, only experienced
______ tried to climb Everest.
3. I ______ the stairs step by step.
1. be ？to do 注定要...
2. by means of ？
3. cage (n.) ？； (v.) 把...关入笼中
4. feather (n.) ？
He had some trouble ______ himself to
college life when he came to college
in 2018.(2019年22题)
A. adjusting
B. adjusted
C. having adjusted
D.to adjust
句意：当他在2018年上大学时，他在适应大学生活上遇到困难。解析：考察固定搭配和非谓语动词。have trouble doing 做什么事有困难，是固定搭配，排除B D。
C选项having done 用了现在分词的完成式，表示动作发生在谓语动词(遇到困难)之前，逻辑上不符。
谓语动词had trouble(遇到困难)和adjust to college life(适应大学生活)
两个动作应该是同时发生的，所以选A。
请大家用have trouble doing 造句。 1. I have trouble controlling my emotions, but I try to do it well. (by 敏儿) 2. I have trouble keeping self-discipline, because I indulge in phone. 3. I have trouble running the 800.（by 白鲸）
1. fall into 掉落；分成
2. gain weight 增加体重
3. wit (n.) 才智
