托福考试语法试题及答案详解6
1. _________ directly with most metals to form compounds called carbides.
A. Carbon reacting
B. Carbon reacts
C. The reaction of carbon
D. When carbon reacts
答案:B
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.
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。
2. Meteorites are slowed down by Earth's atmosphere, but if they are moving _________, they can form a crater on impact.
A. enough fast
B. fast enough
C. so fast enough
D enough are fast
答案:B
分析:enough的用法,固定顺序:adj.+enough
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。
3. Located at the upper end of each________ an adrenal gland, an integral part of the endocrine system.
A. kidney which is
B. kidney is
C. kidney being
D. kidney
答案:B
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.
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。
4. About 75 percent of all cadmium is used for cadmium plating of _________ such as iron and steel.
A. easily corroded metals
B. metals are easily corroded
C. corroded metals that easily
D. how easily metals corroded
答案:A
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。
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。
5. An atom is a basic structural unit of matter, the smallest particle of an element _________ into chemical combination.
A. that can enter
B. can it enter
C. when entering it can
D. that enters can
答案:A
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。
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。
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