2. step up ①走上(阶梯等)；②加速、加快；③促进、增加、改善 vi. & vt.

相关短语：step on踩、踏　　 step aside站到一边、让路、让工作给某人(for sb.)

　 　　　　　 　　　step down辞职、下台、从(车子等)下来

　　 　　　　　　　 search for

1. run into　　　 ①撞上……；　　　　　　　 ②偶然遇见(某人)；　 ③跑进(房间等)；

④(液体)流入；　　　 ⑤陷入(困难等)；　　 ⑥(金额)总计达……

相关短语：run across①偶然遇上(某人)；②跑过，横跨(道路等)

　meet with① +sb. 和某人会面(商讨问题等)；② + sth. 遭遇到(不愉快的事)

　　　　 knock into①偶然遇到(某人)②撞在……上；③将……打入……

19.(★★★★★)-Who gave you this message?

　　 -A man________himself Mr.Zhang.

　　 A.called B.calling C.calls D.is called

18.(★★★★★)-Would you mind________me the dicionary?

　　 -Of couse not.But it is ________my reach.

　　 A.passing;out B.passing;beyond

　　 C.to pass;far away D.to pass;out of

17.(★★★★★)Silver is the best conductor of electricity,copper________it closely.

　　 A.followed B.to follow C.following D.being followed

16.(★★★★)With his son________,the old man felt unhappy.

　　 A.to disappoint B.to be disappointed

　　 C.disappointing D.being disappointed

15.(★★★★)________good,the food was soon sold out.

　　 A.Tasted B.Being tasted

　　 C.Tasting D.Having tasted

14.(★★★★)O’Neal works hard.He is often seen________heavily before his teammates have even arrived at practice.

　　 A.sweated B.to be sweated

　　 C.sweating D.being sweated

13.(★★★★)He didn’t seem to mind________TV while he was trying to study.

　　 A.he easily watches B.his easy watching

　　 C.his easily watching D.hiseasilywatched.

12.(★★★★)The time he has devoted in the past ten years________the disabled is now considered ________of great value.

　　 A.to help;being B.to helping;to be

　　 C.help;to be D.helping;being