单选题The shorter growing seasons expected with climate change over the next 40 years will endanger hundreds of millions of already poor people in the global tropics, say researchers working with the world's leading agricultural organisations. The effects of climate change are likely to be seen across the entire tropical 25 but many areas previously considered to be 26 food secure are likely to become highly vulnerable to droughts, extreme weather and higher temperatures, say the researchers with the Consultative Group on International Agricultural Research. Intensively farmed areas like northeast Brazil and Mexico are likely to see their 27 growing seasons fall below 120 days, which is 28 for crops such as corn to mature. Many other places in Latin America are likely to 29 temperatures that are too hot for bean production, a staple in the region. The impact could be felt most in India and southeast Asia. More than 300 million people in south Asia are likely to be affected even with a 5% decrease in the 30 of the growing season. Higher peak temperatures are also expected to take a heavy 31 on food producers. Today there are 56 million crop-dependent people in parts of west Africa and India who live in areas where, in 40years, maximum daily temperatures could be higher than 30℃. This is close to the maximum temperature that beans can tolerate, while corn and rice yields suffer when temperatures 32 this level. 'We are starting to see much more clearly where the effects of climate change on agriculture could 33 hunger and poverty , 'said research leader Patti Kristjanson. 'Farmers already adapt to variable weather by changing their planting schedules. What this study suggests is that the speed of climate 34 and the magnitude of the changes required to adapt could be much greater.' A. shifts B. lessen C. width D. experience E. critical F. prime G. vulnerable H. zone I. intensify J. exceed K. toll L. length M. gradually N. immune O. relatively

单选题The research described in the passage is primarily concerned with answering which of the following questions?

单选题Furthermore, the campaign itself was {{U}}lavishly{{/U}} financed, with plenty of money for top-flight staff, travel, and television commercials.

单选题The first paragraph implies that

单选题She's beginning to recover now and taking a little ______.

单选题In ancient mythology there were no impassable ______ separating the divine from the human beings.

单选题Professor Wang, ______ for his splendid lectures, is warmly received by his students.

单选题To punish those who violate the family-planning policy the Chinese government does which of the following7

单选题Over the years, Jimmy Connors ______ phenomenal displays of tennis and temper—and at the U.S. Open last week, he exhibited both again.

单选题下面的短文后列出了10个句子，请根据短文的内容对每个句子作出判断：如果该句提供的是正确信息，选择A；如果该句提供的是错误信息，选择B；如果该句的信息文中没有提及，选择C。在答题卡相应位置上将答案选项涂黑。Finding Paradise 天堂 and Success in Retirement　　Ivy Singh and her husband had their retirement all

单选题A: ______B: Well, it's 250 dollars a month, including heating.

单选题A: I ought to eat before I head to the meeting. B: ______.

单选题He (was) (lying) (on) the couch, (enjoyed) his cigar.A. wasB. lyingC. onD. enjoyed

单选题He______studied, yet he passed every exam.

单选题Childhood can be a time of great insecurity and loneliness, during which the need to be accepted by peers______great significance.

单选题Research should continue on controlled nuclear fusion, but no energy program should be {{U}}premised{{/U}} on its existence until it has proved practical.

单选题I would like to get another table like this one, but the company that made it is out of ______. A. order B. business C. practice D. style

单选题The______of blood always makes him feel sick.