</p> 6. _________ directly with most metals to form compounds called carbides.. t* c" k; L% I. ~7 w% \. g
A. Carbon reacting
& Z( Y2 v/ M$ t B. Carbon reacts- E+ I8 E2 _6 C2 r9 ^& V& A6 K
C. The reaction of carbon( a( n- `2 Y6 S( b$ D2 K
D. When carbon reacts0 B) r s5 e1 r! y! a6 Y
答案:B
6 {( ~* u' p |2 r/ q 分析:从句意来看,called在这里不是谓语动词,而是分词做后置定语:…… which are called carbides.空格中缺主语和谓语,选B.2 Y2 t1 N8 [, S/ Y4 r* C4 O9 f
参考译文:碳直接跟大部分金属反应而形成碳化物的化合物。% _+ ]- G0 |+ H
7. Meteorites are slowed down by Earth's atmosphere, but if they are moving _________, they can form a crater on impact.9 g# J, n i- Q) s& [
A. enough fast3 `: p( r& l/ s( X. ^
B. fast enough
, F. t) T& N! c7 U- _ C. so fast enough
: k2 {. q% N" C" ~: B# V D enough are fast3 Y; W, {% e! v* Y/ g# I; l2 S# j
答案:B* B4 d E( T! j
分析:enough的用法,固定顺序:adj.+enough
. U! ~7 X# C9 U7 W8 \ k' c 参考译文:陨石受地球大气阻挡而慢下来,但如果他们移动的足够快,他们能在撞击后形成一个大坑。) b, Y0 Y$ U5 X+ O4 ^0 z' b% \+ o
8. Located at the upper end of each________ an adrenal gland, an integral part of the endocrine system.4 U6 J, T" a- K/ ?
A. kidney which is$ b! J! n2 q, |( S. |- \& v5 A
B. kidney is$ z9 P" I7 b$ U7 I
C. kidney being0 \- B2 p6 S1 {; t) c9 I
D. kidney
. G0 F, W8 J- n4 s 答案:B
6 [) F1 `( |. x7 A, G& w# h7 s- V- D 分析:该句为简单句,而且使用了倒装形式,原句为:An adrenal gland, an integral part of the endocrine system is located at the upper end of each kidney.
; }1 i9 P, L) ~( D) T ? 参考译文:肾上腺是内分泌系统的一个完整的部分,它位于肾的上端。
0 D7 ?' h8 x1 B" V" A 9. About 75 percent of all cadmium is used for cadmium plating of _________ such as iron and steel.
0 p" U9 i! A3 i, @ A. easily corroded metals3 b0 F1 I8 R) m
B. metals are easily corroded
( N. `" l$ K- z C. corroded metals that easily
8 [. k2 [: E' g6 g# H3 R7 | D. how easily metals corroded
; {- y9 r5 k- c' l2 B! J. I 答案:A
- p9 ?2 {; P# g$ f6 ^ 分析:B中的are多余,否则句中出现两个谓语,错;C中的that引导定语从句,而从句缺谓语,错;用法错误,of后一般接名词。 c, b+ g' b) \% ^
参考译文:75%的所有镉金属都用来对类似铁、钢的容易腐蚀的金属进行镉镀膜了。
. E+ B# l5 F5 c) f# i 10. An atom is a basic structural unit of matter, the smallest particle of an element _________ into chemical combination.
( e# s/ @. X' N V' e A. that can enter) R/ V/ M0 |. ^9 o
B. can it enter2 S- D1 E9 {6 `7 p! \
C. when entering it can' v6 \6 v2 b2 l0 U" R! C5 e
D. that enters can
' d+ L8 K T6 u6 { 答案:A
! Q6 [9 j% {7 ~" C1 h! s 分析:that引导定语从句,element为先行词。the smallest particle of an element 是 a basic structural unit of matter的宾语同位语。: Q- w5 Z/ i3 d! E6 U; a! s
参考译文:原子是物体的基本结构单元,是元素形成化学组合特性的最小的颗粒。 |