Tham khảo tài liệu 'đề thi số 9', tài liệu phổ thông, ôn thi đh-cđ phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | L KIM T êNG Trường THPT Cẩm thủy 1 Thanh hoá ĐỀ THI SỐ 9 Question 1 Read the reading passage and point out the statements below are True T False F or Not given NG. Since ancient times rice has benn the most commonly used food grain for the majority of people in the member of the grass family Graminae rice Oryza sativa can be grown successfully under climatic conditions ranging from tropical to cultivated rice produces higher yields than any other grain with the exception of corn and although the total area planted in rice is far smaller than that devoted to wheat the world total is about one-third less the rice crop feeds a far greater proportion of the world s population. In contrast to wheat and corn only a small percentage of the total rice crop enters intern-ational quite 4 of the total worldwide becomes an export commodity although the United States exports approximately 45 of its total international trade in rice has prevented the establishment of large active trading centres like those for marketing cereal grains and formulation of official grain standards for rice has been low to develop. During the past quarter of a century rice-breeding programs have been initiated in several to diseases and insects was the mojor objective of the earlier Reseach but hybrid programs have dominated dwarf plants that can withstand deep water and that respond to fertilisers have been grain quality and higher protein levels have been added objectives of new programs designed to improve nutrition. 1 Rice has been eaten since ancient times. 2 Rice is a member of the grass family. 3 Rice can only be grown in tropical climates. 4 Some people eat rice three times a day. 5 Rice feeds more people than wheat. 6 Most rice is traded internationally. 7 Thailand is a major exporter of rice. 0 L KIM T êNG Trường THPT Cẩm thủy 1 Thanh hoá 8 Rice breeding programs are .
