Yuan Longping, China's “father of hybrid rice”， celebrated his 88th birthday on Friday by participating in the first International Development Forum of Rice Production. At 8 am Friday, without the __1__ of others, Yuan walked on stage by himself and __2__ the forum. And it was __3__ in central China's Hunan Province, in front of rice experts from all over the world.
After a 10minute break, he attended a discussion on development __4__ of rice in the world, with famous agricultural experts __5__ many academicians (院士). Though he was still recovering from an illness, his face __6__ when he spoke of an achievement he had made a few days earlier. Yuan set a new world __7__ in super hybrid rice output in Yunnan Province—17 tonnes per hectare.
Following the discussion, Yuan __8__ the experts to a hybrid rice test field about 20 km away. In the field, he __9__ his experience with them as well as __10__ from the United Nations World Food Programme. In addition to China, Yuan's hybrid rice is being introduced to __11__ grain problems in other parts of the world. The average __12__ of the hybrid rice planted in Kenya is four to five times greater than that of __13__ varieties.
In October, 21 students from a dozen countries studying in Hunan Hybrid Rice Research Center received a graduation __14__ from Yuan. Over the past few decades, Chinese research institutes and seed enterprises have not only __15__ tens of thousands of students from developing countries in Asia, Africa, and Latin America, but also sent experts to offer field __16__ in those countries.
At 2 pm, Yuan stepped onto the stage again and __17__ a 20minute keynote speech in English. He said hybrid rice should be __18__ developed to make contributions to food __19__ in the world. When asked what his birthday __20__ was after the speech, he said, “18 tonnes per hectare.”
中国“杂交水稻之父”袁隆平参加了首届国际稻作发展论坛，以此来庆祝自己88岁的生日；在参会过程中，袁隆平上台致辞、参加讨论、带领专家们去看试验田并用英语发表主题演讲。
1．A.existence B．assistance
C．distance D．instance
答案：B
解析：根据下文中的“Yuan walked on stage by himself”可知，袁隆平在没有他人帮助(assistance)的情况下，自己走上讲台去发表演讲。A项意为“存在”；D项意为“例子”。
2．A.addressed B．expressed
C．depressed D．exercised
答案：A
解析：参见上题解析。A项意为“演说，演讲”；C项意为“使沮丧，使不景气”。
3．A.formed B．held
C．built D．founded
答案：B
解析：根据语境可知，这次的论坛是在湖南省举行的。故选B。
4．A.times B．prices
C．trends D．locations
答案：C
解析：根据第一段第一句中的“the first International Development Forum of Rice Production”可推知，此处表示有关世界稻米发展趋势的讨论。故选C。
5．A.including B．controlling
C．concerning D．possessing
答案：A
解析：根据空前的“experts”与空后的“academicians (院士)”和常识可知，专家中包括许多院士，故选including“包括……在内”。
6．A.turned up B．opened up
C．sped up D．lit up
答案：D
解析：根据上文中的“Though he was still recovering from an illness”及下文中的“spoke of an achievement”可推知，尽管仍在康复中，但当袁隆平谈到几天前取得的成就时，他的脸上露出了喜色。A项意为“到达，露面”；B项意为“开门，营业”；C项意为“加速”；D项意为“喜形于色”。
7．A.record B．standard
C．type D．balance
答案：A
解析：根据下文中的“17 tonnes per hectare”并结合语境可知，袁隆平在超级杂交水稻产量方面又一次刷新了世界纪录，故选A。
8．A.sent B．moved
C．led D．helped
答案：C
解析：根据下文中的“In the field”可知，袁隆平当时应该是带领专家们到试验田里去参观。故选C。
9．A.taught B．shared
C．gave D．showed
答案：B
解析：根据语境可推知，袁隆平应是在试验田里，向专家们和联合国世界粮食计划署的要员分享自己的经验。故选B。
10．A.employers B．businessmen
C．investors D．officials
答案：D
解析：参见上题解析。investor“投资者”；official“要员，官员”。
11．A.reflect B．relieve
C．recreate D．replace
答案：B
解析：此处表示袁隆平的杂交水稻被引入世界其他地方，以缓解(relieve)这些地方的粮食问题。故选B。recreate“再现”。
12．A.quality B．quantity
C．yield D．cost
答案：C
解析：根据语境可知，此处表示在肯尼亚种植的杂交水稻的平均产量(yield)比传统的(conventional)水稻品种的产量高四到五倍。故选C。
13．A.complex B．conventional
C．contemporary D．simple
答案：B
解析：参见上题解析。C项意为“当代的”。
14．A.certificate B．grade
C．proof D．mark
答案：A
解析：根据句中的“studying”“graduation”和语境可知，此处表示袁隆平为来自十几个国家在湖南杂交水稻研究中心学习的21名学生颁发了毕业证书。故选A。
15．A.hired B．discovered
C．tested D．trained
答案：D
解析：根据本段第一句可推知，在过去的几十年里，中国的研究机构和种子公司培养了来自亚洲、非洲和拉丁美洲的发展中国家的成千上万的学生。故选D。
16．A.knowledge B．experience
C．guidance D．examination
答案：C
解析：根据上题的解析及本空前的“sent experts”可知，中国还派专家到那些国家提供现场指导。故选C。
17．A.received B．delivered
C．designed D．finished
答案：B
解析：根据该空前的“stepped onto the stage again”和空后的“speech”可知，袁隆平再次上台，发表了20分钟的主题演讲。故选B。
18．A.slowly B．normally
C．farther D．further
答案：D
解析：根据常识可知，水稻产量和粮食安全问题有关；再根据该空后的“make contributions to”可推知，袁隆平说，杂交水稻应该进一步发展，为世界粮食安全(safety)做出贡献。故选D。
19．A.import B．variety
C．value D．safety
答案：D
解析：参见上题解析。A项意为“进口”；B项意为“多样化”。
20．A.wish B．gift
C．party D．treat
答案：A
解析：根据第7空后的“17 tonnes per hectare”以及该空后“18 tonnes per hectare”可知此处是愿望。
