每组词汇学习有15道小题。在每道题的句子里都有一个加底线的词或短语,请在四个选项中找出与加底线的词或短语意义最相近的一项。# F, z0 m# _4 W$ f% F0 Y
1.The old concerns lose importance and some of them vanish altogether.7 c5 r5 j' N9 U8 \: j2 ]
A)develop B)disappear C)linger D)renew
5 t8 _$ B% n& x' w; c) o( W' Q2 A' D2.In the United States educational system, intermediate school is the transitional phase between the primary grades and high school.
2 @/ u$ }/ h: F" R A)stage B)notion C)pattern D)alternative% D% k: b% ~% C- f
3.Fluoride deters tooth decay by reducing the growth of bacteria that destroy tooth enamel.4 }# t% _0 \3 x7 b% t8 n. A
A)facilitates B)overwhelms C)inhibits D)loosens1 O: Y5 o; c4 _, Z& A, D
4.The firm of Bonnin and Morris in Philadelphia Was probably the first American company to manufacture porcelain.1 w* Y3 ~6 Y v, P% e
A)Silverware B) crystal C) china D) linen
0 X) g. V! w6 d) K5.Gunpowder was used extensively in firearms prior to 1990.
8 G( R& @. z# N3 J Y$ s+ K A)in B)around C)from D)before |