Question

Scientists have to work hard to keep _____ with modern discoveries and developments.

A．company

B．track

C．touch

D．pace

Answer 1

C

keep pace with跟上：1)This horse is too weak to keep pace with the others. 2)I can't help pace with your plan.Keep in touch with與......保持聯(lián)系；了解（情況）；1)People can keep in touch with each other even when they do leave. 2)I find it very difficult to keep in touch with all the recent developments in my subject.(我覺得很難了解我的科目當(dāng)前的一切新發(fā)展。)
Keep company(with)與......相好：Never keep company with dishonest persons.(千萬不要和不誠實(shí)的人來往。)Keep track of通曉事態(tài)，了解動向：I find it difficult to keep track of my old friends.(我很難了解我的老朋友的情況。)keep track of的反義結(jié)構(gòu)是lose track of（失去聯(lián)系）。
以上成語均為考試大綱規(guī)定的內(nèi)容。