1.B catch和understand都表示理解、听懂
catch常说：Can you catch me?能听懂我说的吗?
2.A
一般式：Einstein was not only a famous scientist but also a fairly good violinist.
not only提前：Not only was Einstein a famous scientist,but also he was a fairly good violinist.
Not only中only为否定,放在句首时,其后句子应部分倒装,所谓部分倒装,即疑问句语序,如上句.
例：Not only can I speak English,but also I can speak Spanish.
这句不能说Not only I speak English,but also I can speak Spanish.
同理,上题不能说：
Einstein not only a famous scientist but also a a fairly good violinist.前面没有动词啊
做这种题,变成一般式（not only 不提前）
I can speak not only English but also Spanish.
然后再选,主语谓语宾语不能少哦!
晕我打错了~