專業英語四級考試完型填空題輔導練習
No confidence, only by constantly cultivate confidence.以下是小編為大家搜索整理的專業英語四級考試完型填空題輔導練習,希望能給大家帶來幫助!更多精彩內容請及時關注我們應屆畢業生考試網!
Sugar is so much a part of our modern life that we only really think about it when, for some 11 , we cannot obtain it. It has been known to man for at least 3,000 years, but has 12 into common use only in 13 times. Until quite recently it was considered as a medicine and as a luxury for the very rich only.
Sugar is, then, 14 to our civilization. But what 15 is it? Of course, most of us recognize sugar immediately as the sweet material which we put in coffee or cakes. This common form of sugar is derived from two plants: the sugar cane (a type of grass which grows to a height of twenty feet) and the sugar beet (which grows under ground). But there are in fact many types of sugar, and the chemist recognizes hundreds of different 16 , each coming from a different source.
About 90% of the sugar is produced as food. Only 10% is used in industry for 17 other than food production. Yet sugar has great possibilities for use as the basis of chemicals. It can even be used for making plastics. In the future these potential uses will certainly be developed more than in the past.
There are many reasons why we should 18 the production of sugar. Most important is that it is one of the most highly concentrated of energy foods.
Thus sugar cane and beet produce an average of 7,000,000 calories per acre. In this way they have the advantage over potatoes which give only 4, 000, 000, while the 19 for wheat and beans is 2 ,000,000 each. So three acres of land growing wheat, beans and potatoes give only 20 more energy than one acre of sugar.
A. slightly ntion on rn
E. strongly re ificant
I. exactly ease osals
M. purposes eties ous
參考答案II. C 12. G 13. D 14. H 15. I
16. N 17. M 18. J 19. F 20. A
-
2018年專四議論文寫作範文
專四寫作經常考察學生對於一些社會重要話題的看法,比如利弊與是否應該等。這類議論文的寫作對考生的'考驗也比較大,下面,小編為大家送上2018年專四議論文寫作範文,供大家參考。2018年專四議論文寫作範文:該不該給病人實施安樂死Mercykillingisoneofthemostcontrove...
-
專業英語四級八級考試報名資格
參加本科專業英語四級統測報名對象為:(1)經教育部備案或批准的高等院校中英語專業二年級本科生。(2)經教育部備案或批准的高等院校中修完英語專業基礎階段教學大綱規定課程的二、三年制最後一學年的大專生。(3)教育部備案或批准有學歷的成人高等教育學院中四年...
-
最新專八考試改錯專題訓練
有教養的頭腦的第一個標誌就是善於提問。以下是小編為大家搜索整理的最新專八考試改錯專題訓練,希望對正在關注的您有所幫助!更多精彩內容請及時關注我們應屆畢業生考試網!Sportingactivitiesareessentiallymodifiedformsofhuntingbehavior.Viewingbiologically...
-
2017年英語專四考試完形填空複習題
天才就是百分之九十九的汗水加百分之一的靈感。以下是小編為大家搜索整理的2017年英語專四考試完形填空複習題,想了解更多精彩內容請及時關注我們應屆畢業生考試網!Cultureisthesumtotalofallthetraditions,customs,beliefs,andwaysoflifeofagivengroupofhumanb...