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

　　A.company　　B.track　　C.touch　　D.pace

　　2、He didn't _____ what I read because his mind was on something else.

　　A.hold on　　B.catch on　　C.take in　　D.get over

　　3、We made plans for a visit but _____ difficulties with the car prevented it.

　　A.consequent　　B.subordinate　　C.substantial　　D.subsequent

　　4、arrogance and pride are similar in meaning, but there is _____ difference between them.

　　A.a submerged　　B.an indecisive　　C.an indistinct　　D.a subtle

　　5、This watch is _____ to all the other watches on the market.

　　A.superior　　B.advantageous　　C.super　　D.beneficial

　　參考答案&解析：

　　1、D.pace.

　　[注釋]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)。

　　2、C.take in

　　[注釋]take in(=understand)理解。hold on(打電話時)不要掛斷;catch on明白(作不及物動詞用)，catch on to懂得，明白(作及物動詞用);get over克服。

　　3、D.subsequent.

　　[注釋]subsequent(=later, following)隨后得，接著發(fā)生的：subsequent events(隨后發(fā)生的事件)。consequent(作為結(jié)果)而隨之發(fā)生的：His long illness and consequent absence put him behind in his work.根據(jù)題意，本題用subsequent更妥。

　　4、D.a subtle.[注釋]subtle微妙的，微細(xì)的，難以捉摸的。a subtle difference.(微細(xì)的差別)。Submerged浸沒的;indecisive非決定性的，非結(jié)論性的，未清楚標(biāo)明的;indistinct不清楚的，模糊的;subconscious下意識的。

　　5、A.superior.[注釋]superior。