英语专业八级改错练习题及答案解析(103)

会计考友

　　Excessive calories from sugar can contribute to weight problems,
　　and sugar is also well known for its ability to promote teeth __1__
　　decay.
　　Too many calories from fat have also taken their toll from the __2__
　　public's health. In 1988, the U.S surgeon general issued a report
　　linking high level of fat intake to an increased risk for obesity.
　　Obesity is a risk factor for high bloody pressure, stroke, and __3__
7 ~' O# A$ S( [# P+ i　　diabetes. Research has also shown a relationship between high
　　levels of fat in the diet and cancer. In addiction, scientists
9 [1 `9 r& ?0 d3 K% h　　have linked some types of fat to high blood cholesterol level,
　　which must lead to heart disease. Such reports have prompted __4__
　　health experts and nutritionists to recommend that adults and
　　children over age 2 not only watch their sugar intake but
+ y6 e' n5 ~( d　　also to limit their fat intake to a maximum of 30% of their __5__
　　complete calories. This has encouraged many people to turn __6__
, U! S9 N' b% A% _　　to products made with fat and sugar substitutes.
　　Low-calorie sugar substitutes have been around for decades,
6 e) f% `" H3 A, X1 X# p% }  R4 P　　but the recent trend in eating "light" has created a boom in this
　　branch of food-technology research. Today, food chemists are
+ P0 g( v/ |, G. A+ v& R3 Q- @　　seeking for better substitutes by modifying existing foods, __7__
　　searching for new compounds in nature, and concoct entirely __8__
　　new substances. But the research process is complicated by our
　　incomplete understanding of how the human body interacts with
　　the chemicals we eat.
3 _; t. w, }! E/ }6 l+ n; }" ]　　For example, scientists do not already know exactly why some __9__
　　substances taste sweet. Other questions involve the safe and __10__
  _% T6 T/ G4 G! L' F　　usefulness of artificial fats and sweeteners.
　　答案：
　　1.teeth--tooth
. G7 O2 Z. ?% {4 L9 d　　名词直接作前置修饰语的时候，应该用单数形式。
　　2.（toll）from--on
　　take one's toll on somebody/ something 的意思是“使得……受损失、对……产生不良影响”，如The terrible weather took its toll on my health。恶劣的天气对我的健康产生（不良）影响。
　　3.bloody--blood
　　bloody和blood都可以作为定语修饰名词，但是bloody的意思是“血腥的”。
　　4.must--may/can
: y. J! m5 F1 q　　这里上下文并没有必然的联系，所以用must是不恰当的，应该用比较弱的推测语气。
; ]. U7 a9 v  _( @) P1 O. T　　5.to（limit）--/
　　but also和前面的not only 构成并列结构，所以动词应该是不带to的不定式。
　　6.complete--total
　　原文的意思是“摄入的卡路里的总量”，表示数量上的总数应该用total，complete侧重表示 程度，组成部分的完整性。
' D! d; o+ ?3 R" R1 a- x　　7.for--/
　　seek是及物动词，直接跟宾语，要和look for 区分开来。
% Q7 E4 d& W# |　　8. concoct--concocting
　　动词concoct通过连词and和前面的modifying、searching并列，所以应该是-ing分词。
0 D6 o6 i. L) j0 n+ a- @8 D　　9.already--yet
　　这是一个否定句，所以应该用yet。
" F' N0 L1 N& Z! O% _　　10.safe--safety
　　safe是形容词，它作为名词的意思是“保险箱”，所以应该改成safety