Question

All the junior high school students should try their best to study hard, __________they can't get a chance to study in a senior high school.

A.so B.but C.or D.and

Answer

C

【解析】

句意：所有的初中生都应该努力学习，否则他们就没有机会上高中。

考查连词辨析。so因此，表因果；but但是，表转折；or或者、表选择或意为否则，要不然；and和，表顺承；根据上文“All the junior high school students should try their best to study hard” 和空格后“they can't get a chance to study in a senior high school”表示在以前面的句子为条件下的相反假设，意为“要努力学习，否则就没有机会上高中”；故选C。