小题1:couldn’t stop thinking of
小题2:teaching me how to search
小题3:used to be clean
小题4:has been away from our school for
小题5:moved at high speed
小题6:have brought many advantages but also have caused a lot of problems.
本题考察以下词组(内容):
1. can’t help doing sth 忍不住做某事
2. mind doing …和疑问词+动词不定式
3. used to do sth.过去常常做某事
4. be away from…从...离去,,在远处远离
5. at high speed……以高速
6. 考察现在完成时“have/has+过去分词”