托福习题练习

托福考试易错题(2016-1-29)
1题:() carries the genes, which determine the hereditary characteristics of the cell or organism. 
A. The chromosome 
B. The chromosome that 
C. Whereas the chromosome 
D. There is a chromosome 
【单选题】:      

2题:() directly with most metals to form compounds called carbides. 
A. Carbon reacting 
B. Carbon reacts 
C. The reaction of carbon 
D. When carbon reacts 
【单选题】:      

3题: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 
【单选题】:      

4题: 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 
【单选题】:      

5题: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 
【单选题】:      

6题: 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 
【单选题】:      

7题: Chaparral consists of () stunted by short, wet winters followed by long, dry summers. 
A. are trees and shrubs 
B. how trees and shrubs 
C. trees and shrubs have 
D. trees and shrubs 
【单选题】:      

8题:The Monroe Doctrine of 1823 was () of United States policy concerning the activities and rights of European powers in North and South America. 
A. when a statement 
B. as a statement 
C. a statement 
D. to a statement 
【单选题】:      

9题:() to stand in a warm place, it sours because of the presence of bacteria that convert milk sugar into acid. 
A. When milk is allowed 
B. When is milk allowed 
C. Milk, when allowed 
D. When milk allowed 
【单选题】:      

10题:While play is important at all levels of human development, () takes on particular significance when children are five and six years old. 
A. it 
B. and 
C. which 
D. because it 
【单选题】:      

 

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