Question

— Have you been here before?
— Yes. This is the third time that I ______ to Shanghai.

A．come

B．came

C．have come

D．had come

Answer 1

C

試題分析：考察固定句式中的時(shí)態(tài)。固定句式：It /That/This is the...time that sb have done sth；It /That/This was the...time that sb had done sth。“這是某人第幾次做某事的時(shí)候了”；結(jié)合日常生活實(shí)際，能夠計(jì)算到這是第幾次做某事，表明該動(dòng)作已經(jīng)發(fā)生，因此，要用完成時(shí)態(tài)——主句用現(xiàn)在時(shí)，從句用現(xiàn)在完成時(shí)；主句用過(guò)去時(shí)，從句用過(guò)去完成時(shí)。本句前面使用了is。說(shuō)明后面使用的是現(xiàn)在完成時(shí)。故C正確。
點(diǎn)評(píng)：本題的固定句式為：It/This is/was the序數(shù)詞 time that從句，句意：是某人第幾次做某事的時(shí)候了。如果前面是is，后面就使用現(xiàn)在完成時(shí)；如果前面是was，后面就是過(guò)去完成時(shí)。