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。6 c' s' v* h. G. O$ ]8 g
1.The old concerns lose importance and some of them vanish altogether.
4 {3 X) v, }: R, s& B7 o# s# ~& a A)develop B)disappear C)linger D)renew4 j. Y* b, R, S& Y
2.In the United States educational system, intermediate school is the transitional phase between the primary grades and high school., O L. B4 S6 _, `
A)stage B)notion C)pattern D)alternative
- n$ u+ _+ y* Y8 m3.Fluoride deters tooth decay by reducing the growth of bacteria that destroy tooth enamel.
0 q) C% V5 I; K7 R A)facilitates B)overwhelms C)inhibits D)loosens
, ]/ O4 T' p9 f9 a( k( F: n4.The firm of Bonnin and Morris in Philadelphia Was probably the first American company to manufacture porcelain., Z. `* u5 Q% Y1 I ]7 l- U
A)Silverware B) crystal C) china D) linen
' E( `7 }$ f( n; q3 m; v0 F5.Gunpowder was used extensively in firearms prior to 1990.1 F' F( B6 x( f' m) b
A)in B)around C)from D)before |