- 相關推薦
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 B.intention C.reason D.modern
E. strongly F.figure G.come H.significant
I. exactly J.increase K.proposals L.turn
M. purposes N.varieties O.serious
參考答案
II. C 12. G 13. D 14. H 15. I
16. N 17. M 18. J 19. F 20. A
【專業英語四級考試完型填空題輔導練習】相關文章：
英語四級考試完型填空題做題技巧07-18
專業英語四級考試完型填空試題及答案08-20
專業英語四級考試完型填空檢測試題08-24
職稱英語完型填空題10-17
公共英語四級考試完型試題輔導訓練09-04
專四考試完型填空過關練習09-18
學位英語考前輔導試題完型填空練習沖刺07-18
專業英語四級考試輔導完形填空練習題08-05